JP3967037B2 - Automatic document feeder, automatic document processing system, and operation method of automatic document feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic document feeder for an image processing apparatus such as a copying machine, a facsimile machine, or an image scanner, an automatic document processing system, and an operation method of the automatic document feeder, and more particularly, for taking out a jammed document. The present invention relates to an automatic document feeder having an opening / closing cover, an automatic document processing system, and an operation method of the automatic document feeder.
[0002]
[Prior art]
Image processing apparatuses such as copiers, facsimile machines, scanner apparatuses, and printer apparatuses are required to be faster and more multifunctional, and further space-saving is required. Space saving and downsizing of an automatic document feeder (hereinafter simply referred to as ADF) are further required.
[0003]
FIG. 12 is a simplified schematic diagram of an example of a prior art ADF. In FIG. 12, the ADF 106 is mounted on the image processing apparatus 101, and includes a document placement table 109, a document discharge table 118, a calling roller 110, a first conveyance roller pair 111 having a document separation function, and a second conveyance roller pair 113. A pair of paper discharge rollers 117, a document transport path 114A, 114B and 114C, an opening / closing cover 122 having a shaft hole 122H and a fixed shaft 122P.
[0004]
The fixed shaft 122P is arranged in parallel to the rotation shafts of the calling roller 110, the first conveyance roller pair 111 having a document separation function, the second conveyance roller pair 113, and the discharge roller pair 117. ) (Not shown). The opening / closing cover 122 rotates around the fixed shaft 122P and opens toward the left in FIG. The document placement table 109 holds the document bundle P1, and the document discharge table 118 is positioned below the document placement table 109. The document placement table 109 receives the documents sequentially supplied from the document placement table 109 one by one, and stores and stacks them.
[0005]
A document reading window 150 is opened in the conveyance path 114C, and the image processing apparatus 101 reads image information of a document conveyed through the conveyance path 114C via the window 150. The calling roller 110, the first transport roller pair 111, the second transport roller pair 113, and the paper discharge roller pair 117 include a transport path 114A through which a document supplied from the document placement table 109 is transported to the document discharge table 118, It is arranged along 114B and 114C.
[0006]
Here, the calling roller 110 pulls out one document from the document bundle P1 placed on the document placing table 109 and supplies it to the conveyance path 114A. The first conveyance roller pair 111, the second conveyance roller pair 113, and the discharge roller pair 117 convey the document to the document discharge table 118 through the conveyance paths 114B and 114C. A document being transferred from the document placing table 109 to the document discharge table 118 may be jammed on the transport path 114A, 114B or 114C, and the jammed document needs to be removed.
[0007]
When a document jam occurs in this way, the operator opens the opening / closing cover 122 to the left as shown by an arrow 122T in FIG. 12, and exposes the conveyance paths 114A and 114B to remove the jammed document. be able to. However, such an open / close cover 122 requires an extra space on the left side of the ADF 106, such as a space W2 shown in FIG. 12, when opened when removing a jammed document.
[0008]
Therefore, even though the width of the ADF 106 and the image processing apparatus 101 is W1 as shown in FIG. 12, in order to install the image processing apparatus 101 having the ADF 106 on the desk or on the floor, the total width W1 + W2 Space is required. Further, since the rotation pivots of the opening / closing cover 122 are close to each other, it is likely that the space margin on the lower front surface of the conveyance path 114B is too small to remove the jammed document.
[0009]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described problems, and allows the conveyance path and the like to be exposed without requiring an extra space, and ensures a sufficient work space for removing a jammed document. The present invention provides an automatic document feeder, a system and an operation method for the automatic document feeder with improved removal workability.
