JPS6387434A - Copying machine - Google Patents

Abstract

PURPOSE:To prevent the occurrence of a trouble, e.g. choking with a sheet, by a method wherein, when manual insertion sheet feed is selected, selection of a double/composite copy mode, being the sheet feed mode of a sheet refeed device, is prohibited. CONSTITUTION:When it is detected from OFF of a manual insertion tray detecting switch SW9 that manual insertion sheet feed from a manual insertion tray 36 is selected, a control device turns OFF double and composite copy mode LEDs. Simultaneously, solenoids, driving respective switch claws 160 and 165 of a sheet refeed device 130, are brought into an OFF-state, and a double copy mode and a composite copy mode, being the sheet feed mode of the sheet refeed device 130, are automatically prohibited. In place of the manual insertion tray detecting switch SW9, a signal from a sensor Se2, detecting that a copy sheet is inserted in the manual insertion tray 36, may be used. This constitution prevents the feed of a copy sheet incapable of being contained to the sheet refeed device, and enables prevention of the occurrence of a trouble, e.g. choking with a sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying machine, in particular, to a copying machine that once receives copy paper that has been ejected from the copying machine main body, and then re-feeds it from the paper feeding section of the copying machine main body. The present invention relates to a copying machine equipped with a paper refeeding device.

In general, in order to perform double-sided copying or composite copying in a copying machine, it is necessary to feed the copy paper again after the first copy has been made, and various paper refeeding devices have been proposed for this purpose. .

For example, JP-A-49-63441, JP-A-56-
Publication No. 95264 states that in order to enable double-sided copying with a simple operation, in a copying machine equipped with a U-turn path type paper path, a fully loaded cassette is inserted between the paper ejection section and the paper feed section. When copying to the front side, it is moved to the paper ejection section and the copy paper is picked up once, and when copying to the back side, it is moved to the paper feed section and the receiver re-feeds the copy paper that was picked up. The paper refeeding device has been opened completely.

Furthermore, Japanese Patent Application Laid-Open No. 58-134659 discloses that in a copying machine equipped with a straight bus-type paper passage, a sheet storage cassette having a sheet storage opening and a sheet feeding opening is connected to a sheet ejection section and a sheet feeding section. A paper refeeding device is disclosed that can be attached to and detached from a paper portion by flipping it upside down.

However, in each of the above-mentioned paper refeeding devices, since the cassette itself can be moved from the paper ejection section to the paper feed section, it is necessary to provide a separate paper ejection tray in the paper ejection section when back side copying is performed, and each cassette is connected to the main body of the copying machine. The problem is that it is designed as a special product, and it is impossible to install it as an option in existing copying machines that do not have a paper refeeding device.

Therefore, the present applicant has already developed a paper refeeding device main body, which is equipped with a paper ejection tray and a paper refeed cassette that can also be attached to and detached from the paper feed section of the copying machine main body, to be attached to the paper ejection section of the copying machine. (Japanese Patent Application No. 61-18501).

By the way, when such a paper refeeding device is applied to a copying machine that can manually feed copy paper one sheet at a time, if the paper refeeding device is used for manual paper feeding, the copy paper will not be fed into the paper refeeding device. There may be cases where the paper cannot be accommodated, and there is a risk that paper jams may occur. That is, the paper refeeding device is limited in the size of copy paper that can be accommodated, whereas manual paper feeding can feed copy paper of various sizes.

In order to solve the above problems, the copying machine according to the present invention includes: (a) a copying machine main body capable of manually feeding copy sheets one by one; and (b) paper refeeding. A paper refeeding device having a paper refeeding cassette that is detachable from the apparatus main body and also detachable from the paper feeding section of the copying machine main body, and which can be installed in the paper discharging section of the copying machine main body or the non-sorting paper discharging section of the sorter. (c) means for detecting that manual paper feeding is selected; (d) means for selecting a paper feeding mode of the paper refeeding device; and (e) when manual paper feeding is selected. The present invention is characterized by comprising a control means for prohibiting selection of a double-sided copy mode or a composite copy mode using the paper refeeding device.

In a configuration of 1 month or more, when manual paper feeding is selected, selection of double-sided copy mode or composite copy mode in the paper refeeding device is automatically prohibited. This prevents copy paper of a size that cannot be accommodated from being fed into the paper refeeding device and causing problems such as paper jams.

[Hereinafter, embodiments of a copying machine according to the present invention will be described in the following order with reference to the accompanying drawings.

a, Overall configuration of the first embodiment, 1ll b, Overall configuration of the second embodiment, Figure 2 C5 Overall configuration of the third embodiment, Figure 3 d, Copying machine main body, Figures 1 to 3 e, Automatic document feeder, Figures 1150 to 3f, Sorter,
Fig. 2, Fig. 3 g, Paper refeeding device, Fig. 4 to Fig. 9, Special copy mode, Fig. 10 to Fig. 12 h-1, ILC charge %-F, gx o Fig. h −
2, Anamo copy mode, Figure 11 h-3, Book copy mode, Figure 12 i, Operation panel, Figure 13
Figures ~ Figure 17 i-1, Copying machine main body operation panel, Figure 13, Figure 14 i-2, Sorter operation panel Figure 15 i-3, Paper refeed device operation spring Figure 16 i-4 , copy paper selection mode operation panel, FIG. 17j, control circuit,
Fig. 18 to Fig. 22 j-1, copying machine main body control circuit, Fig. 18 j-2. Three-stage paper feeding unit control circuit, 19th factor j-3, optical system control circuit, 20th
Figure j-4, automatic document feeder control circuit, Figure 21 j-5
．． Sorter control circuit, Figure 22 j-6. Paper refeeding device control circuit, Fig. 23 shows the control procedure,
Figures 24 to 83 show -1. Control of the copying machine body. Figures 24 to 56 show -2. Optical system control. Figures 57 to 59 show -3. Automatic document feeder control. , -4 in Figures 60 to 67, control of sorter, -5 in Figures 68 to 73
, Control of paper refeeding device, FIGS. 74 to 83 [a, Overall configuration of the first embodiment, FIG.
50) A three-stage paper feed unit (60), an automatic document feeder (80), and a paper refeeder (130) are optionally attached to the copying machine main unit 1) installed above. The paper refeeding device (130), which will be described in detail below, is directly attached to the paper ejection section of the copying machine main body (1), and its paper refeeding cassette (150) is connected to the paper feed slot (20) of the copying machine main body (1).
) or (25) and the paper feed ports (62), (63), and (64) of the three-stage paper feed unit (60).

[b. Overall configuration of second embodiment, FIG. 2] In this second embodiment, a sorter (100) as an option is further connected to the paper discharge section of the main body (1) of the copying machine. In this case, the paper refeeding device (130) is installed at the non-sort paper discharge section of the sorter (100).

[c. Overall configuration of the third embodiment, Figure 3] This third embodiment has a first sorter (100) and a second sorter (100).
100a) connected via a bridge (120). In this case, the paper refeeding device (130) can be installed at the non-sort paper discharge section of the second sorter (100a).

[d. Copying machine main body, FIGS. 1 to 3] The internal structure of this copying machine main body (1) is basically the same as that of a conventional electrophotographic copying machine. In other words, the copying machine body (1
) is equipped with a photoconductor drum (2) that can be rotated in the direction of arrow (a), and around this photoconductor drum (2) are a main eraser lamp (3) and a sub-charging charger. -v (4), sub-eraser lamp (5), main charger (6), magnetic brush developing device (7)
, transfer charger (8), copy paper separation charger (9)
), a blade-type cleaner device (10), etc. are sequentially installed. The photoreceptor drum (2) has a photoreceptor layer on its surface, and - for each copy, an eraser lamp (3) is used.
, (5) receives light irradiation, and the charger (4),
(6), and then receives image exposure from an optical system (11), which will be described next. Motor (Ml)
drives the photoreceptor drum (2) and the like. Note that a color toner detection sensor (Se4) is attached above the developing device 7).

The optical system (11) can be installed under the document platen glass (18) in the direction of arrow (b) so that it can be scanned and burnt.
2), first mirror (13), second mirror (14), third
Mirror (15), projection lens (16), fourth mirror (1
7) 0w, the draft image is composed of mirror (13)
, (14).

(15), a projection lens (16), and a mirror (17) before reaching the photosensitive drum (2). A fixed position switch (SWIO) is provided to detect whether the optical system (11) is at a predetermined position when starting scanning in the direction of arrow (b), and a timing switch (SWII) is provided to detect whether or not the optical system (11) is in a predetermined position when starting scanning in the direction of arrow (b). It is provided to determine the timing for turning on the pair (40). An automatic exposure sensor (Set) is attached above the projection lens (16), and a mirror (15
) is used to detect the original density.

The copying magnification is set by moving the projection lens (16) in the optical axis direction with a motor (M2). When the copy magnification is (n),
The exposure lamp (12) and the first mirror (13) are rotated by a motor (M3) in response to the rotation of the photoreceptor drum (2) at the circumferential speed (■: constant regardless of magnification or variable magnification). (v/
scan in the direction of arrow (b) at a speed of n ), and at the same time,
The second mirror (14) and the third mirror (15) are (v/
The zero image scanned at a speed of 2n) is transferred from the fourth mirror (17) to the photoreceptor drum (
2) A slit pattern can be exposed on the top.

The automatic paper feed cassette (30
) is installed in the upper paper feed slot (20), a three-stage paper feed unit (6o) is installed in the lower paper feed slot (25), and a manual paper feed section (35) equipped with an openable/closable manual feed tray (36) is installed. ) has been installed at the top. The three-stage paper feed unit (60) is installed as an option in place of the second automatic paper feed cassette that is set in the lower paper feed port (25) as a standard equipment.

Automatic paper feed cassette (30) or manual paper feed tray (36)
) is selectively fed into the copying machine main body (1) by each paper feed roller (21), (37), passes through each pair of transport rollers (22), (23), It is conveyed to the timing roller pair (40) which is in a pressed state, and waits there for a while. The paper feed roller (26) is connected to the lower paper feed slot (
25).

In addition, the desk (50) is also available as an option with a built-in paper feeding device (not shown), from which the fed copy paper can be conveyed through a pair of conveying rollers (41) to a pair of timing rollers (40). .

The copy paper fed from each paper feed section is conveyed to the transfer section by a pair of timing rollers (40) in synchronization with the toner image formed on the photoreceptor drum (2), and the copy paper is charged at the transfer section. The toner image is transferred to the photoreceptor drum (2) by the corona discharge of -v (8), and then by the AC corona discharge of the separation charger (9) and the stiffness of the copy paper itself. It is separated from above the photoreceptor drum (2). Subsequently, the copy paper is conveyed to the right while being attracted onto a conveyor belt (42) equipped with an air suction means (not shown). Next, the toner image is melted and fixed by passing through a fixing device (43), and the toner image is melted and fixed by passing through a pair of discharge rollers (43).
4) to the refeeding device (130) (see Figure 1) or the sorter (100) (see Figures 2 and 3).

The copy paper being ejected is detected by a paper ejection detection sensor (Se5).

By the way, the paper size detection switch (SWI)
SW4), (SW5) to (SW8) are upper and lower paper feed ports (20).

(25) are microswitches installed in parallel,
The size of the copy paper in the cassette and whether the copy paper is placed vertically or horizontally with respect to the paper feeding direction are detected.

The size that can be copied, that is, the size of copy paper that can be set in each paper feed section is, for example, A3.

[A4, [A5, [B4, [B5], [A
4 pieces.

For [BS], vertical or horizontal can be selected. Also, S4? (SWI)~(SW4)', (SW5)~
(SW8) Attachment and detachment of the paper feed slot (20) is also detected.

This means that the presence or absence of copy paper in (25) is indirectly detected. The size and setting direction of the copy paper are swivel f (SwI) ~ (SW4), (SW5) ~ (
SW8) (7) old'y.

It is detected by the 4-pit code corresponding to the OFF combination, and the random access memory (
RAM').

Among the various detection means installed on the copying machine main body (1), the manual tray detection switch (SW9) is the manual tray detection switch (SW9).
36) is closed or not.
36) is closed when not in use, the sensor (Se2)
), (Se3) is the 0 display mode changeover switch (S
wI2) is (51), (52), (5
It is used to switch between the two display modes of display (241) in 3). The front door detection switch (SWI3) is a switch that detects opening/closing of the front door of the copying machine main body (1).

Automatic exposure center setting switch (SWI4), (Sw
I5) is used to set the center of the exposure level during automatic exposure.

The three-tier paper feed unit (60) is movably supported on the rail (61), and cassettes (62), (63), and (64) are set in the upper, middle, and lower three-tier paper feed ports, respectively. It looks like it can be done. Docking detection switch (SWI)
6), the three-stage paper feed unit (60) is attached to the copying machine main body (1)
It is detected whether the combination is complete or not. The motor (M4) drives the paper feeding system of the three-stage paper feeding unit (60). Paper size detection switches shown together (
S%J17) ~(SV40), (SV40) ~
(5W24), (SV40) ~ (SV28) are
upper, middle, and lower cassettes <62) respectively.

(63), <64) Detects the size of the paper stored in the paper. Also, one type of paper set switch (Sen30), (SV31), (Sen32), (Sen
33) and (SV40).

(SV35) has upper, middle, and lower cassettes (62
).

This is a switch for setting the type of paper stored in (63) and <64). Paper feed clutch <65),
(66).

(67) is one of the corresponding cassettes (62)
.

(63), (64), paper feed rollers (68), (69), corresponding to the selected cassette,
(70) is connected to the drive system to supply paper of a specified size to the copying machine main body (1).

[e. Automatic document feeder, FIGS. 1 to 13. The automatic document feeder (80) (hereinafter referred to as ADF) is designed to perform copying operations in conjunction with the main body of the copying machine (1). The document feeding section (81) includes a document feeding section (81), a document transport section (85), and a document discharging section (90>).
The originals placed on the original tray (82) are fed one by one from the top layer using the paper feed roller (83).When a W original is on the original tray (82), the original detection sensor (Se7)
), and the document size is detected by the document size detection sensor (
By monitoring the passage time at Se8), it is detected as described in detail below.

The document transport section (85) transports the document to a predetermined position on the document table glass (18) using a transport belt (86) and stops the document, and after the scanning by the optical system (11) is completed, the document is transported to a discharge section (
90) onto the document output tray (91), and
This document transport section (85) can be opened upward to expose the document table glass (18), and can be used in the same way as a normal document cover.

Additionally, in the embodiments shown in FIGS. 2 and 3, a document return unit (95) is attached. This unit (
95), when copying an original with images on both sides, flip the original after copying the front side and place it on the original platen glass (
18) A document detection sensor (Se9) is installed in the discharge section (90). Further, a switching claw (87) is installed at the rear end of the document transport section (85) to switch the document discharged from the document table glass (18) between the discharge section (90) and the return unit (95). .

