JP3311856B2 - Paper processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper processing apparatus suitable for use in vending machines for various commodities, automatic payment machines installed in financial institutions, and the like. The present invention relates to an improvement in a sheet processing apparatus for sending sheets such as banknotes to a return port.

[0002]

2. Description of the Related Art Most of recent vending machines and the like are capable of handling bills. In a vending machine capable of handling bills, when a bill is inserted into a bill insertion slot by a customer, the bill is conveyed to a determination position in the device, and first, the denomination and authenticity of the bill are determined. And "true"
When it is determined that the banknote is determined, the banknote at the determination position is further retained in a primary retaining unit provided in the apparatus, and the process proceeds to a series of subsequent transaction processes. On the other hand, when the authenticity is determined to be "false", the banknote determined to be "false" is returned to the return port, and the transaction processing is terminated. In the authenticity judgment, "true"
Also, when the banknote inserted by the customer is retained in the primary retaining unit in the device and the process proceeds to a series of subsequent transaction processing,
When the customer specifies the cancellation of the transaction, the banknote that has been held is returned to the return port. Also, some vending machines are configured to return a change bill to the same return port as described above after completing a transaction requested by the customer.

[0003] By the way, some customers sometimes forget to pick up the bills returned to the return slot and leave them.
In particular, this is often the case when returning change or the like. Therefore, if the banknotes are returned to the return port and the transaction processing is terminated at the return stage, the banknotes that the customer has forgotten to take will be left in the return port, which may lead to an accident such as theft. there were.

Therefore, in order to prevent such an accident from occurring, conventionally, a return port transport function for transporting bills from a predetermined position in the apparatus to a return port, and the bills transported to the return port are again returned to the apparatus. A transport unit having a reject transport function of taking in the inside and transporting it to a predetermined reject storage, a return paper sheet detection sensor for detecting the presence or absence of a bill at the return port, and an apparatus including the return paper sheet detection sensor A control unit that has a function of monitoring detection signals of various sensors and controls the operation of the transport unit in accordance with the transaction situation, and the control unit is configured to return banknotes by the return port transport function. When the bill is conveyed to the return port, the feeding by the return port transport function is temporarily stopped with the leading end of the bill protruding from the return port by a predetermined amount, and the bill is returned from the return paper sheet detection sensor in that state. Is monitored to determine whether or not the bill sent to the return slot has been taken out.If the bill has been taken out within a certain period of time, a series of transaction processing ends at that time, and within a certain period of time, If the removal of the banknote has not been executed, it is considered that the customer has forgotten the removal operation, and the banknote in the return port is taken into the apparatus by the reject transport function and stored in the reject box, and a series of transaction processing is performed. A banknote handling device configured to end the process has been developed.

[0005]

As described above, if the bill in the return port is not taken out after a certain period of time, if the bill sent to the return port is taken into the reject box, the customer can take out the bill. Even if it is forgotten and left, it was possible to prevent the occurrence of an accident such as theft due to abandoned bills.

However, most of the returned paper sheet detection sensors are configured to non-contactly detect a bill located at a return port using a light receiving / emitting element such as a so-called photo sensor. That is, when the bill is conveyed to the return port, the feed by the return port transport function is temporarily stopped in a state where the tip of the bill projects a predetermined amount from the return port,
When waiting for the customer to take out the banknote in that state, a part of the banknote with the tip protruding from the return port is used as the return paper sheet detection sensor, for example, the light passed between the light receiving and emitting elements used as the sensor. By blocking, the presence of the bill was detected, and the returned paper sheet detection sensor considered that the bill was not taken out.

By the way, it has been found that there is a problem in determining whether or not the customer has taken out the sheet only by the output of the returned sheet detecting sensor using the light emitting / receiving element or the like. That is, when a plurality of bills are returned to the return port, generally, the bills are sent out to the return port together with each other in a state of being overlapped with each other. If only the middle banknote is pulled out while the upper and lower banknotes of the overlapping banknotes are left as they are, the returned paper sheet detection sensor using the light emitting / receiving element can detect that a part of the banknote has been removed. If a certain period of time elapses, the banknotes will be mistakenly regarded as having not been taken out within a certain period of time due to the banknotes remaining in the return slot, and will be stored in the reject storage. Problems arise.

