JP4945738B2 - Medium processing apparatus and control method thereof - Google Patents

Description

  The present invention relates to a medium processing apparatus that reads or writes information on a card-like medium such as a bank card or a credit card, and a control method thereof.

  Conventionally, as a card used in financial institutions to realize cashless and personal authentication, a magnetic card having a magnetic stripe formed on the surface of a plastic substrate and an integrated circuit chip (IC chip) embedded in the plastic substrate In addition, there is an IC card having IC terminals arranged on the surface. Information is recorded or reproduced on the magnetic card or the IC card by a card processing device having a magnetic head or an IC contact (see, for example, Patent Document 1).

  The card processing apparatus disclosed in Patent Document 1 reads magnetic information stored in a magnetic card by touching / sliding a magnetic head on a magnetic stripe on the surface of the magnetic card, or adds new information to the magnetic card. Write magnetic information. In addition, by contacting or abutting an IC contact with a metal terminal (IC terminal) on the surface of the IC card, electronic information stored in the IC card is read or new electronic information is written on the IC card. .

  Here, in Patent Document 1, for example, when a failure occurs in a card processing device and the card is jammed in the card processing device, the card is locked to prevent unauthorized removal of the card. Technology is disclosed. When the service person arrives at the site, the lock is released, the IC terminal of the card and the IC contact are brought into a non-contact state, the card is taken out of the card processing device by turning the knob, etc. Return to Even if the lock mechanism disclosed in Patent Document 1 does not exist, if the card is stuck in the card processing device for some reason, the service person does not contact the card and the IC contact as described above. Then, the card is taken out of the card processing device by turning a knob or the like and returned to the user.

JP 2005-242533 A

  However, since the series of operations by the service person described above is an artificial operation, it cannot be said that no human error occurs. That is, for example, if a service person forgets to leave the IC terminal and IC contact of the card in a non-contact state and tries to take out the card from the card processing device by turning the knob as it is, the IC contact or the card The IC terminal may be damaged and damaged.

  In addition, when performing the card lock shown in Patent Document 1 described above, the lock must be released every time the card is returned to the user, which takes time and is against the convenience of the user. .

  The present invention has been made in view of these points, and an object of the present invention is to provide a medium processing apparatus capable of preventing damage to IC terminals and IC contacts.

  In order to solve the above problems, the present invention provides the following.

(1) A transport path for transporting an IC card having an IC terminal, transport means for transporting the IC card to a predetermined communication position of the transport path, and the IC of the IC card transported to the predetermined communication position An IC contact that enables communication with the IC card in contact with the terminal, a detection unit that detects a displacement when the IC card is out of the predetermined communication position, and the detection unit A release means for releasing contact between the IC terminal and the IC contact when an IC card misalignment is detected, and the detection means is an encoder for detecting a pulse corresponding to driving of the transport means. There is provided a medium processing apparatus.

  According to the present invention, the medium processing apparatus can communicate with the IC card by contacting the IC card of the IC card transported to the transport path, the IC card transporting means, and the IC card transported to the predetermined communication position. IC contact to be detected, a detecting means for detecting a displacement when the IC card is out of a predetermined communication position, and a release for releasing the contact between the IC terminal and the IC contact when the displacement of the IC card is detected. Therefore, when the IC card is misaligned, the contact between the IC terminal of the IC card and the IC contact can be released by the releasing means.

  Therefore, it is possible to prevent the IC card from moving as it is in a state where the IC terminal and the IC contact of the IC card are in contact with each other, thereby preventing the IC terminal or the IC contact from being damaged and damaged.

  In particular, even if a human error caused by a service person occurs (that is, even if the IC terminal of the IC card and the IC contact are forgotten to be in a non-contact state), the IC terminal or the IC contact is damaged and damaged. Can be prevented. Further, since the present invention does not require unlocking as in the above-mentioned Patent Document 1, it can contribute to the convenience of the user when returning the card.