[F, Sorter, Figures 2 and 3] First, as shown in Figure 2, the sorter (100) has a plurality of bins (sorting mode, grouping mode) for sorting and storing copy sheets (sorting mode, grouping mode). a delivery unit (101), which has a delivery roller pair (104) and is movable intermittently downward along the entrance side of each bin (101);
103), a sorting path (10
7), a pair of transport rollers (111), a pair of discharge rollers (
112), etc., and
A pair of rollers (114) that receives and takes the copy paper discharged from the pair of discharge rollers (44) of the copying machine main body (1), and a sorting path (1) installed immediately after the pair of rollers (114) to sort the copy paper.
07) and a switching claw (115) that divides the passage into a non-sort passage (110).

When the operation mode of the sorter (100) is set to non-sort mode, the copy sheets are guided to the non-sort path (110) by the switching claw (115), and are guided to the non-sort path (110) by the pair of ejection rollers (
112) to a non-sort tray (not shown) or a paper refeeding device (130) installed in place of this non-sort tray.
sent to. On the other hand, when set to sort mode or grouping mode, the copy paper is
At step 5), it is guided to the sorting path <107), that is, it is caught between the conveyor belt (108) and the tractor pull tape (109), and is conveyed to the sending unit <103).
By intermittently descending this unit (103), the delivery roller pair (104) sequentially distributes to each bin (101).

Also, inside the sorter (100) is a sensor (Se15) for detecting the copy paper fed into the sorter (<100).
, a sensor (Se16) for detecting copy paper conveyed through the sorting path (107), and a non-sorting path (110).
Sensor (Se17) to detect copy paper that can be conveyed completely
) is installed.

Figure 3 shows how the second sorter (100a) is connected to the bridge (12).
This second sorter (1
00a) has the same configuration as the first sorter (100), and the same members are indicated by the same reference numerals with "a" attached.
The bridge (120) has a passage (121) consisting of a pair of rollers and a guide plate, an inclined sheet discharge section (122), and a switching claw (123) that distributes copy sheets into the passage (121) and the sheet discharge section (122). It is composed of. In this case, the paper refeeding device (130) is installed on the exit side of the non-sort discharge roller pair (112a) of the second sorter (100a).

The copy paper is delivered to the ejection roller pair (11) of the first sorter (100).
2) through the passage (121) to the second sorter <100
The receiver in a) is conveyed to a pair of take-up rollers (114a).

[g. Paper refeeding device, Figures 4 to 9] The main paper refeeding device (130), as shown in FIG. (150) and copy paper path switching claw (160)
).

(165).

As shown in FIG. 5, the paper refeed cassette (150) has a substantially box shape and can be attached to and detached from the main body (131) by sliding from the front side. This paper refeed cassette (150) basically has the same structure as the paper feed force cera) (30), and as shown in FIG. 6, the bottom plate (151)
can swing up and down using the back plate (152) as a fulcrum, and after being pulled out from the main body (131), the paper feed port (20) or (25) of the copying machine main body (1) and the three-stage feed Paper feed port of paper unit (60) <62), (63), (64
), it is possible to refeed the stored copy paper. In addition, the paper refeed cassette (150) can slide freely on guide plates (132) and (133) provided on the main body (131), and the rear part can be positioned by contacting the side plate of the main body (131), and the front The side is a leg piece (153
) comes into contact with the protrusion (132a) of the guide plate (132), thereby positioning and preventing removal. Behind the guide plate <132) is a sloped surface (132b) and a high step (1
32c), and the paper refeed cassette (150) is indicated by the arrow (C
), it falls from the high step (132c) and becomes inclined. This is to prevent the back plate (152) from coming into contact with the copy paper edge pressing roller (134) and roller support plate (135) on the near side. Furthermore, there is a paper refeed cassette (15) on the back side of the main body (131).
The sensor (SelO) for detecting the attachment and detachment of 0) has been installed.

As shown in FIG. 4, the copy paper conveyance path includes a first switching claw (160), a copy paper refeeding force sensor) C1
50), a drive roller (171) and a driven roller (172), a second switching pawl (165), a drive roller (173) and a driven roller (1).
74), guide plate (175), reversing roller (176)
, a driven roller (177), and an arc-shaped guide plate (17g) along the reversing roller (176).

In addition, the lower surface of the paper ejection tray (145) <145a), (
145b) also has a function as a guide plate. The drive roller (171).

(173), the reversing roller (176) is connected to the main body (131)
) is rotatably driven in the clockwise direction by a motor (M6), and the copy paper edge pressing roller (134) is also rotatably driven in the clockwise direction by this motor (M6).

The switching claws (160) and (165) can be switched between the solid line position and the dashed-dotted line position using solenoids <162) and (167), which will be explained below. As shown in FIG. 8 (A), the first switching claw (160) is located at the lower stage, and the copy paper that has been completely ejected from the pair of ejection rollers (44) of the copying machine main body (1) is moved to the switching claw (160). In the case of double-sided copy mode in which the paper is guided by the upper surface of the paper output tray (160) and sent onto the output tray (145), the first switching claw (160) is moved to the upper stage as shown in FIG. The second switching claw (165) is located at the lower stage. Therefore, the copy paper is attached to the lower surface of the first switching claw (160) and the guide plate (17 (1)
) and is guided by a roller (171).

(172) and the rollers (173) and <174), the upper surface of the second switching claw (165), the guide plate (175), and the lower surface of the paper output tray (145) (145a) .

(145b) and the guide plate (17
8), the copy surface is reversed downward (face down) by a reversing roller (176) and a driven roller (177), and fed into the refeeding cassette (150) from the right side.

In the composite copy mode, as shown in FIG. 8 (C), the switching claws (160) and (165) are switched to the upper stage, and the copy paper is placed between the bottom surface of the first switching claw <160) and the guide. It is guided by a plate (170) and a roller (171).
).

(172), and the second switching claw <
165) and is fed from the left into the paper refeed cassette (150) with the copy side facing upward (face up).

Therefore, copy paper stacked face down and face up in the paper refeed cassette (150) can be removed from the copy machine main body (1) by pulling out the paper refeed cassette (150) from the main body (131). Paper feed slot (20) or (25)
and the paper feed port (62) of the three-stage paper feed unit (60), (
63).

By attaching it to (64), it is possible to refeed the paper.
A double-sided copy or composite copy is made.

By the way, the copy paper discharged from the copying machine main body (1) has the copy side facing upward, and the operator cannot visually check the copy paper when it is conveyed past the first switching claw (160). can. In particular, even in the double-sided copy mode, since the paper ejection tray (145) is transparent, the copy paper being conveyed on the guide plate (175) can be visually observed.

On the other hand, a copy paper detection sensor (Sell) having an actuator protruding from the guide plate (170) is installed in the conveyance path.
and a paper jam detection sensor (Se1) whose actuator protrudes from the guide plate (178) toward the reversing roller (176).
2) and a sensor (Se13) for detecting copy paper discharged onto the paper discharge tray 45) are installed. Sensor (Se
ll) is in any paper feeding mode, the main paper refeeding device (
130), detects the fully ejected copy paper, operates a counter to count the number of ejected sheets, operates the motor (M6) when the leading edge of the copy paper is detected, and starts a timer when the trailing edge of the copy paper is detected. After a certain period of time has elapsed after operation, that is,
The operation of the motor (M6) is stopped after the time has elapsed for the copy paper to be completely stored in the paper refeeding unit (150). The sensor (Sε12) is for detecting paper jams such as copy paper being wrapped around the reversing roller (176).

Further, a mylar plate (159) is installed on the main body (131) adjacent to the reversing roller (176). This mylar plate (159) is used to prevent the trailing edge of the copy paper sent from the reversing roller (176) to the paper refeed cassette (150) from heating and curling upward during the double-sided copy mode. be. Incidentally, upward curling of the leading edge of the copy paper due to heat curling is prevented by rotating the presser roller (134) in the clockwise direction.

Next, the operation of the switching pawls (160), (165) and the on/off control of the solenoids (162), (167) will be explained with reference to FIG.

The switching claws (160) and (165) each have a support shaft (
161).

Rotatably supported at (166), link (163)
.

(16B) via solenoid (162), (167
) has been successfully connected.

Solenoid (162) in paper output tray mode.

(167) is in the off state, the switching claw (160),
The solenoid (162) is turned on in the 6-duplex copy mode, which is located in the lower row, and the solenoid (162) is turned on in the 0 composite copy mode, in which the first switching claw (160) is located in the upper row. (167) is also turned on, and the second switching claw (165) is also located at the upper stage.

[h, Special copy mode, Figures 10 to 12] In the above configuration, the copying machine main body (1) operates in addition to the normal copy mode, the double-sided lobby mode 2 composite copy mode, and other special copy modes. It is possible to copy in binding margin copy mode, analogue copy mode, and book copy mode.

(h-1, binding margin copy mode) In the binding margin copy mode, as shown in Figure 10,
A binding margin (e) of a specified width can be provided on the right side of the copy paper. If there is no margin in the manuscript, providing a binding margin will make it easier to bind the copies.

In this embodiment, two modes are provided. In the first mode, the image is simply moved by the amount of binding (see (A) in FIG. 10). In this mode, if the protruding portion of the document (d) is not a margin, image loss occurs. In the second mode, in order to eliminate image loss, the reduction rate [(paper length - binding allowance)/paper length] is calculated from the width of the copy paper (paper length) and the binding allowance, and the reduction rate is automatically calculated. Determine the copy magnification.

(h~2. Anamo copy mode) In the Anamo copy mode, as shown in Figure 11,
By keeping the copy width direction (depending on the lens position) the same and changing only the scanning speed of the optical system (11),
Control is performed to shorten or lengthen the copied image in the scanning direction (b). In addition, the analog magnification (aspect ratio) is 95
If it is not within the range of ~105%, the resolution will drop, so if a bias rate outside of this range is specified, a warning will be given to the operator on the display section (220), which will be described below.

In order to obtain stable copies at any analog polarization magnification, a special lens must be inserted into the exposure optical path.

(h-3, book copy mode) In the book copy mode, as shown in Figure 12, when opening a book and copying, both pages of the spread (side A and side B) can be printed using the print key once. Copy side B and side A in this order.

[i. Operation panel, FIGS. 13 to 1 (i-1. Copying machine main body operation panel) The copying machine main body operation panel is provided with keys, a display section, etc. shown in FIG. 13.

<180) is a print key for starting the copy operation, and (181) to (190) are numeric keys for setting the number of copies, etc. (191) is an interrupt key for interrupt copying. (192) is a clear/stop key that functions as a stop key to stop multi-copying and a clear key to clear set numbers; (193) is an automatic exposure selection/cancellation key; (19)
4) is the exposure amount down key during manual exposure, (19
5) is the exposure amount up key during manual exposure, (19
6) is the paper feed selection key. (197) ~ (200)
is the copy magnification select key for normal magnification, fixed reduction 2 steps, and fixed enlargement 1 step. (201) is the magnification up key that increases the copy magnification in steps. (202) is the magnification grand key that decreases the copy magnification in steps. , (2
03) is the total check key to call up the total count and one sheet count display, (204) is the all reset key to initialize the copy mode, (205) is the Anamo copy mode select key +, (206) is the calculation mode Select key, (207) is a zoom magnification input key, (208) to (211) are zoom magnification select keys for selecting one of the planned zoom magnifications selectively set in advance, (212) is a binding margin FP mode Select key. <213) is the book copy mode select key.

On the other hand, the display section (220) using a fluorescent display tube displays the display shown in FIG.

(221) is a 3-digit display segment for displaying the number of copies, etc., (222) is a display indicating that the numerical value on display segment (221) indicates the Anamo ratio percentage, (223) is a display segment (221) ) An indication that the above value indicates the binding substitution in me units.
(224) is a service man call pictogram. (225)
is a pictogram indicating that a paper jam has occurred. (226) is a pictogram that can be used to open the door and to set the three-stage paper feed unit black 0) incorrectly. (227) is a weight display for temperature control, lens movement, etc. (228) is displayed during interrupt copying. (229
) is a book copy warning display. (230) is a warning display that is performed when the anamorphic bias magnification (ratio of vertical and horizontal magnification) exceeds the setting range, and (231) is a paper empty display. (232) is a manual copy display. (233) indicates the exposure mode (auto exposure or manual). (234) is an exposure amount step display.

(235) indicates that the waste toner is full. (236) indicates toner empty. (237) is a color toner display.

(238) is the copy magnification display. <239) indicates calculation mode. <240) indicates paper size. (241)
(51).

Display of one type of paper according to (52), <53).

As shown in FIG. 13, the operation panel further includes the following display LEDs.

(243) is the monitor display section. (244) is the external paper feed paper jam indicator LED. (245) is paper feeding error display LE
D.

(246) indicates separation/unloading error L E D. <24
7) is the sorter paper jam indicator L E D. (248) is the ADF paper jam indicator L E D. (250) is a top paper feed low selection display LED, and (251) is a bottom paper feed low selection display LED.

(252) to (255) are magnification key selection display LEDs
.

(256) is Anamorph Bee mode select display L E
D * (257') is the calculation mode selection display L E
D. (258) is the zoom input selection display L
E.D. <259) to (262) are zoom magnification key selection display LEDs.

(263) is a binding margin copy mode selection display LED.

(264) is 111C generation and automatic reduction mode selection display L E D. (265) is a book copy mode selection display LED.

(i-2. Sorter operation panel) As shown in Fig. 15, the sorter operation panel has an operation mode select key (270), a sorting mode display LED (271), and a grouping mode display LED.
(272), non-sort mode display LED (273)
) is provided. Each time the select key (270) is operated, each mode is sequentially switched, and the corresponding display LEDs (271) to (273) are lit.

(i-3. Paper refeeding operation panel) As shown in Figure 16, the paper refeeding device operation panel includes a duplex copy mode select key (275) and its display L.
E D (276), a composite copy mode select key (277), and its display L E D <278).

(i-4, Copy paper selection mode operation panel) The copy paper selection mode operation panel includes a paper mode select key (280) and this select key (2
The automatic paper selection mode display LED (281), the automatic magnification selection mode display LED (282), the manual mode display LED (283), and the odd-number original input key are switched sequentially each time 80) is operated once. 284) and its display LED (285) have been installed.

[j, Control circuit, Figures 18 to 22 (j-1, Control circuit of the copying machine body) Figure 18 shows the input/output configuration of the microprocessor (CPUI) that controls the copying machine body (1) shows.

(IC2) to (IC8) are input/output expansion integrated circuits.

(IC2) to (Ice> are used as input ICs, and are connected to (CPUI) via a data line via a decoder (300).The input terminals have various keys.

Display LED etc. are connected. (IC6) ~ (IC8
) is used as an output IC, the mount roll port is connected to (CPU1) via the decoder (301), and I! It's broken. In addition to the various parts shown in Fig. 18, the output terminal includes a fluorescent display tube display (220) and an LE
The random access memory 1 (RAM) is connected to the D matrix (303) and controlled by the (CPUI) via the decoder (302).
1), and the memory is backed up by a battery. The bus (304) is connected to other (CPU2), (CPU
3), (CPU4).

