JPH0363792A - Magnetic card processing device for taxi fare adjustment - Google Patents

Abstract

PURPOSE:To prevent a magnetic card from being forged with a wrong operation by pulling out a drawing mechanism from a box body at the time of detecting jam of the magnetic card in a card reader. CONSTITUTION:If trouble like card jam occurs, a drawing mechanism 11 is led out from an outer box to expose a card reader 15, and the jamming magnetic card is taken out with fingers or the like. The card reader 15 has a function to self-detect jam of the magnetic card, and a lock mechanism acts and the leading-out mechanism 15 cannot be led out from the outer box unless the magnetic card jams really. Since the drawing mechanism 11 can be led out only at the time of the occurrence of trouble, a wrong act like forgery is prevented.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a card reader used for reading information recorded on magnetic cards used as coupon tickets, gift certificates, cash coupons, etc., and for writing information. , a processing device used especially for taxi fare settlement, in which the card reader body can be removed from the box body only when it self-detects that a magnetic card is jammed inside the card reader. The present invention relates to a magnetic card processing device.

[Conventional technology]

Conventionally, magnetic recording means is attached to paper or plastic media such as credit cards, cash cards, ID cards, etc., and various information is recorded on this magnetic recording means to create gift certificates, cash coupons, and coupon tickets. It is becoming more and more common for people to use these as substitutes. Because it is convenient to pay for fees and services using a thin magnetic card, it has come to be used in recent years for using public telephones and purchasing train tickets. in this case,
A card that allows you to pay a fee in advance, receive a magnetic card with information corresponding to the amount written on it, and use this magnetic card as a substitute for cash for payment is called a prepaid card.

With this prepaid card type magnetic card, the amount paid in advance can be recorded as magnetic information, and each time the payment is made, the amount used is deducted from the recorded information, and the information on the remaining amount after deduction is processed. The magnetic card can be rewritten and used until the balance information becomes zero.

Unlike cash, prepaid cards are more widely used because they are convenient for paying fractional amounts and small amounts, and in recent years, prepaid cards can also be used to pay for taxi fares.

In order to process the reading or writing of information stored on such prepaid cards, a card reader (m
A prepaid card (also known as a reading/writing machine) was used, and by pushing a prepaid card through this card reader and transporting the prepaid card in a certain direction, it was possible to read the information or write the information again. . For this reason, when paying a taxi fare using a prepaid card, it is necessary to install a fare payment device with a built-in card reader inside the taxi.

Now, in the configuration of this card reader, a thin cardboard-like magnetic card must be transported, and a slit-shaped transport path is formed, and the magnetic card is transported within this transport path. I was letting it happen. however,
This conveyance path has a narrow top and bottom thickness, and it is also possible to read magnetic information.
Since the magnetic head and the magnetic card must come into contact in order to perform the writing process, the magnetic card often gets caught in the conveyance path, resulting in the phenomenon that the magnetic card becomes jammed.

This card jam is often caused by the fact that bent or deformed magnetic cards cannot be transported horizontally. Another factor is that when belts or rubber rollers are used for long periods of time to transport magnetic cards, they may wear out and slip, making it impossible for the magnetic cards to be transported accurately within the transport path. .

When such a card jam phenomenon occurs, conventionally it has been necessary to disassemble the card reader, take out the magnetic card stuck in the conveyance path, and then reassemble the card reader.

Therefore, if the magnetic card becomes jammed or caught inside the card reader, it takes a lot of time to maintain it.

Conventional magnetic card processing devices used in vending machines and retail stores can be relatively large in size, and can be easily disassembled for maintenance or inspection, and can be used as a card reader. We were able to expose the transport path inside. However, when a magnetic card processing device is installed in a narrow vehicle such as a taxi, its form must be extremely small, and the structure of the magnetic card processing device itself must be extremely complex and difficult to disassemble. It was inevitable. In addition, since the inside of a taxi is small, if a card jam occurs, disassembling the in-vehicle device for maintenance is a major undertaking. This required extremely advanced technology.

From the perspective of eliminating the complexity of maintenance, the card reader is constructed in a pull-out type and assembled so that it can be removed.In the event that a card jam occurs inside the card reader, the pull-out mechanism can be removed from the box. A magnetic card processing device for taxi fare settlement has also been proposed that can be removed from the body and a jammed magnetic card can be removed with a finger or the like.

