JP4604427B2 - Scanner device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a scanner device that scans a sheet-like reading medium, and more particularly to a scanner device that includes a feed roller at a position facing a scanner (image sensor).
[0002]
[Prior art]
In recent years, scanner devices (including composite processing devices such as printers with scanners) that scan sheet-like reading media have become widespread. This type of scanner device includes a scanning method in which the reading medium is fixed and a scanning method in which the scanning medium is conveyed while conveying the reading medium. In the latter, the reading medium is placed at a position opposite to the scanner. There is known one having a feed roller that conveys while being pressed against a scanner.
[0003]
[Problems to be solved by the invention]
However, in the apparatus including the above-described feed roller, the feed roller may directly contact the reading surface (for example, a glass surface) of the scanner after conveyance of the reading medium, and the driving load may be increased. In the case where it is necessary to scan to the end, it may be difficult to avoid the feed roller directly contacting the scanner reading surface. Therefore, there is a possibility that the drive source and transmission gear may be damaged due to overload, and in the case where a stepping motor is used as the drive source, the stepping motor will step out due to an increase in the load on the feed roller, causing unpleasant noise. There is a disadvantage of generating.
[0004]
An object of the present invention is to provide a feed roller that conveys a reading medium while pressing it against the scanner at a position facing the scanner, and automatically retracts the feed roller from the scanner in accordance with the driving load of the feed roller. As a result, even if the feed roller is in direct contact with the reading surface of the scanner and the drive load increases, the drive source and the transmission gear are damaged by the overload, or the stepping motor is stepped out and uncomfortable. It is an object of the present invention to provide a scanner device that can eliminate inconveniences such as generating abnormal noise.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a scanner device of the present invention includes a conveyance path that guides a sheet-like reading medium, a scanner that is arranged along the conveyance path, and that scans one surface of the reading medium, and is opposed to the scanner. A feed roller disposed at a position for conveying the reading medium; a rotation member for supporting the feed roller so as to be movable forward and backward; and a biasing force for biasing the rotation member toward the scanner. A member and a roller driving mechanism that transmits a roller driving force to the feed roller, and is configured using a planetary gear mechanism that moves the rotating member in a retracting direction according to a driving load of the feed roller. Is provided.
[0006]
In addition, the roller driving mechanism includes a feed roller gear that rotates integrally with the feed roller, a sun gear that rotates around the rotation fulcrum of the rotation member and is driven by the power of a drive source, and the rotation member And a planetary gear meshing with the feed roller gear and the sun gear. In this case, the roller driving mechanism can be constituted by a minimum number of members, and the number of parts can be reduced and the structure can be simplified.
[0007]
Further, the feed roller is configured to sandwich and convey the reading medium fed to the scanner side by the upstream side feed roller with the scanner, so that the peripheral speed thereof is faster than that of the upstream side feed roller. Are preferably driven. In this case, an appropriate tension can be applied to the reading medium to prevent scan failure and jamming due to the looseness of the reading medium, and the driving load of the feed roller is automatically controlled by the planetary gear mechanism. Therefore, there is no inconvenience that an excessive tension is applied to the reading medium or an overload acts on the driving source.
[0008]
Further, it is preferable that a print head for printing on the reading medium is provided on the upstream side of the scanner. In this case, a composite processing apparatus such as a check processing apparatus that scans the read medium after printing can be configured.
[0009]
Moreover, it is preferable that at least one pair of the feed rollers is provided on the feed roller support shaft, and the rotating member is disposed between the pair of feed rollers. In this case, since the pair of feed rollers can be moved back and forth substantially in parallel, inconveniences such as tilting of the reading medium due to variations in transport force can be avoided.
[0010]
Further, it is preferable that the rotating member includes a paper pressing guide that causes the reading medium to be along the reading surface of the scanner. In this case, since the floating of the reading medium between the pair of feed rollers is restricted, the scanning accuracy can be improved.
[0011]
Further, it is preferable that a solenoid for forcibly rotating the rotating member in the retracting direction is further provided, and the feeding roller and the scanner are opened and closed according to the driving of the solenoid. In this case, when the reading medium is fed between the feed roller and the scanner, the conveyance path is opened by driving the solenoid, so that the reading medium can be prevented from being caught by the feeding roller, and depending on the driving load. Since the transport path is opened and closed using a mechanism (such as a rotating member) for retracting the feed roller, the number of parts can be reduced and the structure can be simplified.
