JPH069131A - Paper transfer device - Google Patents

Abstract

PURPOSE:To transfer documents regardless of the number of documnts to be transferred at once. CONSTITUTION:A paper transfer device HB comprising a transfer unit HY and a press unit PY which are opposed to each other is located to the left of an intermediate tray T. The transfer unit HY and the press unit PY are driven upward and downward by an up- and downward drive device which is a unit-leaving andcontacting drive device to form a gap between the units. When a single piece of paper is transferred, the paper is loaded onto the transfer unit HY via the gap and gripped between the unit HY and the press unit PY. The paper is then transferred and discharged from a discharge port 7 with a door 107 open.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document conveying device,
In particular, it relates to a document carrier used for a certificate automatic issuing machine for issuing a resident's card or a seal stamp certificate.

[0002]

2. Description of the Related Art Conventionally, a copy sheet feeding mechanism of a copying machine generally has a pair of rubber rollers and a pinch roller arranged in a sheet feeding path at a pitch shorter than the length of the copy sheet.
When the paper is fed, the rubber roller is rotated while nipping the paper with a predetermined pressure by the both rollers to feed the paper. In this case, the rubber roller and the pinch roller are always in contact with each other.

On the other hand, in recent years, an automatic certificate issuing machine has appeared, which automatically issues a resident's card, a seal stamp certificate, and the like by the operation of a document applicant without bothering staff such as public offices.
In such an automatic certificate issuing machine, the number of documents applied by the document applicant is not constant, and if the number of documents is one, the number of documents is plural, the number of documents bound by a stapler is the above-mentioned stapler. There is a case where a plurality of sets bound by are combined, and the thickness of the document to be sent is different in each case.

Therefore, the automatic certificate issuing machine has to cope with any thickness. This is because, for example, when the certificate is a resident's card, the number is different depending on the applicant, as in the case of one individual, the entire family, and the case of multiple sets of resident's cards for the entire family.

[0005] Then, a plurality of documents for which issuance is requested,
When ejecting a plurality of sets of documents from the issuing port of the automatic issuing machine, it is necessary to simultaneously eject the documents for which issuance is requested from the issuing port. The reason is that it is necessary to discharge the discharged documents at once to the applicant so that they will not forget to take them out. This is for convenience when the documents discharged to the document issuing port are stored inside the device again. Such measures are taken to prevent misuse of important documents such as resident's card and seal certification.

[0006]

However, the mechanism in which the rubber roller and the pinch roller are always in contact with each other as in the case of the copying machine or the like can convey one sheet of paper (document). , A plurality of sheets (for example, 50
In the case of (sheets), a thick document cannot be inserted between the rubber roller and the pinch roller, and it is impossible to convey it.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sheet conveying device capable of surely conveying a document regardless of the number of documents conveyed at one time.

[0008]

In order to achieve this object, a document conveying apparatus according to the present invention comprises a sheet conveying unit for conveying a placed sheet, and a sheet placed on the sheet conveying unit. While holding the paper, a paper pressing unit, a unit separating / connecting drive device that separates the paper conveying unit and the paper pressing unit from each other, and between the paper conveying unit and the paper pressing unit when the paper arrives from the upstream side. And a control device that controls the sheet so that the sheet is placed on the sheet transport unit and the sheet placed on the sheet transport unit is transported while being held by the sheet holding unit.

Further, an opening portion for discharging the sheet to the outside is provided on the exit side of the sheet conveying unit and the sheet pressing unit, and a power transmission member for opening the opening portion by a drive source of the unit separation / contact drive device. Prepared and configured.

Further, the paper carrying unit is provided with a retrograde preventing member which comes into contact with an end portion of the paper to prevent the paper from going backward when the paper is carried toward the opening. When storing the paper inside the device,
After the reverse-travel prevention state of the reverse-travel prevention member is released, the controller is provided with a control unit for performing control so that the paper is fed back into the apparatus.

[0011]

When the paper is received from the upstream side, the control section drives the unit separation / contact drive device to form a gap between the document conveying unit and the document pressing unit, and places the paper on the document conveying unit. . After the sheet is placed, the unit separation / contact drive device is driven to hold the sheet by the document conveying unit and the document pressing unit and convey the sheet in the opening direction.