The detecting means is an encoder for detecting a pulse corresponding to driving of the conveying means.

According to the present invention, the detection means described above is an encoder that detects a pulse corresponding to the driving of the transport means. Therefore, if this encoder is already built in, the detection means is provided separately. There is no need for incorporation, which can contribute to cost reduction and simplification of the manufacturing process. Further, for example, by using an existing encoder, it is possible to prevent a program for executing detection by the detection means from being complicated, and to improve versatility.

(2) having a drive source for driving the IC contact so as to be close to the IC terminal, and the release means detects the position of the IC card when the detection means detects the drive source. The medium processing apparatus is characterized in that the driving of the medium is released.

According to the present invention, there is provided a drive source for driving the above-described IC contact so as to be close to the IC terminal, and when the displacement of the IC card is detected by the above-described release means, the drive source is driven. Since the release of the IC card is detected, the drive of the drive source is released and the IC contact is automatically separated from the IC terminal. Thereby, it is possible to prevent the IC terminal or the IC contact from being damaged and damaged more reliably.

( 3 ) The medium processing apparatus, wherein the release means determines the displacement of the IC card when the encoder detects a pulse greater than or equal to a reference number within a predetermined time.

  According to the present invention, when the encoder described above detects a pulse greater than or equal to the reference number within a predetermined time, the IC card position deviation is determined. Therefore, by setting this reference number to an optimum value, More precisely, the IC terminal or the IC contact can be prevented from being damaged and broken.

( 4 ) The drive source is a solenoid, and when the detection pulse of the encoder is equal to or greater than a reference pulse within the predetermined time, the energization to the solenoid is stopped and the IC terminal contacts the IC contact. The medium processing apparatus characterized by canceling.

  According to the present invention, the encoder drive source described above is a solenoid, and when the encoder detection pulse is equal to or greater than the reference pulse within a predetermined time, the energization of the solenoid is stopped and the IC terminal and the IC contact point are contacted. Therefore, it is possible to more appropriately prevent the IC terminal or the IC contact from being damaged or damaged by adjusting the reference pulse to an optimum value.

( 5 ) A transport path for transporting an IC card having an IC terminal, transport means for transporting the IC card to a predetermined communication position of the transport path, and the IC of the IC card transported to the predetermined communication position An IC contact that enables communication with the IC card in contact with the terminal, a detection unit that detects a displacement when the IC card is out of the predetermined communication position, and the detection unit when positioning the IC card is detected, and a release means for releasing the contact between the IC terminal and the IC contact, said detecting means, Tsu photosensor der to detect the edge of the IC card When the end of the IC card is detected by the photo sensor in a state where the IC contact is in contact with the IC terminal of the IC card conveyed to the predetermined communication position, the release is performed. Medium processing apparatus characterized by releasing the contact with the IC contact and the IC terminal by stage.

  According to the present invention, the detection means described above is a photosensor that detects the edge of the IC card. Therefore, in a medium processing apparatus that already incorporates a photosensor, the photosensor is effective. It can be utilized, and the cost increase of the detection means can be prevented.

  (7) A transport path for transporting an IC card having an IC terminal, transport means for transporting the IC card to a predetermined communication position of the transport path, and the IC of the IC card transported to the predetermined communication position An IC contact that contacts the terminal and enables communication with the IC card, detection means for detecting a displacement when the IC card deviates from the predetermined communication position, the IC terminal, and the IC A first step of determining whether or not the IC contact is in contact with the IC terminal, the control method of the medium processing apparatus having a release means for releasing the contact with the contact; A second step for determining whether or not the transport means is operating according to the determination result of the first step, and a positional deviation of the IC card by the detection means according to the determination result of the second step. A third step of determining whether or not the IC card has been detected, and a fourth step of releasing the contact between the IC terminal and the IC contact when a displacement of the IC card is detected. Method for controlling a media processing apparatus.

