JP6726024B2 - Sheet transport device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet conveying device used in a check processing device for reading an image of a document such as securities such as bills and checks and magnetic ink characters printed on bills and checks.

Conventionally, bills and checks brought into financial institutions such as banks are automatically sorted using a device that takes images of both sides of the check at each bank and reads the printed magnetic ink characters (MICR characters). It is tabulated and brought to the clearing house.

In recent years, it is possible to read both image information printed on both sides of bills and checks and magnetic ink character information in order to improve the work efficiency before bringing it to the bill clearinghouse. Check processing devices have been put to practical use.

It is necessary for the check processing device to accurately read image information and magnetic ink character information, and a check processing device such as the invention disclosed in Patent Document 1 has been proposed.

JP, 2013-70225, A

In order to accurately read image information and magnetic ink character information in the above-mentioned check processing apparatus, it is necessary to accurately separate a sheet bundle of a plurality of bills/checks and convey the sheet bundle. .. Therefore, a separation mechanism is provided to stop the second and subsequent sheets from being conveyed at the same time.

As a mechanism for separating sheets, a roller composed of a feed roller that rotates in the sheet conveying direction and a separation roller that is arranged on the opposite side of the feed roller across the conveying path and that rotates in a direction opposite to the sheet conveying direction. Pairs are known. However, there is a risk that a sheet with bad wrinkles and folds will be caught and pushed back by the separation roller before it enters the nip between the separation roller and the feed roller, and conveyance will stop at the separation section. ..

Therefore, it is an object of the present invention to provide a sheet conveying device having a separating mechanism capable of easily adjusting the separating load so as to obtain an optimum separating load.

In order to achieve the above object, the sheet conveying device of the present invention,
A sheet conveying device,
A housing,
A pair of rotating bodies arranged in the housing and capable of separating and transporting sheets,
Holding means for supporting any one of the pair of rotating bodies with a supporting shaft,
An adjusting piece provided so as to be movable in contact with the holding means,
Adjusting means for moving the adjusting piece in a direction in which a force is exerted on the holding means,
The holding means is rotatably supported by a rotation shaft portion provided between the support shaft and the contact position of the adjustment piece,
By the adjustment means, Ri adjustable der distance between the axes of the pair of rotating bodies,
The sheet conveying device further includes
Urging means for urging the holding means toward the adjustment piece,
Second adjusting means for displacing the holding means in a direction of increasing the inter-axis distance against the urging force of the urging means,
A cover member for covering the adjusting means,
The second adjusting means rotatably supports the cover member .

According to the present invention, the separation load can be adjusted according to the state of the sheet to be conveyed.

1 is an overall internal configuration diagram of a sheet conveying device according to an embodiment of the present invention. 1 is an overall external perspective view of a sheet conveying device according to an embodiment of the present invention. FIG. 3 is another overall perspective view of the sheet conveying device according to the embodiment of the present invention. FIG. 3 is an enlarged view of a feed roller and a separation roller of the sheet conveying device according to the embodiment of the present invention. FIG. 3 is an enlarged view of the inter-axis adjustment mechanism of the sheet conveying device according to the embodiment of the present invention. FIG. 3 is a three-sided view of the inter-axis adjustment mechanism of the sheet conveying device according to the embodiment of the present invention. FIG. 3 is an enlarged perspective view of the sheet conveyance device according to the embodiment of the present invention with the adjustment window cover open. FIG. 3 is a top view of a drive unit of the inter-axis adjustment mechanism of the sheet conveying device according to the embodiment of the present invention. FIG. 4 is a diagram showing a positional relationship between a T-shaped hinge and a roller holding member of the sheet conveying device according to the embodiment of the present invention. FIG. 3 is an enlarged perspective view of a state in which the adjustment window cover of the sheet conveying device according to the embodiment of the present invention is lowered. FIG. 3 is a conceptual diagram showing a correlation between an adjustment window cover and an inclined surface of the sheet conveying device according to the embodiment of the present invention. FIG. 3 is an enlarged view of an inter-axis adjustment mechanism at the time of separation and at the time of non-separation of the sheet conveying device according to the embodiment of the present invention. FIG. 3 is an enlarged view of the vicinity of the imprinter of the sheet conveying device according to the embodiment of the present invention.