[0010]
[Means for Solving the Problems]
As means for solving the above-mentioned problems, an automatic document feeder according to the present invention includes a document placing means for placing a document in an automatic document feeder mounted on an image processing apparatus for supplying, transporting, and discharging documents. Document discharge means that is positioned below the document placement means and that stacks and stores the documents conveyed from the document placement means one by one, and a document guide that guides the documents from the document placement means to the document discharge means Means, a document conveying means for conveying documents one by one from the document placing means to the document discharge means along the document guide means, and an open / close covering and exposing the document guide means and the document conveying means Covering means; The device main body and the opening / closing covering means are connected to each other so that the opening / closing covering means can be opened and closed vertically and upwardly in the document conveying direction. A rotating connection means; A second lower end of the apparatus main body that is spaced apart from the rotation connecting means and connects the apparatus main body and the image processing apparatus so that the apparatus main body can be opened and closed above the image processing apparatus; A rotating connection means; It is provided with.
[0011]
An automatic document processing system according to the present invention includes a document placement table on which a document is placed, and a document discharge table that is positioned below the document placement table and stores the documents conveyed from the document placement table one by one. A document transport path for guiding a document from the document placement table to the document discharge table, and a document transport mechanism for transporting documents one by one from the document placement table to the document discharge table along the document transport path An open / close cover that covers and exposes the document transport path and the document transport mechanism; The device main body and the open / close cover are connected to each other so that the open / close cover can be opened and closed vertically and upward in the document transport direction. An automatic document feeder provided with a hinge member, an image processing device for reading and processing image information of a document conveyed by the document conveying mechanism of the automatic document feeder, The image processing device has a pivot shaft parallel to the hinge member and is disposed at a lower part of the back side of the apparatus main body so as to be spaced apart from the hinge member so that the automatic document feeder can be opened and closed upward. Connecting an image processing device And a second hinge member.
[0013]
This makes it possible to expose the conveyance path and the like without requiring extra installation space, as well as to secure a sufficient work space for removing jammed documents and improve the removal workability. A document processing system and an operation method of an automatic document feeder can be provided.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on the preferred embodiments of the present invention shown in the drawings.
[0015]
FIG. 1 is a simplified schematic front view of one embodiment of the present invention, and FIG. 2 is a left side view (View 1) of FIG. 1 and 2, an automatic document feeder (ADF) 206 is mounted on an image scanner 201 which is an example of the above-described image processing apparatus. The ADF 206 includes a document placement table 209, a document discharge table 218, an incoming roller 210, a first document transport roller pair 211, a second document transport roller pair 213, a document discharge roller pair 217, and document transport paths 214A, 214B and 214C. And an opening / closing cover 222, a fixed shaft 223, and a hinge member 270.
[0016]
The open / close cover 222 covers the first document conveyance roller pair 211, the second document conveyance roller pair 213, and the document conveyance paths 214A and 214B, and has an inverted L-shaped cross-sectional shape including an upper surface 222U and a side surface 222S. Further, the opening / closing cover 222 has two protrusions 222T1 and 222T2 formed with a shaft hole 222H on the back side thereof, and is fitted so as to be rotatable around the fixed shaft 223. The fixed shaft 223 is fixed to the main body 106F of the ADF 206 in a direction orthogonal to the rotation axis of the attracting roller 210, and functions as a rotation pivot of the opening / closing cover 222. As a result, the opening / closing cover 222 is pivoted upward as shown by the dotted line as the opening / closing cover 222A in the opened state in FIGS.
[0017]
In FIG. 2, the ADF 206 is connected to the image scanner 201 so as to be rotatable around a hinge member 270. The hinge member 270 is structured like a metal hinge on the door, and the hinge plate 270T1 is fixed to the image scanner 201, and the other hinge plate 270T2 is fixed to the back side of the ADF 206 with a fixing member such as a screw. The ADF 206 can be opened by, for example, turning upward by about 50 ° in the angle by lifting the main body bottom portion 206FB. Furthermore, since the shaft 270S of the hinge member 270 and the fixed shaft 223 are arranged in parallel, the opening / closing operation of the opening / closing cover 222 and the ADF 206 can be performed in the same direction, and the operator is less confused in these opening / closing operations. .