[0012]
The feeding roller, the rotating member, the roller driving mechanism, and the solenoid are provided in a scanner feeding unit separated from the scanner, and the entire scanner feeding unit is configured to be retractable from the scanner. preferable. In this case, by retracting the entire scanner feed unit, the space between the scanner and the feed roller can be widely opened, so that it is not allowed to remove jammed paper from the scanner part, but the scanner reading The surface can be easily cleaned.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a combined processing apparatus according to an embodiment of the present invention. As shown in this figure, the composite processing apparatus (scanner apparatus) 10 is covered with a resin cover 11, and an insertion port 12 for manually inserting a check (reading medium) P is provided on the front surface thereof. On the other hand, a discharge port 13 for discharging the check P is formed on the upper surface portion. Furthermore, the composite processing apparatus 10 of the present embodiment includes a roll paper storage unit (not shown) that stores roll paper in the rear part thereof, and the roll paper stored in the roll paper storage unit passes through the printing unit. Pulled out from the roll paper discharge port 14 on the upper surface of the apparatus.
[0014]
FIG. 2 is a side sectional view showing the internal structure of the combined processing apparatus. As shown in this figure, a conveyance path 15 of a check P from the insertion port 12 to the discharge port 13 is formed in the composite processing apparatus 10. The conveyance path 15 has the insertion port 12 side facing the horizontal direction, while the discharge port 13 side faces the vertical direction, and bends in an L shape in a side view. On the transport path 15, the paper trailing edge detector 16, MICR head 17, first feed roller pair 18, paper leading edge detector 19, paper positioning member 20, back printing head 21, second printing paper are sequentially arranged from the insertion port 12 side. A pair of feed rollers 22, a front print head 23, a paper discharge detector 24, and a scanner 25 are disposed, and a scanner feed roller (feed roller) 26 is provided at a position opposite to the scanner 25.
[0015]
The paper trailing edge detector 16, the paper leading edge detector 19, and the paper discharge detector 24 are configured by, for example, a transmissive or reflective photosensor, and the presence or absence of the check P is not contacted at each position of the conveyance path 15. To detect. The sheet positioning member 20 is used to temporarily stop the check P inserted from the insertion slot 12 at a predetermined position. For example, the sheet positioning member 20 protrudes into the transport path 15 according to driving of an actuator such as a solenoid, and the transport path. 15 is configured to be transformed into a posture of retreating from 15. The first feed roller pair 18 and the second feed roller pair 22 are each composed of a pair of roller members facing each other with the transport path 15 interposed therebetween, and transport the check P in both forward and reverse directions by driving one of the rollers. Further, one of the roller members is configured to be movable back and forth with respect to the other roller member, and opens and closes the transport path 15 by an advance / retreat operation according to driving of an actuator such as a solenoid.
[0016]
The MICR head 17 is for reading magnetic ink characters recorded on the surface of the check P, and the validity / invalidity of the check P is determined based on the read data of the MICR head 17. As shown in FIG. 3, the magnetic ink characters are recorded in the MICR recording area 27 on the surface of the check P, and the record data includes the account number of the check P and the like. A pressing member 17a that presses the check P against the MICR head 17 during a reading operation is provided at a position opposite to the MICR head 17, but the pressing member 17a is normally retracted from the MICR head 17 and the conveyance path 15 is opened.
[0017]
The front print head 23 is for printing a written item such as a payee, a date, and an amount of money on the surface of the check P, and the written item is printed in a written region 28 shown in FIG. The front print head 23 is a serial print head supported by a carriage, and realizes dot matrix printing in one or more columns while moving in the width direction of the check P. In the present embodiment, a dot impact type print head that transfers the ink on the ink ribbon to the check P is employed as the front print head 23, but other types of print heads may be employed.
[0018]
The back print head 21 is for printing the endorsement items necessary for the shop side such as the shopper's authentication number, date, amount of money used, etc. on the back side of the check P. This endorsement item is shown in FIG. Printed in the endorsement area 29. The back print head 21 is of a shuttle type and includes a plurality of heads with a predetermined interval in the width direction of the check P, and one or a plurality of rows of dot matrix printing is performed by moving the head within the interval width. Realize. In this embodiment, a dot impact type print head that transfers the ink on the ink ribbon to the check P is employed as the back print head 21, but other types of print heads may be employed.