(First embodiment)
Hereinafter, an embodiment of a sheet conveying device according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows the entire internal configuration of a sheet conveying apparatus 100 to which this embodiment is applied.

The sheet conveying device 100 separates a bundle S′ of sheets S to be processed, which is represented by a bill or a check, stacked on the hopper 2, into the sheet conveying path 7 by separating them one by one in the conveying direction. A sheet feed roller 4, a feed roller 5, a separation roller 6 and a sheet feed pressing member 3 for pressing the sheet bundle S′ against the sheet feed roller 4, and functional units in which the sheet S is arranged inside the apparatus. 7, a registration roller 9a, a registration driven roller 9b, a first transfer roller 13a, first transfer driven rollers 13b and 13c, a second transfer roller 14a, and second transfer driven rollers 14b and 14c. It also has a paper discharge roller 17a, a paper discharge driven roller 17b, and a motor (not shown) that drives these roller groups.

A controller unit that controls the entire apparatus including these components and communicates with a host apparatus such as a host computer (not shown) connected by an interface cable is provided.

By reading the image information on both sides of the sheet S and converting the read information into digital signal data, the information can be easily managed and operated by a computer, and the magnetic signal based on the magnetic ink character information of the sheet S is imaged. It is possible to read together with information, and it is possible to perform printing to add arbitrary information such as date and processing contents to the sheet S before reading the image information. In addition to the sheet S, there is thickness and hardness. An image of a card such as an ID card can be read while being conveyed using the image reading sensor 30, and magnetic information recorded on the magnetic stripe of the card C such as a driver's license or an ID card can be read. Is.

Therefore, as a reading unit of the image of the sheet conveying apparatus 100, an image reading sensor 30 including a charge coupled device (CCD) or a contact image sensor (CIS), and a permanent magnet 8 for making the magnetic ink magnetic. And a magnetic head 12 for conveying the sheet S in a character string direction of characters (hereinafter, MICR characters) using magnetic ink to read the magnetism of magnetized MICR characters and transmitting the MICR character data read by the controller unit. , A magnetic signal reading unit for magnetic ink character information composed of an opposed roller 12a for pressing the sheet S against the magnetic head 12 in order to more accurately read the character information, the imprinter 15, the power button on the front side, and the processing of the sheet S. An operator operates an operation panel 60 consisting of a start button, a card insertion slot 23 for inserting one card when reading a card, a card feeding roller 25, and a name for the processing system automatically For input, a magnetic swipe reader 40 is provided as shown in FIGS.

The magnetic swipe reader 40 includes a guide plate arranged to face each other with a gap corresponding to the thickness of the card, a magnetic head arranged on either one of the guide plates, and a card on the other side of the guide plate as a magnetic head. It is composed of a pressing member 3 to be pressed and a bottom guide which guides the bottom of the card as a reference.

By passing the card between the guide plates along the bottom guide, the magnetic stripe of the card is brought into contact with and slides on the magnetic head, the magnetic information recorded on the magnetic stripe of the card is read, and the signal related to the magnetic information is read. To generate. Therefore, a card slide port 40a is provided as a gap corresponding to the card thickness.

Further, the sheet conveying apparatus 100 has a tray 1 for supporting the sheet bundle S′ placed on the hopper 2 before feeding and the sheet bundle S′ placed on the sheet discharge stacker 21 after the operation. doing.

The tray 1 is rotatably supported on the front surface of the sheet conveying apparatus 100, and is housed in the front surface of the main body casing to cover the front surface of the apparatus when the sheet conveying apparatus 100 is not used, as shown in FIG. As shown in FIG. 3, when the sheet conveying apparatus 100 is used, the sheet conveying apparatus 100 is rotated and deployed on the front surface of the apparatus. The tray 1 is provided with a placement surface of a hopper 2 provided on the sheet conveying apparatus 100 for placing a sheet bundle S′ before feeding and a placement surface of a sheet discharge stacker 21 for placing a sheet bundle after feeding. A mounting surface that is substantially the same surface is configured. The stacking surface has a function of holding the lower surface of the rear end of the sheet S stacked on the hopper 2 and the lower surface of the front end of the sheet S discharged to the discharge stacker 21 after the reading of the image image and the magnetic ink printing characters. ing.