[Problem that the invention seeks to solve]

However, most of the magnetic card processing devices have a rewriting function to process the information once read and write the remaining amount information again. For this reason, it is often easy for magnetic cards to be fraudulently used. In other words, if the card reader itself is exposed in order to easily repair a jammed card inside a small vehicle such as a taxi, it becomes easy to create counterfeit magnetic cards. After inserting a normal magnetic card into the magnetic card processing device, remove the normal magnetic card from the card reader before the calculation process is completed.
By replacing the magnetic card with another magnetic card whose balance information has become zero, valid balance information can be recorded on the magnetic card whose balance information has become zero. This is a phenomenon that inevitably occurs because the magnetic card processing device has a rewriting function.

Even worse, since taxis are always operated away from the business office, it is difficult for a third party to manage the magnetic card processing device installed inside the taxi.

For this reason, the magnetic card processing device is under the control of the driver and is not monitored, making it easy for fraud to occur. In this respect, the format differs greatly from the easy-to-manage cash registers at supermarkets and department stores, which are installed indoors and where a supervisor is always on site.

Under such circumstances, there has been a desire for a mechanism that prevents fraud by using a magnetic card processing device for taxi fare settlement.

Means for Solving Problem C] In view of the above-mentioned drawbacks, the present invention provides a box body attached to a dash board of a vehicle, a drawer mechanism combined with the box body so as to be able to be put in and taken out at the front of the box body, and a drawer mechanism of the drawer mechanism. It has a card reader that is fixed inside and can read the information on the magnetic card, and the drawer mechanism can be pulled out from the box body only when it is detected that the magnetic card is jammed inside the card reader. The present invention provides a magnetic card processing device for taxi fare settlement.

[Effect]

In the present invention, the outer box of the magnetic card processing device installed inside a taxi is open only at the front, and the outer box is fixed to a part of the vehicle body such as a dash board. A drawer mechanism can be pulled forward from this outer box, and a card reader is attached to the drawer mechanism. Therefore, in the event of a malfunction such as a card jam, the card reader is exposed by pulling out the drawer mechanism from the outer case, and the jammed magnetic card can be removed with a finger or the like. However, card readers have a function to self-detect whether a magnetic card is jammed or not, and unless a magnetic card is really jammed on the conveyance path, the locking mechanism will operate and the drawer mechanism will not be pulled out from the outer box. Therefore, the drawer mechanism can be pulled out only in the event of a failure, which can prevent fraudulent acts such as forgery.

〔Example〕 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a state in which a magnetic card processing device for taxi fare settlement according to the present invention is installed on the driver's seat side of a taxi.

In this case, a fare display meter 2 is fixed at the top center of a dash board 1 inside the taxi to display a fare according to the travel distance. A magnetic card processing device 3 is fixed to the lower part of the dash board 1 in a space where a radio, a cassette recorder, etc. are normally installed. These price display meters 2,
All of the magnetic card processing devices 3 have a cubic shape,
It is fitted into the dash board 1, leaving only the front panel exposed.

It is designed to prevent foreign objects from protruding even in the narrow interior of the car.

The charge display meter 2 and the magnetic card processing device 3 are connected by electronic wiring, and when paying the charge, the prepaid card 4 is inserted into the slot of the magnetic card processing bag ffa. be able to. That is, when the fare display meter 2 integrates the mileage and travel time and displays the fare, when the fare is settled using the prepaid card 4, the fare displayed by the fare display meter 2 is converted into electrical information and magnetically displayed. The information is transmitted to the card processing device 3. After this, insert the prepaid card 4,
If the prepaid card 4 has enough balance information to cover the fare displayed on the fare display meter 2, the fare is settled based on the recorded information, and the deducted balance is rewritten on the magnetic card. The card is ejected from the magnetic card processing device 3. At this time, if the remaining amount information stored in the prepaid card 4 is less than the fare displayed by the fare display meter 2, the difference must be paid in cash.

Next, FIG. 2 shows the external appearance of the magnetic card processing device 3 which is an embodiment of the present invention, FIG. 3 shows the state in which the drawer mechanism is pulled out, and FIG. FIG. 2 is a cross-sectional view of the central portion in the figure.