Although the above description has been made with reference to the case of a banknote processing apparatus for returning banknotes, the same problem arises when returning banknotes as change in an automatic ticket vending machine or the like for selling train tickets, This is considered to be the case even when a plurality of paper sheets such as are paid out to the return port in a lump, and is a problem common to all vending machines that discharge paper sheets to the return port.

Therefore, an object of the present invention is to solve the above-mentioned problems, and it is possible to reliably detect the presence or absence of a customer's take-out operation of a sheet sent to a return port by a dedicated sensor. It is possible to properly process the sheet so that the customer does not remove the middle sheet while leaving the upper and lower sheets of the overlapping sheets as they are, or intentionally. A paper processing apparatus is provided.

[0010]

A sheet processing apparatus according to the present invention for achieving the above object has a return port transport function for transporting sheets from a predetermined location in the apparatus to a return port, and the return port. A transport unit having a reject transport function of re-introducing the paper transported to the mouth into the apparatus and transporting the transported paper to a predetermined reject storage; and a return paper-detection sensor for detecting the presence or absence of the paper at the return opening And a control unit that has a function of monitoring detection signals of various sensors in the apparatus including the returned paper sheet detection sensor and controls the operation of the transport unit according to the transaction status. Paper sheets sent from a predetermined location in the apparatus to the return port, and if the paper sheets sent to the return port are not taken out of the return port within a certain period of time, they are left in the return port. Paper sheets into the device A sheet processing apparatus to be accommodated in a reject storage, wherein a return port cover is provided at the return port so as to be openable and closable and covers the sheets sent to the return port so as to be able to be taken out. An opening / closing detection sensor for detecting, and the control unit, when transporting the paper sheet to the return port by the return port transport function, the tip of the paper sheet protruded from the return port by a predetermined amount. In this state, the feeding by the return port transport function is temporarily stopped, and the output of the open / close detection sensor is monitored in that state.If the return port cover is opened within a certain period of time, the removal operation by the customer is When it is determined that the process has been started, the return port transport function further sends out the paper sheets of the return port, thereby facilitating the removal of the customer.On the other hand, when the return port cover is not opened within a predetermined time, It is assumed that the customer has forgotten the eject operation, and is characterized in that accommodated in the reject box incorporated into the apparatus to a sheet of return slot by the reject transporting function.

Further, in the paper sheet processing apparatus according to the present invention, the return port cover may be configured such that at least a tip portion for covering the paper sheets sent to the return port is covered by the return port cover. Is formed of a transparent or translucent material that allows the presence of the return port cover to be visible from the outside of the return port cover, and the opening / closing detection sensor includes a light receiving / emitting element and a light shielding material that blocks light beams passed between the light receiving / emitting elements. And a light-shielding plate that is formed and attached to one end of the return port cover and that changes the output of the light emitting and receiving element by rotation of the return port cover.

Further, in the paper sheet processing apparatus according to the present invention, the return port cover may be configured such that at least a tip portion for covering the paper sheets sent to the return port is covered by the return port cover. Is formed of a transparent or translucent material that allows the presence of
As the opening / closing detection sensor, a sensor using a microswitch that operates according to the rotation of the return port cover may be used.

[0013]

The paper sheets sent to the return port are initially covered by a return port cover that is openably and closably provided at the return port. The return door cover must be opened. The opening / closing of the return opening cover is configured to be detected by an opening / closing detection sensor. Therefore, the presence or absence of the customer's take-out operation for the paper sheets sent to the return slot can be reliably detected by the dedicated open / close detection sensor.
For example, if the customer passes, or intentionally, leaves the upper and lower paper sheets of the overlapping paper sheets as they are and pulls out only the middle paper sheets, and some of the paper sheets are fixed. Even if it is left in the return slot until the time elapses, it can be properly processed without erroneous recognition that there has been no removal operation by the customer.

[0014]

1 to 6 show a sheet processing apparatus 1 according to the present invention.
FIG. 1 is an enlarged sectional view of a main part of a paper sheet processing apparatus, FIG. 2 is a longitudinal sectional view showing an entire configuration, FIG. 3 is a perspective view of a main part of the paper sheet processing apparatus, and FIG. FIG. 5 is an external perspective view of the sheet processing apparatus, FIG. 5 is a flowchart showing the overall processing flow, and FIG. 6 is a flowchart showing the return processing flow.