This is a communication line for connecting with (CPU 5). In addition, (CPUI) uses the fully selected value out of the 9-step exposure values when manual exposure is selected for the dimming circuit <305), and the value that is the center of the automatic exposure when selecting automatic exposure, as data. Send.

(j-2, three-stage paper feeding unit control circuit) Figure 19 shows:
The input/output configuration of the input/output expansion integrated circuit (ICI') that controls the three-stage paper feeding unit (60) is shown.

The input/output ports have upper, middle, and lower paper feed clutches (68).

(69) and (70) are fully connected, and various sensors and the like are further connected via input/output expansion (IC10) and (ICI1). In fact, this (ICI) is disconnected from (CPtll) via the bus (306).

(j-3, Optical system control circuit) Figure 20 shows the input/output configuration of the microprocessor (CPU2) that controls the optical system (11). <CPU2)
The input/output port of is connected to a scan motor control circuit (310) that controls a scan motor (H3) and a projection lens control circuit (311) that controls a motor (M2) that can move the projection lens (16). .

Also, the fixed position switch (SIJIO) of the optical system (11)
A signal from a switch (SWII) that generates a rotation timing signal for the timing roller pair (40) is also input.

Furthermore, (CPU2)
UI).

(j-4, A D F control circuit) Figure 21 shows the input/output configuration of the microprocessor (CPU3) that controls the A D F (80).
U3) outputs signals to the drive motor (M8) and document feed motor (M9) of the transport bell (86), and receives signals from the document detection sensor (Se7) and document size detection sensor (Se8). . Furthermore, (CPU3) is
304) to communicate with (CPUI).

(j-5, sorter control circuit) No. 22150 shows the input/output configuration of a microprocessor (CPU4) that controls the sorter (100), (100a).This (CPU4) includes an inlet copy paper detection sensor. (Se15).

(Se15a), sorting path copy paper detection sensor (Se15a), sorting path copy paper detection sensor (Se15a)
16).

(Se16a), non-sort path copy paper detection sensor (
Se17), (Se17a), sorter main motor (
Mll).

(Mlla), feeding unit drive motor (M12)
.

(M12a), sort/non-sort switching claw (115
) solenoid (116), (116a), solenoid (12) of switching claw (123) of bridge (120)
4) etc. are read directly. Furthermore, (CPU4) communicates with (CPU1) via bus (304>).

(j-6, control circuit of paper refeeding device) Figure 23 shows the input/output configuration of the microprocessor (CPUUS) that controls the paper refeeding device (130).
PUS) includes a detection sensor (SelO) for the paper refeed cassette (150), a copy paper detection sensor (Sall), a paper jam detection sensor (Se12), a double-sided copy mode 1 composite copy mode select key (275), and a <277 ), display L E D (276).

(278), motor (M6), switching claw (160)
, (165) solenoid (162), (167)
etc. are close to each other. Furthermore, (CPUS) is bus (3
25) to communicate with (CPU1).

[k, Control procedure, FIGS. 24 to 83] (k-1, Control of copying machine main body) FIG. 24 shows the main routine (CPUI) for controlling the copying machine main body (1).

When the (CPUI) is reset and the program starts, the first step (Sl) is to clear the (RAM), initialize various registers, and make initial settings to put each device into the initial mode. In step (S2), an internal timer of the (CPUI) is started.This internal timer determines the time required for one routine of this main routine, and its value is set in advance in the step (S2).
You can complete the setting with l).

Next, each subroutine shown in steps (S3) to (513) is sequentially called, and when the processing of all subroutines is completed, communication with other (CPU2) etc. is performed in step (514), and step (515) After waiting for the internal timer to end, the process returns to step (S2). The time length of one routine is used to count the various timers that appear in each subroutine.

FIG. 25 shows a subroutine for processing using the manual feed tray, which is executed in step (S3) of the main routine.

First, in step (520), it is determined whether the manual feed tray detection switch (SW9) is on-edge or not. If it is on-edge, that is, when the manual feed tray (36) is opened,
In step (521'), the manual copy display LED (23
2) is turned on, and in step (522), display "0" in the copy number display segment (221).6Next, in step (S23), the binding margin + automatic reduction mode selection display L
It is determined whether E D (264) is on or not, and if it is on, a subroutine for processing binding margin introduction is called in step (S24). In other words, "binding margin + automatic reduction mode" is a mode that automatically calculates the reduction rate from the length of the paper and the amount of binding margin, and in the case of manual copying, what size (length) of paper is inserted? Since I don't know, I automatically cancel the binding margin + automatic reduction mode.

Next, in step (525), it is determined whether the book copy mode selection display LED <265) is on, that is, whether the book copy mode is on, and if it is on, it is determined that the manual copy size is still unknown. Therefore, I can't scan the book, so I followed step (5).
At step 26), the display LED is turned off, and at step (527), the book A side signal (265) and the book B side signal are reset to 10'', and the book copy mode is automatically canceled.

Next, in step (528), when it is detected that the manual feed tray detection switch (SW9) is on, that is, the manual feed tray (36) is closed, the manual feed copy display LED (232) is turned off. At the same time, in step (530), 4 is displayed in the copy number display segment (221).
Displays 1'' and returns.

FIG. 26 shows a subroutine for cassette insertion processing executed in step (s4) of the main routine.

First, in step (540) the display L E D (264
) is on, that is, “binding margin + automatic reduction mode”
When it is determined that the is selected, step (54
In step 1), it is determined whether the upper cassette is selected. If the upper cassette is selected, step (54)
After confirming that the upper cassette has been pulled out in step 2), if the upper cassette is not selected, proceed to step (543).
After confirming that the lower cassette has been pulled out, proceed to step (54).
4) returns the copy magnification to the original magnification (before automatic reduction), displays the magnification in step (545), and transmits the magnification to (CPU2) in step (S'46>). The copy magnification, which was determined by the vapor length and binding margin of the selected cassette before the selected cassette was pulled out, is automatically restored to the original magnification because it becomes impossible to calculate when the cassette is pulled out.

Next, when the new insertion of the upper or lower cassette is confirmed in steps (547) and (549), the paper feed slot (20) and (
25) is automatically selected and the upper paper selection display L
E D (250) or bottom feed selection display L E D
<251) on and off. At the same time, step (5
Step 51) calls a subroutine that automatically calculates the reduction magnification (a magnification that does not cause image loss based on the paper length and binding position), and then calls the subroutine that processes the automatic reduction magnification calculation in step (552).
The magnification calculated in step (553) is sent to (CF'U2) and displayed.

FIG. 27 shows a subroutine for processing a copy operation that can be executed in step (S5) of the main routine.

First, if the book copy mode selection display LED (265) is on in step <560>, that is,
It can be determined that the book copy mode is selected,
When it is determined in step (561') that the document detection sensor (Se7) of the ADF (80) is on-edge, that is, when it is confirmed that the document is inserted into the document tray (82), step (562) is performed. The above display L E D (2
65), and in step (563), reset the book A side signal and the book B side signal to "0." and cancel the book copy mode. That is, A D F (80)
If you use this, the book scan control becomes meaningless, so even if book copy mode is selected, it will be automatically canceled.

Next, in step (564), it is confirmed that the manual feed tray detection switch (SW9) is on, that is, that manual feed copying is not selected, and in step <565), it is confirmed that the print key (180) is on edge. If the determination is successful, it is determined in step (566) whether or not A D F (80) is being used. And ADF (80)
If it is not used completely, use Ste.7bu (567)
If the copy start flag is set to ``rl'' in step (56B), the copy start flag is set to ``rl''.
7) is on, that is, a document is placed on the document tray (82), and then proceed to step (56).
9) Set the ADF start signal to "1."

On the other hand, if it is determined in step <564) that the manual paper tray detection switch (SW9) is off and manual copying is selected, then in step (570) it is confirmed that the manual paper detection sensor (Se2) is on-edge, and the Step (566) and the following are executed. Further, if NO in both steps (565) and (570),
In step (571), it is determined whether the ADF (80) is being used. If the ADF (80) is used, in step (S72) it is confirmed that the original position signal is on-edge, and in step (573) the copy start flag is set to 11''.

If the document normal position signal is not on edge in step (572), it is determined in step (574) whether the document normal position signal is on, and if it is on, step (575) is performed.
) is the second copy using the paper refeeding device (130), i.e., the first copy using the paper refeeding device (130).
After the first copy is completed, the paper is re-loaded into the paper cassette (150).
It is determined whether the stored copy paper is a double-sided copy or a composite copy.

If it is not the second copy, in step (S76) it is determined whether or not it is the first copy using the paper refeeding device (130), that is, the first copy from now on using the paper refeeding device (130). Determine whether or not to do so. If it is the first copy, the paper refeed cassette detection sensor (5el) is checked in step (577).
After confirming that the paper refeeding cassette (150) is installed in the paper refeeding device main body (131) by turning on O), the copy start flag is set to "1" in step (579). Furthermore, if it is determined in step (576) that it is not the first copy, then in step (57B> the on-edge of the original position signal is confirmed, and in step (579) the copy start flag is set to rl. If it is determined in step (575) that it is the second hubby, in step (580) the paper refeed cassette detection sensor (SelO
) is on or not, and if it is off, the paper refeed cassette (150) has been completely removed from the paper refeed device main body (131) and set in the paper feed section of the copying machine main body (1). Then, in step (579), the copy start flag is set to 11''.

Next, in step (581), the copy start flag is set to "1.
If it is '1', it is determined in step (582) whether or not it is the first copy using the paper refeeding device <130), and if it is the first copy, it is determined in step (582). 583)
The paper size selected in the re-feed cassette (1
Step (584)
) to determine whether the number of copies is 50 or less.

If the paper size is inappropriate or the number of copies is 50 or more, the copy start flag is reset to "O" in step (585).

In other words, if the paper size cannot be accommodated in the re-feed cassette (150), or if the number of multi-copy sheets cannot be accommodated in the re-feed cassette (150),
150), the copy start flag is reset to "0" and the copy operation is canceled.

Next, in step (586), the copy start flag is set to rl,
Determine whether or not, if rl, step 7bu (5g?)
Turn on the main motor (Ml), developing motor, etc., turn on the electrostatic charger (6), transfer charger (8), etc.
The copy start flag is reset to "r6" and timers (τA) and (TB) are set. Then, in steps (588), (590), and (592) it is determined which paper feed section is selected, and in step (589)
), (591).

At (593), turn on the paper feed roller clutch of the selected paper feed unit.

Next, when the end timing of the timer (T^) is confirmed in step (594), step (595)
The paper feed roller clutch of the selected paper feed section is turned off. Further, when the judgment end timing of the timer (TB) is confirmed in step (596), step (597)
) to determine whether or not the binding offset production mode is selected. If the selection is complete, in step (59B), the paper is fed out in advance by the amount of binding margin, so the timer (TE) is set by an amount commensurate with the conveyance time of the amount of binding margin, and in step (599), the timing roller (40) is set. is turned on, and the scan signal of the optical system (11) is set to "1" in step (5100). When the judgment end timing of the timer (E) is confirmed in step (5101), the timing roller (40) is turned off in step (5102). This means that the paper has been completely fed out from the timing roller (40) by the amount of the binding margin.

Next, in step (5103) the timing signal is set to "1".
Determine whether or not, and if it is '1', step (5104)
Turn on the two glues on the timing roller (40) and set the timer (TC). Step (5105
), when the judgment end timing of this timer (TC) is confirmed, the charging is started in step (5106) ~(
4) etc. and turn off the scan signal r6. reset to
Also, the clutch of the timing roller (40) is turned off.

Next, in step (5110), it is determined whether the return signal of the optical system (11) is l''IJ or not, and if it is '1'', the paper detection sensor (5a2) of the manual paper feed section is detected in step (Sill). Determine whether it is on or not. Sensor (Se2
) is on, the next paper is already in the manual feed tray (
36) It is determined that the
Step 12) creates a pseudo on-edge of the sensor (5e2) and executes the next manual copy.

If it is determined in step (5111) that the senna (5e2) is not turned on, it is determined in step (5113) whether or not multifunction copying has been completed, and if it has not been completed, the copy start flag is set in step (5114). rl,
Set to . When the multifunction is completed, step (5)
115) determines whether the paper jam detection sensor (5e12) in the paper refeed cassette (150) is on or not, that is, whether a paper jam has occurred in the paper refeed cassette (150). If this has occurred, the number of jammed sheets is set as a new number of copies (in this embodiment, it is one sheet) in step (5116), and the paper refeeding device (130)
If a paper jam occurs in the output tray (145), as described later, the copy paper should be moved to the output tray (145) without stopping the copying operation.
) drain on top. Then, in step (5117), the additional copy flag is set to '1', and in step <5
114) sets the copy start flag to rl.

On the other hand, if the paper jam does not occur, step (5115)
If it is determined as No, it is determined in step (511B) whether or not the additional copy flag is ``1''. , and in step (5119) the flag is set to r□,
At the same time, in step (5120), the number of copies is returned to the original number of copies.

Next, in step (5121) it is determined whether the book copy mode selection display LED (265) is on or not, and if it is on, in step (5122) it is determined whether the B side copy signal is "1. , the first book copy 3
It is determined whether or not the side copy has been completed, and if the third side copy has not been completed, the A side copy signal is set to 10 in step (5123).
'' and sets the B-side copy signal to "1" in step (5124) to prepare to perform 3-side copying. If it is determined in step <5122) that the 8th-side copy is complete, step <5125), the B-side copy signal is reset to rO'', and step (51
In step 26), the A-side copy signal is set to 1"1" to prepare to execute the A-side copy, and then in step 51
In step 27), it is determined whether or not it is the second copy using the paper refeeding device (130), and if it is not the second copy, the copy start flag is set to "1" in step (5128) and the copy is made. Start operation. However, if it is the second copy, the paper refeed cassette detection sensor (Se
1O) is off, the paper refeed cassette (150
) is set in the paper feed section of the copying machine body (1), and in step (3128) the copy start flag is set to "1".
” to start the copy operation. That is, if it is normal copy mode [NO in step (5127)]
, the copying operation starts immediately, but the paper refeeding device (13
0), even if the first copy is completed, [YES in step (5127)]
], until the operator removes the paper refeeding cassette (150) from the paper refeeding device main body (131) and sets it in the paper feeding section of the copying machine main body (1) [YES in step (S129)].
], prohibits the following copy operations.

Next, in step (5130), the fixed position switch <5v1
o) is turned on and it is determined that the optical system (11) has returned, the developing motor, charger (4>, etc.) are turned off in step (5131), and a timer (ID) is set. When the judgment end timing of this timer (TD) is confirmed in (5132), the main motor (Ml) is turned off in step (5133),
In step (5134), the results of the processing up to now are output.

FIG. 28 shows a subroutine for processing automatic paper selection that can be executed in step (s6) of the main routine.