This magnetic card processing device 3 is in the form of a unit, and an outer frame R10, which forms a case-like outer frame made of strong metal or the like, is fixed to the dash board 1 with screws or the like. The front of the outer box IO has a rectangular opening, and the drawer 11 is removably inserted through this opening. The drawer section 11 is composed of a front panel 12 and side plates 13.14 connected to both sides of the back surface of the front panel, and a card reader 15 is mounted between the side plates 13.14.

The front panel 12 has a shape that closes the front opening of the outer box 10, and a numeric display 16 is attached to the upper part of the front surface to indicate the balance of the prepaid card 4, the settlement fee, etc. Also,
A slit-shaped insertion opening 17 into which the prepaid card 4 is inserted is opened at the center of the lower part of the front panel 12. Guide plates 18 and 19 having a U-shaped cross section are fixed to the left and right inner walls of the outer box 10 along the length thereof, and guide plates 18 and 19 having a U-shaped cross section are fixed to the left and right inner walls of the outer box 10, and guide plates 18 and 19 having a U-shaped cross section are fixed to the left and right inner walls of the outer box 10. A plurality of rollers 20.21 are rotatably supported at intervals, and by inserting the rollers 20.21 into the guide plate 18.19, the guide plate 13.14 is moved inside the outer box IO. It is designed to be inserted into.

Next, FIGS. 5 to 8 show the structure of the card reader 15 in detail.

FIG. 5 is a perspective view showing a state in which the drawer part 11 is pulled out from the outer box 10, FIG. 6 shows a state in which the guide cover of this card reader is lifted, and FIG. 7 is a side sectional view.
FIG. 8 is an enlarged view showing the engagement mechanism for fixing the guide lid.

The overall structure of the card reader 15 includes a flat guide board 31, side plates 32 and 33 that are closely fixed to the longitudinal sides of the guide board 31, and short sides of the guide board 31. It consists of a front plate 34 connected to the front side of side plates 32, 33 at the front. These guide boards 31. A three-dimensional frame is assembled by the side plates 32, 33 and the front plate 34.

A solenoid 71 is fixed to a rear wall inside the outer box 10, and a solenoid pin 72 actuated by the solenoid 71 is positioned so as to be movable in the vertical direction. Further, the card reader 1
5 and the rear end of the guide board 31, an engagement plate 73 projects horizontally, and an engagement hole 74 is opened in the center of the engagement plate.

The solenoid pin 72 can be detachably held in this engagement hole 74.

The upper surface of this guide board 31 is processed into a flat shape, and the prepaid card 4 is smoothly conveyed on the surface of this guide board 31. An elongated insert 35 is fixed to the center of the front surface of the front Fi 34 so as to protrude, and this insert 35 is located at a position facing the front panel I2. A horizontal slit-shaped insertion opening 17 is opened in the center of the front plate 34 to reach the back surface of the front plate 34. The lower surface of this insertion port 17 is set at the same height as the upper surface of the guide board 31, as shown in FIG.

At the rear of both side plates 32 and 33, a rear part of a flat guide lid 37 is pivotally supported by a bottle 38 so as to be able to swing in the vertical direction. Further, a locking plate 39 having a slightly trapezoidal shape is fixed horizontally to the upper part of the center of the back of the front Fi 34, and a locking hole 40 is vertically opened in the center of the locking plate 39. There is.

The center of the front short side of the guide lid 37 is cut into a trapezoidal shape, and has a cutout 41 shaped enough to pass through the locking plate 39. A slightly trapezoidal shaft support plate 42 is fixed on the upper surface of the guide lid 37 in the space above the cutout 41. A knob 43 is provided on the upper surface of this shaft support plate 42.

FIG. 8 shows the vicinity of the locking plate 39 and the shaft support plate 42 in detail.

The locking hole 40 has a vertical opening, and a pin groove 45 is formed in the vertical direction in the opposing inner cylinder of the locking hole 40, and two holes on the left and right of the circle are dug when viewed from above. It has a taken shape. A shaft hole 46 is opened vertically through the shaft support plate 42.
A shaft rod 44 is rotatably inserted therethrough. This shaft rod 44
A spring 47 is inserted through the shaft 44, and the knob 43 is fixed to the upper end of the shaft 44.

Incidentally, a fixing pin 48 protruding in the left-right direction is fixed to the lower end of the shaft rod 44.

