JP6492984B2 - Automatic transaction equipment - Google Patents

Description

  The present invention relates to an automatic transaction apparatus.

  2. Description of the Related Art Conventionally, automatic transaction apparatuses that automatically perform transactions in accordance with user operations have become widespread. In such an automatic transaction apparatus, a transaction is executed based on a reading result of magnetic data recorded on a medium inserted by a user. Here, a technique for generating a magnetic field (hereinafter also referred to as “disturbing magnetic field”) from a magnetic field generator in order to prevent unauthorized acquisition of magnetic data is disclosed (for example, see Patent Document 1).

JP 2001-067524 A

  However, the disturbing magnetic field may be detected by the magnetic sensor that detects the medium insertion. In such a case, since the detection accuracy of medium insertion by the magnetic sensor is lowered, it is difficult to generate a disturbing magnetic field from the magnetic field generator until the card is detected by the magnetic sensor. Therefore, there is a possibility that illegal reading of magnetic data recorded on the medium cannot be effectively prevented.

  Therefore, it is desired to provide a technique that more effectively prevents unauthorized reading of magnetic data recorded on a medium.

  In order to solve the above problem, according to an aspect of the present invention, a magnetic sensor provided between a medium insertion opening and a magnetic head, and a position closer to the medium insertion opening than the magnetic sensor are provided. When the first sensor, the magnetic field generator that generates a magnetic field in the space, and the medium is inserted from the medium insertion port, the magnetic sensor is in the detection state after the first sensor transits to the detection state. There is provided an automatic transaction apparatus comprising: a control unit that controls the magnetic field generator to stop the magnetic field until a transition is made.

  The control unit controls the magnetic field generator to generate a magnetic field until a predetermined first timing comes after the magnetic sensor transitions to a detection state, and after the first timing has arrived The magnetic field generator may be controlled to stop the magnetic field.

  The first timing may be a timing at which a rear end of the medium in the insertion direction is detected by the first sensor.

  The control unit may cause the magnetic head to perform an operation of reading data from the medium or an operation of writing data to the medium after the first timing has arrived.

  The control unit may execute a predetermined error process when the medium is inserted from the medium insertion port and the first sensor maintains a detection state for a predetermined time. .

  The predetermined error processing may include at least one of an operation of stopping the automatic transaction apparatus, an operation of transmitting an alarm signal to a host device, and an operation of closing a shutter.

  The control unit controls the magnetic field generator to stop the magnetic field until a predetermined second timing arrives when the medium is ejected from the medium insertion port, and the second timing arrives. Then, the magnetic field generator may be controlled to generate a magnetic field.

The automatic transaction apparatus includes a second sensor between the magnetic sensor and the magnetic head,
The second timing may be a timing at which the rear end of the medium is detected by the second sensor.

  The control unit may control the magnetic field generator to stop the magnetic field when it is detected that the medium is taken out from the medium insertion port.

  The magnetic field generator may generate a magnetic field in a space including a part or all of a detectable range of the magnetic sensor.

  As described above, according to the present invention, illegal reading of magnetic data recorded on a medium can be more effectively prevented.

It is a schematic side view which shows the example of a structure of the card reader which the automatic transaction apparatus which concerns on embodiment of this invention has, and its periphery. It is a flowchart which shows the example of operation | movement at the time of card insertion by an automatic transaction apparatus. It is a flowchart which shows the example of operation | movement at the time of card insertion by an automatic transaction apparatus. It is a flowchart which shows the example of the operation | movement at the time of card | curd discharge by an automatic transaction apparatus. It is a flowchart which shows the example of the operation | movement at the time of card | curd discharge by an automatic transaction apparatus.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the present specification and drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

  In the present specification and drawings, a plurality of constituent elements having substantially the same functional configuration are distinguished by attaching different numerals to the same reference numerals. Further, similar constituent elements of different embodiments are distinguished by attaching different alphabets after the same reference numerals. However, when there is no need to particularly distinguish each of a plurality of constituent elements having substantially the same functional configuration, only the same reference numerals are given.

(1. Background)
First, the background of the embodiment of the present invention will be described. In general, automatic transaction devices such as ATMs (Automatic Teller Machines) and CDs (Cash Dispensers) are arranged at branches of financial institutions such as banks, credit unions, post offices, etc. Yes. Then, the user can operate the automatic transaction apparatus himself and perform financial transactions such as deposit, withdrawal, transfer, and transfer.

