JP3506343B2 - Paper ejection device - 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 discharge device for discharging long paper such as receipts and tickets using roll paper.

[0002]

2. Description of the Related Art Conventionally, a small printer has been used as an issuing device for issuing receipts, tickets and the like. In such a printer, the paper is discharged in association with the printing operation, and the paper forming the receipt or the ticket is cut into a predetermined length by the auto cutter at the end of printing.

FIG. 10A shows the appearance of a printer used as this type of issuing device. The front panel 104 of the outer case 102 is provided with a sheet ejection port 106 for ejecting a sheet of paper that forms a ticket or a receipt. The long sheet 108 is discharged from the sheet discharge port 106 according to the printing operation, and the recipient can receive the sheet 108 as a receipt or a ticket.

In the internal structure of this printer, as shown in FIG. 10B, a paper discharge path 110 is provided from the inside of the outer case 102 toward the paper discharge port 106, and this paper discharge path 110 is provided. Along the paper transport mechanism 11
2. A printing mechanism 114 and a cutter mechanism 116 are arranged. The sheet 108 is sandwiched between the transport rollers 118 and 120, and is transported in cooperation with the printing operation of the printing mechanism 114. In the print mechanism 114, a print head 122 and a platen 124 are arranged with the paper 108 of the paper discharge path 110 interposed therebetween. At the time of printing, the print head 122 is driven to print on the paper 108 on the platen 124. The form of printing depends on the type of paper 108,
An ink ribbon is not required when pressure-sensitive paper is used, and a coloring medium such as an ink ribbon is required when plain paper is used.

Further, the cutter mechanism 116 constitutes an independent unit and has a built-in cutter blade 126 which slides in the direction orthogonal to the conveying direction of the paper 108 inside. The cutter blade 126 is driven by a slide drive mechanism (not shown). In such a cutter mechanism 116, the paper 108 is cut when the cutter blade 126 slides downward in the drawing.

A front panel section 104 is provided on the sheet ejection side of the cutter mechanism 116, and a sheet ejection port 106 is formed. The printed paper 108 is cut into a predetermined length by the cutter mechanism 116, and then discharged as a ticket or receipt from the paper discharge port 106.

By the way, in such a printer, as shown in FIG.
Is used. The roll paper 128 is formed by winding a long paper 108 around a core 130 by applying tension, and as a result, the paper 108 has a curl. Since such a curl cannot be completely corrected by pressurization such as printing, the paper 108 discharged from the paper ejection port 106 after cutting is curved due to the curl, and the front panel unit It is closely attached so as to be wrapped around 104. Therefore, the issued receipt or ticket is difficult to grasp, and the recipient may fail to receive it. In particular, the roll paper 128 may have a more prominent curvature as it gets closer to the core 130, and the ejected paper 108 may have a cylindrical shape that cannot be gripped.

Therefore, as shown in FIG. 12, the inventor of the present invention installs a roller 132 for forcing curl in the sheet discharge path 131, and applies the roller surface of the roller 132 to the back side of the discharged sheet 108. Accordingly, a paper discharge device 140 that corrects the curl and discharges the paper is proposed. According to such a paper discharge device 140, as shown in FIG.
The roller 1 is attached to the paper 108 discharged from the paper discharge port 106.
A groove 134 is formed by 32 toward the ejection direction, and as a result, the sheet 108 can be ejected in a flattened state.

[0009]

However, even if such curl correction means is provided, the paper 108 to be ejected is discharged.
Is weak, and the length of the discharged paper 108 differs depending on the receipt to be issued. When the discharge length is long, the correction effect is weakened, and as shown in FIG.
The discharged paper 108 hangs down due to its own weight, and the curl is restored, and the issued receipt is still difficult for the recipient to grasp and difficult to receive.