  According to the present invention, the medium processing apparatus is provided with release means for releasing the contact between the IC terminal of the IC card and the IC contact, and it is determined by this release means whether the IC contact is in contact with the IC terminal. In accordance with the determination result, it is determined whether or not the conveying means is operating, and the contact between the IC terminal and the IC contact is released when the displacement of the IC card is detected according to the determination result. Therefore, it is possible to prevent the IC card from moving while the IC terminal of the IC card and the IC contact are in contact with each other, and to prevent the IC terminal or the IC contact from being damaged and damaged. Can do.

  As described above, according to the present invention, when the IC card should not move, when the IC card position shift is detected, the contact between the IC terminal and the IC contact is released. , Damage to IC terminals and IC contacts can be prevented. Moreover, since it is not accompanied by a special card lock etc., it can contribute to a user's convenience.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a side sectional view showing main components of a card reader 1 according to an embodiment of the present invention. FIG. 2 is an external view of the IC card 100 inserted into the card reader 1. The card reader 1 shown in FIG. 1 is a device incorporated in an ATM (host) serving as a host device, and is connected to a host computer (not shown). The card reader 1 shown in FIG. 1 is a multi-function machine that can handle both the magnetic card and the IC card 100. Therefore, the IC terminal 101 and the magnetic stripe 102 are exposed and formed on the IC card 100 shown in FIG.

  1 and 2, the card reader 1 includes a card insertion port 25 that serves as an IC card 100 intake port, a transport path 20 that transports the IC card 100 having the IC terminal 101, and a transport path 20 that transports the IC card 100. It is possible to communicate with the IC card 100 by making contact with the IC terminal 101 of the IC card 100 transported to the predetermined communication position and the transport means (the driving roller 22 and the driven roller 23, etc.) IC contact block mechanism 10 (to be described later, IC contact 12 of IC contact block mechanism 10 contacts IC terminal 101) and magnetic stripe 102 on IC card 100 are brought into sliding contact with IC card 100. And a magnetic head 36 for performing a read / write process.

  The IC contact block mechanism 10 mainly includes an IC contact block 11 that makes contact with the IC terminal 101 of the IC card 100 to exchange signals, and an IC contact block that moves the IC contact block 11 to the IC terminal 101 so as to be contactable and detachable. Separating means 13.

  The IC contact block 11 includes a plurality of IC contacts 12 arranged toward the conveyance path 20 in order to actually contact the IC terminal 101 on the IC card 100. Further, the IC contact block 11 is supported by the IC contact contacting / separating means 13 and faces the conveyance path 20. The IC contact contacting / separating means 13 can be moved toward and away from the IC card 100. The IC contact 12 is brought into contact with and separated from the surface of the IC card 100 to exchange signals. The IC contact block 11 is provided with an IC card processing circuit 15 (a substrate thereof) for controlling signal exchange with the IC card 100, and one end of the IC contact 12 is electrically connected to the IC card processing circuit 15. ing.

  The IC contact contacting / separating means 13 includes a rotating arm 17 for bringing the IC contact block 11 into contact with and separating from the IC terminal 101 of the IC card 100, and a drive source (solenoid 14) for driving the rotating arm 17. ing. In this embodiment, the rotating arm 17 and the solenoid 14 are used as the IC contact contacting / separating means 13, but the IC contact block 11 can be brought into contact with and separated from the IC terminal 101 of the IC card 100. Any mechanism is possible. In the present embodiment, the solenoid 14 is used as a drive source for driving the IC contact 12 so as to be close to the IC terminal 101. However, any other drive source capable of realizing such a function may be used. It can be anything.

  The rotating arm 17 is provided inside the frame 18 so as to be rotatable around a fulcrum 19. The IC contact block 11 is attached to one end side, and the plunger 16 and the pin of the solenoid 14 are connected to the other end side. Are combined.