  First, when performing a financial transaction using an automatic transaction apparatus, the user inserts his / her cash card (hereinafter also simply referred to as “card”) into a card insertion slot provided on the front surface of the casing of the automatic transaction apparatus. Insert. Then, when the user operates the numeric keypad displayed on the display device with an input function that also has an input function (for example, a touch sensor type keyboard panel), the personal authentication is performed.

  However, in recent years, the magnetic data reader etc. have been crafted to attach inside the card insertion slot etc., and the magnetic data recorded on the magnetic stripe of the card inserted into the card insertion slot by the user is read by the magnetic data reader. There are many acts of unauthorized acquisition. For example, such an act enables an illegal act of impersonating the user and withdrawing money from the user's account.

  Therefore, a technique for generating a disturbing magnetic field from a magnetic field generator in order to prevent such illegal acquisition of magnetic data has been disclosed (for example, Japanese Patent Laid-Open No. 2001-067524). The automatic transaction apparatus is provided with a magnetic card reader having recording and reproducing magnetic heads therein, and the generation of disturbing magnetic fields is generated when the card is inserted and ejected so as not to hinder the operation of the magnetic head. It is common.

  Here, when the card is inserted, the magnetic sensor for card insertion detection (hereinafter also simply referred to as “magnetic sensor”) detects the tip in the card insertion direction (the direction from the card insertion slot to the magnetic head) and is constant. It is common to generate a disturbing magnetic field from a magnetic field generator for a period of time. Also, when the card is ejected, the trailing edge of the card ejection direction is detected by the photosensor to generate a disturbing magnetic field from the magnetic field generator for a predetermined time after the trailing edge of the card is ejected (direction from the magnetic head to the card insertion slot). It is common to generate.

  However, when the interfering magnetic field generated by the magnetic field generator is detected by the magnetic sensor, the accuracy of detection of the leading end in the card insertion direction by the magnetic sensor is lowered, so that the leading end in the card inserting direction is reduced by the magnetic sensor. Until it is detected, it is difficult to generate a disturbing magnetic field from the magnetic field generator. Therefore, there is a possibility that illegal reading of magnetic data recorded on the card cannot be effectively prevented until the leading end in the card insertion direction is detected by the magnetic sensor.

  In addition, when the disturbing magnetic field is generated after the front end of the card insertion direction is detected by the magnetic sensor, the detection accuracy of the rear end of the card insertion direction by the magnetic sensor is lowered. Therefore, it is common to stop the disturbing magnetic field when a predetermined time elapses after the leading edge in the card insertion direction is detected by the magnetic sensor.

  At this time, if there is a delay in the transport of the card (for example, if the user gives the card a force that prevents the card from being taken into the automatic transaction apparatus 1), the card is placed outside the card insertion slot. May still stop the disturbing magnetic field even though it still protrudes. Therefore, there is a possibility that illegal reading of magnetic data recorded on the card cannot be effectively prevented.

  Therefore, in view of the background as described above, the embodiment of the present invention mainly proposes a technique that can effectively prevent illegal reading of magnetic data recorded on a card.

  In the following, a case where a card is inserted into an automatic transaction apparatus will be described as an example. However, the medium inserted into the automatic transaction apparatus may be a medium having a magnetic stripe on which magnetic data is recorded. For example, a card other than a credit card may be inserted into the automatic transaction apparatus, or a medium other than the card (for example, a passbook).

  In the embodiment of the present invention, an automatic teller machine (ATM) will be described as an example of an automatic transaction apparatus. However, the automatic transaction apparatus according to the embodiment of the present invention is an example of such an automatic transaction apparatus. It is not limited. The automatic transaction apparatus according to the embodiment of the present invention is not limited to a specific apparatus as long as a medium having a magnetic stripe in which magnetic data is recorded is inserted and a transaction is performed based on the inserted medium.

(2. Explanation of configuration)
Then, the structure of the automatic transaction apparatus which concerns on embodiment of this invention is demonstrated. FIG. 1 is a schematic side view showing a configuration example of a card reader and its surroundings included in an automatic transaction apparatus according to an embodiment of the present invention. As shown in FIG. 1, the automatic transaction apparatus 1 includes a photo sensor (first sensor) (hereinafter referred to as “front side sensor”) 21 in addition to the magnetic card reader 10 and the front panel 30. A card insertion slot 31 is formed in the front panel 30.