When the sheet is conveyed to the opening, the power of the power source for driving the unit separation / contact drive device is
The power transmission member transmits the power to the door forming the opening to open the door.

Further, the control section leaves the sheet once conveyed to the opening for a predetermined time, and after the lapse of the predetermined time, releases the backward movement preventing member so that the sheet can be moved back into the apparatus.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. First, a mechanical system of a certificate automatic issuing machine that embodies the document conveying device of the present invention will be described, and then a control system of the certificate automatic issuing machine will be described. [1] Mechanical System (1) External Configuration FIG. 9 shows an external view of the automatic certificate issuing machine 1, and FIG. 10 shows an ID card applied to the automatic certificate issuing machine 1.

First, the ID card 40 used in the certificate issuing machine 1 will be described with reference to FIG. As shown in FIG. 10, a magnetic tape 41, on which various pieces of information such as a user ID identification code including a personal identification number of each user are stored, is attached to the upper part of a business card-sized ID card 40.

As shown in FIG. 9, the front panel of the casing 1a of the automatic certificate issuing machine 1 is provided with a card insertion slot 2a for inserting the ID card 40, and inside the card insertion slot 2a. A well-known card reader 2 (see FIG. 7) is provided in the. Above the card insertion slot 2a, a CRT display device 3 for displaying operating methods and guidance is arranged, and the user can directly input desired information on the CRT display device 3. A possible well-known touch panel 4 is provided. A call button 22 is provided near the card insertion slot 2a for calling a person in charge at a public office in case of trouble, and below the button 22 is used by a wheelchair user when using the certificate issuing machine 1. An assist bar 42 is provided for easy operation.

Further, below the assist bar 42, in consideration of the convenience of the wheelchair user, a digging portion 43 having a size enough to fit under the wheelchair user's knee is formed. The inner surface of the dug 43 is a shock absorbing sheet 4 that absorbs a shock when a part of a wheelchair collides.
4 are provided. In addition, the height of the certificate automatic issuing machine 1 is set so that wheelchair users can easily use it.
It is configured to be about 0 cm.

On the right side of the touch panel 4, there are arranged a coin insertion slot 5a and a bill insertion slot 6a for paying a fee, which are a well-known coin mech (coin identification device) 5 and bilberry (banknote identification device), respectively. 6 (see FIG. 7). Below these coin insertion slot 5a and bill insertion slot 6a, a take-out port 8 for taking out change and receipts and a certificate for ejecting a certificate such as a resident card printed by a laser printer 11 (see FIG. 2) described later. A discharge port 7 is provided.

On the upper right of the touch panel 4,
An operation display device 10 for displaying whether or not the automatic certificate issuing machine 1 is in a usable state is provided (2) Internal mechanism Next, a document conveying mechanism of the automatic certificate issuing machine 1 will be described with reference to FIGS. Will be described with reference to. Schematic configuration of essential parts A schematic configuration of essential parts of the automatic certificate issuing machine 1 will be described with reference to FIG.

As shown in FIG. 2, a laser printer 11 is provided at the bottom of the casing 1a for printing predetermined matters on documents such as a resident's card.
The laser printer 11 is provided with a discharge port 11a for discharging printed documents. A transport path W ₁ for transporting documents upward is provided in the vicinity of the exit of the discharge port 11a, and the double-fed documents are separated by a separation chute B and dropped and stored in a storage section C at the lower right side. Documents that are not double-fed pass through the upper transport path W ₂ and are transported to the left and placed on the intermediate tray T. When the number of documents is plural, the documents sequentially printed by the laser printer 11 sequentially pass through the transport paths W ₁ and W _2, and are sequentially stacked and placed on the intermediate tray T.

On the left side of the intermediate tray T, there is arranged a sheet conveying device HB consisting of a conveying unit HY and a pressing unit PY which are arranged opposite to each other according to the gist of the present invention.
The transport unit HY and the pressing unit PY are vertically driven by a vertical drive device (not shown) which is a "unit separation / contact drive device" to form a "gap". If there is only one sheet, the transport unit H is fed through the gap.
The sheet is placed on Y, and one sheet of paper sandwiched between the pressing unit PY is conveyed, and is discharged to the outside from the discharge port 7 in which the door 107 is opened.