In addition, on the left and right of the position close to the front plate 34 of the guide plate 31,
A rectangular roller hole 51 and a head hole 52 are opened at intervals, and the upper surface of the drive roller 53 is exposed in the roller hole 51. This drive roller 5
3 is connected via a belt 55 to a motor 54 fixed to the lower part of the guide board 31, and the drive roller 53 is freely rotated in both left and right directions by the motor 54. The upper portion of the magnetic head 56 is exposed in the head hole 52 . Further, a printer hole 57 is formed through the guide board 31 at a slightly central side thereof, and a thermal type printer head 58 is fixed in this printer hole 57 so that its upper part is exposed.

Next, approaching the cut portion 41 of the guide lid 37, roller holes 60.61 are opened on the left and right sides, and guide rollers 62.63 are rotatably supported in each roller hole 60.61. It is. The lower surface of the guide roller 62 is in contact with the upper surface of the drive roller 53, and the lower surface of the guide roller 63 is in contact with the upper surface of the magnetic head 56. Furthermore, a roller hole 64 is opened in the center of this guide 137 and a little closer to the side surface, and a guide roller 65 is rotatably supported in this roller hole 64 as well. The lower surface of this guide roller 65 is in contact with the upper surface of the printer head 58. This state of contact is the seventh
As shown in the figure.

In addition, detection holes 75 are provided in the front and rear of the guide plate 31, respectively.
．． 76 are formed with vertically penetrating openings, and reflective photosensors 77, 78 for detecting the position of the prepaid card 4 by reflection of light are fixed in these detection holes 75, 76.

Next, FIG. 9 is a circuit diagram showing a control system in this magnetic card handling device 3.

This card reader 15 is provided with an arithmetic circuit 79 containing a CPU, ROMSRAM, etc.
9 is a control circuit 80 that controls the drive system of the card reader 15;
is connected to. The calculation circuit 79 is connected to charge information from the charge display meter 2. Further, the control circuit 8o is connected to a motor controller 81, a solenoid 71, a magnetic head 86, and a radar 5 to the printer, as well as the photosensors 77 and 78.
is also connected. In addition, the motor controller 81
The motor 54 is connected to.

Next, the operation of this embodiment will be explained.

In normal use, this magnetic card processing device 3 is
As shown in the figure, the drawer part 11 is housed in the outer box 10, and the front panel 12 is in close contact with the front opening end of the outer box 10.
This opening is closed. Therefore, inside the taxi, the front panel 12 is in the same positional relationship as the plane of the dashboard 1, and the magnetic card processing device 3 does not protrude into the space inside the taxi.

When paying the fare using the prepaid card 4, insert it into the insertion slot 17 of the magnetic card processing device 3 as described above, and read the balance information magnetically recorded on the prepaid card 4. The payment process can be performed by comparing the fare with the fare notified from the fare display meter 2.

At this time, insert or remove the prepaid card 4 from the insertion slot 17,
The magnetic information stored in the prepaid card 4 is read, but the magnetic information stored in the prepaid card 4 is read in the conveyance path of the card reader 15 (the vertical space formed by the upper surface of the guide board 31 and the lower surface of the guide lid 37 is a thin slit-shaped space). The prepaid card 4 may get jammed or caught. This is a phenomenon that occurs when the prepaid card 4 is deformed and gets caught in this narrow conveyance path, and when the drive roller 53 and the like slip.

If such a card jam phenomenon occurs, the prepaid card 4 will no longer reflect light from the photosensors 77 and 78 even while the motor 54 is operating. When the prepaid card 4 is jammed by the photosensors 77 and 78, the card reader 15 automatically detects the card jam and informs the control circuit 80 that the card is jammed. Then, the control circuit 80 applies a current to the solenoid 71 and pulls up the solenoid pin 72 to remove it from the engagement hole 74 and release the engagement.

As a result, the engagement between the outer box 10 and the drawer part 11 is released, so that the drawer part 11 can be pulled out from the outer box 10. First, after the control circuit 80 determines that a card jam has been self-detected and the lock is released, the front panel 12 is grasped by hand and the front panel 12 is pulled forward. Since rollers 20 and 21 are attached to each side, this roller 20
．． 21 rotates in the U-shaped inner space of the guide plates 18 and 19, and the side plates 13 and 14 are pulled out from the outer box 10. The state shown in FIG. 3 is that the front panel 12 is pulled out and the side plates 13, 14 are pulled out at the same time. In this way, the entire drawer section 11 is removed from the outer box 1.
As a result, the upper surface of the card reader 15 is exposed to the outside.