  The solenoid 14 rotates the rotating arm 17 by reciprocating the plunger 16 linearly. Although not specifically shown in FIG. 1, the plunger 16 is urged in a protruding direction by a coil spring. While the solenoid 14 is not energized, the plunger 16 protrudes by the elastic force to connect the IC contact block 11 to the IC. While being separated from the card 100 (or the conveyance path 20), when energized, the IC contact block 11 is brought close to the IC card 100 by retracting into the casing of the solenoid 14. Therefore, when the solenoid 14 is de-energized, the drive of the solenoid 14 is released, and the IC contact block 11 is automatically separated from the IC card 100.

  The IC contact 12 is a contact terminal for communicating with the IC terminal 101 of the IC card 100 to exchange signals and perform communication. The IC contact 12 is constituted by a plurality of coil springs and the like arranged so as to correspond to the standard of the IC card 100. Further, the IC contacts 12 are arranged in, for example, two rows in a direction perpendicular to the traveling direction of the IC card 100, and are electrically connected to the IC card processing circuit 15 (substrate) by soldering or the like. Each of the plurality of coil springs constituting the IC contact 12 has a wedge shape, and is formed of a member that can be bent at the time of contact so as to contact the IC terminal 12 more reliably.

  On the other hand, the transport means described above has a drive motor 21, a drive roller 22, and a driven roller 23 disposed opposite to the drive roller 22 across the transport path 20, and is close to the card insertion slot 25. The drive roller 22 on the side and the drive roller 22 on the side close to the IC contact block mechanism 10 are connected by a transmission belt 24.

  The driven roller 23 on the side close to the IC contact block mechanism 10 is connected to the knob roller 26 by the transmission belt 28, and the knob 27 is provided at a position facing the knob roller 26 across the conveyance path 20. Yes. The knob 27 is for taking out the card reader 1 from the card reader 1 when a failure occurs in the card reader 1 and the IC card 100 is clogged in the card reader 1. Specifically, when the service person turns the knob 27 to the left, the IC card 100 is taken into the back (in the direction in which the IC contact block mechanism 10 exists), and when the knob 27 is turned to the right, the IC card 100 is taken. Is discharged (taken out) toward the front (in the direction in which the card insertion slot 25 exists).

  Here, the card reader 1 according to the present embodiment is provided with an encoder 34 that detects a positional deviation when the IC card 100 deviates from a predetermined communication position (position facing the IC contact block 11). Specifically, in this embodiment, an optical encoder 34 is employed, and this encoder 34 is an attached roller (not shown) in which a plurality of light transmitting holes are discretely formed in the circumferential direction. have. Further, when the attached roller rotates, predetermined detection light is intermittently blocked by a plurality of light transmitting holes (not shown). The encoder 34 detects the intermittent change of the detection light with a light receiving element or the like and converts it into an electrical pulse.

  Therefore, the accessory roller is made to face the conveyance path 20 and the accessory roller rotates when the driving roller 22 or the like rotates, that is, when the IC card 100 moves, thereby driving (driving) the conveying means. The pulse corresponding to the rotation of the roller 22 or the like can be detected. As a result, it is possible to detect that the IC card 100 has deviated from the predetermined communication position and has been displaced.

  The optical encoder 34 is an example of “detecting means”, and any other one may be adopted. For example, even if an optical encoder 34 is not provided, if an encoder is already incorporated, for example, for detecting the conveyance speed of the IC card 100 or for other motor rotation control, the existing encoder is used. An encoder can also be used. Further, not only an optical encoder such as an encoder without an attached roller, a photo sensor for detecting the end of the IC card 100, but also a magnetic or lever encoder or a position sensor can be used. Further, the detection means is not limited to its type, but may be any location. In FIG. 1, it is arranged near the center of the card reader 1. However, the IC card 100 may be located anywhere as long as it can detect that the IC card 100 has deviated from a predetermined communication position and a positional deviation has occurred. It doesn't matter.

  Next, the electrical configuration of the card reader 1 will be described. FIG. 3 is a block diagram showing an electrical configuration of the card reader 1.