[0018]
The document table 209 holds the document bundle P1. The document delivery table 218 is located below the document placement table 209, and receives and accommodates the documents sequentially fed from the document placement table 209 one by one. The document conveyance path 214C has a document reading window 250 so that the image scanner 201 can read information of each document conveyed through the window 250. The feeding roller 210, the first transport roller pair 211, the second transport roller pair 213, and the paper discharge roller pair 217 are arranged along a document transport path including transport paths 214A, 214B, and 214C. The feeding roller 210 pulls out one document from the document bundle P1 on the document table 209, and sends this document to the first transport roller pair 211 via the document transport path 214A. The first conveyance roller pair 211, the second conveyance roller pair 213, and the discharge roller pair 217 sequentially transfer the document to the document discharge table 218 via the document transfer path 214B and the document transfer path 214C.
[0019]
The image scanner 201 has, for example, a line image sensor 280 using a charge coupled device (CCD), and the line image sensor 280 scans the document along a line in the width direction of the document for reading information. The width direction of the line image sensor 280, that is, the scanning direction is a direction perpendicular to the paper surface of FIG. 1, and the scanning width is indicated by a scanning start point 280X1 and a scanning end point 280X2 in FIG. The line image sensor 280 reads information for each line until the document reaches the tail line from the head line while the document is conveyed through the window 250.
[0020]
A document being transferred from the document placing table 209 to the document discharge table 218 may be jammed on the transport path 214A, 214B, or 214C. When a document jam occurs, the person operating the ADF opens the opening / closing cover 222 upward as shown by the dotted line 222A in FIG. 1 and FIG. 2 as the opening position of the opening / closing cover 222. be able to. As a result, the jammed document, the document conveyance paths 214A and 214B, the calling roller 210, the first conveyance roller pair 211, and the second conveyance roller pair 213 are exposed, and the operator can remove the jammed document. . As shown in FIGS. 1 and 2, the opening / closing cover 222 can be opened without using the extra space W2 required by the conventional one shown in FIG. In other words, the installation space of the ADF 206 does not exceed the width W1 and the depth D1 of the ADF 206 shown in FIGS. 1 and 2 without impairing the workability of the jamming original removing operation.
[0021]
As the hinge member of the open / close cover 222, as shown in FIG. 3, a metal hinge 242 that is often used for a door, a lid of a container, or the like can be used. The hinge 242 has two mounting plates 242T1 and mounting plates 242T2 that are bent at their ends and meshed with each other at their ends, and a pin (not shown) connects the two mounting plates 242T1 and 242T2. It is inserted into the bent portion of each mounting plate 242T1 and 242T2 so as to be connected and coupled. The mounting plate 242T1 is fixed to the opening / closing cover 222, and the mounting plate 242T2 is fixed to the back side of the main body 206F of the ADF 206 with a fastening material such as a rivet, for example.
[0022]
Further, the opening / closing cover 222 and the hinge member can be formed as an integral part as shown in FIG. The opening / closing cover 222 has a hinge portion 222N that functions as a hinge on the back side of the opening / closing cover 222. In order to mold such an integral part, for example, a plastic material such as polypropylene may be used in order to ensure durability that can be bent many times without causing cracks. In addition, as shown in FIG. 4, the integrally formed opening / closing cover 222 has two types, for example, polypropylene is used for the portion between 222N1 and 222N2, and acrylonitrile-butadiene-styrene is used for the other portions. It is also possible to mold with different plastic materials. According to this molding method, the manufacturing cost can be reduced. Reference numeral 206FS denotes a screw for connecting the opening / closing cover 222 and the hinge part 222N to the ADF body 206F.
[0023]
Furthermore, as shown in FIG. 5, the combination of the opening / closing cover 222 having the shaft hole 222A on the back side and the ADF main body 206F having the pin 206FP functions as a hinge member for opening and closing the opening / closing cover 222.