The paper sheet processing apparatus 1 is used as an automatic ticket vending machine for selling tickets such as trains and trains. As shown in FIG. 4, the front side of the apparatus is an operation panel unit 2, The operation panel section 2 is provided with a card insertion slot 3 such as a prepaid card and a bill insertion slot 4 as a portion where a customer deposits money. A display unit 5 for displaying a deposit amount or the like is provided, and further, operation buttons 6 for designating a drop-off station and the like are arranged thereon. The card insertion slot 3
A take-out port 7 for a ticket is arranged below the vehicle, and a return port 8 is provided on the right side of the take-out port 7.
This return slot 8 is used to return banknotes to be changed, or
It is used to return a deposited bill when a transaction is canceled, and detects the presence or absence of a bill sent to the return port 8 by a bill transport unit 20 (see FIGS. 1 and 2) described later. A return sheet sensor is provided. This return paper sheet detection sensor is a known sensor, and for example, a sensor using a light receiving / emitting element can be used.

As shown in FIG. 2, inside the sheet processing apparatus 1, the bill validator 12, the bill transporter 20, the banknote safes 30, 40, 50, and the banknote depositor 60, the reject box 70, , A control unit (not shown) and the like are provided.

The bill discriminating section 12 performs denomination judgment and authenticity judgment of a bill inserted from the bill insertion slot 4, and a bill judged as a "true" note by a predetermined discriminating process. Sent to the bill transporting section 20,
The banknote determined to be a “fake” ticket can be returned to the banknote insertion slot 4.

The bill transporting section 20 includes a plurality of transporting belts which are stretched over a plurality of rollers, and variously arranges the transporting belts. The return port 8 and the primary holding sections 210, 220, and 2 corresponding to denominations.
A banknote transport path for interconnecting the banknote safe 30, the banknote safes 30, 40, 50, the withdrawal stacking section 60, the reject box 70, etc. is constructed. Primary storage units 210, 220, 23
0, and the primary storage units 210, 220, and 2
Banknote storage safe 3 corresponding to the banknotes held in 30
A return port transport function for transporting banknotes from each of the primary holding units 210, 220, 230 or the banknote safes 30, 40, 50 to the return port 8; It has a reject transfer function for taking in the bills conveyed to the mouth 8 again into the apparatus and conveying them to the reject box 70.

Each of the primary holding units 210, 220, 230
Is a section for temporarily storing banknotes determined as "true" tickets by the banknote discriminating section 12 for each denomination, and the uppermost primary storing section 210 is for a 5,000-yen ticket, and is an intermediate primary storing section. Part 2
Reference numeral 20 is for a 1,000-yen ticket, and the lowermost primary holding unit 230 is for a 10,000-yen ticket.

The banknote storage safes 30, 40, and 50 store the vouchers held in the primary holding units 210, 220, and 230 for each denomination. Is for 5,000 yen voucher, middle banknote safe 4
0 is for a 1,000 yen note, and the bottom banknote storage safe 50 is for a 10,000 yen note. Note that the banknote storage safes 30, 40
Is also configured so that change bills can be carried out.

As shown in FIGS. 1 and 2, the return port 8 is provided with a bill 81 conveyed by the bill conveyer 20.
Is opened in the casing of the operation panel unit 2 so that the paper can be inserted. At a position slightly lower than the return port 8, a tip is extended from the return port 8 along a bill 81 projecting a predetermined length. At the position slightly higher than the return opening 8, the receiving portion 83 is fixed so as to protrude from the return opening 8, and the peripheral edge of the receiving portion 83 is covered with the bill 81. A return port cover 84 that contacts the periphery is provided. The return port cover 84 has a hinge fitting 85 at the base end side and a pivot pin 86 that is a pivot of the hinge fitting 85.
Is rotatably connected to the housing portion of the operation panel section 2 so as to be openable and closable with respect to the return port 8, and the banknote 81 sent to the return port 8 can be rotated without the rotation. It is covered so that it cannot be taken out. The hinge fitting 85 is fixed to the base end of the return opening cover 84, and forms a pair with a hinge fitting 87 fixed to a housing portion of the operation panel unit 2. 85 and a hinge fitting 87 are rotatably connected by the rotation pin 86.

The return port cover 84 is made of a transparent or translucent material (for example, an acrylic plate or a paper board) that allows the presence of the bill 81 covered by the return port cover 84 to be visible from the outside of the return port cover 84. Carbonate plate). As shown in FIG. 3, a recess 88 is formed at the tip of the return opening cover 84 for a finger to be put on when the return opening cover 84 is opened and closed.