  In FIG. 3, the card reader 1 mainly includes a CPU 31 that integrally controls the entire apparatus, a ROM 32 that stores various programs and parameters, a RAM 33 that functions as a working area of the CPU 31, and the solenoid 14 (solenoid 14) described above. May be interposed between the CPU 31 and the encoder 34, the magnetic card processing circuit 35, the IC card processing circuit 15, the magnetic head 36, and the IC contact block. 11.

  The magnetic card processing circuit 35 processes input / output signals to / from the magnetic stripe 102 of the IC card 100 via the magnetic head 36. The IC card processing circuit 15 includes the IC contact block 11 (the IC contact 12 thereof). And processing input / output signals to / from the IC terminal 101 of the IC card 100. In particular, the IC card processing circuit 15 is generally mounted with a control IC and is controlled by the CPU 31 on the main board.

  In this embodiment, the CPU 31 (the main board) and the IC card processing circuit 15 (the board) are separate boards, but of course, a single board (for example, the main board) may be used. Further, when the encoder 34 detects a pulse corresponding to the driving of the conveying means (the drive roller 22 or the like) by the encoder 34 (that is, when the positional deviation of the IC card 100 is detected), the CPU 31 outputs a detection signal from the encoder 34. Receive.

  Here, the CPU 31 determines the positional deviation of the IC card 100 when the encoder 34 detects a pulse equal to or larger than the reference number within a predetermined time (when a detection signal to that effect is received). Then, when the positional deviation of the IC card 100 is determined, the energization to the solenoid 14 is cut off. Thereby, the contact between the IC terminal 101 of the IC card 100 and the IC contact 12 can be released.

  As described above, the CPU 31 determines the positional deviation of the IC card 100 when the encoder 34 detects the positional deviation of the IC card (for example, when the encoder 34 detects a pulse greater than the reference number within a predetermined time). Since the energization to the solenoid 14 is interrupted in order to release the contact between the IC terminal and the IC contact, it functions as an example of the “release means”. In order to realize such a function, the ROM 32, the RAM 33, and the like are also required, and these also function as an example of “release means”. Further, the “releasing means” may be understood in a broad sense, and the solenoid 14 may be included in the releasing means.

  Next, the processing operation of the card reader 1 will be described. First, the basic processing operation (processing sequence) executed in the card reader 1 will be outlined. First, as the IC card 100 inserted from the card insertion opening (gate opening) 25 is taken into the back by a conveying means such as the conveying roller 22 or the driven roller 23, the magnetic head 36 forms the magnetic stripe 102 on the IC card 100. The recorded magnetic data is read. The IC card 100 is further carried to the back, and an embossed image is captured by an embossed image reading mechanism (not shown) (the captured image is stored for confirmation of the presence or absence of forgery). When the inserted card is the IC card 100, the IC card 100 is once transported to the vicinity of the card insertion slot 25 and transported back (back) again. Then, positioning for accurately lowering the IC contact 12 is performed on the IC terminal 101 of the IC card 100. This positioning can be performed by a photo sensor or a mechanical switch (not shown). When the IC card 100 is transported to a predetermined communication position, the IC contact 12 is turned on and communication with the IC card 100 is performed. When the communication is completed, the IC contact 12 is turned off, the IC card 100 is conveyed to the card insertion slot 25, the IC card 100 is returned to the user, and the “transaction” is completed. Here, when the IC contact 12 is turned on, the IC contact 12 is in contact with the IC contact terminal 101 of the card 100, and when the IC contact 12 is turned off, the IC contact 12 and the IC contact terminal of the card 100 are turned on. 101 is in a non-contact state.

  Here, when some kind of trouble occurs in such a series of processes, the “transaction” is stopped and the IC card 100 is returned to the user, but when the IC card 100 cannot be automatically returned. It is necessary to call a service person and take out the IC card 100 from the card reader 1 and return it to the user. At this time, the service person turns the knob 27 (see FIG. 1) to take out the IC card 100 from the card reader 1 and returns it to the user.