The operation and operation of the sheet conveying device will be specifically described below. When the sheet S is placed on the hopper 2, the sheet S is recognized by the stacking detection sensor 2a mounted on the hopper 2.

In this state, when the operator presses the start button in the operation panel 60 or directs it from a host device such as the above-mentioned host computer, a read start signal is transmitted from the host computer etc. to the controller unit, and a motor (not shown) is used. The paper feed pressing member 3 is driven to press the sheet S against the paper feed roller 4. At the same time when the paper feed pressing member 3 is driven, the paper feed roller 4 rotates, and when the sheet S is pressed against the feed roller 4, the paper feed starts. In the present embodiment, the driving start of the paper feed pressing member 3 and the rotation start of the paper feed roller 4 are performed at the same time, but the same effect can be obtained regardless of which is started first.

The fed sheet S is conveyed by the feed roller 5 to the sheet conveyance path 7 in the apparatus. At this time, when the sheet S fed by the sheet feeding roller 4 is a plurality of sheets, it is separated into only one sheet by the separating roller 6 arranged facing the feeding roller 5 and rotating in the opposite direction to the conveying direction. To be done.

Next, the sheet S whose front end has passed the separating portion by the above mechanism will be described with reference to FIG.

The magnetized direction of the MICR characters printed on the sheet S of the sheet S conveyed to the sheet conveyance path 7 is aligned by the permanent magnet 8 arranged in the sheet conveyance path 7, and the registration roller 9a and the registration driven roller 9b further internalize the apparatus. Be transported to.

Between the registration roller 9a and the first transport roller 13a, the sheet S is placed on the opposite side of the sheet detection sensor 10, the multi-feed detection sensor 11, the magnetic head 12, and the magnetic head 12 which take the timing of reading MICR characters. An opposed roller 12a that presses against is arranged.

When a plurality of sheets S are sent to the sheet conveyance path 7 without being separated into one sheet by the separation roller 6, the double feed detection sensor 11 detects the double feed. When the double feed is detected, the conveyance of the sheet S is stopped.

At the same time when the double feed detection sensor 11 detects the double feed, the sheet S is pressed by the facing roller 12a so that the portion where the MICR character is printed is brought into close contact with the magnetic head 12, and the MICR character is read.

Subsequently, the sheet S whose MICR characters have been read by the magnetic head 12 is conveyed in front of the imprinter 15 by the first conveying roller 13a and the first driven rollers 13b and 13c. The imprinter 15 prints a character string such as the date of processing the sheet or the name of the financial institution on the back surface of the conveyed sheet S by communicating with a higher-level device (not shown).

The sheet S that has passed through the imprinter 15 is conveyed by the second conveying roller 14a and the second driven rollers 14b and 14c, and the image reading sensor that reads the images on both sides of the sheet S after the registration sensor 16 sets the image reading timing. The sheet is conveyed to 30, and the images on both sides of the sheet S are read. The image reading sensor 30 has an LED, which is a light emitting element (not shown), a condenser lens, and a light receiving element, and can read the image images on both sides of the sheet S in both color and black and white. By using UV light for the light emitting element, it is possible to read an image in the UV region.

After the image of the sheet S is read, the sheet is discharged to the sheet stacker 21 by the sheet discharge roller 17a and the sheet discharge driven roller 17b. The discharge stacker 21 can discharge the discharged sheets S according to the discharged order of the discharge guides 18 and 19 for aligning the discharged sheets S on the discharge stacker 21 according to the stacking amount of the discharged sheets. A sheet retainer 20 is provided. The discharged sheet S has its conveyance direction changed by the discharge guides 18 and 19, and is discharged toward the alignment surface 21a. The ejected sheet S advances along the alignment surface 21a while being pressed against the alignment surface 21a by the sheet retainer 20, and the leading end of the sheet S is regulated by the sheet stopper 22.

Similarly, the sheets that are continuously discharged are also sequentially discharged so as to overlap the discharged sheets, and the leading ends of the sheets are aligned and aligned by the sheet stopper 22. When all the sheets S stacked on the hopper 2 are fed, the sheet conveying apparatus 100 stops operating.