When such a sheet discharging device is installed, the recipient of the receipt or the like, as shown in FIG.
The paper discharge port 106 for discharging the discharged paper 108
Place your finger near and wait. Therefore, even if the paper 108 has a correction effect, as shown in FIG. 16, if the discharge length of the paper 108 differs depending on the type of receipt or ticket, the paper 108 is still difficult to grip. was there.

Therefore, according to the present invention, when such a roll paper or the like is used as the paper, the curl of the paper is corrected and the discharge length is made constant so that the recipient can easily grasp the paper and easily receive the paper. It is an object of the present invention to provide a paper discharge device that realizes the realization.

[0012]

In the paper discharge device of the present invention, as shown in FIG. 1, a paper discharge device for discharging a paper (2) having a curl, which should be discharged. Conveying means for conveying in the direction (paper conveying mechanism 8)
And a discharge path (paper discharge path 24) for discharging the paper conveyed by the conveying means to the outside, and a recess (87) installed in the discharge path and curved in the width direction of the paper.
The curl correction means (curl correction mechanism 28) that corrects the curl by forming the paper, the paper storage unit (66) that loops the paper into a standby state, and grips the paper to be discharged to the discharge path. Discharge rollers (70, 72) for sending out
Drive means for rotating the discharge roller and paper discharge control means for controlling the drive of the drive means to control the discharge length of the paper looped in the paper storage part to a constant amount regardless of the length of the paper. (Paper discharge control unit 9).

Further, in the paper discharge device of the present invention, when the rotational force from the drive means is transmitted to the drive shaft between the drive means and the drive shaft of the discharge roller, and the paper discharged by a certain amount is pulled out, It is characterized in that a discharge buffering means (torque limiter 81) for idling under the load to release the mechanical coupling between the drive means and the drive shaft is installed.

Further, in the paper ejection device of the present invention, the ejection buffering means is composed of a torque limiter (81). Further, the paper discharge device of the present invention is
A paper ejection device for ejecting curled paper,
Conveying means for conveying paper in the direction in which it should be ejected (paper conveyance
Mechanism 8) and the paper sheet conveyed by this conveying means
The discharge path (paper discharge path 24) for discharging the
A curl modifier installed at the exit to correct the curl of the paper.
Installed in the discharge path and the correct means (rolling habit correction mechanism 28).
And sheet detection means for detecting the leading edge of the conveyed sheet
(Paper sensor 78) and a paper sensor provided upstream of the paper detecting means.
Placed on the sheet, and the sheet is routed according to the signal from the sheet detecting means.
The paper storage part (66) that puts it in the standby position and the discharge path
A discharge roller (7 that grips and sends out the sheet to be discharged
0, 72) and drive means for rotating this discharge roller
And controlling the drive of this drive means to control the
Transporting a fixed amount of the leading edge of the paper
The discharge length is fixed regardless of the length of the printed paper.
Equipped with a paper ejection control unit (paper ejection control unit 9) for controlling
It may have a different configuration.

[0015]

The sheet is discharged to the outside from the discharge path by the conveying means. When a sheet having a curl, such as roll paper, is used, the sheet discharged through the discharge path is curled due to the curl. Therefore, in the present invention, curl correction means is installed in the discharge path to correct the curl and flatten it. Sheets issued as tickets or receipts can be straightened by the curl correction means, flattened, and taken out.

The discharge length of the paper discharged by the curl correction means is controlled by the paper discharge control means, and even when the length of the receipt or ticket issued is different, the paper is looped and initially discharged. The discharge length of is a constant amount. As a result, the recipient can receive the paper by easily grasping and pulling out the leading end of the paper discharged by a certain amount. For this reason, the reception does not fail.