An opening / closing detection sensor 90 for detecting the opening / closing of the return port cover 84 is provided at the base end side of the return port cover 84. This open / close detection sensor 90 is
As shown in FIGS. 3 and 1, a sensor main body 93 in which an arm 91 having a light emitting (light emitting) element built in on the distal end side and an arm 92 having a light receiving element built in the distal end side is integrally formed; It is configured to include the hinge fitting 85 and a light-shielding plate 95 formed integrally with a light-shielding material that blocks light beams transferred between the elements. The light shielding plate 95 is provided with the hinge fitting 8.
5 is attached to the base end side of the return port cover 84, and the output of the light emitting / receiving element is changed by the rotation of the return port cover 85.

A control unit (not shown) for controlling the operation of the bill transport unit 20 includes a return sheet sensor (not shown) provided near the return port 8 and the open / close detection sensor 90.
It has a function of monitoring the detection signals of various sensors in the device including, and controls the operation of the banknote transport unit 20 and other driving units according to the transaction status (monitoring result) to sell a ticket. Implement a series of necessary processes.

FIG. 5 shows a flow of a series of processes for receiving money of the paper sheet processing apparatus 1 under the control of the control unit. That is, in the paper sheet processing apparatus 1, when a bill is inserted into the bill insertion slot 4 (step 110), first, the discrimination process by the bill discriminating unit 12 is performed on the inserted bill (step 120). In the case of a "true" ticket, the banknote is conveyed to the primary holding units 210, 220, and 230 according to the denomination via the appropriate conveyance path of the banknote conveying unit 20, and it is determined whether the transaction is established or not established. Are temporarily reserved (step 130). If it is determined in step 120 that the bill is a “fake” ticket, the inserted bill is immediately transferred to the bill insertion slot 4 by the transport function of the bill validator 12.
Is returned to. Primary storage unit 2 in step 130
When the transfer to 10, 220, and 230 is completed, it is determined whether or not there is a deposit in the bill insertion slot 4, and if there is a deposit, the process returns to step 110 (step 135). That is, in step 135, the above-described steps 110, 120, and 13 are performed for each of the deposited bills.
0,135 will be repeated.

If it is determined in step 135 that there is no subsequent payment, that is, it is determined that the payment has been completed, the process shifts to the next step 140, and the primary holding units 210 and 2 have been processed by then.
The handling of the deposited banknotes temporarily held at 20, 230 is determined. In this step 140, it is determined whether the transaction has been completed or not, based on whether or not the customer has pressed the cancel button after the payment is completed. If the transaction is not completed, the process proceeds from step 140 to step 180. Then, a return process is performed in which the deposited banknotes held in the primary holding units 210, 220, and 230 are returned to the return port 8 as they are.

If it is determined in step 140 that the transaction has been completed, the process proceeds to the next step 150, in which the amount of the ticket to the designated getting-off station is compared with the amount of money deposited, and It is determined whether or not return is necessary. If change is required, a return process is performed to convey the change amount of the bill to the return port 8 (step 160).
The banknotes held in the primary holding units 210, 220, 230 are stored in the banknote safes 30, 40, 50 (step 170). If it is determined in step 150 that the change is unnecessary, the process immediately proceeds to step 170, and the bills held in the primary holding units 210, 220, and 230 are stored in the banknote safes 30, 40, and 50. . In the case where the processing in the case where the transaction is established is executed, although not shown, issuance processing of the designated ticket is executed in parallel.

Then, it is determined whether or not the banknote returned to the return port 8 has been forgotten (step 190). If the banknote has been forgotten, the banknote sent to the return port 8 is again returned to the apparatus. Then, a collection process is performed to store the data in the reject storage 70 (step 200). In the return processing of step 160 or step 180 described above,
A predetermined banknote is transported to the return port 8 by the return port transport function of the banknote transport unit 20. In this case, the returned banknotes are once collected in the dispensing and collecting unit 60, and then collectively collected. To the return port 8.

The feature of the present invention resides in that a contrivance is made in the transport operation by the return port transport function when the banknotes are sent from the dispensing / stacking unit 60 to the return port 8 or in the process of judging whether or not the banknote is forgotten. is there. The processing will be described in detail with reference to FIG. That is, the control unit of the paper sheet processing apparatus 1 uses the return port transport function to transfer the bills to the depositing and accumulating unit 60.
Before the paper is conveyed to the return port 8, the return sheet detecting sensor provided in the return port 8 first determines whether or not any banknotes remain in the return port 8 (step 3).
10) If the banknote remains, it is determined that the customer did not pull out the banknote from the return port 8 while opening the return port cover 84 and indicating the intention to take out the banknote, and issued an alarm or other notification means (step 370). The process ends without being executed. On the other hand, when it is confirmed that there are no banknotes remaining in the return slot 8, the control unit starts a series of return processing, conveys the banknotes from the dispensing accumulation unit 60 to the return slot 8, and returns the front end of the banknote. In a state in which it is projected from the mouth by a predetermined amount, the feeding by the return port transport function is temporarily stopped (step 320, step 330), and the output of the open / close detection sensor 90 is monitored in that state, and within a certain time. It is determined whether the return opening cover 84 has been opened (step 340).

Then, the return port cover 8 is set within a predetermined time.
When 4 is opened, the control unit determines that the bill removal operation has been performed under the clear intention of the customer,
The banknotes in the return port 8 are further sent out by the return port transport function, facilitating the customer's banknote removal operation (step 350), and a series of return processing is completed.

On the other hand, if the return port cover 84 is not opened within a predetermined time in the step 340, it is regarded that the customer has forgotten the take-out operation, and the process immediately proceeds to the step 360. The banknote in the return port 8 is taken into the apparatus by the reject transport function, collected in the reject box 70, and the processing is terminated. In step 330, the position at which the sending of the bills is stopped is the bill 81.
Is located at a position where the tip of the projection protrudes from the return opening 8 by about 70 mm. This dimension secures a sufficient length for the customer to take out the bill, and the trailing end of the sent bill 81 can be gripped by the bill transport unit 20.
Can be captured quickly.

The paper sheet processing apparatus 1 that performs a series of return processing as described above is configured such that the bill 81 sent to the return port 8
The return opening 8 is covered with a return opening cover 84 that is freely openable and closable in the return opening 8, and the customer must open the return opening cover 84 in order to take out the banknote 81 in the return opening 8. The opening and closing of the return opening cover 84
It is configured to be detected by the open / close detection sensor 90.

For this reason, the customer's intention to take out the bills sent to the return port 8 is clearly confirmed by opening and closing the return port cover 84, so that the customer opens the return port cover 84, Never forget, even if such a situation should occur, a warning is issued after a lapse of a predetermined time, and the process of returning to the next customer is not performed, so that trouble can be avoided. Also, when the customer intentionally pulls out only the middle banknote while leaving the upper and lower banknotes of the overlapping banknotes as they are, and leaves some banknotes in the return slot 8 until a certain time elapses. Also, return port cover 8
The intention of taking out the bill can be confirmed from the output of the opening / closing detection sensor 90 linked to No. 4, and therefore, it is possible to properly process the bill without erroneously recognizing that the customer has not taken out the bill.

[0034] In this way, by performing appropriate processing in this way, when a customer requests for return of a banknote that has been forgotten later, it can be easily dealt with and troublesome trouble can be prevented. be able to. In the above embodiment, the open / close detection sensor 90 uses a light emitting / receiving element. However, as the open / close detection sensor 90, various known techniques can be applied. It is also conceivable to employ a configuration using a microswitch that operates according to the rotation of 84.

In the above embodiment, the return port cover 84
Was formed entirely of a transparent or translucent material, but at least the bills 8 delivered to the return slot 8
The base end side may be formed of an opaque material as long as the distal end portion that affects the visual recognition of 1 is formed transparent or translucent.

Further, in the above embodiment, the case where the present invention is applied to an automatic ticket vending machine for selling tickets such as trains has been described. The present invention is not limited to this, and includes, for example, tickets such as entrance tickets for movies and tickets. Therefore, the paper sheet processing apparatus according to the present invention is not limited to the above-described automatic ticket vending machine, but also includes an automatic vending machine and other banknote processing machines installed in financial institutions, or a ticket vending machine that sells entrance tickets for movies, It can be widely used for any vending machine that can handle banknotes.

[0037]

According to the paper sheet processing apparatus of the present invention, the paper sheets sent to the return port are initially covered by the return port cover that is openably and closably provided at the return port, and the customer is In order to remove the paper sheets from the return opening, the return opening cover must be opened. The opening / closing of the return opening cover is configured to be detected by an opening / closing detection sensor. Therefore, the customer's intention to take out the paper sheets sent to the return opening is recognized by the opening / closing operation of the return opening cover, and the removing operation can be reliably detected by the dedicated open / close detection sensor. So, for example,
If the customer passes or intentionally leaves the upper and lower paper sheets of the overlapping paper sheets as they are and pulls out only the middle paper sheets, some of the paper sheets are removed for a certain period of time. Even if it is left in the return slot until the passage of time, it is not mistaken that the customer has not taken out the operation, and if the customer later requests the return of the forgotten bill, the situation can be easily confirmed. It is possible to prevent troublesome troubles from occurring.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a main part of a paper sheet processing apparatus according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the entire configuration of the paper sheet processing apparatus of the present invention.

FIG. 3 is a perspective view of a main part of the paper sheet processing apparatus of the present invention.

FIG. 4 is an external perspective view of the paper sheet processing apparatus of the present invention.

FIG. 5 is a flowchart illustrating an overall processing flow of the sheet processing apparatus of FIG. 4;

FIG. 6 is a flowchart showing a flow of a return process of the sheet processing apparatus of FIG. 4;

[Explanation of symbols]

 2 operation panel section 4 bill insertion slot 8 return slot 20 bill transport section 30, 40, 50 bill storage safe 60 payout accumulation section 70 reject storage 210, 220, 230 primary storage section 83 receiving section 84 return port cover 85, 87 hinge Hardware 86 Rotating pin 88 Recess 90 Open / close detection sensor 91, 92 Arm 93 Sensor main body 95 Light shielding plate

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-170887 (JP, A) JP-A-58-214986 (JP, A) JP-A-59-197963 (JP, A) JP-A-54-1979 48599 (JP, A) JP-A-57-199067 (JP, A) JP-A-59-216291 (JP, A) Japanese Utility Model Laid-Open No. 5-52977 (JP, U) (58) Fields investigated (Int. ⁷ , DB name) G07D 9/00 B65H 29/00

Claims (3)

(57) [Claims] 1. A return port transport function for transporting paper sheets from a predetermined location in the apparatus to a return port, and a reject for transporting the paper sheets transported to the return port into the apparatus again and transporting the paper sheets to a predetermined reject box. A transport unit having a transport function, a return sheet detection sensor for detecting the presence or absence of sheets at the return port, and a function of monitoring detection signals of various sensors in the apparatus including the return sheet sensor. A control unit that controls the operation of the transport unit according to the transaction status, and sends out the paper sheets according to the transaction status from a predetermined location in the apparatus to the return port, and sends the paper sheets to the return port. A sheet processing device that, when the sent sheets are not taken out of the return port within a predetermined time, takes the sheets remaining in the return port into the apparatus and stores the sheets in the reject storage; , Equipped to open and close the return opening A return port cover for removably covering the paper sheets sent to the return port, and an open / close detection sensor for detecting the open / close state of the return port cover. When the paper sheet is conveyed to the return port, the feeding by the return port conveyance function is temporarily stopped with the leading end of the paper sheet protruding from the return port by a predetermined amount, and the opening and closing of the sheet is continued in that state. The output of the detection sensor is monitored, and if the return opening cover is opened within a certain period of time, it is determined that the take-out operation by the customer has been started, and the return opening transport function further sends the return opening paper sheets. This makes it easy to take out the customer.On the other hand, if the return opening cover is not opened within a certain period of time, it is considered that the customer has forgotten the taking out operation, and the reject transport function is used. Paper processing apparatus, characterized in that accommodated in the reject box incorporating a sheet of return slot in the device. 2. The return port cover, wherein at least a leading end portion covering the paper sheet sent to the return port is configured to detect the presence of the paper sheet covered by the return port cover from outside the return port cover. The open / close detection sensor is formed of a transparent or translucent material that can be visually recognized, and the opening / closing detection sensor is formed of a light emitting / receiving element and a light shielding material that blocks light beams passed between the light emitting / receiving elements, and one end of the return port cover. 2. The sheet processing apparatus according to claim 1, further comprising: a light-shielding plate attached to the light-receiving device and configured to change an output of the light emitting and receiving element by rotating the return port cover. 3. The return port cover, wherein at least a leading end portion covering the paper sheet sent to the return port is configured to detect the presence of the paper sheet covered by the return port cover from the outside of the return port cover. 2. A micro switch which is formed of a transparent or translucent material which can be visually recognized, and which operates as the open / close detection sensor in accordance with the rotation of the return opening cover. Paper processing equipment.