Next, the operation of reading the image on the card will be described with reference to FIGS. When the card C is inserted into the card insertion opening 23 provided on the front surface of the apparatus, the card is detected by the card detection sensor 24, and the motor (not shown) starts rotating. The conveyance path from the insertion of the card into the card insertion opening 23 to the arrival of the card C at the card saving opening 27 described later runs in the reverse direction of the conveyance path of the sheet S.

Therefore, the initial operation of the motor is opposite to the rotation direction when the sheet S is conveyed. By the reverse rotation of the motor, the above-mentioned card transport roller 25 rotates in the card pull-in direction and transports the card C to the card transport path 26 provided in the apparatus. The card that has advanced along the card transport path 26 reaches the paper discharge roller 17a and the paper discharge driven roller 17b. The paper discharge roller 17a is also rotated in the direction in which the card is conveyed to the image reading sensor 30 by the reverse rotation of the conveying roller, and conveys the card C to the second conveying roller 14. The card C sent to the second carrying roller 14 goes straight on the second carrying roller 14 as it is, and is carried to the card retreat port 27 provided in front of it. When the trailing edge of the card C passes the registration sensor 16, the transport motor (not shown) temporarily stops rotating and starts rotating in the check transport direction. Similar to the image reading of a check, after the registration sensor 16 sets the timing of image reading, it is conveyed to the image reading sensor 30 and the images on both sides of the card are read. The card from which the image has been read is discharged to the discharge stacker 21 by the discharge roller 17, and the card reading operation is completed. At this time, since the paper ejection guide 18 is arranged at a position higher than the height of the card, the ejection of the card is not hindered.

Next, the operation of reading the magnetic information of the card C will be described with reference to FIGS. When the card is slid on the card slide port 40a provided on the upper surface of the device, the magnetic information recorded on the magnetic recording surface of the card C can be read. The card slide port 40a has an opening extending so as to slide the card in parallel with the adjacent transport path 7, thus realizing space saving.

The sheet conveying apparatus 100 operates according to the configuration described above. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without changing the gist.

Next, the separation unit according to the present invention will be described in detail.

As shown in FIG. 4, the feed roller 5 and the separation roller 6 each have a comb-tooth structure, and have a plurality of rollers in the axial direction and have irregularities on the surface. The convex portion of the feed roller 5 and the concave portion of the separation roller 6 are arranged so that the concave portion of the feed roller 5 and the convex portion of the separation roller 6 face each other. The gap A between the feed roller 5 and the separation roller 6 can be adjusted by an inter-axis adjustment mechanism 50, which will be described later, and the gap A between the circumferential surface of the feed roller 5 and the circumferential surface of the separation roller 6 serves to separate the sheet bundle S′. It is adjusted to obtain the optimum gap.

If the gap A is too narrow, the sheet S will not enter between the feed roller 5 and the separation roller 6, and the conveyance of the sheet S will stop at the separation section. Alternatively, there is a possibility that unstiff paper or soft paper may be pinched between the convex portions and wrinkles may be generated or the paper may be torn.

If the gap A is too small, the sheet bundle S′ is separated and conveyed one by one, but since the action of the separation roller 5 is too strong, when the sheet rear end passes through the separation portion, the sheet bundle S′ is conveyed. The transport speed of S is accelerated, which adversely affects MICR reading, imprinter printing, and image reading following the separation section.

If the gap A is too wide, a plurality of sheets S will pass, and the sheets S cannot be separated one by one, causing double feeding.

For the above reasons, the gap A needs to be adjusted to a good interval that is neither too wide nor too narrow. However, the preferable interval depends on the thickness of the sheet S.

Here, the details of the configuration and operation of the inter-axis adjustment mechanism 50 will be described. FIG. 5 is a detailed perspective view of the inter-axis adjustment mechanism 50, and FIG. 6 is a three-sided view of the inter-axis adjustment mechanism 50.

The feed roller 5 is rotatably supported by a roller drive shaft 51 a provided at the end of the roller holding member 51. Further, the roller holding member 51 is rotatably supported by the rotating shaft 52.