Further, when the paper is ejected by a certain amount in this way, the load acts on the ejection roller side when the recipient grips and pulls out the paper. Ejection buffering means is installed between the ejection roller and the driving means. When a load in that case is applied to the ejection buffering means, the mechanical coupling between the ejection roller and the driving means is released. As a result, the discharge roller is in the idling state. Therefore, the recipient can easily receive the sheet by grasping the edge of the sheet and pulling it out. In addition, during normal operation, the rotational force from the drive means is transmitted to the drive shaft between the drive means and the drive shaft of the discharge roller, and when the sheet discharge is hindered, the rotational force of the drive means is rotated by idling. I am trying not to communicate to. Then, when the obstruction of the paper discharge is released, a fixed amount of paper is promptly discharged.

Further, in the paper discharge device of the present invention, the discharge buffering means is constituted by the torque limiter, and has a simple structure and is provided between the drive shaft of the discharge roller and the driving means without any special control. The mechanical coupling of can be released. Moreover, even when the discharge is obstructed, it is possible to quickly shift to the discharge state when the load is released without requiring special control.

[0019]

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIGS. 1 to 7 show an embodiment of the sheet discharging device of the present invention. The sheet discharging device of this embodiment is integrally formed with the printer, and is configured to perform the printing operation of the printer on the sheet 2 and the sheet conveying and cooperative operation.

In the paper ejection device of this embodiment, the paper ejection unit 4 is attached to the printer mechanism 3. The printer mechanism 3 is provided with a printer control unit 6 as a control unit for controlling operations such as printing, paper conveyance, and paper ejection, and a paper conveyance mechanism 8, a printing mechanism 10, and a paper control mechanism 10 controlled by the printer control unit 6. The cutter mechanism 12 is installed along the paper transport path 14. Also,
The printer control unit 6 is composed of, for example, a microcomputer, and includes therein a central processing unit, a ROM and a RAM as storage devices, an input / output device, and the like, and a paper conveyance control unit 602, a print control unit 604, and the like. The cutter control unit 606 is configured. The paper transport control unit 602 controls the drive of the paper transport mechanism 8, the print control unit 604 controls the print mechanism 10, the cutter control unit 606 controls the motor 7, and as a result, the cutter mechanism 12 drives. To be done. A host computer is connected to the printer control section 6 as an external control means, and print data or the like is given from the host computer. These configurations are similar to those of a normal printer.

Further, the paper discharge unit 4 is provided with a paper discharge path 24 for discharging the paper 2. As a matter of course, in order to discharge the conveyed sheet 2, the sheet conveying path 14 and the sheet discharging path 24 are continuously arranged and formed. In the paper discharge path 24, a paper discharge mechanism 26 is installed as a means for forcibly discharging the paper 2, and a curl correction mechanism 28 is installed as a means for correcting the curl of the paper 2. There is. Paper ejection mechanism 26
Is controlled by a paper discharge control unit 9 as a paper discharge control unit, and performs a paper discharge operation corresponding to the paper transport mechanism 8.

The paper transport mechanism 8 includes a pair of transport rollers 3.
A motor (not shown) is connected to one of the transport rollers 32 as a driving unit to apply a rotational force. The paper 2 sandwiched between the transport rollers 32 and 34 is
It is guided to the printing mechanism 10 via the paper transport path 14. The print mechanism 10 includes a print head 36, a platen 38, and the like. The print head 36 prints on the paper 2 on the platen 38.

A cutter mechanism 12 is provided on the terminal end side of the printer mechanism 3, and the cutter mechanism 12 is provided with paper guides 40 and 42 for receiving the paper 2 from the paper transport path 14 on the platen 38. There is. Paper guide 4
0 and 42 are made of a flexible synthetic resin plate or a metal plate, and are opened at a certain angle on the printing mechanism 10 side in order to easily receive the paper 2. Cutter mechanism 12
A cutter blade 44 that slides in the direction orthogonal to the transport direction of the sheet 2 to cut the sheet 2 is provided in the. When the cutter blade 44 is retracted (in the case of FIG. 1),
The cutter mechanism 12 has a passage 4 which is connected to the paper conveyance passage 14.
6 is provided, and the paper 2 is conveyed to the paper discharge unit 4 side through the passage 46.