First, in step (5140), the A D F (80) is controlled (CPU 3) to temporarily store the document size data that has been detected and fed into the A register.
In step (5141), it is determined whether or not the binding allowance number tens automatic reduction mode selection display LED (264) is on. If it is off, the A register is multiplied by the copy magnification in step (5142), that is, the vertical length and width of the document stored in the A register are multiplied by the magnification. If it is on, this magnification is the copy magnification calculated based on the paper length and binding arrangement selected at that time.
In step (5143), the original copy magnification [copy magnification ÷
(selected paper length - binding substitution) or (selected paper length)], and then in step (5144) the value is multiplied into the A register.

Next, in step (5145), it is confirmed that the paper refeeding device (130) is used for the first set, and in step (5146), the size of the paper refeeding cassette (150) is calculated as described above. It is determined whether the paper size matches the paper size stored in the A register. If the size does not match, the process immediately moves to step (5157), sets the size non-conformity flag to "1", and prepares for a warning. ), it is determined in step (5147) whether or not the paper refeed cassette detection sensor (SelO) is on.If it is off, the paper refeed cassette (150 ) is the main body of the paper refeeding device (1
31) and set in the paper feed section of the copying machine main body (1), and in step (5148), the size nonconformity flag is reset to 70'', and in step (5148), the size mismatch flag is reset to 70''.
5149), the paper feed port in which the paper refeed cassette (150) is set is selected.

On the other hand, in the step (5147), the sensor (SelO)
is on and the paper refeed cassette (150) is inserted into the paper refeed device main body (
131), the paper feed port is selected based on the value of the A register. That is,
If it is determined in step (5150) that the A register is equal to the paper size of the upper paper feed force set, step (5150)
At step 151), the size mismatch flag is reset to r□, and at step (5152), the upper paper feed port (20) is selected. If it is determined in step (5153) that the A register is equal to the paper size of the lower paper feed cassette,
In step (5154), the size nonconformity flag is reset to "r□", and in step (5155), the lower paper feed port (25) is selected.

Next, in step (5156), the three-stage paper feed unit (60
) is on or not. If it is off, the three-stage paper feeding unit (60) has not been fully connected, so in step (5157) the size mismatch flag is set to rl, and the process returns.

If it is turned on, the three-stage paper feed unit (60) is connected, so if it is determined in step (5158) that the A register is equal to the paper size of the upper stage of the three-stage paper feed unit, then in step (5159) Set the size non-conformance flag to "
0'' and selects the upper stage of the three-stage paper feeding unit in step (5160).

If it is determined in step (5161) that the A register is equal to the paper size in the middle stage of the three-tier paper feed unit, the size mismatch flag is reset to "rO" in step (5162), and in step (5163) the paper size in the three-tier paper feed unit is Select the middle row. If it is determined in step (5164) that the A register is equal to the paper size in the lower stage of the three-stage paper feeding unit, the size mismatch flag is reset to "0" in step (5165), and the size mismatch flag is reset to "0" in step (5165).
66) selects the lower stage of the three-stage paper feeding unit.

FIG. 29 shows a subroutine for processing automatic magnification selection that is executed in step (S7) of the main routine.

First, in step (5170), the vertical dimension of the document size data detected and transmitted by the CPU 3 that controls the ADF (80) is stored in the A register, and in step (5171), the horizontal dimension is stored in the B register. Store. Next, in step (5172), it is determined whether binding margin creation + automatic reduction mode display LED (264) is on, and if it is off, in step (5173), paper vertical dimension ÷ A register (original length If 0 display L E D (264) is turned on, that is, if "binding margin + automatic reduction mode" is selected, the value of paper vertical dimension is stored in step (5174). The value obtained by subtracting the binding substitution is stored in the D register as a simulated paper vertical dimension. In step (5175), the vertical magnification is calculated based on the above data and stored in the A register. As a result, the magnification factor is automatically calculated taking binding substitution into consideration. Similarly, in step (5176), the horizontal magnification is calculated and stored in the B register.

Next, in step (5177) the values of the A register and B register are compared, and in steps (5178) and (5179)
The smaller value is stored in the C register as the copy magnification.

The copy magnification obtained in this way is determined in step (5180).
If it is determined that the copying machine is out of capability (outside the possible magnification range), the magnification incompatibility flag is set to 1 in step (5181).
1”. If it is within the ability, step (5182
) to reset the magnification mismatch flag to "0" and
In step (5183), the optical system (11) is controlled (C
Send the value of the C register to PU2). With this, when the binding margin reduction floppy mode and the automatic magnification selection mode are executed in combination, excessive reduction is prevented.

FIG. 30 shows a key processing subroutine executed in step (S8) of the main routine.

In this subroutine, step (5190) processes the magnification up key (201), step (5191
) to process the magnification down key (202), step (51
92), interrupt key (191) processing, step (5)
193) to select the binding margin FP mode select key (212)
processing, the processing of the analog copy mode select key (205) in step (5194), the processing of the paper feed slot selection key (196) in step (5195), the processing of the paper feed slot selection key (196) in step (51)
96) processes the Book FP mode select key (213), and in step (5197) processes the automatic exposure key (1).
93) are executed in sequence.

FIG. 31 shows a subroutine for processing the magnification up key (201) that can be executed in step (5190).

This magnification up key (201) is normally used to increase the copying magnification, but the Anamorph mode select key (201)
If you turn on the magnification up key (201) while turning on the key (205), the up key will be in 1% increments of the Anamo rate, and you can also press the up key (201) while turning on the binding margin copy mode select key (212). ) is turned on, it becomes an up key for every 5mm of the binding margin.

That is, in step (5200) the magnification up key (201
) is confirmed to be on-edge, step (5201)
It is determined whether the analog copy mode select key (205) is on. If it is on, that is, when you turn on the magnification up key (201) while turning on the analog copy mode select key (205), step (S
20'7), add 1/100 to the Anamo rate memory.

As a result, in step (5208), the anamo rate memory is 1.
．． If it is determined that the number exceeds 42, step (5209)
Correct the anamorphic rate memory to 1.42 in step (52
13) sets the change flag to rl.

Further, if it is determined that the step (5202)-eli floppy mode select key (212) is on,
That is, when the magnification up key (201) is turned on while the binding margin copy mode select key (212) is turned on, 5 mm is added to the binding margin memory in step (5210). As a result, if it is determined in step (5211) that the binding margin memory exceeds 15 mm, step (5212)
) to correct the binding margin memory to 15 mm, and step (52
13) sets the change flag to "rl".

On the other hand, Anamo copy mode select key (205).

If both the binding margin flexible mode select key (212) is off, the magnification key display L is displayed in step (5203).
E D (252)~(255), (259)~
(262) is turned off.

That is, since the copy magnification in this case is different from the magnification displayed by each magnification key display LED, the magnification key display LED is turned off. Then, in step (5204), the magnification is set to 1/10.
Add 00. As a result, if it is determined in step (5205) that the magnification exceeds 1.420, step (5205)
06) to correct the magnification to 1.420.

FIG. 32 shows a subroutine for processing the magnification down key (202) executed in step (5191).

This magnification down key (202) is normally used to decrease the copy magnification, but the Anamo copy mode select key (202)
If you turn on the magnification down key (202) while turning on 205), it becomes a down key for every 1% of the anamo rate.
Further, when the magnification down key (202) is turned on while the binding margin copy mode select key (212) is turned on, the down key is set for every 5 mm of the binding margin amount.

That is, in step (5220), the magnification down key (202
) is confirmed to be on-edge, step (5221)
It is determined whether the analog copy mode select key (205) is on. If it is on, that is, when you turn on the magnification down key (202) while turning on the analog copy mode select key (205), step (5)
227), subtract 1/100 from the anamorphic rate memory.

As a result, in step (5228) the anamo rate memory is 0.
．． If it is determined that the value is smaller than 64, step (5) is performed.
In step 229), the anamorphic rate memory is corrected to 0.64, and in step 5233, the change flag is set to 11''.

In addition, if it is determined in step (5222) that the binding margin copy mode selection key (212) is on, that is, the binding margin copy mode selection key (212) is turned on while the magnification down key (202) is turned on. If so, the binding margin memory is subtracted by 5 mm in step (5230).

As a result, the binding margin memory is 5 in step (5231').
If it is determined that the size is smaller than mm, step (52
In step 32), correct the binding margin memory to 5mm, and in step (5)
233) sets the change flag to "1.

On the other hand, Anamo copy mode select key (205).

If the binding margin copy mode select key (212) is both off, the magnification key display L is displayed in step (5233).
E D (252)~(255), (259)~
(262) is turned off.

That is, since the copying magnification in this case is different from the magnification indicated by the magnification key display LED, the magnification key is displayed and the ED is turned off. Then, in step (5224), the magnification is set to 1/100.
Subtract 0. As a result, if it is determined in step (5225) that the magnification is smaller than 0.640, the magnification is corrected to 0.640 in step (5226).

FIG. 33 shows a subroutine for processing the interrupt key (191) executed in step (5192).

First, in step (5240) press the interrupt key (191)
When on-edge is confirmed, it is determined in step (5241) whether or not the interrupt copying in progress display (228) is off. If it is off, the corresponding display (22
8) and store the copy mode (number of copies, double magnification, etc.) in (RAM). And step (52
43) and the Anamo copy mode selection display LED (25
When it is determined that 6) is on, that is, the "anamo copy mode" has been selected, the anamo interrupt flag is set to rl in step (5244). Next, the binding copy mode is selected in step <5245). Display L
When it is determined that E D (263) is on, that is, "binding margin creation mode" is selected, step (
5246) sets the binding margin interrupt flag to "1". If it is determined in step (5247) that the binding margin creation + automatic reduction mode selection display LED (264) is on, that is, ``binding margin + automatic reduction mode'' is selected, then in step (5248) Set the binding foreshadowing small interrupt flag to I″1″.

On the other hand, if the determination in step (5241) is No, that is,
If the interrupt key (191) is turned on while the interrupt copying display (22B) is on, this
Since the operator has instructed to cancel the interrupt, the interrupt copying display (22) is displayed at step (5249).
B) and restore the stored copy mode.

Also, if it is determined in step (5250) that the Anamo interrupt plug is 1"1", before entering the interrupt, "
Since the machine was in "Anamo copy mode", we need to return the machine to "1 Anamo copy mode", so in step <5251) we set the Anamo interrupt flag to "0".
and set the change flag to I in step (5252).
It is set to "1" and the subroutine for Anamo introduction processing is called in step (5253). And step (
In step (5254), the number of copies that can be displayed in the display segment (221) is stored in memory, and then in step (52
55) displays the value of the Anamo rate memory in the segment (221
), and in step (S256) 4%” is displayed (22
2) Turn on.

Similarly, if it is determined that the binding margin flag is "1 degree" in step (5257), the binding margin flag is reset to "10" in step (5258), and the change flag is set to "1" in step (5259). and step (5260)
Call the binding margin introduction processing subroutine. Then, in step (5261), the number of copies displayed in the display segment (221) is stored in the memory, and in step (5262), the value of the binding substitution memory is displayed in the display segment (221), and in step (5263) ) in “m”
m” display (223) is turned on.

Also, in step (5264), the binding margin reduction flag is set to “1”.
．． If it is determined that the binding margin reduction flag is 10'' in step (S265), and step <526
In step 6), set the change flag to 11'', and in step (52
67) calls the subroutine for binding margin reduction introduction processing, and the following steps (5261) and (5262) are performed.

(5263) is executed.

Next, in step (5268), press the interrupt key (191)
When the off-edge has been confirmed, it is determined in step (5269) whether the change flag is 11'', and if it is 1, the change flag is reset to I''0'' in step (5270), and step (5271) is determined. ) to display segments (
The value of the number of copies memory is restored in step 221), and the displays (222) and (223) are turned off in step (5272). In other words, if the machine is not in normal mode before entering interrupt mode (if "Anamo copy mode", "binding margin creation mode", "binding margin + automatic reduction mode", etc. are selected), interrupt When canceling, the display segment (
221), the respective analog ratios and binding substitutions are displayed.

FIG. 34 shows a subroutine for processing the binding margin copy mode selection key (212) executed in step (5193). Here, when the manual feed tray (36) is closed, the binding margin copy mode selection key key (2
12) By turning on, "Normal mode" → "Binding margin creation mode" - "Binding margin + automatic reduction mode" - 1 "Normal mode"
However, when the manual feed tray (36>) is open, the rotation is performed in "normal mode" - "binding margin creation mode" - "normal mode".

First, when it is confirmed in step (5280) that the binding margin copy mode selection key (212) is on, in step (5281) the binding margin copy mode selection display L
When it is determined that both E D (263) and the binding allowance number automatic reduction mode selection display L E D (264) are off, that is, the normal mode in which no binding margin is created has been selected, the "binding" mode is selected in step <5282). In order to execute the "substitute creation mode", the subroutine for the binding margin introduction process is called, and the change flag is set to "1°" in step (5283).

Next, when it is confirmed in step (5284) that the binding margin floppy mode select key (212) is off-edge, it is determined in step (5285) whether the change flag is rl. If the change flag is "1", it means that the binding margin creation mode is selected at this time, and step (5) is selected.
286), the change flag is reset to 10''. If the change flag is 1"0", the display LED (263) is turned on in step (52B?>), and the display LED (2
64) is off. If YES, that is, if it is determined that the "binding margin creation mode" is fully selected, it is determined in step (5288) whether or not the manual feed tray detection switch (SW9) is on. Switch (SW9
) is on and the manual tray 36) is closed, a subroutine for processing introduction of binding margin reduction is called in step (5289). If the switch (SW9) is off and the manual feed tray (36) is open, or the display LED (263) is turned off in step (5290).

When it is determined that the display LED (264) is on, that is, "binding margin + automatic reduction mode" is selected, a subroutine for processing binding margin cancellation is called in step <5291), and the normal mode (mode that does not create a binding margin). That is, if the manual feed tray (36) is open, the "binding margin + automatic reduction mode" is canceled because it is not known what size paper will be inserted and the automatic reduction ratio cannot be calculated.

As mentioned above, by operating the change flag, "normal mode"
- "Binding margin creation mode" is switched by pressing the binding margin fp mode select key (212) [Step (52805), "Binding margin creation mode" → "Binding margin +
"Automatic reduction mode" or "binding margin + automatic reduction mode" and "normal mode" are switched by turning off the binding margin copy mode select key (212) [Step (5)
284)], that is, if the binding margin copy mode select key (212) is turned on and the magnification up/down keys (201) and (202) are operated to change the binding margin amount, the binding margin copy mode selection key (212) is turned on and the I did not turn on the Be mode select key (212), but instead turned on the binding margin copy mode select key (212) to change the binding margin amount.
) is turned on, and sets the change flag to rl.[Step (5283) cancels the mode shift.

Next, when it is confirmed in step (S292) that the binding margin flat mode select key (212) is on, the number of copies displayed in the display segment (221') is stored in the memory in step (5293), and In step (5294), the value of the binding margin memory is displayed on the display segment (221), and in step (S295), the "mm" display (223) is turned on. Also, in step (5296)
When the off-edge of the binding margin copy mode select key (212) is confirmed, the binding margin copy mode select key (212) is displayed in the display segment (221) in step (5297).
212) is displayed, and the "mm" display (223) is turned off in step (529B).