[0024]
FIG. 6 is a simplified schematic front view of another embodiment of the ADF of the present invention used in the copying machine 1 as an example of the image processing apparatus. The ADF 6 has a good internal structure between the ADF 6 and the copying machine 1. As you can see, it is not drawn to the scale of the actual machine, but is shown schematically. In FIG. 6, reference numeral 1 denotes a copying machine. The copying machine 1 includes a main body 1a, a slit glass 2, a contact glass 3, an exposure lamp 4, a mirror 5, and a document guide member 15. Further, the copying machine 1 includes various devices (not shown) such as a lens, an image reading device using a charge coupled device (CCD), a photosensitive drum, a laser writing device, a developing device, a copy paper transport mechanism, an image transfer device, and an image fixing device. It is what you have. The contact glass 3 has a size equal to or larger than the size of the maximum size document placed thereon. The slit glass 2 also functions as a guide member that guides a document conveyed in contact with or close to the slit glass 2. The width of the slit glass 2 in the document conveyance direction is the size of several lines read by the image reading apparatus.
[0025]
The image reading device of the copying machine 1 reads a radiation original and outputs an image signal in one of the following two modes. In the first reading mode, the exposure lamp 4 and the mirror 5 move together under the slit glass 2 and stop, and the optical image of the original on the slit glass 2 is imaged through the lens. Create an image on the reader. Thereafter, while the document is conveyed on the slit glass in the right direction in FIG. 6 at a speed determined by the ADF 6, the image reading device reads the image signal of the document and outputs it. When the leading edge of the document reaches the slit glass 2, for example, in order to record a copy image of the document on copy paper during image formation, the conveyance of the document is temporarily interrupted.
[0026]
In the second reading mode, the document is placed on the contact glass 3. Next, the exposure lamp 4 and the mirror 5 move below the contact glass 3 from the right end to the left end of the contact glass 3 in FIG. An optical image of the original is formed and read on the image reading device, and an image signal of the original is output.
[0027]
In accordance with the image signal obtained in any one of the above modes, the writing device exposes the uniformly charged photosensitive drum to form an electrostatic latent image corresponding to the image signal on the photosensitive drum. Thereafter, the electrostatic latent image is developed with toner by a developing device. The transfer device transfers the toner image on the photosensitive drum onto the copy paper supplied by the copy paper transport mechanism. Next, the copy paper transport mechanism transfers the copy paper on which the toner image has been transferred to the fixing device. The fixing device melts and fixes the toner image on the copy paper, and discharges it as a final copy image of the document to the outside of the copying machine.
[0028]
The ADF 6 is mounted on the upper surface of the copying machine 1 with a hinge member (not shown), for example, a hinge member such as a metal hinge shown in FIG. Here, the rotation axis of the hinge member is arranged in parallel with the surface of the contact glass 3 on the back side of the main body 1a, and the ADF 6 rotates around the hinge member so as to open the surfaces of the contact glass 3 and the slit glass 2. I can move. Therefore, in the second image reading mode, the operator of the ADF 6 can place the document on the contact glass 3 and open the ADF 6 to take it out. Further, in the first reading mode, the operator of the ADF 6 can open the ADF 6 in order to take out a document which is supplied for reading by the copying machine 1 and is jammed in the vicinity of the slit glass 2.
[0029]
In FIG. 6, the ADF 6 further has a document cover 8 including a cushion material 7 b with a white sheet 7 a facing the contact glass 3. When the ADF 6 is closed, the document cover 8 presses the document on the contact glass 3. The original may be a so-called sheet-like original or a book-like original, but the surface to be copied is in contact with the upper surface of the contact glass 3. When the original is smaller than the copy paper on which it is copied, the white sheet 7a prevents the portion of the copy paper that protrudes from the original from becoming black.
[0030]
7 and 8 are perspective views showing the outer shape of the ADF shown in FIG. 6, and show a state where the open / close cover is closed and a state where the cover is opened, respectively. As shown in FIGS. 7 and 8, the ADF 6 has a main cover 6 a and an opening / closing cover 22 which should be called a main body. The document is placed and stored on the document table 9 with the surface to be copied facing up. The document table 9 includes side fences 20a and 20b parallel to the direction in which a pair of documents is conveyed. The pair of side fences 20a and 20b are movable in a direction orthogonal to the document conveyance direction, and guides both sides of documents of different sizes. Therefore, the document is supplied into the ADF 6 without being distorted.