  If a failure occurs with the IC contact 12 lowered, it is necessary to raise the IC contact 12 by a command (only when possible) or turn off the power of the card reader 1 prior to this operation. Yes (when the power is turned off, the IC contact 12 is turned off). If this is forgotten, the IC card 100 may be damaged or the IC contact 12 may be damaged.

  Therefore, even if the card reader 1 according to the present embodiment forgets such an operation and tries to take out the IC card 100, the movement of the IC card 100 is detected by the encoder 34, and the IC contact 12 Can be automatically turned off to prevent the IC contact 12 from being damaged. Hereinafter, the process of automatically turning off the IC contact 12 will be described in detail with reference to FIG. FIG. 4 is a flowchart showing the flow of processing (partial) executed in the card reader 1.

  In FIG. 4, first, the CPU 31 determines whether or not a command operation for the IC card processing circuit 15 is being performed (step S1). If the command is being operated (step S1: YES), this subroutine is terminated. On the other hand, if the command operation is not in progress (step S1: NO), it is next determined whether or not the IC card 100 is in the transport path 20 and the IC contact 12 is ON (step S2). Specifically, it is determined whether or not the solenoid 12 is energized. If the IC contact 12 is not turned on (step S2: NO), there is no damage to the IC terminal 101 or the IC contact, and the present subroutine is terminated. On the other hand, if the IC contact 12 is ON (step S2: YES), the IC terminal 101 or the IC contact or the like may be damaged, and the process proceeds to step S3. In the process of step S3, the CPU 31 determines whether or not the drive motor 21 is stopped. If the drive motor 21 is moving (step S3: NO), it means that communication with the IC card 100 is not being made, and thus this subroutine is terminated. On the other hand, if the drive motor 21 is not moving (step S3: YES), it is during communication with the IC card 100, immediately before communication, or immediately after communication, so the process proceeds to step S4.

  In the process of step S4, it is determined whether or not the IC card 100 has been moved. As described above, this is determined by whether the CPU 31 receives the detection signal from the encoder 34 and the encoder count during the specified time is greater than or equal to the specified value. If the CPU 31 determines that the IC card 100 has not been moved (step S4: NO), the IC card 100 has not been displaced, and thus this subroutine is terminated. On the other hand, when it is determined that the IC card 100 has been moved (step S4: YES), the IC card 100 has been misaligned, and thus the IC card 100 is cut (step S5). Specifically, the clock and current supplied to the IC card are disconnected. As described above, when the energization of the solenoid 14 is interrupted, the IC contact 12 is turned off (step S6).

  Thus, the CPU 31 determines whether or not the IC contact 12 is in contact with the IC terminal 101 (step S2 in FIG. 4), and the conveying means (driving roller) according to the determination result of the first step. 22) (step S3 in FIG. 4) and whether or not the encoder 34 has detected the positional deviation of the IC card 100 according to the determination result of the second step. The third step for determining (step S4 in FIG. 4) and the fourth step for releasing the contact between the IC terminal 101 and the IC contact 12 when the positional deviation of the IC card 100 is detected (step S5 in FIG. 4). According to the control method including step S6), the IC card 100 moves while the IC terminal 101 of the IC card 100 and the IC contact 12 remain in contact with each other. Can be prevented, it is possible to prevent the turn of IC terminals 101 or IC contacts 12 may be damaged damaged.

  Note that the processing shown in FIG. 4 may be executed at intervals of 1 ms, for example. Thereby, it is possible to perform an optimal card movement determination (determination of whether or not the IC card 100 has been displaced) while suppressing an unnecessary increase in the processing load on the CPU 31 due to the repeated processing. Also, the encoder count for card movement determination is cleared within a specified time. For example, when the IC card 100 moves 0.5 mm in about 200 ms. This is to prevent accumulation of counts (unnecessary count-up) due to vibration of the card reader 1. Therefore, there is no reaction when the IC card 100 moves slowly. The time and count value are determined from the operating vibration conditions in the specification and the actual operational feeling.