In the paper discharge unit 4, a paper discharge path 24 continuous to the paper transport path 14 is provided in a vertical frame 48.
The first discharge guide plate 50 constituting the
The discharge guide plate 50 has a horizontal portion 52 at the center,
The inclined portions 54 and 56 are formed in front of and behind that. The inclined portion 54 projects toward the cutter mechanism 12 side, and facilitates taking in from the paper transport path 14 side to the paper discharge path 24 side. A guide plate 58 is provided on the upper side of the inclined portion 54 to prevent the paper 2 from jumping up and to correct the curl.

A second discharge guide plate 60 is installed on the side of the inclined portion 56 of the first discharge guide plate 50, and this discharge guide plate 60 has two inclined portions 62 and 64 and has a cross section L.
The sheet storage section 66 is formed in a letter shape and includes the inclined section 62 and the horizontal section 52 of the discharge guide plate 50. The paper storage portion 66 forms a space portion in which the discharged paper 2 is looped to stand by after printing is completed. Further, the inclined portions 56 and 64 of the discharge guide plates 50 and 60 form a rectangular parallelepiped passage which is parallel and closed, and the end portion thereof forms the paper discharge port 68.

The paper discharge mechanism 26 includes a discharge guide plate 50,
The discharge guide plates 50 and 60 are provided with a pair of discharge rollers 70 and 72. The discharge roller 70 is a drive shaft 74, and the discharge roller 72 is a support shaft 7.
It is supported by 6, and its roller surface slightly protrudes from the wall surfaces of the discharge guide plates 50 and 60 to facilitate the sandwiching of the conveyed paper 2.

Then, a rotational force is applied to the drive shaft 74 of the discharge roller 70 from a motor 83 which is a drive means via a torque limiter 81 which is a discharge buffer means. The motor 83 is driven by a driver 85, and the driver 85 is provided with a control output of a fixed amount discharge processing unit 900 as a control output of the paper discharge processing unit 9.

A paper sensor 78 for detecting the arrival of the paper 2 is provided on the discharge side of the discharge rollers 70, 72, and the detection output of the paper sensor 78 is added to the paper discharge controller 9. Based on the detection output, the discharge roller 7
The drive of 0 is controlled.

Since the roll paper 20 is used as the paper 2, the curl correction mechanism 28 is a means for correcting the curl. The roll paper 20 is wound around a winding core 22 to have a long shape. Although the paper discharge device of this embodiment uses the roll paper 20 as the paper 2 having the curl, it is also effective when the paper 2 having other curl is used.

A straightening roller 80 is installed as a curl correction mechanism 28 on the trailing end side of the paper discharge path 24. The straightening roller 80 has the same form as the discharge roller 70 and is composed of a rubber roller or the like having appropriate elasticity.

As shown in FIG. 2, the straightening roller 80 has a window 82 formed on the discharge guide plate 60 side.
A bearing 84 formed adjacent to 2 is rotatably supported. In this embodiment, the straightening roller 80 has a groove 86 formed in the center of its roller surface, and since this roller surface is pressed against the paper 2 passing through the paper discharge path 24, the discharge guide forming the paper discharge path 24 is formed. It projects from the window 88 formed on the side of the inclined portion 56 of the plate 50 into the paper discharge path 24.

The drive shaft 74 of the discharge roller 70 is rotatably supported by the frame 48, which is a support member, and a torque limiter 81 is installed at one end of the drive shaft 74. A rotational force is applied from a motor 83 which is a driving means.