FIG. 35 shows a subroutine for processing the analog copy mode select key (205) executed in step (5194).

First, in step (5300), when it is confirmed that the Anamo copy mode select key (205) is on, in Step (5301), the Anamo copy mode select key L is confirmed.
When it is determined that E D (256) is active, that is, the normal mode is selected, step (5302)
) calls the Anamo introduction processing subroutine, and in step (5304) sets the change flag to rIJ. Subsequently, when the off-edge of the analog copy mode select key (205) is confirmed in step (5305), it is determined in step (5306) whether or not the change flag is set to "O". If the change flag is rl, it means that Anamo copy mode is selected at this time, and step (
5308) sets the change flag to "rO". If the change flag is 10'', step (5307) calls a subroutine for processing Anamo cancellation.

Next, when it is confirmed in step (5309) that the analog copy mode select key (205) is on, the number of copies displayed in the display segment (221) is stored in the memory in step (5310), and in step (5310), the number of copies displayed in the display segment (221) is stored in memory. 5311) to display the value of the Anamo rate memory in the segment (
221), and the "%" display (222) is turned on in step (5312). In addition, when the off-edge of the Anamo copy mode select key (205) is confirmed in step (5313), the Anamo copy mode select key (2
Display the number of copies before turning on 05), and then press step (
5315) to turn off the "%" display (222).

FIG. 36 shows a subroutine for processing the cassette select key (196) executed in step (5195).

First, in step (5320), the paper feed slot select key (1
96) is confirmed to be on-edge, step (532) is confirmed.
In 1), the top picture paper selection display L E D (250)
Determine whether or not is on. If it is on, that is, if the main paper feed port 20) of the copying machine body (1) has already been selected, then in step (5322) the docking detection switch (SV40) is turned on and off to activate the three-stage paper feed unit. (60)
It is determined whether or not the paper is fully connected to the lower paper feed port (25). If it is on, the upper cassette (62) of the three-tier paper feed unit (60) is selected in step (5323), and the top paper selection display is displayed in step (5325).
(250) and the sketch paper selection display L.
Turn on ED (251). Said step (5322)
If it is determined that the switch (SV40) is turned off and the three-stage paper feed unit (60) is not connected, the lower paper feed port (25) is selected in step (5324), and the step (S325) is performed. Process in the same way.

On the other hand, in the step (5321), the display L E D <
If it is determined that the docking detection switch (SV40) is off and the main paper feed slot (20) is not selected, it is determined in step (S326) whether the docking detection switch (SV40) is on or off, and if it is off, it is determined in step (5327). ) in the main paper feed slot (20
) is selected, and in step (5328), the upper picture paper lower selection display LED (250) is turned on, and the lower picture paper lower selection display LED (251) is turned off.

In step <5326>, the switch (SV40) is turned on and the three-stage paper feed unit (60) is placed in the lower paper feed slot (25).
, and step (532
If it is determined in step 9) that the upper cassette (62) has already been selected, the middle cassette (63) is selected in step (5330). And step (53
At step 31), the display L E D (250) is turned off and the display L E V (251) is turned on.

Also, in step (5332), the three-stage paper feed unit (60
) If it is determined that the middle cassette (63) has already been selected, the lower cassette (63) is selected in step (5333).
64) and process step (5331) in the same way. Further, if the determination in step (5332) is No, that is, if the lower cassette black 4) has already been selected, then in step (5334) the display LE
At the same time as turning on D (250), the display L E D (2
51) is turned off.

Next, in step (5335), a subroutine for processing the display of the size of paper that can be accommodated in the selected cassette is processed, and in step (5336), a subroutine for processing paper size code change is called.

Next, in step (5337) the display L E D (26
When it is determined that 4) is on, that is, "binding margin + automatic reduction mode" is selected, step (5338)
Calls a subroutine that calculates the automatic reduction magnification for the newly selected paper size, sends the calculated magnification to (CPU2) in step (5339), and displays the magnification in step (5340). do.

FIG. 37 shows a subroutine for processing the book copy mode select key (213) executed in step (5196).

First, when it is confirmed in step <5350 that the book copy mode select key (213) is on, in step (5351') it is determined whether the document detection sensor (Se7) is off or not, and in step (5352) the manual feed tray detection switch is checked. It is determined whether or not (SW9) is on. NO to both
If so, that is, the document tray (82) of the ADF (80)
If an original is set in the tray or the manual feed tray (36) is open, the process returns without performing the following process. If YES in steps <5351) and (5352), it is determined in step (5353) whether or not the book copy mode selection display LED (265) is on. If it is off, turn on this display LED (265) in step (5354) and (CPU2)
In order to instruct to scan from side B,
In step (5355), the A-side copy signal is reset to "0", and in step <5356), the B-side copy signal is set to rl.
, set to . On the other hand, if the display LED (265) is on in step (5353), step (5357) is executed to cancel the book copy mode.
) to display book copy mode selection L E D (2
65), step (535B>, (5359
) to reset both the A side copy signal and the B side copy signal to "0".

FIG. 38 shows a subroutine that processes the automatic exposure key (193) executed in step <5197). In this subroutine, when the automatic exposure [AUIO] display (233) is off, the automatic exposure selection cancellation key (193)
When turned on, this display (233') is turned on and the manual exposure step display (234) is turned off. In addition, automatic exposure center setting switch (SV40), (SV4
0), the median value for automatic exposure control is sent to the dimming circuit (305). Conversely, if automatic exposure is canceled, press the switch (SV40).

(SV40) for manual control.

That is, in step <5370) the automatic exposure selection cancellation key (
193) is turned on, and if it is determined in step (5371) that the automatic exposure display (233) is off, the automatic exposure display (233) is turned on in step (5372).
233) and turns off the manual step display (234) in step (5373). Step (537
4) ~ (S376) Te (7) Swing f (SV40)
, (SV40) (') Corresponding to the combination judgment, store the median value of the automatic exposure control in the A register in steps (5377) to (5380), and
1') sends this value to the dimming circuit (305).

If it is determined in step (5371) that the automatic exposure display (233) is on, steps (5385) to <5388) and A
Store the manual value of exposure control in the register,
In step (5389), the automatic exposure display (23B> is turned off, and the value is set to the manual exposure step display (23B).
44). Then, in step (5390), this value is transmitted to the dimming circuit (305).

FIG. 39 shows a subroutine for changing the paper size code that can be executed in step (5336).

Paper size is determined by paper size detection switch <5WI
) to (SW4) and (SW5) to (S kidney 8) are coded based on on/off signals. Therefore,
Each code is determined in each step (5400) to (5406), and the paper size corresponding to the hood is memorized in steps (5408) to (5414). In other words, the paper size code entered in step (5400) is 43.
”, in step <5408) the AS
The paper length is 210 mm and the paper width is 148.5 mm as the jl size. Below, if the code is "4", it is B5jl, if it is ``5'', it is A4 vertical, if it is "6", it is B.
4Jl, "7" is A3i, "10" is B5 side,
If it is "11", it will be judged as A4 landscape, and if it is not a code of 0 or more, it will memorize the paper length and width of each paper.
In step (5407), it is determined that the paper is empty.

FIG. 40 shows the steps (524), (5260),
(5282) shows a subroutine of the binding margin introduction process that can be executed, in which the "normal mode" and the "binding margin creation mode" are sequentially switched.

First, in step (5420), turn on the binding margin flat mode selection display LED (263), and in step (
5421), the value of the binding amount memory is sent to (CPU2).

FIG. 41 shows the steps (5267) and (5289)
The subroutine of the binding margin reduction introduction process executed in is shown below.

Here, "binding margin creation mode" → "binding margin + automatic reduction mode" is sequentially switched.

First, in step <5430), turn off the binding margin copy mode selection display LED (263), and in step <
5431>, turn on binding margin creation + automatic reduction mode selection display LED (264), and step (5432)
) to display magnification selection L E D (252) to (25
5) and zoom magnification key selection display L E D (25
9) to (262) are turned off.

Then, in step (5433), the value of the binding substitution memory is transmitted to (CPU 2). Furthermore, step (5434
).

The magnification select key and copy magnification selected in (5435) are stored in memory for recovery when the mode is released.

Next, in step (5436), a subroutine for automatic reduction magnification calculation processing is called, and the magnification without missing one image calculated from the paper length and binding substitution is calculated in step (5436).
5437) to (CPU2), and step (543
8), the magnification is displayed on the display (238).

FIG. 42 shows the subroutine of the binding margin cancellation process executed in step (5291), in which "binding margin +
"Automatic reduction mode" and "normal mode" are sequentially switched.

First, in step (5440) the binding copy mode selection display LED (263) is turned off, and in step (5440), the binding copy mode selection display LED (263) is turned off.
5441), turn on binding margin creation + automatic reduction mode selection display LED (264). Then, in step (5442), the display of the magnification select key is restored, and in step (5443), the copy magnification memory is restored. Furthermore, in steps (5444) and (5445), (CP
The binding substitution is "0" and the copy magnification are transmitted to U2), and the copy magnification is returned to the display (238) in step (5446).

FIG. 43 shows the steps (5253) and (5302)
This shows a subroutine of the Anamo introduction process executed in 6, in which the switching is sequentially performed from 6 "Normal mode" to "Anamo copy mode".

First, in step (5450), turn on the Anamo copy mode selection display LED (256), and in step (
5451) Magnification key selection display LE selected by
D Turn off (252) to (255) and zoom magnification key selection displays (259) to (262). Then, in steps (5452) and (5453), the magnification select key and copy magnification that have been selected are stored in memory for recovery when the mode is released.Next, in step (54)
54) calculates the copy magnification x analog ratio and stores it in the A register, and in step (5455) the value is sent to the optical system (11).
) is sent to (CPU2) as the scan speed.

As a result, the optical system 11) scans at a speed calculated based on the original magnification and the designated analog ratio.

FIG. 44 shows the subroutine of the Anamo release process executed in step (5307). Here, ・Anamo copy mode" → "normal mode" are switched sequentially. ゛First, in step (5460), turn off the Anamo copy mode selection display LED (256), and in step (
5461), the subroutine (fourth
The display of the memorized magnification select key is restored in step (see Figure 3), and the copy magnification memory is restored in step (5462>).Furthermore, the copy magnification is transmitted in step (5463).

No. 45130 is the step (551), (5338
) and (5436) show the subroutine for automatic reduction magnification calculation processing.

Here, in step <5470), the binding substitution is subtracted from the paper length and stored in the A register, and in step (5471
), the value in the A register is divided by the paper length and stored in the A register, and further, in step (5472), the value in the A register is multiplied by the copy magnification and stored in the A register.

FIG. 46 shows a subroutine for display processing executed in step (S9) of the main routine.

In this subroutine, step (5480) processes one type of paper display, step (5481) processes door display, step (5482) processes color toner display, step (5483) processes book warning display, and step In step (5404), the process of displaying the Anamo warning is sequentially executed.

FIG. 47 shows a 0 display (51) showing the subroutine of one type of paper display processing executed in step (5480).

(52) and (53) are display mode changeover switches (
SV40) is on, the three-stage paper feed unit (6
0) Displays whether the top, middle, or bottom is selected, and if the switch (SV40) is off,
One type of paper set switch (S-ken 30), (S-ken 3
1) and (S%j32), (SV40), (SV40
) and (Sen35).

First, if it is determined in step (5490) that the display mode changeover switch (SV40) is on, then in step (5491') the displays (51), (52), (
53) is turned off.

Next, in step (5492), the three-stage paper feeding unit (60
), the display (Sl) is turned on in step (5493). Step (5
If it is determined in step (5494) that the middle paper feed has been selected, the display (S2) is turned on in step (5495). If it is determined in step (5496) that the lower paper feed has been selected, the display (S3) is turned on in step (5497).

On the other hand, if it is determined in step (5490) that the display mode changeover switch (SV40) is off,
Displayed at step (5498) (51), (52),
(S3) is turned off.

Next, in step (5499), the three-stage paper feed unit (60
) If it is determined that the upper paper feed has been selected, steps (5503) to (5505) are performed based on the combination of the one paper type set switch (SV40) and (SV40) in steps (5500) to (ss02). Display (5
1), (52), or (53).

Further, if it is determined in step (5506) that the middle paper feed is selected, steps (5507) to (550
In steps (5510) to (5512), one of the displays <51), <52), and (53) is turned on based on the combination of switches (SV32) and (Sen33) in step 9). Furthermore, if it is determined in step (5513) that the lower paper feed is selected, step (5514) is performed.
~ (5516) to switch (SV40), (SV40
) based on the combination of steps (5517) to (55
19), turn on display (51), (52), or (53).

FIG. 48 shows a subroutine for door display processing that can be executed in step (5481).

First, in step (5520), it is determined whether or not the front door detection switch (SV40) of the copying machine main body (1) is on. If it is on, the front door is closed, so in step (5521) Display <226) is turned off. If it is off, the front door is open and the door display (2
26) to alert you.

Next, in step (5523), the three-stage paper feeding unit (60
> is determined to be selected, and the docking detection switch (SV40) is turned off by (ICI) in step (5524). ) is confirmed, the door display (
226), and in step (5526) the external paper feed paper jam display LED (
244) and prohibits copying in step (5527). Also, in step (5523), it is determined that the paper feed port of the three-stage paper feed unit (60) is not fully selected, or even if it is set, the on signal of the docking detection switch (SV40) is detected in step (5524). Once confirmed, the door will be displayed (226) at step (5528).
is turned off, and in step (5529) the display LED (
244) is turned off.

FIG. 49 shows a subroutine for color toner display processing that can be executed in step (5482).

First, in step (5530), it is determined whether the color toner detection sensor (Se4) is on. If it is on, that is, if the developing device (7) containing a developer other than standard toner (black toner) is fully set, step (
5531) turns on the color toner display (237).

If it is off, the color toner display (237) is turned off in step (5532).

FIG. 50 shows a subroutine for book warning display processing that can be executed in step (5483).

First, when it is determined in step (5540) that the book copy mode selection display LED (265) is on, it is determined in step (5541) whether the selected paper is A4 landscape or not, and in step (5542) It is determined whether the selected paper is B5 landscape or not.

When copying a book, the spread of the book must be copied on horizontal paper. Therefore, step (5)
541) and (5542), the warning display (229) is turned on in step (5543). When it is determined in step (5540) that the book copy mode is not fully selected, and in step (554)
1), if YES is determined in (5542), the warning display (229) is turned off in step (5544).

FIG. 51 shows the subroutine of Anamo warning display processing executed in step (5484).

First, when it is determined in step (5550) that the Anamo covey mode select display LED (256) is on, it is determined in step (5551) whether the selected Anamo covey rate is within 95 to 105%. Determine whether

If the anamorphic rate is other than that, the resolution of the image will deteriorate considerably and characters will become unreadable, so step (
5552) to turn on the Anamo warning display (230). If the Anamo rate is within 95-105%, step (55
53) to turn off the Anamo warning display (230).

FIG. 52 shows a subroutine for processing a refeeding cassette, which is executed in step (510) of the main routine.