[0031]
Returning to FIG. 6, the ADF 6 includes the incoming roller 10, the first conveying roller 11, the reverse roller or separation roller 12, the second conveying roller pair 13, the white guide member 19, the third conveying roller 21, and the discharge roller pair. 17, a first transport path 14 and a second transport path 16. The incoming roller 10, the first conveyance roller 11, the reverse roller 12, the second conveyance roller pair 13 and the third conveyance roller 21 are arranged along the first conveyance path 14, and the discharge roller pair 17 is arranged along the second conveyance path 16. It is arranged along the exit.
[0032]
The feeding roller 10 is movable between a position indicated by a solid line and a position indicated by a dotted line in FIG. 6, and draws the uppermost document from the document bundle P having various thicknesses stacked on the document table 9. For example, the incoming roller 10 automatically reaches the position on the upper surface of the bundle of documents P in contact with the document by its own weight.
[0033]
The white guide member 19 and the slit glass 2 form a part of the first transport path 14 and guide the transported document. A gap between the white guide member 19 and the slit glass 2 is set to 2 mm, for example, and an optical image of the document is formed on the image reading device by a lens having a predetermined focal length. In addition, the white guide member 19 scatters and reflects light emitted from the exposure lamp 4 and hitting a portion not covered by the conveyed document. Thereby, even if the original is smaller than the copy paper, it is possible to prevent the portions other than the copy portion of the copy paper from becoming black.
[0034]
The third transport roller 21 is in contact with the guide member 15 of the copying machine 1, and the transport roller 21 sandwiches the document and transports the document to the second transport path 16. As shown in FIG. 6, the guide member 15 is positioned between the slit glass 2 and the contact glass 3, and its right end slightly enters the second conveyance path 16 so that the document smoothly enters the conveyance path 16. Has been made.
[0035]
In the first reading mode, when the copying operation is started, each document of the document bundle P on the document placing table 9 is supplied one by one and conveyed at a predetermined speed V1 by the document conveying mechanism. It is discharged onto the paper board 18 and stacked. First, the drawing roller 10 pulls out the uppermost document of the document bundle P on the document placing table 9 and feeds the document into the first conveying roller 11. The first conveyance roller 11 and the second conveyance roller pair 13 send the document to the third conveyance roller 21 at a predetermined speed V1.
[0036]
The peripheral speed V2 of the third transport roller 21 and the discharge roller pair 17 may be substantially the same as the peripheral speed V1 of the second transport roller 13. However, the peripheral speed V2 may be set to 101% of V1, for example, so that the document being conveyed is slack and does not flutter. The peripheral speed V2 of the third conveying roller 21 and the discharge roller pair 17 can be driven by a motor (not shown) via a torque control means so that an excessive tension is not applied to the document. The discharged document is stacked on the document discharge table 18 with the surface read by the slit glass 2 facing down.
[0037]
When a plurality of documents are pulled out from the document table 9 at the same time, the reverse roller 12 rotates in the clockwise direction, and only the topmost document in contact with the first conveyance roller 11 among the plurality of documents is changed to the first one. One of the documents fed into one conveyance path 14 and simultaneously drawn out is blocked. In other words, the reverse roller 12 functions as a document separator. The reverse roller 12 can be replaced with a fixed friction pad made of synthetic rubber or a cork sheet for blocking a document other than the top document of the document bundle P on the document table 9. .
[0038]
7 and 8, the open / close cover 22 is rotatably attached to the main body of the ADF 6 by a hinge member hidden inside the main cover 6a, for example, a hinge member as shown in FIG. The rotation axis of the hinge member is installed on the back side of the main body of the ADF 6 in a direction perpendicular to the rotation axis of the incoming roller 10 and substantially parallel to the upper surface of the contact glass 3. As shown in FIG. 8, the opening / closing cover 22 can be opened at an angle of 90 °, for example. When the opening / closing cover 22 is opened, the first transport roller 11, the reverse roller 12, the second transport roller pair 13 and the first transport path 14 are opened (exposed).