  The magnetic card reader 10 includes a shutter 12, a magnetic field generator 13, a take-in roller pair 14, a magnetic head 15, a transport roller pair 16, a transport roller pair 17, a control unit 18, a magnetic sensor 22, and a photo. Sensor (second sensor) (hereinafter referred to as “back sensor”) 23. In the embodiment of the present invention, photo sensors are used as the front side sensor 21 and the back side sensor 23, but other sensors may be used instead of the photo sensor.

  The front panel 30 is provided on the front surface of the automatic transaction apparatus 1 (that is, the surface facing the user who operates the automatic transaction apparatus 1). The card insertion slot 31 is formed in the front panel 30 so that the user can insert the card CA into the automatic transaction apparatus 1. The magnetic card reader 10 is provided at a position where the card CA inserted from the card insertion slot 31 by the user is inserted.

  When the magnetic head 15 detects a card CA having a magnetic stripe on which magnetic data is recorded, the magnetic head 15 can read or write data on the card CA by magnetism. Data (for example, an account number) read by the magnetic head 15 may be used for various transactions. The data written by the magnetic head 15 may be data according to the transaction result.

  The magnetic sensor 22 is provided between the card insertion slot 31 and the magnetic head 15. The magnetic sensor 22 has a state in which the detected value exceeds the threshold for the magnetic sensor (hereinafter also referred to as “detected state” and “magnetic sensor is ON”) and a state in which the detected value is lower than the threshold for the magnetic sensor (hereinafter referred to as “non- State transition between “detection state” and “magnetic sensor is OFF”).

  The front sensor 21 is provided at a position closer to the card insertion slot 31 than the magnetic sensor 22. For example, the front side sensor 21 may be provided in the vicinity of the card insertion slot 31 of the front panel 30 as shown in FIG. The near-side sensor 21 is in a state where the detected value exceeds the threshold for the near-side sensor (hereinafter also referred to as “detected state” and “the near-side sensor is ON”) and the detected value is below a predetermined threshold for the near-side sensor. State transition is performed between states (hereinafter also referred to as “non-detection state” and “front side sensor is OFF”).

  Further, the front side sensor 21 inserts the card CA when the leading end in the card CA insertion direction (the direction from the card insertion slot 31 to the magnetic head 15 and rightward in FIG. 1) reaches the detectable range. It is possible to detect the tip of the direction. Similarly, the front side sensor 21 can detect the rear end in the insertion direction of the card CA when the rear end in the insertion direction of the card CA reaches the detectable range.

  The magnetic field generator 13 generates a disturbing magnetic field in the three-dimensional space in order to prevent unauthorized acquisition of magnetic data recorded on the magnetic stripe of the card CA. The position where the magnetic field generator 13 is provided is not limited, but in the embodiment of the present invention, the magnetic field generator 13 generates a magnetic field in a space including a part or all of the detectable range of the magnetic sensor 22. Assume that the magnetic field generator 13 and the magnetic sensor 22 are close to each other.

  The back sensor 23 is provided between the magnetic sensor 22 and the magnetic head 15. The back sensor 23 has a state in which the detection value exceeds the threshold for the back sensor (hereinafter also referred to as “detection state” and “the back sensor is ON”) and the detection value is below a predetermined threshold for the back sensor. State transition is performed between states (hereinafter also referred to as “non-detection state” and “back side sensor is OFF”).

  In addition, the rear sensor 23 has the tip in the card CA ejection direction (the direction from the magnetic head 15 to the card insertion slot 31 and leftward in FIG. 1) has reached the detectable range of the rear sensor 23. In this case, it is possible to detect the leading end of the card CA in the discharge direction. Similarly, the rear sensor 23 can detect the rear end of the card CA in the discharge direction when the rear end of the card CA in the discharge direction reaches the detectable range of the back sensor 23.

  The shutter 12 can transition between a closed state in which the card insertion slot 31 is closed and an open state in which the card insertion slot 31 is opened. If the shutter 12 is in the closed state, the insertion of the card CA into the card insertion slot 31 is prevented by the shutter 12. On the other hand, if the shutter 12 is in the open state, the card CA can be inserted into the card insertion slot 31.