[0019]
The scanner 25 is for scanning the surface of the printed check P. The scanned image data is compressed and stored in a host computer and used for electronic settlement. In the present embodiment, a contact image sensor (CIS) is employed as the scanner 25, and the scan operation is performed with the check P in close contact with the reading surface 25a. The scanner feed roller 26 is for conveying the check P during the scanning operation, and conveys the check P to the discharge port 13 side while pressing the check P against the reading surface 25a of the scanner 25.
[0020]
FIG. 4 is a side view showing the roller retracting mechanism, and FIG. 5 is a plan view showing the roller retracting mechanism. As shown in these drawings, a pair of scanner feed rollers 26 are provided on the roller support shaft 30 at a predetermined interval. Both end portions of the roller support shaft 30 are guided so as to be movable back and forth along the guide grooves 31, and an intermediate portion is supported by a roller retracting mechanism 32 described later. The roller retracting mechanism 32 is configured to pull the roller support shaft 30 backward in accordance with the drive of the scanner feed roller solenoid 33, and accordingly, the scanner feed roller 26 is retracted from the scanner 25, and the transport path 15 is be opened. That is, during the non-scanning operation, the scanner feed roller 26 is in the retracted position, and the check P is not caught on the scanner feed roller 26. Further, during the scanning operation, after the check P is conveyed to the scan start position by the first feed roller pair 18 and the second feed roller pair 22, the retraction of the scanner feed roller 26 is released and the check P is transferred to the scanner 25. In this state, the scanner feed roller 26 is driven to carry the check P.
[0021]
The roller retracting mechanism 32 rotatably supports the roller support shaft 30, and presses and moves the presser lever 34 toward the scanner 25 side. A presser spring (biasing member) 35 and a scanner feed roller solenoid 33 for retracting the presser lever 34 against the biasing force of the presser spring 35 are provided. The presser lever 34 is a rotating member that can rotate back and forth with the rotating support shaft 34a as a fulcrum, and supports the roller support shaft 30 between the pair of left and right scanner feed rollers 26 in a rotatable manner. Accordingly, the pair of scanner feed rollers 26 can be biased substantially evenly by the single presser spring 35 instead of allowing the pair of scanner feed rollers 26 to be moved back and forth substantially in parallel with the scanner 25. As a result, the conveyance force varies. This avoids inconveniences such as the check P tilting. Further, a paper press guide 34b for bringing the check P along the reading surface 25a of the scanner 25 is integrally formed at the front end portion of the presser lever 34, and the paper press guide 34b is provided between the left and right scanner feed rollers 26. The float of the check P is restricted.
[0022]
The scanner feed roller solenoid 33 includes a drive shaft 33a that immerses backward when energized. A pin 33b facing in the left-right direction is provided at the tip of the drive shaft 33a. The left and right ends of the pin 33b are loosely fitted in a pair of left and right grooves 34c formed on the presser lever 34 so as to face in the vertical direction, and smoothly connect the linear motion of the drive shaft 22a and the circular motion of the presser lever 34. It is out.
[0023]
FIG. 6 is a side sectional view of the main part showing the roller driving mechanism, FIG. 7 is a perspective view showing the roller driving mechanism in the normal state, and FIG. 8 is a perspective view showing the roller driving mechanism in the presser lever retracted state. As shown in these drawings, the scanner feed roller 26 is driven by a roller driving mechanism 36. The roller drive mechanism 36 includes a scanner feed motor 37, an intermediate gear 38, a sun gear 39, a planetary gear 40, and a feed roller gear 41. The feed roller gear 41 is a roller support shaft 30 between a pair of scanner feed rollers 26. Are integrally provided. The scanner feed motor 37 is a stepping motor and is provided in a scanner feed unit 42 described later. The intermediate gear 38 is configured integrally with a first gear portion 38 a that meshes with the pinion gear 37 a of the scanner feed motor 37 and a second gear portion 38 b that meshes with the first gear portion 39 a of the sun gear 39. It is supported by the scanner feed unit 42 via the gear shaft 38c. The sun gear 39 is configured integrally with a first gear portion 39a that meshes with the second gear portion 38b of the intermediate gear 38 and a second gear portion 39b that meshes with the first gear portion 40a of the planetary gear 40. And supported by the scanner feed unit 42 via the gear shaft 39c. The planetary gear 40 is configured integrally with a first gear portion 40a that meshes with the second gear portion 39b of the sun gear 39 and a second gear portion 40b that meshes with the feed roller gear 41, via a gear shaft 40c. And is supported by the presser lever 34.