[0039]
For example, when the power is turned off, the document is wrinkled or curled, or the document is too thin, the document is in the middle of reaching the document discharge table 18 from the document table 9. May be clogged. When such a document jam occurs, the operator opens the opening / closing cover 22, and the document jammed from the entrance roller 10, the first transport roller 11, the reverse roller 12, the second transport roller pair 13 or the first transport path 14 portion. Can be taken out. In addition, since the hinge member of the opening / closing cover 22 is located on the back side (rear side) of the ADF 6, a sufficient working space for taking out a jammed document can be obtained on the left side of the first conveyance path 14. Good operability and workability can be achieved. Further, the installation space (floor area) occupied by the ADF 6 does not increase even when the opening / closing cover 22 is opened.
[0040]
Further, since the ADF 6 can be opened upward, it is possible to find a document jam around the slit glass 2 or the guide member 15, and the rotation direction for opening and closing the ADF 6 is substantially the opening and closing cover 22. Therefore, the operator can easily and easily carry out the operation of removing the document jam.
[0041]
In the second reading mode, the operator first opens the ADF 6 upward, places the copy surface of the sheet or book document facing the contact glass 3, then closes the ADF 6 and presses the document against the contact glass 3. To do. When the operator presses the start button, the above-described copying operation starts.
[0042]
9, 10, and 11 are schematic drawings showing a structure in which an ADF according to another embodiment of the present invention is mounted on an image scanner 201. This is similar to the embodiment shown in FIG. 1 and FIG. 2, and those having the same function are indicated by the same reference numerals, and description of those not required is omitted.
[0043]
The ADF 306 includes an opening / closing cover 222, a drawing roller 210, a first conveyance roller 311A, a reverse roller, that is, a separation roller 311B, a second conveyance roller 313B, a pinch roller 313A, and an upper guide plate 314A1 and a lower guide plate constituting the first conveyance path 314A. 314A2, a left guide plate 314B1, a right guide plate 314B2 and a driving device 225 that constitute the second transport path 314B.
[0044]
In this apparatus, the first conveying roller 311A, the pinch roller 313A, the upper guide plate 314A1, the left guide plate 314B1, and the driving device 225 are attached to the opening / closing cover 222 in order to further improve the workability of removing the jammed document. The feeding roller 210, the reverse roller, that is, the separation roller 311B, the second transport roller 313B, the lower guide plate 314A2, and the right guide plate 314B2 are attached to the main body frame of the ADF 306. The first transport roller 311A is rotated clockwise by a driving device 225 such as an electric motor, for example. As the drive mechanism, a gear mechanism connected to an electric motor built in the main body of the ADF 306 can also be used. FIG. 10 is a side view of the ADF 306 shown in FIG. 9 as viewed from the direction indicated by View 1, and shows a state in which the ADF 306 and the opening / closing cover 222 are opened at angles of 15 ° and 70 °, respectively. FIG. 11 is a front view of the ADF 306 shown in FIG. 9 and shows a state where both the ADF 306 and the opening / closing cover 222 are opened. As shown in FIGS. 9, 10, and 11, when the opening / closing cover 222 is closed, the pinch roller 313A is pressed against the second conveying roller 313B, and when the opening / closing cover 222 is opened, the pinch roller 313A and the upper guide plate 314A1 The left guide plate 314B1 and the driving device 225 are also opened. This makes it very easy to remove the document jammed around the first conveyance path 314A and the second conveyance path 314B.
[0045]
A guide plate 314C1 having a document reading window 250 is disposed along the conveyance path 314C and attached to the image scanner 201, and a guide plate 314C2 is attached to the ADF 306, and these constitute a conveyance path 314C. The ADF 306 is mounted on the image scanner 201 by a hinge member 270 so that the ADF 306 is opened at an angle of 15 °. Therefore, as shown in FIGS. 10 and 11, when the ADF 306 is opened, the guide plate 314C1 remains on the image scanner 201, and a relatively wide space is removed to remove the jammed document around the third conveyance path 314C. It can be secured.