Next, FIG. 3 shows a concrete configuration example of the torque limiter 81. Drive shaft 74 of discharge roller 70
Is supported by the frame 48 via bearings 802,
It projects outside the frame 48. A clutch portion 804 is fixed to the drive shaft 74. The clutch portion 804 includes a small diameter portion 806 and a flange portion 808,
A gear 810 is rotatably provided on the small diameter portion 806. A recess 812 is formed in the gear 810 in the axial direction, and the recess 812 and the clutch unit 804 are formed.
Disk-shaped spring receiver 8 fixed to the small diameter portion 806 of
A coil spring 816 for pressing the gear 810 against the wall surface of the flange 808 is inserted between the coil spring 816 and the gear 14. Then, the flange portion 808 of the clutch portion 804
A slip member 818 is mounted on the slip member 818, and the slip member 818 has a ring-shaped contact portion 820 formed on the gear 810 by the pressure of the coil spring 816.
Is pressed.

In such a torque limiter 81, the rotational force of the motor 83 is transmitted from the worm gear to the gear 810. Normally, the gear 810 and the clutch portion 804 are frictionally engaged by the pressure of the coil spring 816, and as a result, the rotation of the worm gear is transmitted to the drive shaft 74.

However, when the motor 83 is stopped and a load acts on the drive shaft 74 via the discharge rollers 70 and 72, if the load is greater than the coupling force of the coil spring 816, the drive shaft 74 and the motor The mechanical connection with 83 is immediately released by the torque limiter 81. As a result, the paper 2 can be pulled out.

Then, the drive shaft 7 is passed through the discharge roller 70.
4, a force that prevents rotation acts on the clutch 4 and the clutch portion 804 and the gear 81.
When the frictional force with the abutting portion 820 of 0 is exceeded, the gear 810 becomes idle and the transmission of the rotational force to the drive shaft 74 is blocked. As a result, the paper 2 formed by the discharge rollers 70 and 72
Will be stopped. That is, when the ejection of the sheet 2 is obstructed, the stress is applied to the drive shaft 74 through the sheet 2 and the gear 810 is caused to idle. Further, when the blocking force is released, the pressure of the coil spring 816 quickly returns from the idling state to the normal rotation, and the sheet can be discharged.

The operation of this paper ejection device will be described. 4, 5 and 6 are flow charts showing the operation of this paper discharge device, and a and b show connectors of each flow chart.

When the print data is sent after the power switch is turned on and the initial setting is completed, the process proceeds to step S1 to print one line on the paper 2. After the printing of one line, the process proceeds to step S2 to feed the paper. This paper feed is a feed amount for one line corresponding to one line printing, and is performed on the paper transport mechanism 8 side. And step S
At 3, the motor 83 is rotated to convey the paper 2. As a result, in step S4, the leading edge side of the sheet 2 conveyed by the sheet sensor 78 is detected. If the sheet 2 is not detected, the process returns to step S1 and the step S is performed again.
The processes of 1 to S4 are repeated.

When the paper is detected in step S4, the motor 83 is stopped. At this time, the sheet 2 is prevented from moving at its leading end while being held by the discharge rollers 70 and 72. Then, the process proceeds to step S6 (FIG. 5), and it is determined whether or not n lines have been printed. If n lines have not been printed, the process proceeds to step S7,
After printing one line, the process proceeds to step S8 to feed the paper for one line, and then proceeds to step S6 to print n lines. That is, as a result of the n-line printing conveyance, the conveyed sheet 2 curls so as to swell upward through the sheet accumulating portion 66, and the state shown in FIG. 7 is obtained.

When the printing of n lines is completed, that is, the printing required for the receipt or ticket is completed, step S
9, the sheet is fed by m rows by the transport rollers 32 and 34. After that, the process proceeds to step S10, the cutter mechanism 12 is driven, and the paper 2 is cut by lowering the cutter blade 44.

Then, after the sheet 2 is cut, the process proceeds to step S11, while rotating the motor 83, the process proceeds to step S12, and the time during the rotation is measured. After a certain time has passed, the process proceeds to step S13, and the motor 83 is stopped. At the same time, the discharge roller 72 is driven,
As a result, the sheet 2 is discharged as a receipt or a ticket from the sheet discharge path 24 to the sheet discharge port 68, and the step S1 is performed.
Go to 4. In step S14, as shown in FIG. 8, the sheet 2 is ejected from the sheet ejection port 68 through the sheet ejection port 68 and is held at its leading end.