When there are a plurality of documents, the intermediate tray T is switched upward as shown by a dotted line, and the plurality of documents are bound on the intermediate tray T after being stapled by a stapler S which is a binding machine. The intermediate tray T is returned to the lower side again (shown by the solid line). Then, a gap is formed between the presser unit PY and the transport unit HY, and after the bound document is inserted into this gap, the presser unit PY is lowered downward to press the bound document downward. It is conveyed while being attached, and is discharged to the outside from the discharge port 7 in which the door 107 is opened. Detailed Configuration Next, the paper conveying device (mechanical system) H of the automatic certificate issuing machine 1
The detailed configuration and operation of B will be described.

FIG. 1 is a right side view showing a state in which the sheet conveying device HB is attached to the casing 1a of the automatic certificate issuing machine 1,
FIG. 3 shows a left side view of the sheet conveying device HB, FIG. 4 shows a main part of FIG. 1, and FIG. 5 shows a plan view of the sheet conveying device HB. 6A and 6B show the intermediate tray T.
When the documents on the sheet receiving tray 101, which is a sheet, are stored, the sheet receiving members 133a, 133 function as stoppers for the documents.
It is a front view and a side view for explaining a releasing method of 3b.

As shown in FIGS. 1 and 3 to 5, the right chassis 104 and the left chassis 105 are arranged to face each other. Two guide elongated holes 104a and 104b are formed on the left side of the right chassis 104, and two guide elongated holes 104c and 104d are formed on the right side of the right chassis 104, respectively. Sliders 126a and 126b projecting from the document conveying unit 102 are inserted into the elongated guide holes 104b and 104d, and sliders 127a projecting from the document holding unit 103 are inserted into the elongated guide holes 104a and 104c. , 127b are inserted. Similarly, on the left side of the left chassis 105, upper and lower two guide slots 105a and 105b are formed, and on the right side, two upper and lower guide slots 105c and 105b.
d is provided. The guide elongated holes 105b, 105
A slider (not shown) protruding from the document conveying unit 102 is inserted in d, and the guide elongated holes 105a, 105
A slider (not shown) protruding from the document pressing unit 103 is inserted in c.

The document conveying unit 102 has pull springs 131a and 131, one end of which is fixed to the right chassis 104.
Always pulled upward by b. Similarly, the document pressing unit 103 is always pulled downward by the pulling springs 132a and 132b.

A pulley 1 is provided above and below the left side of the right chassis 104.
15, 117, and a timing belt 111 is provided between the pulleys 115, 117 in the vertical direction. The timing belt 111 holds the document pressing unit 103 and the document conveying unit 102 when they are vertically driven. Upper and lower members 111a and 111b that engage with the members 102a and 102b (FIG. 5) are fixed. Similarly,
Pulleys 116 and 118 are provided above and below the right chassis 104 on the right side.
The timing belt 112 is vertically arranged between the pulleys 116 and 118, and the upper and lower members 112a and 112b are fixed to the timing belt 112.

Similarly, pulleys 120 and 122 are arranged above and below the left chassis 105.
A timing belt 114 is arranged vertically between the 122, and the timing belt 114 has upper and lower members 114a, 114a.
14b is fixed. Similarly, pulleys 119 and 121 are disposed on the upper right and lower sides of the left chassis 105, and the timing belt 1 is vertically arranged between the pulleys 119 and 121.
The upper and lower members 113a and 113b are fixed to the timing belt 113.

The timing belts 111 to 114 are
The motor 107, the motor gear 107a, and the idle gear pulley 1 attached to the left chassis 105 side (see FIG. 3)
08, the tension pulley 109 and the belt 110 are driven to drive them clockwise or counterclockwise.

The upper and lower members 111b, 112b, 113
b, 114b, the position of the document transport unit 102, the pressing portion 102a, 102b, 102c, 102d
Is provided (see FIGS. 3 and 5), and the upper and lower members 1 are similarly provided.
At the position of the document pressing unit 103 opposite to 11a, 112a, 113a, 114a, push-up portions 103a, 103
b, 103c, 103d are provided respectively. By driving the timing belts 111 to 114, the document conveying unit 102 and the document pressing unit 103 are vertically moved to form a gap, and conversely, the gap is closed. Operation of Mechanism System Next, an outline of operation of the mechanism system will be described.

The state shown in FIG. 1 is the timing belt 1.
The document conveying unit 102 is moved downward by 11 to 114.
The document pressing unit 103 is in a state of being positioned upward respectively, and at this time, the upper and lower members 111a actuate the microswitch 128 (FIG. 4B) and become the origin.
In this state, the certificate 96 passes through the chute 98 (right end in FIG. 1) arranged upstream of the sheet transporting device HB and the rubber roller 9
It is fed onto the paper receiving tray 101 by 9 and the pinch roller 100. The certificate 96 is sent onto the inclined paper receiving tray 101 and then slides down to the lower side, but the paper receiving members 133a and 133 are provided at the right end of the paper receiving tray 101.
Due to the presence of 3b (FIG. 1 right and FIG. 6), the lower end of the certificate 96 is positioned here to prevent it from falling.

Then, a predetermined number of sheets are fed to the paper receiving tray 10
When the feeding is completed, the motor 107 is rotated clockwise, and the upper and lower members 113a actuate the microswitch 129 (FIG. 4) to stop. As a result, the timing belts 111 to 114 are rotated and the upper and lower members 111b and 112b are rotated.
b, 113b, 114b upward, the upper and lower members 111a,
In order to move 112a, 113a, 114a downward, the document conveying unit 102 is pulled upward by the pulling spring 131, and the document pressing unit 103 is pulled by the pulling spring 132 with gravity and slides downward to slide the paper receiving tray 101. The above certificate 96 is sandwiched between the conveyance belt 139 (FIG. 4) provided in the document conveyance unit 102 and the pinch roller 140 provided in the document pressing unit 103. At this time, the micro switch 137 (right side of FIG. 5) is pressed to detect the presence or absence of the certificate 96. The reason why the document conveying unit 102 and the document pressing unit 103 are opened up and down as described above is that when a document is dropped on the document conveying unit 102 from the intermediate tray,
This is because the unit 102 can be smoothly placed on the unit 102.

Then, the motor 141 rotates counterclockwise to rotate the conveyor belt 139 (FIGS. 1 and 5), so that the certificate 96 is sent to the upper left. When the tip of the certificate 96 operates the micro switch 138 (FIG. 5) and the motor 141 is stopped, and the motor 107 is further rotated in the clockwise direction, the belt 125 (FIGS. 1 and 4).
The upper and lower members 125a attached to the upper part push up the diagonal flange portion 106a of the door 106 provided in the certificate discharge port 7 to rotate the door 106 by about 90 degrees to open it. Motor 1
41 is rotated counterclockwise again and the end of the certificate 96 is fed until it comes out of the certificate outlet 7.

When the user gently pulls out the certificate 96 and removes it from the certificate issuing machine 1, the micro switch 138 (FIG. 5) is turned off, and it is determined that the certificate 96 has been removed, and the motor 107 turns counterclockwise. Rotate to the upper and lower member 1
11a actuates microswitch 128 (FIG. 4) to shut it down. Thus, the door 106 is closed by a screw spring (not shown), and the document conveying unit 102 and the document pressing unit 103 are opened.

When a certain period of time elapses with the tip of the certificate 96 being output from the certificate outlet 7, the certificate issuing machine 1 takes out the certificate 96 from the voicing device 16 (FIG. 7). However, if the certificate 96 still cannot be extracted, it is determined that the user is not in the vicinity, and the certificate 96 is stored inside. To explain this method, the certificate 96 is conveyed by the clockwise rotation of the motor 141 while being sandwiched between the conveyor belt 139 and the pinch roller 140. The left end of the certificate 96 is the micro switch 13
The motor 141 is stopped by passing eight. By rotating the motor 107 counterclockwise, the belt 12
5, the upper and lower members 125a attached to the
6 is closed by a torsion spring (not shown). Then, when the upper and lower members 113a actuate the microswitch 129, the motor 107 stops. Further, as shown in FIG. 6 and FIG. 7, a voltage is applied to the solenoid 136 to attract the solenoid 136 to activate the lever 135 and the connecting rod 134, thereby rotating the sheet receiving member 133 to release it. Then, the motor 141 is rotated clockwise to send the certificate 96 onto the storage tray 145 (lower right of FIG. 1) to store the certificate 96. [2] Control System (1) Configuration Next, the configuration of the control system of the automatic certificate issuing machine 1 will be described with reference to FIG. 7.

As shown in FIG. 7, the automatic certificate issuing machine 1
Operates according to a command from the CPU 13 connected to the host computer 31. The CPU 13 includes the card reader 2, the CRT display device 3, and the touch panel 4.
The coin mech 5, the bill burr 6, the laser printer 11, and the call button 22 are connected, and the journal printer 12 for printing a receipt and the documents printed by the laser printer 11 are plural sheets. In some cases, a stapler 14 for binding the edges of those documents
And a tallying machine 15 for giving a tally mark (perforation mark) to those documents, a voicing device 16 for audibly explaining an operating method, an HDD 17 for storing an operation program for controlling the CPU 13, and the like. A remote operation panel 33 for notifying a person in charge of the operating status of the automatic certificate issuing machine 1 and the pressing of the call button 22 is connected. Further, the host computer 31 is connected to a database 32 in which data such as family register and address of each inhabitant is stored. (2) Operation Next, the operation of the automatic certificate issuing machine 1 will be described with reference to the flowchart shown in FIG.

In the automatic certificate issuing machine 1, the CPU 13 normally displays the "card insertion screen" on the CRT display device 3. The user inserts the ID card 40 into the card insertion slot 2a of the automatic certificate issuing machine 1 (step S1). CPU
13 constantly monitors whether or not the ID card 40 is inserted into the card reader 2, and when detecting the insertion of the ID card 40, the card reader 2 reads the data stored in the ID card 40, and the CPU 13 To send the data to. The CPU 13 confirms whether or not the inserted ID card 40 is a card for the automatic certificate issuing machine 1 (step S2).

If this card is not for the automatic certificate issuing machine 1 (step S2; NO), the card insertion slot 2
The ID card 40 is ejected from a (step S3), and the fact is displayed on the CRT display device 3 (step S3).
4). On the other hand, if the card is a card for the automatic certificate issuing machine 1 (step S2; YES), the CPU 13 displays a “personal identification number input screen” on the CRT display device 3. In addition, a signal is also sent to the voicing device 16 to utter "Please input your PIN" (step S5). The user touches the touch panel 4 and inputs the personal identification number (step S
6). Then, the CPU 13 transmits the user ID identification code of the user stored in the ID card 40 and the input personal identification number to the host computer 31. The host computer 31 has the user ID transmitted from the CPU 13.
The identification code is compared with the personal identification number (step S7), and if the personal identification number is not correct for the user ID card (step S8; NO), the fact is transmitted to the CPU 13, and the "personal identification number input screen" is displayed again on the CRT. It is displayed on the display device 3 (step S5), and the personal identification number is re-input (step S6). If the personal identification number is correct (step S8;
YES), and informs the CPU 13 to that effect.

Subsequently, the CPU 13 displays a "certificate selection screen".
Is displayed on the CRT display device 3. In addition, a signal is also sent to the voicing device 16 to utter "Please select the required certificate" (step S9). The user selects the required certificate by touching the touch panel 4 on the portion where the required certificate is displayed (step S10; YES).

Next, the CPU 13 displays a "copies selection screen" on the CRT display device 3. In addition, a signal is also sent to the voicing device 16 to utter "Please select the required number of copies" (step S11). The user touches the touch panel 4 to select the required number of copies (step S12;
Yes). Then, the CPU 13 calculates the fee of the certificate selected by the user and displays the "fee entry screen" on the CRT display device 3. In addition, a signal is also sent to the voicing device 16 to utter "Fee is XX yen. Please pay" (step S13). The user inputs a fee (step S
14; YES). If the price is coins, coin slot 5a
It is thrown in from and enters into coin mech 5. If it is a bill, it is inserted from the bill insertion slot 6a and enters the bill burr 6. At this time, if necessary, the change is paid out from the coin mech 5 and discharged from the outlet 8. The hanging bill is paid out from the bill burr 6 and discharged from the bill insertion slot 6a. Further, the receipt is printed by the journal printer 12 and ejected from the take-out port 8.