First, if it is determined in step (5560) that it is the first copy using the paper refeeding device (130) (the first copy in rifii side/composite copy mode), then in step (5561) At the same time, the selected paper feed port is stored in the memory (C), and the paper feed size is stored in the memory (CD). ! l! step <5562)
determines whether the paper refeed cassette detection sensor (SelO) is on or off, and if it is off, that is, the paper refeed cassette (15
0) is completely removed from the paper refeeding device (130),
It is determined that this is the second copy in the duplex/composite copy mode, and the re-feed cassette (15
Select the paper feed slot of the copying machine main body (1) in which the copying machine 0) is set.

Next, in step (5564) the sensor (SelO)
If it is determined that the image is on, that is, in the case of the first copy, or if the second copy is completed and the first copy is to be performed again, step (55
65), the memory (D) is stored in the paper feed slot stored in the memory (C).
) determines whether there is a paper size stored in
If there is, in step (S566), the paper feed slots that are completely stored in the memory (C) are selected. If NO is determined in step (5565), it is determined in step 7 (S567) whether or not the paper size that can be stored in the memory (D) is present in another paper feed port, and if there is, step In step (5568), the paper feed port is selected, and if there is no paper feed port, the paper feed port stored in the memory (C) is selected in step (5569).

That is, when the second copy is completed and the first copy is to be performed again, if the paper size matches the paper feed slot whose memory is full, that paper feed slot is automatically selected [step (5565)]. , (5566) ], and if that paper feed port has been replaced with a vapor of another size, select the paper feed port of the paper size nearer to the memory [Steps (5567) and (556B) If there is no paper-sized paper feed slot, select the paper feed slot stored in memory [Step <55]
69) Ko.

FIG. 53 shows a subroutine for initial processing that can be executed in step (511) of the main routine.

Here, if the power is turned on in step (5570''), or if the all-reset key (204) is turned on in step (5572), initial mode processing is performed in steps (5571) and (5573). 0 to call the subroutine Next, step (5574
), or when the copy end timing is confirmed in step (5575), an auto clear timer is started in step (5576). In step (5577), it is determined whether the paper refeed cassette detection sensor (SelO) is on,
If it is turned on, that is, if the paper refeeding cassette (150) is set in the paper refeeding device (130), a subroutine for initial mode processing is called in step (S579). In the step (557B), the sensor (SelO)
is determined to be off, that is, the paper refeed cassette (
150) is set in the paper feed section of the copying machine main body (1), the auto clear timer is not judged and the process returns.

FIG. 54 shows the steps (5571) and (5573)
, (5579) shows the initial mode processing subroutine executed.

First, in step (5590) the number of copies is set to ``1'', in step (5591) the upper paper feed slot is selected as the paper feed slot, in step (5592) the magnification is set to 1x, and in step (5593) ) to set the exposure to automatic exposure.Next, in step (5594) it is determined whether or not the paper refeed cassette detection sensor (SelO) is on, and if it is off, Machine body (1)
If it is set to , step (5595
) to display the paper feed slot selection set in E D (
250) or (251) flashes to give a warning.

FIG. 55 shows a subroutine for processing the paper refeed cassette warning executed in step (512) of the main routine.

First, in step (5600), it is determined whether or not the paper refeed cassette detection sensor (Selo) is on, and if it is off, [
If the paper refeed cassette (150) is set in the copying machine main body (1), check whether the duplex or composite copy mode was selected on the paper refeed device (130) in step <5601). If it is determined and selected, in step (5602) the paper feed slot selection display LED (250) in which the paper refeed cassette (150) is set is displayed.
Or make (251) blink.

FIG. 56 shows a subroutine for processing a paper refeed cassette instruction executed in step (513) of the main routine.

Here, first, in step (5610), the paper refeeding device (
130), the paper feed port selected at that time is stored in the memory (E). Next, in step (5612), the paper refeeding device (1
When it is determined that the first feed is completed in step (5613), it is determined in step (5615) whether or not the paper feed slot that has been completely stored in the memory (E) is the upper paper feed slot (20).
), it is determined whether or not it is the lower paper feed port (25), and in step (5614) or (5616), the separate paper feed port selection display LED (251) or (250) is blinked, respectively.

That is, in the second hubby using the paper refeeding device (130), the paper feed port selected during the first copying is left as is, and the paper refeed cassette (150) is used for another paper feed. Since it is easier to operate if the re-feed cassette (150) is set in the paper feed slot, another paper feed slot is indicated by flashing the display L E D (250) or (251). .

(k-2, Control of Optical System) FIG. 57 shows the main routine (CPU 2) for controlling the optical system (11).

When the (CPU 2) is reset and the program is started, first, in step (5620), (RAM) is cleared, various register settings, etc. (CPU 2) are initialized, and initial settings are made to put the device into the initial mode.

Next, in step (S621), an internal timer is started, in step (5622), each subroutine of the optical system controller is called in a lens control step (5623), and in step (5624), the internal timer is terminated. Wait and return to step (5621).

Further, when there is an interrupt request from (CPU1), communication with (CPUI) is performed in step (5625).

FIG. 58 shows the lens control subroutine executed in step (5622) of the main routine.

First, in step (5630) it is determined whether the analog copy mode selection display LED (256) is on or off, and if it is on, move the lens 16) to the same magnification position in step (5631"), and if it is off, Ba step (56
At step 32), move the lens (16) to the magnification position sent from (CPUI).

That is, in this embodiment, in the anamorphic copy mode, the optical system (11) is fixed while the lens (16) is fixed at the same magnification position.
Since the system employs a method of varying the magnification in the scanning direction by changing the scanning speed of the lens (16), if the analog copy mode is selected, the lens (16) can be moved to the same magnification position. In other copy modes, the lens (16) is moved according to the copy magnification.

FIG. 59 shows a subroutine for optical system control executed in step (5623) of the main routine.

First, if it is determined in step (5640) that the book copy mode selection display LED (265) is on, it is determined in step (5641) whether or not the book A side copy number is "1", and step In (S649), it is determined whether the book B side copy signal is 11''. and,
When copying side A of the book in the normal copy mode and in the book copy mode, normal optical system control is performed in step (5642) and subsequent steps.

That is, in step (S642) the fixed position switch (SWI
When the on-edge of O) has been confirmed and the optical system (11) has left the fixed position, in step (5643), the glue imager (rG) is set for register alignment with the paper, taking into consideration the scanning speed, and in step (5644) ") sets the scan length timer (TH) determined by paper length x magnification. Step (5645') sets the timer ffG)
When the completion of is confirmed, the timing signal is set to "1" in step (5646). Also, step (56
When the end of the scan length timer (TH) is confirmed in step 47), the scan signal is reset to "0" and the return signal is set to "rl" in step (S648).

On the other hand, when copying three sides of a book in book copy mode, if it is determined in step (5650) that the optical system (11) has scanned for "paper length x magnification", steps (5651) and (5652) are performed. and the said timer (TG
).

Set (TH). And step (5653)
~(5656), the steps (5645) ~(564)
Execute the same process as in 8). However, the scan length timer (
Before the end of TH), the optical system (1
When it is determined that 1) has reached the maximum scan length, the process moves to step (5656), where the scan is ended and the return is started.

(k-3, control of A D F) Fig. 60 shows the control of A D F (80) (CPU3
) shows the main routine.

When the (CPU 3) is reset and the program is started, in step (5660), initialization of the (CPU 3) such as clearing the (RAM), setting of various registers, etc., and setting the device to the initial mode are performed.

Next, an internal timer is started in step (5661), a mode selection processing subroutine is called in step (5662), a document feed roll subroutine is called in step (5663), and a document size detection processing subroutine is called in step (5664). , step (5665)
to perform other processing. When all subroutine processing is completed, the process waits for the internal timer to end in step (5666) and returns to step (5661).

Further, when there is an interrupt request from (CPUI), communication with (CPUI) is performed in step (5667).

Figure 61 shows the main routine steps (of CPU3).
5662) shows a subroutine for processing mode selection that can be executed.

First, when it is confirmed in step (5670) that the paper mode select key (280) is on, the automatic paper select mode display LED is activated in step (5671).
(281) is on or not, or step (5674)
) to display automatic magnification selection mode L E D (282
) is on or not 0 display L E D (281
) is onte lever, step (S672)te display L E
At the same time as turning off D (281), step (567
3) Turn on the display LED (282). Also, display L
If E D (282) is turned on, the te display L E D (282) is turned off in step (S675), and the manual mode display L E D (283) is turned on in step (5676). , display L
If E D (282) is also turned off, step (5
677), the display L E D <283) is turned off, and at the same time, the display L E D (281
) on. That is, each time the key (280) is turned on, the paper selection mode changes to automatic paper selection.
You can switch between automatic magnification selection and manual magnification selection.

On the other hand, in step (5679), the odd number original document input key (2
84) is confirmed to be on-edge, step (568) is confirmed.
0), it is determined whether the display LED (285) is on or not. If it is on, display L in step (5681)
ED<285), and if it is off, step (56
82), the display LED (285) is turned on.

Figure 62 shows the main routine steps (of CPU3).
5663) shows a subroutine for document tracking executed in step 5663).

First, in step (5690), the original detection sensor (Se7
) is on, that is, if it is determined that a document is placed on the document tray (82), step (5691
), if the ADF start signal from (CPUI) is "14 or not, '1", step (5692)
After confirming that the front side flag that displays the mode for copying the front side of the original is "rO", select step (5693).
) sets this surface flag to rl, and in step (5
694), the drive motor of the conveyor belt (86) is rotated in the forward direction, and the document feed motor is turned on. If it is determined in step (5691) that the ADF start signal is "o", it is determined in step (5695) whether or not the document feed flag is "11", and if it is "rl", step (56
At step 96), the document feed flag is reset to "r□", and the process proceeds to step (5692).

Next, in step (5697), it is determined whether or not the double-sided original signal from (CPU1) is "10", and if it is "rO", the subroutine for document feeding processing is called in step (5698), and the subroutine of "1. If so, a subroutine for document feeding reversal processing is called in step <5699>.

Next, in step (5700), when a signal indicating that the optical system (11) has scanned the number of copies is confirmed from the (CPUI), in step (5701), the scan end flag is set to "1". 5702), if this scan end flag is 10'', this subroutine is terminated, and if it is ``1'', step (5703) is executed.
Then, it is determined whether the double-sided original signal is 10'' or not.

If it is "0", step (570) will be used to feed the next document.
In step 4), reset the surface flag to r□, and reset the scan end flag to rO'', and in step
In step 05), a subroutine for document ejection processing is called. Also, in the step (5703), the double-sided original signal is 11''.
If it is determined that the surface flag is 'rl', it is determined in step (5706), and if it is '1', that is,
If the front side copy of the original has been completed, step (570
In step 7), a subroutine for document reversal processing is called, and if the front side flag is "rO", the process moves to the step (5704).

FIG. 63 shows a subroutine for document feeding processing that can be executed in step (5698).

First, in step (5710), the size detection sensor (Se
When the on-edge status in step 8) is confirmed, that is, when it is confirmed that the original is fed from the tray (82), the flag (K) indicating the feeding of the original is set to 11'' in step (5711). At the same time, a timer (TJ'') is started. This timer (IJ) is set in advance for the time it takes for the fully fed document to receive the conveying force from the conveyor belt (86).

Next, in step (5712), the flag (K) is set to "IJ", and in step (5713), the size detection sensor (
When it is confirmed that the document Se8) is off-edge, the flag (K) is reset to '''O4 in step (5714) and the timer (IK) is started. The rear edge is the document glass (
18) The time required to reach the normal position (image exposure start position) is set in advance.

Next, when the end timing of the timer (IJ) is confirmed in step (5715), the document feed motor is turned off in step (5716). Furthermore, step (5717)
When the end timing of the timer (TK) is confirmed in step (5718), the conveyor belt motor is turned off, and in step (5719), the original position signal is set to 11'' and sent to (CPUI). Now you are ready to scan the front side of the document.

FIG. 64 shows the subroutine of the document feeding reversal process executed in step (5699).

First, in step (5730), the size detection sensor (Se
When the on-edge of 8) is confirmed, step (5731)
) to turn on the reverse switching solenoid and press the switching claw (8
7) is switched to the position where it guides the original return unit (95), the reversing motor that drives the return unit (95) is turned on, and a timer (IL') is started in step (5732). )
Similarly to the timer (rJ), the time required for the fed document to receive the conveyance force from the conveyor belt (86) is set in advance. Then, when the end timing of the timer (L) is confirmed in step (5733), the document feed motor is turned off in step (5734).

Next, in step (5735), it is determined whether or not the conveyor belt motor is rotating normally, that is, whether or not the document is being ejected.If YES, the document detection sensor (Se9 ) is confirmed to be on-edge, and the flag (K) is set to 1"1" in step (5737).

Then, in step (573g), this flag (K) is set to r
l.

If it is determined that this is the case and the off-edge of the document detection sensor (Se9) is confirmed in step (5739), that is, if the document is sent to the return unit (95), the flag (K) is set in step (5740). is reset to "O", and the conveyor belt motor is switched to reverse rotation in step (5741).

Next, in step (5742), it is determined whether the conveyor belt motor is in reverse rotation, that is, whether the conveyor belt (86) is ready to return the document onto the document table glass (18), and the answer is YES. If so, check whether the document detection sensor (Se9) is on-edge in step (S743), and then proceed to step (S743).
744) starts the timer (TM). This timer (rM') is set so that the leading edge of the inverted original is on the original platen glass.
18> The time required to reach the upper fixed position (image exposure start position) is set in advance. Therefore, step (57
When the end timing of this timer (TM) is confirmed in step 45), the reversal switching solenoid is turned off in step 5746, and the switching claw (87) moves the document to the ejection section (90).
) and step (S747).
The conveyance belt motor is turned off at step (5748), the reversing motor is turned off at step (5748), and the document home position signal is set to I''1'' at step (5749) and sent to (CPUI). This completes the preparation for scanning the i-side of the document.

FIG. 65 shows a subroutine for document ejection processing that can be executed in step (5705).

First, in step (5750), the original detection sensor (Se7
) is on or not, the document is placed on the document tray (82), and if it is determined to be on, the document feed flag is set to 11'' in step (5751).

If there is no document on the document tray (<82) and it is determined that the document is off, the transport belt motor is rotated forward in order to eject the document in step <5752), and the timer (
IN). This timer (TN) is preset with the time required for the longest document to be ejected from its fixed position on the document platen glass (18) to the ejection tray (91). Therefore, in step (5754), the timer (IN”) is set.
When the end timing of is confirmed, step (5755
) to turn off the conveyor belt motor.

FIG. 66 shows a subroutine for document reversal processing executed in step (5707).

First, in step (5760), the scan end flag is set to r.
1", the scan end flag is reset to "0." in step (5761), and step (5761) is performed.
At step 762), the reversal switching solenoid is turned on to switch the switching pawl 87) to the position where it guides the document to the return unit (95), and at step <5763), the conveyor belt motor is rotated forward and the reversing motor is turned on.