[0024]
FIG. 9 is an explanatory diagram of the operation of the roller driving mechanism. As shown in this figure, the gear shaft 39 c of the sun gear 39 is disposed in the vicinity of the rotation fulcrum of the presser lever 34. Thereby, a planetary gear mechanism in which the planetary gear 40 is movable along the outer periphery of the sun gear 39 is configured. As shown in FIG. 9A, during the scanning operation, the sun gear 39 rotates in the direction of arrow a as the scanner feed motor 37 is driven. The scanner feed roller 26 is urged toward the scanner 25 (in the direction of arrow b) by a presser spring 35, and the check P is moved upward by the driving force transmitted through the sun gear 39, the planetary gear 40 and the feed roller gear 41. Transport. At this time, the load acting on the scanner feed roller 26 is relatively small because of the frictional resistance between the check P and the scanner 25. As shown in FIG. 9B, when the conveyance of the check P is completed and the scanner feed roller 26 comes into direct contact with the reading surface 25a of the scanner 25, the load acting on the scanner feed roller 26 is the same as that of the scanner feed roller 26. It becomes frictional resistance with the scanner 25 and increases rapidly. At this time, reaction forces in the direction of the arrow c and the direction of the arrow d act on the planetary gear 40, and accordingly, a part of the driving force of the sun gear 39 is retracted to the gear shaft 40 c of the planetary gear 40. (Vector component in the direction of arrow e consisting of the resultant force of the reaction force in the direction of arrow c and the reaction force in the direction of arrow d). Then, as shown in FIG. 9C, when the retracting operation force e is applied to the gear shaft 40c of the planetary gear 40, the presser lever 34 rotates in the retracting direction against the biasing force of the presser spring 35, Along with this, the pressing force of the scanner feed roller 26 decreases, and the drive load of the scanner feed roller 26 is reduced. That is, the scanner feed roller 26 can be automatically retracted from the scanner 25 in accordance with the driving load of the scanner feed roller 26, so that the scanner feed roller 26 directly contacts the reading surface 25a of the scanner 25, Even if the driving load increases, problems such as damage to the scanner feed motor 37 and the transmission gear due to overload, and out of order generation of unpleasant noise due to the scanner feed motor 37 stepping out can be solved. The relationship between the driving load of the scanner feed roller 26 and the retracting force of the presser lever 34 is adjusted based on the reduction ratio settings of the sun gear 39, the planetary gear 40, and the feed roller gear 41.
[0025]
FIG. 10 is a schematic side view of the inside of the combined processing apparatus showing the scanning operation. As shown in this figure, during the scanning operation, after the check P fed to the scanner 25 side by the second feed roller pair 22 is sandwiched between the scanner 25 and the scanner feed roller 26, the second feed roller The pair 22 and the scanner feed roller 26 are simultaneously driven upward. At this time, the scanner feed roller 26 is driven so that its peripheral speed is faster than that of the second feed roller pair 22. As a result, an appropriate tension is applied to the check P, and the occurrence of scan defects and jams due to the looseness of the check P is prevented. In addition, since the driving load of the scanner feed roller 26 is automatically controlled as described above, it is possible to avoid the disadvantage that an excessive tension is applied to the check P and an overload acts on the scanner feed motor 37.
[0026]
FIG. 11 is a schematic side view of the inside of the combined processing apparatus showing the retracting structure of the scanner feeding unit. As shown in this figure, a scanner feed unit 42 separated from the scanner 25 is configured at a position facing the scanner 25. The scanner feeding unit 42 includes a scanner feeding roller 26, a roller retracting mechanism 32, a roller driving mechanism 36, and the like, and is rotatably supported inside the printer via a unit rotating support shaft 42a. When the entire scanner feed unit 42 is retracted and rotated backward (up to 90 ° in this embodiment) with the unit rotation support shaft 42a as a fulcrum, the scanner feed roller 26 and the roller retract mechanism 32 are largely retracted from the scanner 25, and the scanner 25 and the scanner feed roller 26 are widely opened. This facilitates removal of jammed paper at the scanner 25 site and cleaning of the reading surface 25a. The front surface of the scanner feed unit 42 is provided with a platen 23a disposed at a position facing the front print head 23 and one roller member 22a constituting the second feed roller pair 22, and the scanner feed unit When the whole 42 is retracted and rotated backward, the platen 23a and the roller member 22a are also retracted integrally, and it is easy to remove jammed paper at the front print head 23 site and the second feed roller pair 22 site.