  Also, in the present invention, the IC contact 12 is raised by detecting the card misalignment by using the encoder 34 and shutting off the energization of the solenoid 14. Phenomenon of disengagement (that is, when the IC contact 12 is detached from the corresponding pad of the IC terminal 101 and is in contact with another pad, a current value greatly different from the current value during normal operation occurs when the current supply state is present. It is also possible to detect the positional deviation of the IC card from the current detection mechanism and raise the contact 12.

  As described above, the present invention is useful as a device that can prevent breakage of IC terminals and IC contacts.

It is side surface sectional drawing which shows the main components of the card reader which concerns on embodiment of this invention. 1 is an external view of an IC card inserted into a card reader 1. FIG. It is a block diagram which shows the electric constitution of a card reader. It is a flowchart which shows the flow of the process (part) performed in a card reader.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Card reader 10 IC contact block mechanism 11 IC contact block 12 IC contact 13 Contact contact / separation means 14 Solenoid 15 IC card processing circuit 16 Plunger 17 Rotating arm 18 Frame 19 Supporting point 20 Conveyance path 21 Drive motor 22 Drive roller 23 Drive roller 24 , 28 Transmission belt 25 Card insertion slot 26 Knob roller 27 Knob 34 Encoder 36 Magnetic head

Claims (6)

A conveyance path through which an IC card having an IC terminal is conveyed;
Transport means for transporting the IC card to a predetermined communication position on the transport path;
An IC contact that contacts the IC terminal of the IC card conveyed to the predetermined communication position and enables communication with the IC card;
Detecting means for detecting a displacement when the IC card is out of the predetermined communication position;
A release means for releasing contact between the IC terminal and the IC contact when the detection means detects a displacement of the IC card ,
The medium processing apparatus , wherein the detection unit is an encoder that detects a pulse corresponding to driving of the transport unit . A driving source for driving the IC contact to be close to the IC terminal;
The medium processing apparatus according to claim 1, wherein the release unit releases the drive of the drive source when the detection unit detects a displacement of the IC card. 3. The medium processing apparatus according to claim 1, wherein the canceling unit determines a displacement of the IC card when the encoder detects a pulse equal to or larger than a reference number within a predetermined time. The drive source is a solenoid, and when the detection pulse of the encoder is equal to or greater than a reference pulse within the predetermined time, the energization to the solenoid is stopped and the contact between the IC terminal and the IC contact is released. The medium processing apparatus according to claim 2 or 3, A conveyance path through which an IC card having an IC terminal is conveyed;
Transport means for transporting the IC card to a predetermined communication position on the transport path;
An IC contact that contacts the IC terminal of the IC card conveyed to the predetermined communication position and enables communication with the IC card;
Detecting means for detecting a displacement when the IC card is out of the predetermined communication position;
A release means for releasing contact between the IC terminal and the IC contact when the detection means detects a displacement of the IC card,
It said detecting means, I photosensor der to detect the edge of the IC card,
When the end of the IC card is detected by the photo sensor in a state where the IC contact is in contact with the IC terminal of the IC card conveyed to the predetermined communication position, the IC terminal is released by the releasing means. And the IC contact are released . A transport path for transporting an IC card having an IC terminal; transport means for transporting the IC card to a predetermined communication position of the transport path; and contact with the IC terminal of the IC card transported to the predetermined communication position An IC contact that enables communication with the IC card, a detection unit that detects a displacement when the IC card is out of the predetermined communication position, and the IC terminal and the IC contact. A medium processing apparatus control method comprising: release means for releasing contact;
A first step in which the releasing means determines whether or not the IC contact is in contact with the IC terminal;
A second step of determining whether or not the transport means is operating according to the determination result of the first step;
A third step of determining whether or not a displacement of the IC card is detected by the detection means according to a determination result of the second step;
And a fourth step of releasing the contact between the IC terminal and the IC contact when a displacement of the IC card is detected.

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