When the CPU 13 confirms that the charge has been collected, it displays the screen during creation on the CRT display device 3. In addition, a signal is also sent to the voicing device 16 to utter "I am currently preparing a certificate. Please wait for a while" (step S15). At the same time, the CPU 13 requests the host computer 31 for data necessary for issuing a certificate. The host computer 31 searches the database 32, extracts necessary information from the user ID identification code obtained from the ID card 40 and the data such as the selected document type, and the CPU 1 of the automatic certificate issuing machine 1
Send to 3. The CPU 13 sends the data transferred from the host computer 31 to the laser printer 11 for printing (step S16). At this time, the certificate printed by the laser printer 11 has its end bound by the stapler 14 and is provided with a tally mark (perforation mark) by the tally machine 15 and is ejected from the certificate ejection port 7 (step S17). .

Then, the CPU 13 displays the "end screen". In addition, a signal is also sent to the voicing device 16 to say "Certificate is complete. Please take care. Please be careful not to forget receipts and cards. Thank you." (Step S18). In addition, the CPU 13 transmits a command to the card reader 2, and the card insertion port 2a I
The D card 40 is ejected. Then, when it is detected that the ID card 40 is taken out, after a while, the same "card insertion screen" as described above is displayed on the CRT display device 3, and the above-described operation is repeated.

The remote operation panel 33 is provided at the hands of the person in charge of maintenance of the apparatus, and when the user presses the call button 2 or when the certificate issuing machine 1 runs out of printing paper, for example. Then inform them to the person in charge with a lamp or buzzer.

In the above embodiment, an example in which the present invention is embodied in the automatic certificate issuing machine 1 has been shown, but without being limited to this, for example, conveyance of other paper (including synthetic resin sheet), etc. Needless to say, the conveying belt 139 of the document conveying unit 102 may be a rubber roller.

[0044]

As is apparent from the above description,
Since the gap between the paper transport unit and the paper pressing unit can be opened and closed, even if there is only one paper, a plurality of papers (for example, 5
Even when the number of sheets is 0, it is possible to reliably convey the sheet.

[Brief description of drawings]

FIG. 1 is a right side view of a document conveying device according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a mechanical system of the embodiment.

FIG. 3 is a left side view of the document conveying device.

FIG. 4 is a diagram showing a main part of the document conveying device.

FIG. 5 is a plan view of the document conveying device.

FIG. 6 is an operation explanatory view of a sheet receiving member when the document conveying device is used.

FIG. 7 is a block diagram of a control system of the document conveying device.

FIG. 8 is an operation flowchart of the document conveying device.

FIG. 9 is an external view of the certificate automatic issuing machine according to the embodiment.

FIG. 10 is an external view of an ID card used in the embodiment.

[Explanation of symbols]

1 ... Certificate automatic issuing machine 7 ... Certificate discharge port 13 ... CPU (control device) 101 ... Paper receiving tray 102 ... Document conveying unit 103 ... Document pressing unit 106 ... Door 107 ... Motor (driving source) 111, 112, 113 , 114 ... Timing belts 111a, 112a, 113a, 114a ... Vertical members (unit separating / connecting drive device) 111b, 112b, 113b, 114b ... Vertical members (unit separating / connecting device) 139 ... Conveying belt 140 ... Pinch roller 141 ... Motor

Claims (3)

[Claims] 1. A paper transport unit for transporting a placed paper, a paper pressing unit for transporting a paper while pressing a paper placed on the paper transport unit, the paper transport unit and the paper press unit. And a unit for separating and contacting the sheet, and when the sheet arrives from the upstream side, the sheet conveying unit and the sheet pressing unit are separated from each other so that the sheet is placed on the sheet conveying unit. A sheet conveying device, comprising: a control device that controls so that the sheet placed on the sheet is conveyed while being held by the sheet holding unit. 2. A power transmission member that has an opening for discharging the paper to the outside at the exit side of the paper transport unit and the paper pressing unit, and a power transmission member for opening the opening by a drive source of the unit separation / contact drive device. The sheet conveying device according to claim 1, further comprising: 3. The paper carrying unit includes a retrograde preventing member that comes into contact with an end portion of the paper to prevent the paper from going backward when the paper is carried toward the opening, and after the paper is carried to the opening. When the paper is stored inside the apparatus, a control unit is provided for performing control to reversely feed the paper back inside the apparatus after canceling the backflow prevention state of the backflow prevention member. 1. The sheet conveying device according to 1.