The inter-axis adjustment mechanism 50 is provided with an inter-axis adjustment dial 55 that can be operated by an operator. The inter-axis adjustment dial 55 has a gear shape, and the dial shape has fewer gears than the inter-axis adjustment dial 55 has. It is connected to the reduction gear 55b. A dial shaft 55a having a male screw is penetrated and fixed to the center of the dial reduction gear 55b.

An adjusting piece 54 having an internal thread is engaged with the dial shaft 55a so as to be movable in the B direction as the inter-axis adjusting dial 55 rotates. A protrusion 51b is provided on the end of the roller holding member 51 opposite to the roller drive shaft 51a. The roller holding member 51 is biased toward the adjustment piece 54 by a coil spring 53 that is an elastic body. The portion 51b is in contact with the adjustment piece 54 in a separable manner.

In the front view of FIG. 6, when the operator rotates the inter-axis adjustment dial 55 in the clockwise direction, the dial reduction gear 55b rotates, and at the same time, the dial shaft 55a rotates in synchronization, so that the adjustment piece 54 and The protrusion 51b of the roller holding member 51 moves in the B direction (+ direction) of FIG. 5, and the gap A shown in FIG. 4 becomes narrower.

When the inter-axis adjustment dial 55 is rotated counterclockwise, the adjustment piece 54 and the protrusion 51b of the roller holding member 51 are similarly moved in the direction B (negative direction) in FIG. 5 and the gap shown in FIG. A becomes wider.

The operation direction of the inter-axis adjustment dial 55 and the increase/decrease of the clearance A can be reversed depending on the winding direction of the screw of the dial shaft 55a and the screw of the adjustment piece 54, and thus are not limited to the present embodiment.

With the above mechanism, the operator can rotate the inter-axis adjustment dial 55 so that the sheet S can be conveyed through the gap between the feed roller 5 and the separation roller 6 in a good state in which the sheet S is not double-fed and the separation load is not received as much as possible. Adjust so that there is a gap.

As described above, since the protrusion 51b of the roller holding member 51 is in contact with the adjusting piece 54 and the coil spring 53 so as to be separable by the elastic force, the distance between the feed roller 5 and the separating roller 6 is the rigidity of the sheet S itself. It is possible to spread it during transportation. Therefore, according to the above structure, it is possible to cope with various types of sheets having a thickness as compared with the case where the roller holding member 51 is not made movable by using the elastic body without adjusting the axis. effective.

Further, as shown in FIG. 7, the inter-axis adjustment dial 55 is hidden by the adjustment window cover 56 that can be opened and closed, and therefore cannot be touched from the outside when the adjustment window cover 56 is closed. This prevents the operator from accidentally touching the inter-axis adjustment dial 55 and changing the adjustment value of the clearance A.

FIG. 8 is a top view of the drive unit 110 of the inter-axis adjustment mechanism of the sheet conveying device according to the embodiment of the present invention. The drive unit 110 is arranged below the inter-axis adjustment mechanism shown in FIG.

The driving force generated by the motor 113 is transmitted from the motor shaft 113b to the first transmission gear 115, the second transmission gear 112, and the feed roller drive gear 5b to drive the feed roller 5. Further, the driving force generated by the motor 113 is transmitted to the first transmission gear 115 and the feeding roller driving gear 4b to drive the feeding roller 4. Further, the driving force generated by the motor 113 is transmitted to the third transmission gear 116, the sheet feeding pressing member 3, and the driving gear 3b to drive the drive shaft 3a of the sheet feeding pressing member 3.

Further, the driving force of the motor 113 is also transmitted from the feeding roller driving gear 4b to the driving shaft of the card feeding roller via the fourth transmission gear 114.

As described with reference to FIGS. 5 and 6, the feed roller 5 is attached so that its position is movable, and the distance from the separation roller 6 can be adjusted. Even if the feed roller 5 moves, it is preferable to keep the meshing with the feed roller drive gear 5b constant. Therefore, in the present embodiment, the rotation shaft (rotation center) 112a of the second transmission gear 112 that transmits the driving force to the feed roller gear 5b and the rotation shaft 52 of the roller holding member 51 shown in FIG. 5 are arranged on the same straight line. doing.