  Each of the take-in roller pair 14, the conveyance roller pair 16, and the conveyance roller pair 17 can feed the card CA in the insertion direction by rotating in the rotation direction corresponding to the insertion direction while gripping the card CA. On the other hand, each of the take-in roller pair 14, the transport roller pair 16, and the transport roller pair 17 can feed the card CA in the discharge direction by rotating in the rotation direction corresponding to the discharge direction while gripping the card CA. .

  The control unit 18 has a function of controlling the overall operation of the automatic transaction apparatus 1 including the front side sensor 21 and the magnetic card reader 10.

(3. Explanation of operation)
Then, the example of operation | movement of the automatic transaction apparatus 1 which concerns on embodiment of this invention is demonstrated. 2 and 3 are flowcharts showing an example of an operation at the time of card insertion by the automatic transaction apparatus 1. An example of the operation at the time of card insertion by the automatic transaction apparatus 1 will be described with reference to FIGS. 2 and 3 (also appropriately referring to FIG. 1). In addition, the operation | movement at the time of card insertion by the automatic transaction apparatus 1 is not limited to the operation | movement shown by the flowchart of FIG. 2 and FIG. In the following description, an object other than the card CA may be called a foreign object.

  First, when the initialization process in the automatic transaction apparatus 1 is completed before the card CA is inserted by the user (step S11), the control unit 18 causes the magnetic field generator 13 to generate a disturbing magnetic field (step S12). At this time, since the card CA has not been inserted yet, the front side sensor 21 is OFF. Subsequently, the control unit 18 determines whether or not the front side sensor 21 has transitioned from OFF to ON when the card CA (or a foreign object) is brought close to the card insertion slot 31 by the user. (Step S13).

  When it is determined that the near side sensor 21 remains OFF (“No” in Step S13), the control unit 18 shifts the operation to Step S13. On the other hand, if the control unit 18 determines that the front side sensor 21 has transitioned from OFF to ON ("Yes" in step S13), the control unit 18 causes the magnetic field generator 13 to stop the disturbing magnetic field (step S14).

  According to such an operation, since the disturbing magnetic field is stopped until the magnetic sensor 22 changes from OFF to ON after the front side sensor 21 changes from OFF to ON, the insertion of the card CA by the magnetic sensor is stopped. It is possible to suppress a decrease in detection accuracy. Further, since a disturbing magnetic field is generated until the front sensor 21 changes from OFF to ON, it is possible to prevent unauthorized reading of magnetic data. Therefore, these operations can more effectively prevent unauthorized reading of magnetic data recorded on the card CA.

  Subsequently, the control unit 18 determines whether or not the near side sensor 21 is ON for a predetermined time (step S15). When it is determined that the near side sensor 21 is ON for a predetermined time (“Yes” in step S15), the control unit 18 determines that a foreign object has been detected by the near side sensor 21, and a predetermined error is detected. Execute the process. The error process may be any process, but may be an operation of stopping the automatic transaction apparatus 1 or an operation of transmitting an alarm signal to the host apparatus or the like. Further, the shutter 12 may be closed so that the card cannot be inserted. For example, if a magnetic data reader is attached as a detected foreign object, the magnetic data on the card can be read if the card is inserted if the card can be inserted even if the automatic transaction apparatus 1 is stopped. Because there is a possibility.

  If the automatic transaction apparatus 1 is stopped, the shutter 12 remains closed even when the magnetic sensor 22 is turned on, and unauthorized reading of magnetic data recorded on the card CA can be prevented. Also, if an alarm signal is transmitted to the host device or the like, the supervisor who perceived the alarm signal received by the host device can check the automatic transaction apparatus 1 and is recorded in the card CA. It becomes possible to prevent unauthorized reading of magnetic data.

  On the other hand, if the control unit 18 determines that the time for which the near side sensor 21 is ON does not exceed the predetermined time (“No” in step S15), the card CA is further inserted in the back by the user. Then, it is determined whether or not the magnetic sensor 22 is turned on (step S17). When it is determined that the magnetic sensor 22 remains OFF (“No” in Step S17), the control unit 18 shifts the operation to Step S15.