After that, turn the externally exposed knob 43 to align the bottle 4 and the pin grooves 45, and then pull up the knob 43 to disengage the bottle 4 and the engagement plate 39, and the guide lid 37 will rotate significantly upwards about the bottle 38. The state in which this guide lid 37 is rotated is the sixth position.
This is the state shown in the figure. In this way, by rotating the guide lid 37, the surface of the guide board 31 is exposed to the outside, so that it is possible to insert a hand into the inside of the card reader 15. The guide board 31 has a large opening due to the guide portion 31.
The prepaid card 4 stuck in the conveyance path can be removed from the upper surface using a finger or the like.

After performing this maintenance work, in order to perform payment operations using the prepaid card 4, the card reader 15 must be returned to an operational state.

In this case, first, hold the knob 43 from the state shown in FIG. 6, rotate the guide lid 37 downward about the bottle 37, and insert the shaft rod 44 into the engagement hole 40. At this time, the pin 48 and the pin groove 45 should be aligned in the same direction. After the pin 48 passes through the engagement hole 40, turn the knob 43 slightly 90" against the elastic force of the spring 47, and the pin 48 will be aligned in the same direction. 48 is brought into close contact with the lower surface of the plate 39, and the locking plate 42 is fixed in close contact with the engagement plate 39.The state in which the guide lid 37 is fixed by this operation is shown by solid lines in FIGS. 5 and 7. At this time, the guide roller 62 contacts the drive roller 53, and the guide roller 63 contacts the magnetic head 56.The guide roller 65 also contacts the printer head 5, and the next prepaid card 4 is transferred. Wait for the printing operation.After this, push the front panel 12 and push the drawer mechanism 11 toward the inside of the outer box 10.Then, the rollers 20 and 21 move against the guide plate 1.
8. Move while rotating inside the 19, side plate 13.14
are sequentially pushed into the outer box 10. Depending on this stored state, the magnetic card processing device 3 changes from the state shown in FIG. 3 to the state shown in FIG. 2.

This series of operations will be explained with reference to FIGS. 10 and 11.

When the fare is accumulated by the fare adjustment meter 2,
The fee information is transmitted to the magnetic card processing device 3 (step 101).

When the prepaid card 4 is inserted into the slot 17 for payment (step 102), the insertion of the prepaid card 4 is detected, and the prepaid card 4 is taken into the conveyance path by rotating the motor 54. The operation of reading the information recorded on the prepaid card 4 is started (step 103). Then, the magnetic head 56 reads the magnetic information recorded on the prepaid card 4 and transmits it to the control circuit 80, and transmits the information to the arithmetic circuit 79. These seven arithmetic circuits temporarily store the read information (step 104).At this time, the prepaid card 4 is being moved within the conveyance path, but if the card jams, the photo sensor 77. 78, the process moves to the maintenance flow (step 105), and once the information has been read (step 105).
Step 106), the operation of the motor 54 is stopped to wait for calculation processing (Step 107).

The arithmetic circuit 79 compares the balance information read from the prepaid card 4 with the amount of the fare indicated by the fare display meter 2 (step 108). Then, the two amounts are calculated and it is determined whether the balance of the prepaid card 4 is larger or smaller than the amount to be paid (step 10).
9) If there is a large balance on the card, the payment circuit 79 deducts the fare from the card balance (step 110); if the balance on the card is small, the difference is displayed on the display 16 and paid in cash. (Step 11
1).

In the arithmetic circuit 79, the remaining amount after deducting the ride fee from the card balance must be written into the prepaid card 4 again, so the motor 54 is rotated (step 112) and the prepaid card is moved within the conveyance path. The amount subtracted by the magnetic head 56 is stored in the prepaid card 4 (step 113). If a card jam occurs at this time as well, the process moves to the maintenance flow (step 114). Once this magnetic writing of the balance is completed (step 115), the balance is then printed on the front surface of the prepaid card 4. In this case, information corresponding to the balance is transmitted from the control circuit 80 to the thermal head 59, and the thermal head 57 prints the deducted balance amount on the surface of the prepaid card 4 using heat (step 116).