With such a configuration, the feed rotation center 5a, which is the rotation center of the feed roller gear 5b, moves on an arc centered on the rotation shaft 112a of the second transmission gear 112, and the rotation rotation of the rotation shaft 112a and the feed rotation center 5a. The relative distance from the center 5a is constant. That is, the meshing between the second transmission gear 112 and the feed roller gear 5b provided below the feed roller 5 which is rotated about the rotation shaft 52 of the roller holding member 51 and adjusted between the shafts can be kept constant. it can.

Next, a case where only one sheet having a large wrinkle or damage is conveyed will be described.

The above-mentioned adjustment window cover 56 is rotatably installed on the T-shaped hinge 57 as shown in FIG. The T-shaped hinge 57 is installed so that it can be pushed down directly below the apparatus housing, and is urged upward in FIG. 9 via a window spring 58 between the T-shaped hinge 57 and the apparatus housing. Therefore, the adjustment window cover 56 can be pushed downward through the T-shaped hinge 57 as shown in FIG.

The T-shaped hinge 57 has a window spring 58 formed of a coil spring and a protrusion 57a to be inserted into a step formed on the exterior of the device below the T-hinge 57, and both ends thereof are adjusted. It has a fixing rib 57c for pivotably supporting the window cover 56.

When the T-shaped hinge 57 is pushed down, the protrusion 57a of the T-shaped hinge 57 shown in FIG. 9 biases the inclined surface 51c provided on the roller holding member 51 from the Y direction as shown in FIG. Push away in the X direction. The roller holding member 51 is rotatably supported and is restricted by the coil spring 53 to a position where the protrusion 51b abuts on the adjusting piece 54, but the protrusion 57a presses the inclined surface 51c. As a result, the coil spring 53 rotates about the rotation shaft 52, and the coil spring 53 extends and rotates in the direction in which the gap A widens.

That is, as shown in FIG. 12B, the distance between the separation roller 6 and the feed roller 5 becomes sufficiently wide only while the adjustment window cover 56 is pressed. When the adjustment window cover 56 is stopped from being pushed down, the coil spring 53 and the window spring 58 return to the position where the projection 51b of the roller holding member 51 abuts the adjustment piece 54 as shown in FIG. The window cover 56 rises and returns to its original position.

Further, when the T-shaped hinge 57 is pushed down, the fixed rib 57c moves downward while being guided by the groove 59 formed in the exterior of the device, so that the T-shaped hinge 57 can be smoothly moved only in the vertical direction. There is.

With this configuration, since the feed roller 5 moves in the direction in which the gap A shown in FIG. 5 is widened only while the adjustment window cover 56 is being pressed, the separating function can be invalidated. By feeding in this state, it is possible to convey and read the sheet S in a particularly bad state.

Further, as the adjustment window cover 56 moves along the cover guide surface 57b shown in FIG. 11, the adjustment window cover 56 is pushed down and rotated in the direction of opening toward the outside of the apparatus, as shown in FIG. And descend while overlapping the device exterior. Therefore, when the adjustment window cover 56 is raised, the gap between the lower portion of the adjustment window cover 56 and the sheet conveying apparatus 100 can be made smaller than the movable range of the adjustment window cover 56, and the appearance of the apparatus can be improved. Has become.

FIG. 13 is an enlarged view of the vicinity of the imprinter 15. As described above, the sheet S from which the magnetic ink characters have been read can be printed (e.g., predetermined printing) that clearly indicates that electronic settlement has been completed.

On the downstream side of the magnetic head 12, for example, an imprinter (endorser) 15 which is a printing unit for printing information created from the read magnetic ink characters, such as the date and the name of the financial institution where the document S was brought in, is provided. It is provided on the carriage in a detachable manner.

The imprinter 15 is held by the carriage and is electrically connected to the controller unit via a contact portion (not shown) provided on the carriage.

Here, in the present embodiment, after the imprinter 15 which is an ink jet recording head is mounted via a carriage, the imprinter 15 is a detachable cover member that forms a part of the apparatus main body including its peripheral portion. It is covered by the illustrated opening/closing cover. The open/close cover is arranged so that the height of the open/close cover is the same as that of the adjacent magnetic swipe reader 40 and the image reading sensor 30 to suppress unevenness in appearance.