Next, if it is determined in step (5764) that the conveyor belt motor is rotating normally, and it is confirmed that the document detection sensor (Se9) is on-edge in step (5765), a flag ( J) to "rl". Then, in step (5767), it is determined that this flag (J) is "r'1", and in step (5768), the off-edge of the document detection sensor (Se9) is confirmed, that is, the document is returned to the return unit. (9
5), the flag (J) is reset to 10'' in step (5769), and the flag (J) is reset to 10'' in step (5770).
Switch the conveyor belt motor to reverse rotation with .

Next, if it is determined in step (5771) that the conveyor belt motor is in reverse rotation, and it is confirmed that the document detection sensor (Se9) is on-edge in step (S772), the timer (TO) is activated in step (5773). '). This timer (rO) is
), the leading edge of the inverted original is on the original platen glass (18
) The time required to reach the fixed position (image exposure start position) above is set in advance. Therefore, step (5774
), when the end timing of this timer (TO) is confirmed, the surface flag is reset to "ro" in step (5775), the reverse switching solenoid is turned off in step (5776), and the conveyor belt motor is turned on in step (5777). At the same time, turn off the reversing motor and proceed to step (5).
778) to send the original position signal to 11. Set to .

Figure 67 shows the main routine steps (of CPU2).
5664) shows a subroutine for document size detection processing executed in step 5664).

First, in step (5780) the size detection sensor (Se
When the on-edge of step 8) is confirmed, step (5781
) to start the timer (TP'). This timer (
IP) is for detecting the length of the document, and when the off-edge of the size detection sensor (Se8) is confirmed in step <5782), the timer (T
Press F> to stop. Next, step (5784)
Then, the length of the document is calculated by multiplying the value detected by the timer (TP) by the transport speed and stored in the A register.

Next, steps (5785) to (5789)
, sequentially determines whether the stored value (document length) is 182 mm or less, 210 mm or less, 275 mm or less, 297 mm or less, or 364 mm or less. Y at each step
If ES, steps <5790) to (S7
94), change the document size to B5 landscape, A4 landscape, or
BS vertical.

It is determined that they are A4u and B4, and if No in step (5789), it is determined that it is A3 in step (5795).

(k-4, Control of sorter) FIG. 68 shows the main routine of (CPU4>) which controls the sorters (100) and (100a).

When the (CPU 4) is reset and the program is started, in step (5800), initialization of the (CPU 4) such as clearing the (RAM), setting of various registers, etc., and setting the device to the initial mode are performed.

Next, the internal timer is allowed to start in step (5801), the subroutine for mode switching processing is called in step <5802), the subroutine for sorting processing is called in step (5803), and the subroutine for sorter motor processing is called in step (5804). (5805) executes other processing. When the processing of all subroutines is completed, the process waits for the internal timer to end in step (5806) and returns to step (5801).

Further, when there is an interrupt request from the (CPUI), communication with the (CPUI) is performed in step (S807).

FIG. 69 shows a subroutine for processing mode switching executed in step (5802) of the main routine (CPL14).

First, when it is confirmed in step (5810) that the sorter operation mode select key (270) is on, in step (5811) the sorting mode display LED (27
1) is on or whether the grouping mode display LED (272) is on in step (5814).If the 0 display LED (271) is on, step (5812) Displayed in L E D (2
71) is turned off, and at the same time, the display LED (272) is turned on in step <5813). Also, display L E
If D (272) is on, step (5815
) to turn off the display LED (272), and at the same time display the non-sort mode in step (5816) and turn off the display LED (272).
73). Furthermore, display L E D (272
) is also turned off, the display L is displayed in step (5817).
At the same time as turning off ED (273), step (5818
) to turn on the display LED (271). That is, each time the key (270) is turned on, the sorter operation mode is sequentially switched among sorting mode, grouping mode, and non-sorting mode.

On the other hand, in step (5819), the paper refeed cassette detection sensor (SelO) is on-edge, that is, the paper refeed cassette (
150) is set in the paper refeeding device (130), the subroutine of sorter processing 1 is called in step (5820). Also, step (5821
) detects the off-edge of the sensor (SelO), that is, that the refeeding cassette (150) is removed from the refeeding device (130), calls the subroutine of sorter processing 2 in step (5822).

If it is determined in step (5823) that the sensor (SelO) is on, it is determined in step (5824) whether the double-sided copy mode selection display LED (276) is on or not, and in step (5825) the composite copy mode is selected. It is determined whether the selection display LED (278) is on. If either one is on, that is, one of the copy modes is selected, the subroutine of sorter processing 1 is called in step (5826). Similarly, in steps (5827) and (5828) the display L E D
If (276) and (278) are on, step <
5829) calls the sorter processing 2 subroutine.

Next, in step (5830), the paper refeed cassette (150)
), that is, the second copy using the paper refeed cassette (150), and step (583
If it is determined in step 1) that the sorter operation mode is the non-sort mode, the second sorter (10
0a) Determine whether it is a multi-connected sorter that connects 6
If it is not a multiple sorter, the non-sorting mode display LED (273) is turned off in step (S833), and the grouping mode display LED (273) is turned off in step (5834).
2) is turned on, that is, if the first sorter (100) is a 0-fold continuous sorter that automatically selects the grouping mode, the first sorter (100) is selected in step (5835).
is set to non-none paper ejection mode. That is, the bridge (12
0) is lowered to the lower stage, and the paper sent from the non-sort path (110) of the first sorter (100) is discharged onto the paper discharge section (122).

FIG. 70 shows the steps (5820) and (5826)
The subroutine of sorter processing 1 executed in FIG.

First, in step (5840), the selected sorter operation mode is stored in the memory (A), and in step (5841)
) to determine whether it is a multiple sorter or not. If it is not a 0-multiplex sorter, the non-sort mode is displayed in step (5842).
E D (273) is turned on, and in step (5843), the sorting mode display L E D (271) is turned off, and the grooving mode display L E, D (2
72) is turned off, and in step (5844) the first sorter <
100) is set to non-sort mode. That is, the settings are made so that the first copied paper is sent to the paper refeeding device (130) set in the non-sort paper discharge section of the sorter (100). In addition, if it is a multiple sorter, the step (S
845') sets the second sorter (100a) to non-sort mode, and in step (5846) sets the first sorter (100a) to non-sort mode.
Let be the non-sort passing mode. That is, the bridge (12
0) is raised to the upper stage, and the paper sent from the non-sort passage (110) of the first sorter (100) is transferred to the second sorter (100) via the bridge (120).
0a). The second sorter (100a) feeds the fed paper to a paper refeeding device (130) set in its non-sort paper discharge section.

FIG. 71 shows the subroutine of sorter processing 2 executed in steps (5822) and (5829).

First, in step (5850), display the non-sort mode L.
Turn on E D (273) and step (5851)
If it is determined that the mode stored in the memory <A) is the sorting mode, the display LED (271) is turned on in step (5852), and step (
5853), the first bin is first selected as the bin (101) to which paper is to be distributed. Step (5854
), if it is determined that the mode stored in the memory (A) is the grouping mode, step (ssss)
The display LED (272) is turned on, and step (5853) is similarly executed. If the mode stored in memory (A) is non-sort mode, step (5)
856) to turn on the display LED (273),
In step (5857), the first sorter (100) is set to the non-sort paper discharge mode as in step (5835).

Figure 72 shows the main routine steps (of CPU4).
5802) shows a sort processing subroutine executed in step 5802).

First, if it is determined in step (5860) that the sorting mode display LED (271) is turned on, in step (5861) it is determined whether the paper detection sensor (Se16) set in the sorting path (107) is on-edge or not. No, and the over flag indicating that the number of copies exceeds the number of bins in step (5862) is set to "O".
J or not is determined. If YES in both cases, the bin number of the first sorter (100) is incremented in step (sg63). However, since the initial value of the bin number is "1", if the bin number is "1", it is not incremented.It is sorted sequentially into the bin (101) of the first sorter (100), and the first Sorter (
When it is determined that the bin number of 100) has become "last bin number + 1", it is determined in step (5865) whether or not it is a multi-continuous sorter. ! If you have an i-multiplex sorter, step (
5866), set the bin number of the first sorter (100) to “1”
, and in step (S867) the second sorter (100a
) is not "1", the bin number is incremented.

Next, in step (5868) it is determined whether or not the set number of sheets of paper has been detected, and if the paper has not been completely ejected, it is determined in step (5869) that the bin number has exceeded the maximum value [in the case of a multi-layer sorter, the bin number has exceeded the maximum value]. Including the sorter (100a)], the over flag is set to rl in step (5870), and the first sorter (100) is set to non-sort mode in step (5871). Also,
If it is determined that the set number of copies have been ejected in step (586g), the bin number of the second sorter (100a) is returned to '1' in step (5872), and the over flag is set to '1' in step (5873). 0., and in step (5874) the bin number of the first sorter (100) is returned to "1".

On the other hand, if it is determined in step <5860) that the sorting mode display LED (271) is turned off, it is determined in step (5875) whether the grooving mode display LED <272) is turned on. If it is on, it is checked in step (S876) whether the paper detection sensor (Se16) is off-edge or not, and in step (587)
7), whether the over flag is "o" or not, step (58
In step 78), it is determined whether or not the set number of sheets have been discharged. If YES in both cases, in step S879, if the first sorter pin number is not "1", the bin number is incremented. Subsequently, in step (5880), it is determined that it is a multiple sorter, and in step (5881), the bin number of the first sorter (100) is determined to be "last pin number + 1".
If it is determined that the first
The pin number of the sorter (100) is returned to "1", and the bin number of the second sorter (100a) is changed to "1" in step (5883).
If the bin number is not 1", the bin number is incremented.

Next, in step (5884), if the bin number exceeds the maximum value [in the case of a multiple sorter, the second sorter (100a
), the over flag is set to rl in step (5885), and step (5886
) puts the first sorter (100) into non-sort mode and returns the bin number of the second sorter (100a) to "1".

Further, if it is determined in the step (5875) that the grouping mode display L ED <272) is turned off, the non-sort mode is selected in step (5887).

No. 7311 indicates a subroutine for sorter motor processing executed in step (5804) of the main routine of (CPU 4).

First, when it is confirmed in step (5890) that the paper discharge detection sensor (Se5) of the copying machine body (1) is on, the sorter motor is turned on in step (5891), and the timer (TQ) is canceled in step (5892). Next, when off-edge of the discharge detection sensor (Se5) is confirmed in step (5893), a timer (TQ) is started in step (5894). This timer (TQ) has a preset time period for the paper to be distributed to each pin (101) after it is conveyed through the path in the sorter (100). Therefore, when the end timing of this timer is confirmed in step (5895), step (5896)
Turn off the sorter motor.

(k-5, Control of paper refeeding device) Fig. 74 shows the control of the paper refeeding device (130) (CPU
) shows the main routine.

When the (CPU) is reset and the program starts, first step (5900), (RAM)
(7) Clear, initialize various registers, and perform initial settings to put each device into initial mode.

Next, in step (5901), the internal timer of (CPUS) is started. This internal timer determines the time required for one routine of this main routine, and its value can be set in advance in step (5900).

Next, the subroutines shown in steps (5901) to (5910) are sequentially filled, and when the processing of all subroutines is completed, in step (5911'')
Performs other processing such as communication with the
2), wait for the internal timer to end, and then proceed to step (59).
Return to 01). This long time of one routine is used to count the various timers that appear in each subroutine.

Figure 75 shows the main routine steps (<CPU5).
5902) shows a subroutine for power-on processing executed in step 5902).

First, when the power is turned on in step (5920), the double-sided copy mode display LED (276) and composite copy mode display LED (278) are turned off in steps (5921) and (5922), and in step (5923),
(5924), solenoid (162), (167)
Turn off. That is, when the power is turned on, a mode is first set in which paper is ejected to the paper ejection tray (145).

Figure 76 shows the main routine steps (CPU5).
5903) shows a motor control subroutine executed in step 5903).

First, in step <5930) the display L E D (27
6), <278) is on, the detection sensor (Sell) is turned on in step (5931).
After confirming that the paper is on-edge, that is, when the paper starts to be conveyed into the paper refeed cassette (150) in the duplex/composite copy mode, the motor (M6) is turned on in step (5932). ,a! Then, the sheet number counter is incremented in step (5933), the auto clear timer (TR) is reset in step (5934), and step (5933) is incremented.
935), the paper length detection timer (TS) is started.

Next, when off-edge of the sensor (Sell) is confirmed in step (5936), an auto-shut timer (Tu> is set in step <5937), and step (59
In step 38), the paper length detection timer (TS) determines whether the paper length is 210 mm. Since this paper refeed cassette (150) is exclusively for A4 horizontal feeding, whether or not the paper ejected from the copying machine main body (1) is A4 horizontal feeding is determined based on its long dimension of 210 mm.

If it is not A4 horizontal feed, the switching flag is set to 11'' in step (5939). This switching flag is set to "1" when it is inappropriate to feed paper into the paper refeeding cassette (150), and instructs to switch the paper passing mode to the paper discharge tray mode.

Next, in step <5940) the autoshaft timer (
When the completion of step 10) is confirmed, the motor (M6) is turned off in step (5941), and the motor (M6) is turned off in step (5942).
When the end of the auto clear timer (TR) is confirmed,
In step (5943), the switching flag is set to "1."

That is, the auto clear timer (TR) is set to be slightly longer than the set time of the vapor length detection timer (TS) plus the paper transport interval time during continuous copying, and the auto shut timer <Iu) is set to be slightly longer than the set time of the vapor length detection timer (TS) plus the paper conveyance interval time during continuous copying. is set slightly longer than the paper conveyance interval time. Therefore, if the paper continues to be completely conveyed during continuous copying, the paper length detection timer <TS) starts one after another in step (5935), and the motor (M6) is never turned off. When the last copy or continuous copy passes the sensor (Sell), the auto-shut timer (TU) ends.
The motor (M6) is turned off in step (5941).

In addition, the switching flag is activated when copy paper of a non-standard size (other than A4 horizontal feed) is fed [step (593g)]
, auto clear timer TR) ends [step (5942)], it is set to "1" and instructs switching to the paper discharge tray mode in the subsequent subroutine.

Figure 77 shows the main routine steps (
5904) shows a subroutine for double-sided/composite selection processing that can be executed.

First, when it is confirmed in step (5950) that the duplex copy select key (275) is on-edge, step (5950) is confirmed.
951") is suitable for the selected paper size (A4 horizontal feed or not), and then proceeds to step (
5952), it is determined whether the number of copies is less than or equal to a value (50 sheets) that approaches the storage limit of the paper refeed cassette (150), which is 70 sheets. If both are YES, press the manual feed tray detection switch (SW9) in step (5953).
Determine whether or not is on. If it is on, that is, if it is determined that the manual feed tray (36) is closed and manual copying is not being performed, then in step (5954) the 0 display L is used to determine whether the double-sided copy mode display LED (276) is on. If E D (276) is on, duplex copy mode has already been selected, and the current key (275) is on.
) is the second key operation, so processing is performed to cancel the double-sided copy mode.