Next, it must be determined whether the information written by the magnetic head 56 is correct. Therefore, the prepaid card 4 is moved back and forth within the transport path, and the written information is read again by the magnetic head 56 (step 117).

If there is a card jam at this time as well, the process moves to the maintenance flow (step 118).

Then, when the read information is transmitted to the arithmetic circuit 79,
- Temporarily stops the operation of the motor 54 (step 11)
9) The arithmetic circuit 79 self-determines whether the written information and the read information match (step 120). In this case, if the balances do not match, the process moves to the above-mentioned writing operation again and the balance is If it is correct, the process moves to the next discharge operation (step 121).

If the balances match, the motor 54 is rotated (step 122) and the card is ejected (step 123). At this time as well, if the prepaid card 4 is jammed in the conveyance path, the card is jammed. When the prepaid card 4 is ejected from the insertion slot 17, the motor 54 is stopped and all operations are stopped (step 125).

If a card jam occurs in each of the above-mentioned operations, the flow shifts to the maintenance flow shown by A in FIG. 10.

First, when proceeding to the maintenance flow, the control circuit 80 applies current to the solenoid 71, and releases the solenoid pin 72 from the locking hole 74 (step 130).

Then, the drawer section 11 can be pulled out from the outer box 10 (step 131). Then, as described above, the guide cover 37 can be opened in the state where the card reader 15 is exposed from the outside as shown in FIGS. 5 and 6 (step 132). When the card is opened wide, the prepaid card 4 can be taken out by picking it up with a finger or the like (step 133).

Once you have finished removing this defective card, the guide section 3
1 (step 134), and, contrary to the above, close the drawer part 1 (step 134).
1 into the outer box 10 (step 135)
.

When this drawer part 11 is pushed into the outer box 10, the solenoid pin 72 engages with the engagement hole 74, and the drawer part 11 cannot be pulled out from the outer box 10 again (
Step 136).

In this state, the system waits for normal card payment. If the user wants to pay with the prepaid card 4 again, the flow of B in FIG. 10 is entered and the fee can be paid with the prepaid card 4 in the same manner as described above. Further, if the prepaid card 4 is not used for payment (step 137), the flow goes to C in FIG. 10, and the magnetic card processing device 3
The charge settlement operation ends.

Through this series of operations, the magnetic card stuck inside the card reader 15 can be removed and maintained.

〔effect〕

Since the present invention is configured as described above, it is possible to use a magnetic card to pay for a taxi fare, and even if a malfunction occurs due to a jammed card, the jammed magnetic card can be easily removed. I can do it. In the case of a magnetic card processing device in a narrow taxi interior, even if the device is small and complicated, the card reader can be easily exposed to the outside for maintenance.

Moreover, unless the card reader self-detects that the magnetic card is jammed inside, the drawer section cannot be pulled out from the outer box, thereby preventing counterfeiting of the magnetic card due to unauthorized operation.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a state in which a magnetic card processing device is attached to a dash board inside a taxi, Fig. 2 is a perspective view showing the external appearance of a magnetic card processing device which is an embodiment of the present invention, and Fig. 3 4 is a sectional view of the central part of the same as above, FIG. 5 is a perspective view of the entire card reader, and FIG. 6 is a state with the guide lid lifted. Perspective view of card reader, seventh
The figure is a sectional view of the card reader, Figure 8 is a partially enlarged view showing the fixing mechanism of the guide lid, Figure 9 is a circuit diagram showing the control system in this embodiment, and Figures 10 and 11 are in this embodiment. It is a flowchart showing the operation of each part. 3... Magnetic card processing device, 4... Magnetic card, 1
0...Outer box, 11...Drawer mechanism, 12...Front panel, 13.14...Side plate, 15...Card reader, 1st, 19...Guide plate, 20, 21. ··roller

Claims (1)

[Claims] A box body attached to a vehicle dashboard, a drawer mechanism combined at the front of this box body so that it can be taken in and out, and a card reader fixed inside this drawer mechanism and capable of reading information on a magnetic card. What is claimed is: 1. A magnetic card processing device for paying taxi fares, characterized in that the withdrawal mechanism can be pulled out from the box only when it is detected that the magnetic card is jammed inside the card reader.