FIG. 13A shows a state in which the opening/closing cover is removed, and a lid 300 is arranged below the opening/closing cover. FIG. 13B shows the state in which the lid body is opened. By doing so, the print head of the imprinter 15 can be replaced, and the lid body 300 serves as a lid that covers the upper portion of the imprinter 15.

As shown in FIG. 13B, a cleaning unit 301 for cleaning the print head of the imprinter 15 is provided on the back surface of the lid 300. Specifically, a wiper (blade portion) 301a made of an elastic material for wiping off paper dust, residual ink, etc. attached to the ink ejection surface of the print head, and the ink ejection surface cleaned by the wiper 301a are pressed against each other. And a porous member (ink absorber) 301b, which serves as a cleaning member for sucking residual ink from the ink ejection surface, is provided along the slide direction.

The porous member 301b is configured to have a constant contact pressure (wiping pressure) when the print head is slid. That is, the upper surface of the porous member 301b is inclined like a downward slope in the direction opposite to the sliding direction of the print head (the direction from the wiper 301a toward the porous member 301b).

By disposing the cleaning unit 301 on the back surface of the lid 300, it is possible to make the cleaning unit 301 easy to clean by opening the lid 300 for the attachment/detachment operation of the print head, and the cleaning can be easily performed. it can. Further, by closing the lid 300, the cleaning unit 301 can be housed without requiring an extra space except when cleaning.

The sheet conveying apparatus according to the present invention is not limited to bills and checks, and can process various documents such as securities such as gift certificates or coupon tickets.

1 Tray 2 Hopper 2a Stacking Detection Sensor 3 Paper Feed Pressing Member 4 Paper Feed Roller 5 Feed Roller 6 Separation Roller 7 Sheet Conveying Path 8 Permanent Magnet 9a Registration Roller 9b Registration Followed Roller 10 Sheet Detection Sensor 11 Double Feed Detection Sensor 12 Magnetic Head 12a Opposed Rollers 13a First transport rollers 13b, 13c First driven roller 14a Second transport rollers 14b, 14c Second driven roller 15 Imprinter 16 Registration sensor 17a Paper discharge roller 17b Paper discharge driven roller 18, 19 Paper discharge guide 20 Sheet press 21 Paper ejection stacker 21a Alignment surface 22 Sheet stopper 23 Card insertion port 24 Card detection sensor 25 Card feeding roller 27 Card retraction port 30 Image reading sensor 40 Card slide port 50 Axis adjustment mechanism 51 Roller holding member 51a Roller drive shaft 51b Projection 51c Inclined surface 52 Rotating shaft 53 Coil spring 54 Adjustment piece 55 Inter-axis adjustment dial 55a Dial shaft 55b Dial reduction gear 56 Adjustment window cover 57 T-shaped hinge 57a Projection 57b Cover guide surface 58 Window spring 60 Operation panel 100 Sheet conveying device S sheet C card

Claims (3)

A sheet conveying device,
A housing,
A pair of rotating bodies arranged in the housing and capable of separating and transporting sheets,
Holding means for supporting any one of the pair of rotating bodies with a supporting shaft,
An adjusting piece provided so as to be movable in contact with the holding means,
Adjusting means for moving the adjusting piece in a direction in which a force is exerted on the holding means,
The holding means is rotatably supported by a rotation shaft portion provided between the support shaft and the contact position of the adjustment piece,
By the adjustment means, Ri adjustable der distance between the axes of the pair of rotating bodies,
The sheet conveying device further includes
Urging means for urging the holding means toward the adjustment piece,
Second adjusting means for displacing the holding means in a direction of increasing the inter-axis distance against the urging force of the urging means,
A cover member for covering the adjusting means,
It said second adjusting means, characteristics and be Resid over preparative conveying device that supports the cover member rotatably. The sheet conveying device according to claim 1, wherein the pair of rotating bodies are a pair of comb teeth rollers. The cover member can be pushed toward the second adjusting means side in a state of being rotated so as to open the adjusting means,
In the pressed condition, a sheet conveying apparatus according to claim 1 or 2, characterized in that the tip of the cover member is moved so as to overlap the outer surface of the housing.