That is, in step (S955) the display L E D (27
6) off, step (5956), (5957)
Solenoid (162).

(167) is turned off.

On the other hand, in the step (S954), the display L E D (
276) is off, step (59
Step 58) determines whether the paper refeed cassette detection sensor (SelO) is on or not, and step (5959) determines whether the over flag is ro.
, whether the paper jam flag is r in step (5960)
O, determine whether or not. If both are YES, display composite copy mode in step (5961) L E D
(278) is on or not. In addition, the over flag is set to 11'' when more than 50 sheets of paper are sent to the paper refeed cassette (150), and the 0 paper jam flag, which indicates that the loaded capacity is nearly full, is set to the paper refeed cassette. When a paper jam is detected in (150), rl
, to indicate that a paper jam has occurred.

The step (5961) is to determine whether the composite copy mode has already been selected, and if it has not been selected, the step (5962) is to display L E
D (276) is turned on, the solenoid (162) is turned on in step (5963), and the solenoid (167) is turned off in step (S964) to switch to double-sided copy mode. If it is determined in step (5961) that the composite copy mode has already been selected, step (59
After confirming that the sheet number counter is '0'' in step 65), that is, if no paper has been fed into the paper refeed cassette (150) yet, the display L is displayed in step 5966.
Turn on E D (276) and step (5967)
Turn off the display L E D (278) and step (5
96B), turn on the solenoid (162), and step (
5969) to turn off the solenoid (167) and switch to double-sided copy mode.

Further, the routine after step (5970) is for selecting the composite copy mode, and step (5970)
When the on-edge of the composite copy select key (93) is confirmed in steps (5971) and (5972).

(5973) in the step (5951), (595
2) and (5953), and if YES in each case, display L E in step (5974).
Determine whether D (27B) is on. Display L E
If D (27g> is already on, this is the second key operation, so to cancel the composite copy mode, display it in step (5975), turn off E D (278), and step (5976). (5978) turns off the solenoids (162) and (167).If it is determined that the display LED (278) is off in the step (5974), the steps (5978) and (597)
9), the step (595B) in (5980),
(5959), make the same judgment as (5960),
If YES in each case, it is determined in step (5981) whether the display LED (276) is on. If the display LED (276) is off, that is, the double-sided copy mode is selected, the display LED (27B) is turned on in step (5982), and the display LED (27B) is turned on in step (598).
3), (5984) and solenoid (162), (1
67) and switch to composite copy mode. Also, even if the duplex mode has already been selected in step (5981), the number of sheets counter will be changed in step (5985).
If it is confirmed that the mode is "O", the mode is switched to composite copy mode. That is, in step (5986) the display L E
Turn on D <278>, turn off display L E D (276) in step (5987), and turn on display L E D (276) in step (5987).
), <5989) and solenoid (162), (16
7) Turn on.

Next, in step (5990), it is determined whether the manual feed tray detection switch <5W9) is on or not. If it is off, that is, if manual paper feeding is selected, step (599
1), (5992) displayed L E D (276),
(278) is turned off, steps (5993), (S
994) and solenoid (162).

(167) and switch to paper output tray mode.

Figure 78 shows the main routine steps (
5905), i.e.,
The paper refeed cassette (150) is located in the paper refeed device main body <131)
This shows the subroutine when extracted from.

First, when the off-edge of the paper refeed cassette detection sensor (SelO) is confirmed in step (51000), that is,
When it is confirmed that the paper refeed cassette (150) has been pulled out from the main body (131), the sheet number counter is reset to "O" in step <51001>, and the process returns to step (510).
02), if the displays LED (276) and (278) are blinking, the blinking is stopped. At the same time, set the over flag to "04" in step <51003), set the paper jam flag to "10" in step (51004), and set the paper jam flag to "10" in step (51004).
51005), the paper jam switching flag is reset to "rO".

Next, in step (51006), it is determined whether the motor (M6) is fully turned on. If the motor (M6) is not turned on, step (51007), (510
08) to turn off the display LED (276), (278), and step (51009), (510
10) to turn off the solenoids (162) and (167). On the other hand, if the motor (M6) is turned on, the switching flag is set to "rl" in step (51011), and the process returns to the main routine.

In other words, the solenoids (162) and (167) are activated only when the motor (M6) is turned off and no paper is being conveyed.
) and switch to output tray mode. this is,
When the motor (M6) turns on and switches to paper output tray mode while paper is being transported, the solenoid (162)
(167) is turned off, the switching claw (160), (16
5) may switch to the upper stage and damage the paper being conveyed. In the latter case, the switching flag is set to 11'' and the subroutine of the claw switching process described below allows the switching claws (160) and (165) to operate after the paper has passed (paper output tray mode). The request is to switch to

Figure 79 shows the main routine steps (CPU5).
5906) shows a subroutine for paper jam detection processing that can be executed.

First, in step (51020), the paper detection sensor (
Once the on-edge of Sall is confirmed, step (5) is confirmed.
1021) starts the paper jam timer (TV).

This paper jam timer (TV) is activated when the paper is detected by the sensor (Se
ll) to the paper jam detection sensor (Se1) installed in the reversing section.
2) is set to the time it takes to pass.

Therefore, in step (51022) this timer (TV)
Even if the end of the process is confirmed, if it is determined in step (51023) that the sensor (Se12) is still turned on, a paper jam such as paper wrapping around the reversing roller (176) may occur. Step (51)
In step 024), the paper jam switching flag is set to "1." In step (51025), the switching plug is set to 11. In step (51026), the paper jam flag is set to "1", and the process returns to the main routine.

Figure 80 shows the main routine steps (
5907) shows a subroutine of the nail switching process executed in step 5907).

First, in step (51030), the switching flag is set to "1".
", and if the off-edge of the paper detection sensor (Sell) is confirmed in step (51031), the switching flag is reset to "0" in step (51032), and steps (51033) and (51034)
) and turn off E D (276) and (278), as well as steps (51035) and (51036).
Turn off the solenoids (162) and (167) with . The timing of this switching is determined by the paper sensor (Sell).
) is set while the paper is being conveyed after passing through.

Next, in step (51037), it is determined whether the paper jam switching flag is "1". If it is "1", that is,
If a paper jam has occurred, the paper jam switching flag is reset to 10'' in step (5103g), and the motor (M6) is turned off in step (51039).

Figure 81 shows the main routine steps (CPU5).
5908), that is, the capacity over detection process executed in
A subroutine for detecting the loading amount of the paper refeed cassette (150) is shown.

First, in steps (51040) and (51041), it is determined whether the display LEDs (276) and (278) are on, that is, whether duplex copy mode or composite copy mode is selected, and the selected bamboo If not, return to the main routine. If either one is selected, it is determined in step (51042) whether the count value of the sheet number counter is larger than 70, and if it is smaller, step (5104) is performed.
In the present embodiment, the loading capacity of the paper refeed cassette (<150) reaches 70 sheets, and when it reaches 50 sheets, it is almost full. Preliminary indication [Display L E D (2
76) or (278) blinking]. Therefore, when it is determined in step (51044) that the loaded amount has reached 50 sheets, the over flag is set to rl in step (51045), and the display LED (276) is turned on in step (51046), i.e. , if it is confirmed that the duplex copy mode is selected, step (51
047) causes this display LED (276) to blink. In addition, the display LED (27
When it is confirmed that B) is on, that is, the composite copy mode is selected, this display L is confirmed in step (51049).
Make E D (278) blink.

On the other hand, if it is determined in step (51042) that the loaded amount has reached 70 sheets, the switching flag is set to "rl" in step (51043), and the switching claws (160) and (165) are operated after the paper passes. request processing (switching the output tray mode).

Figure 82 shows the main routine steps (CPU5).
5909) for processing odd-numbered originals.

If double-sided copying is performed from the last page when there is an odd number of originals, the final original (first page) will be a single-sided copy. Therefore, in such a case, this subroutine solves this problem by having the operator input in advance into the copying machine main body (1) that the number of originals is an odd number.

First, in step (51060) the display L E D (2
If it is determined that (76) or (278) is on, the odd number originals are displayed in step (SIQ61).
(285) is on or not. If it is turned on, that is, if the number of originals to be copied is an odd number, if it is determined in step (51062) that the copy is for the 1st jX document, the solenoid (162) is turned off in step (51063). , switch the paper feeding mode to the paper output tray mode. As a result, the paper on which the first FjX draft (last page) has been copied is discharged onto the paper discharge tray (145). Then, in step (51064), the first
When it is determined that this is the final copy of the original, the output tray paper detection sensor (S
e13) is off. If it is off, that is, when the paper is removed from the paper discharge tray (145), the solenoid (162) is turned on in step (51066), and thereafter paper is passed in the double-sided/composite copy mode.

FIG. 83 shows a subroutine for interrupt copy processing executed in step (5910) of (CPU 5).

First, at step (51070), an interrupt display (22
9) is on, step (5107
In step 1), it is determined whether the display L E D <276) or (27B) is on, and if it is on, that is, if either the duplex or composite copy mode is selected, step (
After confirming that all the paper before the interruption has been stored in the paper refeed cassette (150) in step (51072), the selected paper feeding mode (duplex/composite) is stored in the memory (F) in step (51073). and step (51074
), the display LEDs (276) and (278) are turned off, and in step (51075), the solenoid (162) is turned off, and the paper passing mode is switched to the paper discharge tray mode.

Next, in step (51076), an interrupt display (22
9) is turned off, step (5107
In step 7), determine whether the paper passing mode stored in memo 1 bar F) is double-sided copy mode or composite copy mode,
Displayed at step (51078) L E D (276)
, (278) is returned to the paper passing mode in which it was fully stored. Then, in step (51079), it is determined whether or not the output tray paper detection sensor (Se13) is off, and if it is off, that is, when the paper is removed from the output tray (145), step (51080) is performed. Turn on the solenoid (162), and then switch to paper feeding in double-sided/composite copy mode. Also, if it remains on,
Displayed at step (51081) L E D (276)
, (278) flashes to warn you.

[Hereinafter, gold and white] [Main part of the embodiment] In the above embodiment, when it is detected that manual paper feeding is selected by turning off the manual feed tray detection switch (SW9), [Step (5990) No. 3 See (C) in Figure 77, double-sided copy mode selection display L E
D (276) and composite copy mode display LED (278)
) and turn off [Step (5991).

(5992) Ko, solenoid (162), (167)
Turn off [Step (5993), (5994)
Cancel double-sided copy mode and composite copy mode.

If manual paper feeding is selected by the above control,
The double-sided copy mode or composite copy mode is automatically prohibited, and it is possible to prevent copy sheets that cannot be accommodated from being fed into the paper re-feed cassette (150).

Note that the means for detecting that manual paper feeding has been selected is a sensor (Se2) that detects that copy paper is inserted into the tray (36), instead of the manual paper tray detection switch (SW9). You may also use

As is clear from the above description, according to the present invention, there is provided a main body of a copying machine capable of manually feeding copy paper one sheet at a time, and a main body of a paper refeeding device that is removably attachable to the main body of the copying machine. a paper refeeding device that has a paper refeeding cassette that is detachable from the paper feeding section of the main body and can be installed in the paper discharging section of the copying machine main body or the non-sorting paper discharging section of the sorter;
means for detecting that manual paper feeding has been selected; means for selecting a paper feeding mode of the paper refeeding device; and when manual paper feeding is selected, double-sided paper feeding using the paper refeeding device; Since the control means for prohibiting selection of copy mode or composite copy mode is provided, when manual paper feeding is selected, duplex/composite copy mode is automatically prohibited, and copy paper that cannot be accommodated is transferred to the paper feeder again. This prevents problems such as paper jams from occurring and improves usability.

[Brief explanation of the drawing]

FIG. 1 is an internal configuration diagram showing the first embodiment, FIG. 2 is an internal configuration diagram showing the second embodiment, and FIG. 3 is an internal configuration diagram showing the third embodiment. Figure 4 is an internal configuration diagram of the paper refeeding device, Figure 5
The figure is a perspective view for explaining the attachment and detachment of the paper refeed cassette, Figure 6 is a perspective view of the paper refeed cassette, Figure 7 is a sectional view of the paper refeed cassette, and Figure 8 is the conveyance of the paper refeed device. FIG. 9 is an explanatory diagram of the path switching state, and FIG. 9 is an explanatory diagram of the operation of the switching pawl. FIG. 10 is an explanatory diagram of the binding margin FP mode, FIG. 11 is an explanatory diagram of the analog copy mode, and FIG. 12 is an explanatory diagram of the book FP mode. FIG. 13 is a plan view of the operation panel of the copying machine main body, FIG. 14 is an enlarged plan view of the display section,
FIG. 15 is a plan view of the operation panel of the sorter, FIG. 16 is a plan view of the operation panel of the sheet refeeding device, and FIG. 17 is a plan view of the copy paper selection mode operation panel. Figure 18 is a circuit diagram showing input/output to the microprocessor (CPUI) that controls the main body of the copying machine, and Figure 19 is a circuit diagram showing input/output to the expansion integrated circuit (ICI) that controls the three-stage paper feed unit. figure,
Figure 20 shows a microprocessor (CP) that controls the optical system.
Figure 21 is a circuit diagram showing input and output to the microprocessor (CPU3) that controls the automatic document feeder, and Figure 22 is a circuit diagram showing input and output to the microprocessor (CPU4) that controls the sorter. A circuit diagram showing the input and output of
Figure 23 shows the microprocessor (
FIG. 2 is a circuit diagram showing input/output to/from a CPU. Figure 24 and the following are flowcharts showing the control means, and Figures 24 to 5 are flowcharts showing the control means.
6 shows the control of the copying machine main body, FIGS. 57 to 59 show the control of the optical system, FIGS. 60 to 67 show the control of the automatic document feeder, and FIGS. 68 to 73. 74 shows the control of the sorter, and FIGS. 74 to 83 show the control of the paper refeeding device. (1)...Copier main body, (20)...Top paper feed slot, (
25)...Lower paper feed slot, (36)...Manual feed tray,
(100), (100a)-sorter, (130)...
・Paper refeeding device, (131)...Paper refeeding device main body, (1
50)...Refeed cassette, (275)...Double-sided copy mode select key, (276)...Double-sided copy mode display LED, (277)...Composite copy mode select key, (278)... ...Synthetic copy mode display LED. (CPUI), (CPU5)...Microprocessor, (5TS)...Manual feed tray detection switch.

Claims (1)

[Scope of Claims] 1. A copying machine main body that can manually feed copy paper one sheet at a time, and a refeeder that is detachable from the paper refeeding device main body and also detachable from the paper feeding section of the copying machine main body. a paper refeeding device having a paper cassette and capable of being installed in a paper ejection section of a copying machine main body or a non-sorted paper ejection section of a sorter; a means for detecting that manual paper feeding has been selected; and a means for detecting that manual paper feeding is selected; A means for selecting a paper feeding mode, and a control means for prohibiting selection of a duplex copy mode or a composite copy mode using a paper refeeding device when manual paper feeding is selected. A copying machine characterized by: