JP6037193B2 - Media processing device - Google Patents

Description

  The present invention relates to a medium processing apparatus that records image information or print information on the surface of a recording medium such as a plastic card or a cardboard card, and more particularly to image recording on cards by correcting the skew of the recording medium in the apparatus. The present invention relates to a medium processing apparatus capable of preventing mistakes.

  In general, this type of medium processing apparatus is widely known as an apparatus for recording information on cards used for various certificate cards, payment cards, and the like. For example, a face photograph, name, name, etc. are recorded on the front and back surfaces of the card in the form of image information and print information. At this time, image information is recorded on the card surface by a thermal transfer device and print information is recorded by a printer.

  In such a media processing device, if the card is skewed when transported to the thermal transfer device or printer, when the card is transported to the thermal transfer device or printer, it is used for thermal transfer or printing on the card surface. There is a risk of problems such as distortion.

  Therefore, there is a card processing device provided with a skew prevention device that corrects the posture of the card being conveyed. For example, in Patent Document 1, a pair of reference guides for restricting the card conveyance direction is provided, and the card conveyed to the printing position is adjusted to one of the reference guides by a width adjustment mechanism, whereby the card surface is A card handling device is disclosed that prevents printing errors such as printing diagonally or printing out of a prescribed frame.

JP 7-271923 A

  By the way, in this type of card processing apparatus including the apparatus of Patent Document 1, the card is fed and moved by a plurality of feeding rollers arranged along the conveying direction. At this time, each feeding roller is a pair. The card is sandwiched and conveyed by the rollers.

  Therefore, even if an attempt is made to prevent skew by width-adjusting the card being conveyed to one of the reference guides by the width-adjusting mechanism, even if the width-adjusting operation is performed in the state where the card is held by the supply roller, the supply roller If the card holding force by is strong, correction by width adjustment may be insufficient. Therefore, if the pressing force to the card of the width adjusting mechanism is increased, this causes the card to bend and be damaged.

  Further, if the holding force of the card of the feeding roller is weakened, there is a problem that the card is not reliably conveyed to the thermal transfer device or the printer due to slipping and the processing timing on the card surface is not matched.

  In view of the above, an object of the present invention is to provide a medium (card) processing apparatus that can correct a skew of a card being transported and reliably transport the card in a correct posture.

In order to solve the above problems, the present invention provides a medium processing apparatus including a recording apparatus that prints and records information on a front surface or a back surface of a recording medium, and a medium conveyance path that conveys the recording medium to the recording apparatus side. A first roller pair that sandwiches the recording medium on the upstream side in the transport direction, and the recording medium is sandwiched on the downstream side in the medium transport path so that the recording medium is transported toward the recording apparatus during print recording. A second roller pair, a guide member provided along one side of the transport path in the transport path between the first roller pair and the second roller pair, and the other of the transport direction in the transport path A skew-adjusting member that presses the recording medium against the guide member side on the side of the recording medium, and corrects a skew state of the recording medium in the medium conveyance path When, with a nip pressure sandwiching the recording medium by the first pair of rollers, wherein the nip pressure sandwiching the recording medium by the second pair of rollers is set smaller, the recording medium, the first roller Upstream of the medium conveyance path until the recording medium is transported in the forward direction to the recording apparatus side and sandwiched between the second roller pair and then removed from the sandwiching of the second roller pair by the first roller pair and the second roller pair. In the forward direction, and then forward again in the forward direction toward the recording apparatus by the first roller pair, and the skew correction is corrected by the skew correction means when transported in the forward direction and the reverse direction. It is the, medium processing apparatus, characterized in that.

  The first roller pair and the second roller pair until the recording medium is released from the holding of the second roller pair after the recording medium is held by the second roller pair by forward conveyance to the recording apparatus side. The recording medium is transported in the reverse direction in the upstream direction of the medium transport path, and then the recording medium is transported again in the forward direction to the recording apparatus side.

  Here, the conveyance speed during the reverse conveyance of the recording medium is set to be slower than the conveyance speed during the normal conveyance.

  The moving distance of the recording medium during the reverse conveyance is variably set according to the type of the recording medium.