[0046]
In the above-described illustrated embodiment, the document placing means and the document discharging means are shown in the form of a table (tray). However, the means is not limited to such a table and may be appropriately set as necessary. Shape can be adopted. Further, the document conveying path mainly composed of a guide plate is shown as the document guide means. However, a guide means using a belt other than the guide plate can be adopted, and other appropriate document guide means can be adopted. Furthermore, although various rollers (rollers) have been described as the document conveying means, rollers are simple and suitable as the conveying means, but other arbitrary conveying means such as a belt and a rotating cylinder may be employed. Further, the hinge member has been described as the rotation connecting means. However, the hinge member that is the rotation connecting means is not limited to the one using the so-called hinge itself, but various hinge mechanisms that perform the same function as the hinge or other rotation mechanisms. It is clear from the above description that the connection structure can be included.
The present invention is not limited to the embodiments shown in the drawings, and encompasses all forms resulting from the above description.
[0047]
【The invention's effect】
In the automatic document feeder (ADF) according to the present invention, the rotation shaft of the opening / closing cover is provided on the back side of the main body, and the rotation shaft is parallel to the rotation shaft of the main body. It can be opened within the range to expose each transport mechanism, and it can be used in a relatively small installation space while securing a sufficient work space to remove jammed documents, and also has the workability to eliminate document jams. Therefore, the image processing system using the ADF of the present invention, and the operation method of the ADF also have the same effect.
[Brief description of the drawings]
FIG. 1 is a simplified schematic front view of one embodiment of the present invention.
FIG. 2 is a left side view (View 1) of FIG.
FIG. 3 is a schematic side view of an example of a hinge part of an opening / closing cover applied to the present invention.
FIG. 4 is a schematic side view of another example of the hinge part of the opening / closing cover applied to the present invention.
FIG. 5 is a schematic side view of another example of the hinge part of the opening / closing cover applied to the present invention.
FIG. 6 is a simplified schematic front view of another embodiment of the present invention.
FIG. 7 is an external perspective view of the embodiment of FIG. 6, showing a state in which the open / close cover is closed.
8 is an external perspective view of the embodiment of FIG. 6, showing a state in which an opening / closing cover is opened.
FIG. 9 is a simplified schematic front view showing a state in which an opening / closing cover according to another embodiment of the present invention is closed.
FIG. 10 is a left side view (View 1) of FIG.
FIG. 11 is a simplified schematic front view of the state in which the opening / closing cover of FIG. 9 is opened.
FIG. 12 is a simplified schematic front view of an example of a conventional ADF.
[Explanation of symbols]
1, 201 Image processing device
6, 206, 306 Automatic document feeder (ADF)
9,209 Original table
10, 210 Call roller
11, 211, 311A First transfer roller
12, 311B Reverse roller
13, 213, 313 Second conveying roller pair
14, 214, 314 Transport path
17, 217 Output roller pair
18, 218 Output tray
22, 222 Open / close cover
242 First hinge member
270 Second hinge member

Claims (14)

In an automatic document feeder that is mounted on an image processing apparatus and supplies, conveys, and discharges documents,
A document placing means for placing a document;
Document discharge means positioned below the document placement means for stacking and storing the documents conveyed from the document placement means one by one;
Document guide means for guiding a document from the document placement means to the document discharge means;
Document conveying means for conveying the documents one by one from the document placing means to the document discharge means along the document guide means;
Open / close covering means for covering and exposing the original guide means and the original conveying means;
A rotation connecting means disposed at the upper part on the back side of the apparatus main body for connecting the apparatus main body and the opening / closing covering means so that the opening / closing covering means can be opened and closed vertically and upward in the document conveying direction ;