[0027]
As described above, according to the present embodiment, the combined processing apparatus 10 includes the conveyance path 15 that guides the sheet-like check P, and the scanner 25 that is disposed along the conveyance path 15 and scans one surface of the check P. The scanner feed roller 26 which is disposed at a position opposite to the scanner 25 and conveys the check P, the presser lever 34 which supports the scanner feed roller 26 so as to be movable back and forth with respect to the scanner 25, and the presser lever 34 are connected to the scanner 25. And a roller driving mechanism 36 for transmitting a roller driving force to the scanner feeding roller 26. The roller driving mechanism 36 further corresponds to the driving load of the scanner feeding roller 26. And a planetary gear mechanism that moves the presser lever 34 in the retracting direction. In other words, the scanner feed roller 26 that automatically feeds the check P against the scanner 25 at a position facing the scanner 25 is provided, and the scanner feed roller 26 is automatically moved from the scanner 25 according to the driving load of the scanner feed roller 26. As a result, even if the scanner feed roller 26 is in direct contact with the reading surface 25a of the scanner 25 and the drive load increases, the scanner feed motor 37 and gears are caused by overload. Inconveniences such as breakage and generation of an unpleasant noise due to the step-out of the scanner feed motor 37 can be solved.
The roller drive mechanism 36 includes a feed roller gear 41 that rotates integrally with the scanner feed roller 26, and a sun gear 39 that rotates with the power of the scanner feed motor 37 around the rotation fulcrum of the presser lever 34. Since the press lever 34 is rotatably provided and includes a planetary gear 40 that meshes with the feed roller gear 41 and the sun gear 39, the roller drive mechanism 36 is configured with a minimum number of members, and the number of parts is reduced. In addition, the structure can be simplified.
[0028]
The scanner feed roller 26 sandwiches and conveys the check P, which is fed to the scanner 25 side by the second feed roller pair 22, with the scanner 25, and its peripheral speed is higher than that of the second feed roller pair 22. Because it is driven to be faster, it can apply appropriate tension to the check P to prevent scan failure and jamming due to the check P slack, and the driving load of the scanner feed roller is automatically controlled by the planetary gear mechanism. Therefore, there is no inconvenience that an excessive tension is applied to the check P and an overload acts on the scanner feeding motor 37.
[0029]
In addition, a pair of scanner feed rollers 26 is provided on the roller support shaft 30 and a presser lever 34 is disposed between the pair of scanner feed rollers 26. Therefore, the pair of scanner feed rollers 26 can be moved back and forth substantially in parallel. As a result, it is possible to avoid inconveniences such as the check P tilting due to variations in the conveying force.
[0030]
Further, since the presser lever 34 includes a paper presser guide 34b for bringing the check P along the reading surface 25a of the scanner 25, it is possible to restrict the float of the check P between the pair of scanner feed rollers 26 and improve the scanning accuracy. it can.
[0031]
Further, a scanner feed roller solenoid 33 for forcibly turning the presser lever 34 in the retracting direction is further provided, and the scanner feed roller 26 and the scanner 25 are opened and closed according to the drive of the scanner feed roller solenoid 33. When the check P is fed between the scanner feed roller 26 and the scanner 25, the carriage P is opened by driving the scanner feed roller solenoid 33, thereby preventing the check P from being caught on the scanner feed roller 26. In addition, since the transport path 15 is opened and closed using a mechanism for retracting the scanner feed roller 26 according to the driving load, the number of parts can be reduced and the structure can be simplified.
[0032]
The scanner feed roller 26, the presser lever 34, the roller drive mechanism 36 and the scanner feed roller solenoid 33 are provided in a scanner feed unit 42 separated from the scanner 25, and the entire scanner feed unit 42 is retracted from the scanner 25. Since the entire scanner feeding unit 42 is retracted, the space between the scanner 25 and the scanner feeding roller 26 can be widely opened, and as a result, the jammed paper can be easily removed from the scanner 25 portion. In addition, the reading surface 25a of the scanner 25 can be easily cleaned.