  For example, the moving distance when the recording medium is conveyed in the reverse direction is variably set based on the length of the side in the conveying direction of the recording medium.

  In addition, the moving distance of the recording medium during the reverse conveyance is variably set based on the thickness or rigidity of the recording medium.

  According to the present invention, in a medium processing apparatus provided with a recording apparatus for recording information on the surface of a recording medium, a nip pressure for gripping the recording medium of a second roller pair arranged on the upstream side for conveying cards is provided. In order to correct the skew of the card conveyed to the recording apparatus and adjust the correct posture by setting the nip pressure of the first roller pair disposed on the downstream side to be larger than the nip pressure for gripping the recording medium, printing distortion Thus, it is possible to correctly record information on the surface of the recording medium.

  Further, in the present invention, the skew correction can be ensured for any card by repeating the skew correction opportunity of the cards not only once but a plurality of times.

1 is an explanatory diagram showing an embodiment of a medium processing apparatus according to the present invention. Explanatory drawing which shows the part which correct | amends skew with the medium processing apparatus concerning this invention from a plane. Explanatory drawing which shows the part which correct | amends skew with the medium processing apparatus concerning this invention from a plane. The figure which illustrates typically the flow of the operation | movement which corrects a skew. The figure explaining typically a structure and operation | movement when correcting the skew of a card | curd with a long edge | side of a conveyance direction. The figure which shows the structure of the periphery of a medium conveyance path | route. The figure which shows the state which each open | released the shielding board and the unit frame of the decal mechanism from the state of FIG.

  Hereinafter, the present invention will be described in detail based on the preferred embodiments shown in the drawings. FIG. 1 is an explanatory diagram of the overall configuration of a medium processing apparatus 1 according to the present invention. The medium processed by the apparatus of FIG. 1 is an ID card for various certifications, a credit card for commercial transactions, etc., and information is recorded electronically on the card and image information is recorded on the surface of the card by thermal transfer. It is a card processing device. Therefore, the housing 2 includes an information recording unit A, an image forming unit B, and a medium storage unit C. The information recording unit A includes a magnetic recording unit 24, a non-contact type IC recording unit 23, and a contact type IC recording unit 27. The information recording unit A is composed of various recording units, for example, a bar code recording unit, depending on the apparatus specifications.

  The medium accommodating part C is constituted by a cassette for accommodating a plurality of cards. For example, this cassette is provided with a hopper-like cassette in the apparatus housing 2 or a card cassette 3 separated from the apparatus housing 2. The card cassette 3 can be removed from the cassette mounting area of the apparatus housing 2.

  In the present embodiment, the card supply direction is inclined, but the card cassette 3 does not have to be attached / detached in any direction, and may be configured to be pulled upward with respect to the apparatus housing 2.

[Card supply section]
A medium accommodation portion C is provided in the cassette mounting area of the apparatus housing 2 and is composed of a card cassette 3 that accommodates a plurality of cards. The card cassette 3 shown in FIG. 1 stores a plurality of cards arranged in a standing posture, and feeds the cards from the left end to the right end in the figure. A separation opening 7 is provided at the front end of the card cassette 3, and the pickup roller 19 supplies the card from the front row to the apparatus.

[Configuration of information recording section]
The card sent from the card cassette 3 is sent to the reversing unit F by the carry-in roller 22. The reversing unit F is composed of a rotating frame 80 supported by the apparatus frame so as to be pivotable, and a pair or a plurality of roller pairs supported by the rotating frame 80.

  In the illustrated example, two roller pairs 20 and 21 arranged at a distance from each other at a distance are axially supported on a rotating frame 80. The rotating frame 80 is swiveled in a predetermined angle direction by a swiveling motor (such as a pulse motor), and the roller pairs 20 and 21 attached thereto are configured to rotate in the forward and reverse directions by a transport motor. Although this drive mechanism is not shown, even if the rotation motion of the rotating frame 80 and the rotation of the roller pair 20, 21 are switched by a clutch with one pulse motor, the turning motion of the rotating frame 80 and the roller pair 20, The rotation of 21 may be configured as a separate drive.

  Accordingly, the cards prepared in the card cassette 3 are separated one by one by the pickup roller 19 and the separation roller (idle roller) 9 and sent to the reverse unit F on the downstream side. Then, the reversing unit F carries the card into the unit by the roller pairs 20 and 21 and deflects the posture in a predetermined angle direction while being nipped by the roller pairs 20 and 21.

  A magnetic recording unit 24, a non-contact type IC recording unit 23, a contact type IC recording unit 27, and a reject stacker 25 are arranged on the outer periphery of the reversing unit F in the turning direction. The pair of rollers 20 and 21 forms a medium carry-in path 65 for carrying in toward one of the information recording units 23, 24, and 27. A bar code reader 28 shown in the figure is a unit for reading a bar code printed by an image forming unit B, which will be described later, and making a correct / incorrect determination (error determination).

  The magnetic recording unit 24, the non-contact type IC recording unit 23, or the contact type IC recording unit 27 passes through the medium carry-in path 65 formed by the roller pair 20, 21 with the card deflected in a predetermined angular direction by the reversing unit F. Then, data can be input to the card magnetically or electrically. Further, when a recording error occurs in these information recording units, the information recording unit is carried out to the reject stacker 25.

  In FIG. 1, the reversing unit F is turned toward the non-contact type IC recording unit 23, and the card forms a medium carry-in path 65 toward the recording unit 23 by the roller pair 20, 21. The non-contact type IC recording unit 23 includes an IC reader / writer substrate 67, an IC reader / writer antenna 69, and a medium transport path 68. The IC reader / writer antenna 69 passes through a medium transport path 65 and passes through a medium transport path. Information transmitted from the IC reader / writer substrate 67 is transmitted to the IC chip embedded in the card introduced in 68 as a radio wave signal. As a result, recording information is recorded on the IC chip.

  By arranging a blocking plate 70 that blocks the radio signal from the IC reader / writer antenna 67 between the medium transport path 68 and the medium transport path P1, another card that is being transported in the medium transport path P1. Prevents misrecording. The shielding plate 70 is composed of a shield material (radio wave absorber), and a material that absorbs and blocks radio waves in a specific band is selected as the shield material.

  An image forming unit B is provided on the downstream side of the reversing unit F, a medium transport path P1 for transferring the card to the image forming unit B is provided, and the reversing unit F is disposed in the path P1. In addition, transport rollers 29 and 30 (first roller pair and second roller pair) for transporting cards are arranged in the medium transport path P1, and are connected to a transport motor (not shown).

  The transport rollers 29 and 30 are configured to be able to switch between forward and reverse, and transport cards from the image forming unit B to the reversing unit F in the same manner as transporting cards from the reversing unit F to the image forming unit B. Yes. Further, the transport rollers 29 and 30 are a pair of rollers that feeds out a card to be transported while being sandwiched between a pair of upper and lower rollers. Between the transport roller 29 (first roller pair) and the transport roller 30 (second roller pair), a skew correction guide member 100 (see FIG. 2) and a width adjusting member 101 according to the present invention are provided. The skew of the card conveyed toward the image forming unit B is corrected. The specific configuration and operation regarding this will be clarified later.

  On the downstream side of the image forming unit B, a medium transport path P2 for transporting the card to the storage stacker 60 is provided. Conveying rollers (or belts) 37 and 38 for conveying cards are arranged on the medium conveying path P2, and are connected to a conveying motor (not shown).

  A decurling mechanism 36 is disposed between the transporting roller 37 and the transporting roller 38, and the curl generated by the thermal transfer is corrected by pressing the central portion of the card held between the transporting rollers 37 and 38. For this reason, the decurling mechanism 36 is configured to be movable in the vertical direction shown in FIG. 1 by a lifting mechanism (such as a cam) not shown.

  The conveying roller 37 is a nip roller 71 and the conveying roller 38 is a nip roller 72 to nip the card to be decurled. When the pressing portion 74 is pushed down by the elevating mechanism, the receiving portion 73 causes the pressing portion 74 to move. It moves downward together with the nip rollers 71 and 72 while receiving it. Thereby, since the nip of the card | curd by the conveyance roller 37, the nip roller 71, and the conveyance roller 38, and the nip roller 72 is cancelled | released, the prepared curl correction can be performed.

"Image forming part"
The image forming unit B forms images such as face photographs and character data on the front and back surfaces of the recording card. The illustrated apparatus shows a case where an image is formed with a sublimation ink ribbon.

  In the image forming part B, a thermal head 40 and an ink ribbon 41 are arranged. The ink ribbon 41 is accommodated in a cartridge 42, and an operation roll 43 and a take-up roll 44 are accommodated in the cartridge 42, and a wind motor Mr 1 (not shown) is connected to the take-up roll 44.

  A thermal head 40 is disposed at a position facing the platen roller 45. The thermal head 40 is thermally controlled by a head control IC (not shown). The head control IC forms an image of the ink ribbon 41 on a transfer film 46 (to be described later) by controlling the heating of the thermal head 40 according to the image data. Therefore, the take-up roll 44 rotates in synchronization with the thermal control of the thermal head 40, and the ink ribbon 41 is taken up at a predetermined speed. 39 is a cooling fan for cooling the thermal head 40 and releasing the heat generated in the apparatus.

  The transfer film 46 is wound around a take-up roll 47 and a feed roll 48, and the transfer film 46 is wound around a platen roller 31 and a heat roller 33 which are thermal transfer devices so as to transfer a transfer image. 49 is a transfer roller for the transfer film 46, and pinch rollers 32a and 32b are arranged on the peripheral surface thereof. The transfer roller 49 is connected to a drive motor (not shown). Then, the transfer film 46 moves counterclockwise in FIG. 1 at the same speed as the ink ribbon 41.

  Further, the heat roller 33 is provided with an elevating mechanism (not shown) so as to be pressed against and separated from the platen roller 31 disposed in the medium conveyance path P1 via the transfer film 46. The heat roller 33 is composed of a heating roller, and the image on the transfer film 46 is transferred to the surface of the recording card by a heating means arranged inside. In the figure, Se1 is a position detection sensor of the ink ribbon 41, and Se2 is a presence / absence detection sensor of the transfer film 46.

  In the medium transport path P1, the card transported through the medium transport path P1 is transported to the platen roller 31 by the transport roller 30, and thermal transfer is performed by the heat roller 33 not shown in FIGS.

  FIGS. 6 and 7 illustrate a conveyance roller 29 (first roller pair) disposed along the medium conveyance paths P1 and P2 in the information recording unit A and the image forming unit B, and a skew correction guide member 100. 3 shows a specific configuration of the width adjusting member 101, the conveying roller 30 (second roller pair), the platen roller 31, and the decurling mechanism 33. The upper unit of the decurling mechanism 36 in which the shielding plate 70 and the upper and lower units are pivotably separated can be opened upward. FIG. 6 shows a state in which FIG. Medium conveyance paths P1 and P2 appear.

"Container"
As shown in FIG. 1, the accommodating portion D is configured to accommodate the card sent from the image forming portion B in the accommodating stacker 60. The storage stacker 60 is configured to detect the uppermost card by a lifting mechanism 61 and a level sensor (not shown) and to move downward by the lifting mechanism 61 in FIG.

  Among the overall configuration of the card processing apparatus 1 according to the present invention described above, a specific configuration and operation for correcting the skew of the card conveyed from the card cassette 3 in the image forming unit B by the medium conveyance path P1 will be described below. Explained.

  FIG. 2 shows the medium transport path P1 from a plane. As shown in FIG. 2, skew correction means is provided in the medium conveyance path P1 between the conveyance roller 29 (first roller pair) and the conveyance roller 30 (second roller pair). Specifically, the skew correction means includes a guide member 100 and a width adjusting member 101. The guide member 100 is provided on one side along the card conveyance direction of the medium conveyance path P1. The width adjusting member 101 is disposed on the other side of the medium conveyance path P1 so as to face the guide member 100. The width adjusting member 101 includes a pressing member 102 for pressing the side surface of the card against the guide member 100 from the side sandwiching the medium conveyance path P1, and a spring. The pressing member 102 biases the pressing member 102 toward the guide member 100. And a biasing member 103. As described above, the width adjusting member 101 is configured to adjust the card passing through the medium transport path P <b> 1 toward the guide member 100 by the pressing force of the urging member 103.

  The holding force (nip pressure) of the conveyance roller 30 with respect to the card is larger than that of the conveyance roller 29. Specifically, by adjusting the dimensions and diameter between the pair of rollers, the urging force between the rollers, and the like, a clamping force that can surely send out the card to the image forming part B without causing a slip is applied. Has been.

  On the other hand, when the conveyance roller 29 is set to have a smaller holding force (nip pressure) with respect to the card than the conveyance roller 30, the card easily moves when the width is brought close to the guide member 100 by the width adjustment member 101. Therefore, the holding force is set so that the conveying posture is corrected to coincide with the conveying direction.

  Therefore, when the card is conveyed to the medium conveyance path P1 in a skewed state as shown in FIG. 3, the card is conveyed by the conveyance roller 29 only and is not conveyed to the conveyance roller 30 during the period. Since the holding force of the roller 29 is small, the roller 29 is conveyed while being corrected by the width adjusting member 101. When the skew-corrected card reaches the transport roller 30 and is fed out by the roller 30, it is surely introduced into the platen roller 31 and the heat roller 33 without causing slippage or the like due to a large clamping force. .

  At this time, the conveying roller 29 has a weaker clamping force than the conveying roller 30, but even when the card is fed out only by the conveying roller 29, the card is guided by the guide member 100, so that the card is conveyed. It can be reliably transported without shaking from side to side. Even so, if the clamping force of the conveying roller 29 is too weak, accurate conveyance becomes difficult due to the influence of slippage and the pressing force by the width adjusting member 101. Therefore, it is necessary to secure the holding force of the transport roller 29 to some extent. However, even if the skew is corrected, the correction is insufficient when the card is transported in a greatly deviated state. It is also possible to end up with.

  Therefore, in the present invention, the correction of the skew is repeated by reciprocating the conveyance of the card C1, thereby achieving a reliable correction. That is, when the card C1 is conveyed in the direction of the platen roller 31 and the heat roller 33 (conveyed in the forward direction), as shown in FIG. 4, the nipping by the conveying roller 29 alone and the width adjusting operation of the width adjusting member 101 are performed. When the first correction of the card is performed by the cooperation (portion (A) in FIG. 4), and the sensor SA detects that the card is reached by the conveyance roller 30 (FIG. 4B). Part), the transport rollers 29 and 30 are reversed to transport the card in the reverse direction away from the platen roller 31 and the heat roller 33 (part (C) in FIG. 4). The second correction is performed when the conveyance roller 29 is singly held in the reverse conveyance process, but the card C1 is conveyed in the reverse direction compared to the normal conveyance in FIG. 4A. If the control is performed to reduce the speed, the width adjusting period by the width adjusting member 101 becomes longer, and further correction can be ensured.

  When a predetermined time has elapsed after the sensor SB detects the card C1 conveyed in the reverse direction (portion (D) in FIG. 4), the conveying rollers 29 and 30 rotate again to rotate the card C1 to the platen roller 31. It is conveyed again in the forward direction toward the heat roller 33. This is a repetition of the part (A) in FIG. 4, and the correction action is performed even in this mode. When the paper is again held by the transport roller 30, the card C1 is reliably transported to the image forming unit B while maintaining the correct posture after correction with the strong clamping force.

  The movement distance of the card C1 by reverse conveyance shown in the part (D) of FIG. 4 is set to perform control based on the length of the side along the conveyance direction of the card. In this case, naturally, in the case of the card C1 having a long side along the transport direction, the correction of the skew by the reverse transport is incomplete unless the return amount by the reverse transport is increased, and therefore the rear end portion of the card C1 is reversed. As shown in the part (A) of FIG. In such a state, the card C1 is held also by the roller pair 20 or the roller pair 21 in the reversing unit F, and both the nipping by the conveying roller 29 alone and the width adjusting operation of the width adjusting member 101 are shared. It becomes impossible to correct the posture of the card by work.

  Therefore, when the notch portion 104 is provided in the reversing unit F and the card C1 is reversely conveyed to correct the skew posture, the reversing unit F is arranged so that the rear end portion of the card C1 advances into the notch portion 104 as shown in FIG. Control to rotate to the position shown in part (B) of FIG. By doing so, even a card having a long side along the transport direction can be held by the transport roller 29 alone, and the skew can be reliably corrected.

  In this way, if the roller pair 20, 21 is in such a reversing unit F, the reversing unit F may be provided with the notch 104 and the reversing unit F may be rotated. If a roller pair similar to the roller pair 20, 21 exists between the reversing unit F and the transport roller 29 even if the apparatus or the reversing unit F exists, the roller pair is retracted from the medium transport path P1. A simple moving mechanism may be provided.

  Moreover, you may set so that the movement distance of the card | curd C1 by reverse conveyance shown to the part (D) of FIG. 4 may be determined with the thickness or rigidity of the card | curd C1. That is, in the case of a card having a small thickness or a card having low rigidity, if the pressing force of the width adjusting member 101 is large, the card may be damaged or deformed. Therefore, the width adjusting member matches the thickness and rigidity of the card C1. The pressing pressure of 101 is controlled. However, in order to reliably correct the skew of the card C1 by the width adjusting member 101 when the pressing force is set low, the pressing member 102 is pressed against the card C1 longer than when the pressing force of the width adjusting member 101 is large. It is necessary to hit. Therefore, by increasing the reverse conveyance distance of the card C1, it is possible to surely correct the skew even with a thin card or a card with low rigidity. Of course, the same effect may be obtained by slowing the transport speed of the card C1 during reverse transport.

  As described above, in this embodiment, a pair of transport rollers 29 (first roller pair) and 30 (second roller pair) that feed and transport the card to a thermal transfer device that records image information on the surface of the card, which is a recording medium. In the meantime, a skew correction means is arranged, and the nip pressure of the card of the transport roller 30 is set larger than the nip pressure of the transport roller 29, so that when the card is nipped by the transport roller 29 and fed out, the guide The card skew is corrected by the action of the member 100 and the width adjusting member 101.

  The skew correction means includes a guide member 100 provided along one side in the transport direction in the medium transport path P1, and a width approach for pressing the card toward the guide member 100 on the other side in the transport direction in the medium transport path P1. The member 101 is constituted. In this manner, the skew of the card to be conveyed is shifted from the direction perpendicular to the medium conveyance path P1, thereby enabling accurate skew correction.

  In order to further improve the certainty of correction, when the card conveyed in the forward direction toward the platen roller 31 of the image forming unit B reaches the nipping by the conveying roller 30, the card is once reversely conveyed and conveyed again. Returning to the state of being held by the roller 29 alone, correction by the skew correction means is performed again. At this time, if the reverse conveyance speed is made slower than the normal conveyance speed, the effect of re-correction is further enhanced. Furthermore, by making the card movement distance during reverse conveyance variable based on the length of the side in the card conveyance direction, the thickness or rigidity of the card, it is possible to reliably prevent skew while preventing card deformation and printing defects. Correction can be performed.

  The corrected card is reliably conveyed to the platen roller 31 and the heat roller 33 of the image forming unit B without causing slippage or the like due to the strong nip pressure of the conveyance roller 30. In the embodiment, the recording apparatus for recording information on the card surface has been described by the thermal transfer apparatus using the platen roller 31 and the heat roller 33. However, the utility of the present invention is the same for a printer for recording print information on the card surface. In addition, since the card is corrected to the correct posture and conveyed to the printer, a printing error on the card surface is prevented.

  In this embodiment, the card is supplied in the forward direction ((A) part in FIG. 4), the transport roller 30 pinches the card ((B) part in FIG. 4), and then the transport rollers 29 and 30 are moved. Although the reverse rotation is shown to convey the card in the opposite direction away from the platen roller 31 and the heat roller 33 (part (C) in FIG. 4), the card is once conveyed to the medium conveyance path P2 and then reversely conveyed. Then, the conveyance roller pairs 29 and 30 may be sandwiched (portion (B) in FIG. 4). For example, when there is a non-contact IC read / write unit in the medium conveyance path P2 (downstream of the image forming unit B), the card is reversely conveyed after passing through the conveyance rollers 29 and 30 once and performing a non-contact IC read / write process. 4B, the skew correction operation after FIG. 4C may be performed.

  At that time, the card conveyance speed from the time when the card is supplied and conveyed to the medium conveyance path P2 to the time when the card is reversely conveyed and the card is held between the conveyance roller pairs 29 and 30 is shown in FIG. Control is performed to slow down the card transport speed during the subsequent skew correction operation.

  In this embodiment, the card supply direction and the card conveyance direction at the time of image formation are the same. However, the card supply direction may be different from the card conveyance direction at the time of image formation. In that case, the card conveyance speed at the time of subsequent skew correction is slower than the conveyance speed from when the card is supplied until it passes through the image forming unit B and is held between the conveyance roller pairs 29 and 30. To control.

  The present invention relates to a medium processing apparatus that records image information or print information on the surface of a recording medium such as a plastic card or a cardboard card, and corrects the skewed card posture in the apparatus, thereby accurately correcting the card surface. The recording process can be performed and has industrial applicability.

29 Conveyance roller (first roller pair)
30 Conveying roller (second roller pair)
31 Platen roller (recording device)
33 Heat roller (recording device)
100 Guide member 101 Width-adjusting member 102 Pressing member 103 Biasing member P1 Medium conveyance path

Claims (7)

In a medium processing apparatus provided with a recording apparatus for printing and recording information on the front surface or the back surface of a recording medium,
A first roller pair that sandwiches the recording medium on the upstream side in the conveyance direction in a medium conveyance path for conveying the recording medium to the recording apparatus;
A second roller pair that sandwiches the recording medium on the downstream side in the medium conveyance path and conveys the recording medium toward the recording apparatus during print recording;
Between the first roller pair and the second roller pair, a guide member provided along one side in the transport direction in the transport path, and the recording medium on the other side in the transport direction in the transport path. A width adjusting member pressed against the guide member side, and a skew correction means for correcting a skew state of the recording medium in the medium conveyance path,
The nip pressure for sandwiching the recording medium by the first roller pair is set smaller than the nip pressure for sandwiching the recording medium by the second roller pair,
The recording medium is conveyed in the forward direction toward the recording apparatus by the first roller pair, and after being sandwiched between the second roller pair, the second roller pair is sandwiched between the first roller pair and the second roller pair. When the paper is conveyed backward in the upstream direction of the medium conveyance path until it deviates from the medium, and then conveyed forward again to the recording apparatus side by the first roller pair, when the forward conveyance and the backward conveyance are performed, A medium processing apparatus, characterized in that the skew state is corrected by skew correction means . The conveying speed at the time of the reverse conveyance of the recording medium, the medium processing apparatus according to claim 1, characterized in that it is set slower than the conveying speed at the time of the forward transport. The moving distance during the reverse conveyance of the recording medium, the medium processing apparatus according to claim 1 or 2, characterized in that it is variably set according to the type of the recording medium. The medium processing apparatus according to claim 3 , wherein a moving distance of the recording medium when the recording medium is conveyed in the reverse direction is variably set based on a length of a side in the conveying direction of the recording medium. The medium processing apparatus according to claim 4 , wherein a moving distance of the recording medium during the reverse conveyance is variably set based on a thickness or rigidity of the recording medium.   The conveyance speed when the recording medium is reciprocally conveyed only by the first roller pair is set to be slower than the conveyance speed when the recording medium is carried into the medium conveyance path. Item 4. The medium processing apparatus according to Item 1. The moving distance of the recording medium when the recording medium is reciprocated only in the first pair of rollers, according to claim 1, characterized in that is variably set according to the type of the recording medium Media processing device.

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