A second lower end of the apparatus main body that is spaced apart from the rotation connecting means and connects the apparatus main body and the image processing apparatus so that the apparatus main body can be opened and closed above the image processing apparatus; An automatic document feeder comprising: a rotation connecting means .   2. The automatic document feeder according to claim 1, wherein the document feeder has a document separator for feeding only the uppermost document among a plurality of documents conveyed from the document placing unit. The rotation axis of the second rotation connection means is made parallel to the rotation axis of the rotation connection means so that the apparatus main body rotates in substantially the same direction as the rotation direction of the opening / closing covering means. Item 2. The automatic document feeder according to Item 1 . 2. The automatic document feeder according to claim 1 , further comprising document coating means for covering a sheet document or a book document and pressing the sheet document on a contact glass of the document of the image processing apparatus.   2. The automatic document conveying device according to claim 1, wherein the document conveying means includes a plurality of document conveying tools, and at least one of the plurality of document conveying tools is attached to the opening / closing covering means.   2. The automatic document feeder according to claim 1, wherein the document guide means includes a plurality of document guide tools, and at least one document guide tool among the plurality of document guide tools is attached to the opening / closing covering means. In an automatic document feeder that is mounted on an image processing apparatus and supplies, conveys, and discharges documents,
A document placement table on which a document is placed;
A document discharge table that is positioned below the document table and stores the documents conveyed from the document table by stacking one by one;
A document conveyance path for guiding a document from the document placement table to the document discharge table;
A document transport mechanism for transporting documents one by one from the document placing table to the document discharge table along the document transport path;
An open / close cover that covers and exposes the document transport path and the document transport mechanism;
A hinge member that is disposed on the back side of the apparatus main body and connects the apparatus main body and the open / close cover so that the open / close cover can be opened and closed vertically and upward in the document conveying direction ;
A rotation axis parallel to the hinge member, disposed at a lower part of the apparatus main body at a distance from the hinge member, so that the apparatus main body can be opened and closed above the image processing apparatus; An automatic document feeder , comprising: a second hinge member connecting the image processing apparatus. The automatic document conveying device according to claim 7 , wherein the document conveying mechanism has a document separating roller for feeding only the uppermost document among a plurality of documents conveyed from the document placing table. 8. The automatic document feeder according to claim 7 , further comprising a document cover that covers a sheet document or a book document and presses the sheet document or a book document against a contact glass of the document of the image processing apparatus. The automatic document conveyance device according to claim 7 , wherein the document conveyance mechanism includes a plurality of document conveyance rollers, and at least one document conveyance roller of the plurality of document conveyance rollers is attached to the opening / closing cover. The automatic document conveying device according to claim 7 , wherein the document conveying path includes a plurality of document guide plates, and at least one document guide plate is attached to the opening / closing cover among the plurality of document guide plates. The automatic document feeder according to claim 7 , wherein the opening / closing cover is pivotally supported by a hinge member formed integrally with the opening / closing cover. A document placement table on which the document is placed, a document delivery table positioned below the document placement table for stacking and storing the documents conveyed from the document placement table one by one, and the document delivery from the document placement table A document transport path for guiding the document to the table, a document transport mechanism for transporting documents one by one from the document placement table to the document discharge table along the document transport path, the document transport path, and the document transport mechanism An opening / closing cover that covers and exposes the cover, and a hinge member that is disposed at an upper part on the back side of the apparatus main body and connects the apparatus main body and the opening / closing cover so that the opening / closing cover can be opened and closed vertically and upward in the document transport direction. An automatic document feeder provided with
An image processing apparatus for reading and processing image information of a document conveyed by the document conveying mechanism of the automatic document conveying device;
The image processing device has a pivot shaft parallel to the hinge member and is disposed at a lower part of the back side of the apparatus main body so as to be spaced apart from the hinge member so that the automatic document feeder can be opened and closed upward. An automatic document processing system comprising: a second hinge member that connects the image processing apparatus . The automatic document processing system according to claim 13 , wherein the document conveyance path includes a plurality of document guide plates, and at least one document guide plate among the plurality of document guide plates is attached to the image processing apparatus.

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