[0033]
As mentioned above, although one embodiment of the present invention has been described with reference to the drawings, the present invention is not limited to the matters shown in the embodiment, and the description of the claims and the detailed description of the invention, as well as the well-known technology. Based on the above, a range in which those skilled in the art can make changes and applications thereof is included. For example, in the above-described embodiment, the composite processing apparatus provided with the scanner is illustrated, but it goes without saying that the scanner apparatus may exclusively perform scanning processing.
[0034]
【The invention's effect】
As described above, according to the present invention, the feed roller that automatically feeds the reading medium against the scanner is provided at the position facing the scanner, and the feed roller is automatically moved from the scanner according to the driving load of the feed roller. As a result, even if the feed roller comes into direct contact with the reading surface of the scanner and the drive load increases, the drive source and transmission gear are damaged by the overload, or the stepping motor is stepped out. Inconvenience such as generation of unpleasant noise can be eliminated.
[Brief description of the drawings]
FIG. 1 is a perspective view of a combined processing apparatus.
FIG. 2 is a side sectional view showing the internal structure of the combined processing apparatus.
FIG. 3 is a schematic view of a check.
FIG. 4 is a side view showing a roller retracting mechanism.
FIG. 5 is a plan view showing a roller retracting mechanism.
FIG. 6 is a cross-sectional side view of a main part showing a roller driving mechanism.
FIG. 7 is a perspective view showing a roller driving mechanism in a normal state.
FIG. 8 is a perspective view showing a roller driving mechanism in a presser lever retracted state.
FIG. 9 is an explanatory diagram of the operation of the roller driving mechanism.
FIG. 10 is a schematic side view of the inside of the combined processing apparatus showing a scanning operation.
FIG. 11 is a schematic side view of the inside of the combined processing apparatus showing the retracting structure of the scanner feeding unit.
[Explanation of symbols]
P check
10 Combined processing equipment
15 Transport route
17 MICR head
18 First feed roller pair
21 Back print head
22 Second feed roller pair
23 Front print head
25 Scanner
26 Scanner feed roller
30 Roller spindle
32 Roller retracting mechanism
33 Solenoid for scanner feed roller
34 Presser lever
34a Rotating spindle
34b Paper presser guide
35 Presser spring
36 Roller drive mechanism
37 Scanner feed motor
39 sun gear
40 planetary gear
41 Feed roller gear
42 Scanner feed unit

Claims (7)

A conveyance path for guiding a sheet-like reading medium;
A scanner that is arranged along the transport path and scans one side of the reading medium;
A feed roller disposed at a position facing the scanner and transporting the reading medium;
A rotating member that supports the feed roller so as to be movable forward and backward with respect to the scanner;
A biasing member that biases the rotating member toward the scanner;
A roller driving mechanism that transmits a roller driving force to the feed roller, and is configured using a planetary gear mechanism that moves the rotating member in a retracting direction in accordance with a driving load of the feed roller. ,
The roller driving mechanism is
A feed roller gear that rotates integrally with the feed roller;
A sun gear that rotates around the rotation fulcrum of the rotation member and rotates with the power of the drive source,
A planetary gear that is rotatably provided on the rotating member and meshes with the feed roller gear and the sun gear;
Scanner and wherein the Rukoto to have a. The feed roller sandwiches and conveys the reading medium fed to the scanner side by the upstream feed roller with the scanner, and is driven so that its peripheral speed is higher than that of the upstream feed roller. The scanner device according to claim 1 , wherein: Upstream of the scanner, the scanner device according to any one of claims 1-2, characterized in that the print head for printing on the reading medium is provided. The feed roller is at least provided a pair provided on the feed roller shaft, a scanner device according to any one of claims 1 to 3, characterized in that said rotating member between the pair of feed rollers is disposed. The rotary member includes a scanner device according to any one of claims 1-4, characterized in that it comprises a paper holding guide be along the reading medium to the reading surface of the scanner. Further comprising a solenoid to force rotating the rotating member to the retracted direction, it claims 1-5 in which between the feed roller and the scanner in accordance with the driving of the solenoid, characterized in that it is opened and closed The scanner device described in 1. The feed roller, the rotation member, the roller drive mechanism, and the solenoid are provided in a scanner feed unit separated from the scanner, and the entire scanner feed unit is configured to be retractable from the scanner. The scanner device according to any one of claims 1 to 6 .

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