  On the other hand, when it is determined that the magnetic sensor 22 has been turned on (“Yes” in step S17), the control unit 18 causes the magnetic field generator 13 to generate a disturbing magnetic field (step S18) and open the shutter 12 (step S21). Then, the rotation of the take-in roller pair 14, the transport roller pair 16, and the transport roller pair 17 is started in the rotation direction corresponding to the insertion direction (step S22). When the card CA enters the gap between the take-in roller pair 14, the take-in roller pair 14 rotates in a rotation direction corresponding to the insertion direction while gripping the card CA, thereby sending out the card CA in the insertion direction.

  Subsequently, the control unit 18 determines whether or not the rear sensor 21 detects the rear end in the card CA insertion direction (step S23). Note that the control unit 18 may determine whether or not a predetermined first timing has arrived instead of determining whether or not the rear end of the card CA is detected by the front side sensor 21. . If the front side sensor 21 determines that the rear end in the card CA insertion direction is not detected (“No” in step S23), the control unit 18 shifts the operation to step S23.

  On the other hand, when the control unit 18 determines that the rear end of the insertion direction of the card CA is detected by the front side sensor 21 (“Yes” in step S23), the controller 18 prepares for data reading or data writing with respect to the magnetic head 15. Therefore, the disturbing magnetic field is stopped by the magnetic field generator 13 (step S24).

  According to this operation, since the disturbing magnetic field is stopped when the rear end of the card CA is detected by the front side sensor 21, the card CA can be transported even if there is a delay in the conveyance of the card CA. The disturbing magnetic field is stopped after it is not left outside the insertion port 31. As a result, unauthorized reading of magnetic data recorded on the card CA can be more effectively prevented.

  Subsequently, the control unit 18 determines whether or not the card CA is detected by the magnetic head 15 (step 25). When it is determined that the card CA is not detected by the magnetic head 15 (“No” in step S25), the control unit 18 shifts the operation to step S25.

  On the other hand, when it is determined that the card CA has been detected by the magnetic head 15 (“Yes” in step S25), the control unit 18 causes the magnetic head 15 to perform data reading or data writing on the card CA (S26). Thereafter, the control unit 18 stops the rotation of the take-in roller pair 14, the transport roller pair 16, and the transport roller pair 17 (step S27). The example of the operation at the time of card insertion by the automatic transaction apparatus 1 has been described above.

  FIG. 4 and FIG. 5 are flowcharts showing an example of the card discharging operation by the automatic transaction apparatus 1. An example of the card discharging operation by the automatic transaction apparatus 1 will be described with reference to FIGS. 4 and 5 (referring to FIG. 1 as appropriate). In addition, the operation | movement at the time of card | curd discharge by the automatic transaction apparatus 1 is not limited to the operation | movement shown by the flowchart of FIG. 4 and FIG.

  When the data reading or data writing to the card CA is completed, the control unit 18 starts the rotation of the take-in roller pair 14, the transport roller pair 16, and the transport roller pair 17 in the rotation direction corresponding to the discharge direction (step S31). . And the control part 18 determines whether the rear end of the discharge direction of card | curd CA was detected by the back side sensor 23 (step S32). Note that the control unit 18 may determine whether or not a predetermined second timing has arrived instead of determining whether or not the rear sensor 23 has detected the trailing end of the card CA ejection direction. .

  If it is determined by the back sensor 23 that the rear end of the card CA ejection direction has not been detected ("No" in step S32), the control unit 18 shifts the operation to step S32. On the other hand, if the control unit 18 determines that the rear end of the card CA is detected by the back sensor 23 (“Yes” in step S32), the control unit 18 causes the magnetic field generator 13 to generate a disturbing magnetic field (step S32). S33). With this operation, it is possible to prevent illegal reading of magnetic data from the protruding portion of the card insertion slot 31 to the outside.

  Subsequently, the control unit 18 determines whether or not a predetermined amount of the card CA has been discharged from the card insertion slot 31 (step S34). When it is determined that the card CA has not been discharged from the card insertion slot 31 by a predetermined amount (“No” in step S34), the control unit 18 shifts the operation to step S34.

  On the other hand, when the control unit 18 determines that the card CA has been ejected from the card insertion slot 31 by a predetermined amount (“Yes” in step S34), the control unit 18 moves the pair of take-in rollers 14 in the rotation direction corresponding to the ejection direction. The rotation of the roller pair 16 and the conveyance roller pair 17 is stopped (step S35). With this operation, the control unit 18 can wait for the card CA to be taken out from the card insertion slot 31 by the user.

  Subsequently, the control unit 18 determines whether or not the front side sensor 21 detects the removal of the card CA from the card insertion slot 31 (step S41). When the front sensor 21 does not detect removal of the card CA (“No” in step S41), the control unit 18 shifts the operation to step S41.

  On the other hand, when the removal of the card CA is detected by the front side sensor 21 (“Yes” in step S41), the control unit 18 causes the magnetic field generator 13 to stop the disturbing magnetic field (step S42), and the shutter 12 is moved. Close (step S43). The example of the operation at the time of card ejection by the automatic transaction apparatus 1 has been described above.

  As described above, according to the embodiment of the present invention, the disturbing magnetic field is stopped after the front side sensor 21 changes from OFF to ON until the magnetic sensor 22 changes from OFF to ON. Therefore, it is possible to suppress a decrease in detection accuracy of insertion of the card CA by the magnetic sensor. Further, since a disturbing magnetic field is generated until the front sensor 21 changes from OFF to ON, it is possible to prevent unauthorized reading of magnetic data. Therefore, these operations can more effectively prevent unauthorized reading of magnetic data recorded on the card CA.

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention pertains can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

  Moreover, the control part 18 for controlling the whole operation | movement of the automatic transaction apparatus 1 may be comprised by a hardware for exclusive use, or CPU (Central Processing Unit) built in the automatic transaction apparatus 1 is ROM (Read Only). It may be realized by developing a program stored in the memory (RAM) on a RAM (Random Access Memory) and executing the program. In addition to providing such a program, a storage medium storing such a program may also be provided.

DESCRIPTION OF SYMBOLS 1 Automatic transaction apparatus 10 Magnetic card reader 12 Shutter 13 Magnetic field generator 14 Capture roller pair 15 Magnetic head 16 Conveyance roller pair 17 Conveyance roller pair 18 Control part 21 Front side sensor (1st sensor)
22 Magnetic sensor 23 Back sensor (second sensor)
30 Front panel 31 Card slot CA card

Claims (10)

A magnetic sensor provided between the medium insertion slot and the magnetic head;
A first sensor provided at a position closer to the medium insertion port than the magnetic sensor;
A magnetic field generator for generating a magnetic field in space;
Control that controls the magnetic field generator to stop the magnetic field until the magnetic sensor transitions to the detection state after the first sensor transitions to the detection state when a medium is inserted from the medium insertion port And
An automatic transaction apparatus comprising: The control unit controls the magnetic field generator to generate a magnetic field until a predetermined first timing comes after the magnetic sensor transitions to a detection state, and after the first timing has arrived Controlling the magnetic field generator to stop the magnetic field;
The automatic transaction apparatus according to claim 1. The first timing is a timing at which a rear end of the medium in the insertion direction is detected by the first sensor.
The automatic transaction apparatus according to claim 2. The control unit causes the magnetic head to perform an operation of reading data from the medium or an operation of writing data to the medium after the first timing has arrived.
The automatic transaction apparatus according to claim 2. The control unit performs a predetermined error process when the medium is inserted from the medium insertion port and the first sensor has maintained a detection state for a predetermined time.
The automatic transaction apparatus according to claim 1. The predetermined error processing includes at least one of an operation of stopping the automatic transaction apparatus, an operation of transmitting an alarm signal to a host device, and an operation of closing a shutter.
The automatic transaction apparatus according to claim 5. The control unit controls the magnetic field generator to stop the magnetic field until a predetermined second timing arrives when the medium is ejected from the medium insertion port, and the second timing arrives. And then controlling the magnetic field generator to generate a magnetic field,
The automatic transaction apparatus according to claim 1. The automatic transaction apparatus includes a second sensor between the magnetic sensor and the magnetic head,
The second timing is a timing at which a trailing end of the medium is detected by the second sensor.
The automatic transaction apparatus according to claim 7. The control unit controls the magnetic field generator to stop the magnetic field when it is detected that the medium is taken out from the medium insertion port.
The automatic transaction apparatus according to claim 7. The magnetic field generator generates a magnetic field in a space including part or all of a detectable range of the magnetic sensor;
The automatic transaction apparatus according to claim 1.

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