At this time, the process proceeds to step S15, and the recipient can pick the leading edge of the sheet 2. Step S1
As shown in FIG. 6, when the recipient picks up and pulls the paper 2, that is, the receipt, the process proceeds to step S17, the torque limiter 81 starts operating, and the idling state occurs. Step S
The sheet 2 cut at 18 can be pulled out by the recipient.

If the discharge of the sheet 2 is blocked during the sheet discharge, the torque limiter 81 also idles to buffer the sheet discharge in this case, and the sheet discharge is promptly discharged when the obstruction of the sheet discharge is released. It can be performed. FIG. 9 shows a form of the sheet 2 to be discharged as a receipt or a ticket. The n-th row shows printing and the m-th row shows a blank portion for discharging.

By the way, when the sheet is discharged, the sheet 2 comes into contact with the straightening roller 80, and the straightening roller 80 is placed on the curved back side.
Is hit. In this case, the straightening roller 80 generates friction with the conveyed sheet 2 and passively rotates by receiving the conveying force.
For this reason, as shown in FIG. 8, the soft paper 2 is straightened by the pressure contact of the straightening roller 80, and receives the forming force in the direction opposite to the curl. As a result, the sheet 2 discharged from the sheet discharge port 68 is flattened and discharged by forming the depression 87 by the correction roller 80 in the discharge direction as shown in FIG. Easily grasps the sheet 2 and never fails to receive it.

[0046]

As described above, according to the present invention,
The following effects can be obtained. a. It is possible to perform the discharge of the paper flattened without habit winding to correct the paper with a curl, at the initial discharge, the paper to be issued as a receipt or tickets that
Since a loop is formed in the middle of the discharge path and only a certain amount of the tip is discharged, the recipient can easily grab it, and the reception will not fail. b. As a result of the curl of the paper being corrected and the paper being ejected, the recipient can easily confirm the printed contents. c. A fixed amount of paper can be easily received by the recipient by grasping the tip of the paper and pulling it out, and even if the paper discharge is obstructed, the paper discharge is promptly stopped, and When the obstruction is released, the paper can be reliably discharged. d. The discharge buffering unit can be configured by a torque limiter, and with a simple structure, it can cope with the buffering operation and the discharge obstruction at the time of discharging the paper, and can stably discharge the paper without causing a jam.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a paper ejection device of the present invention.

FIG. 2 is a vertical cross-sectional view showing a configuration on a paper discharge path side.

FIG. 3 is a cross-sectional view showing a configuration of a torque limiter.

FIG. 4 is a flowchart showing an operation when a sheet is discharged.

FIG. 5 is a flowchart showing an operation when a sheet is discharged.

FIG. 6 is a flowchart showing an operation when a sheet is discharged.

FIG. 7 is a cross-sectional view showing a discharge standby state at the time of discharging a sheet.

FIG. 8 is a perspective view showing a certain amount of sheet discharge from a sheet discharge port.

FIG. 9 is a plan view showing a form of a sheet.

10A and 10B show a conventional printer, FIG. 10A is a perspective view showing its appearance, and FIG. 10B is a sectional view showing its internal structure.

FIG. 11 is a cross-sectional view showing a print output using roll paper having a curl in the printer.

FIG. 12 is a cross-sectional view showing a sheet ejection device including a sheet straightening unit.

FIG. 13 is a perspective view showing discharge of a sheet corrected by a sheet correcting unit.

FIG. 14 is a perspective view showing the hanging of the paper when the discharge length is long.

FIG. 15 is a perspective view showing a standby state for sheet ejection.

16A and 16B are perspective views showing a standby state and a grasping state when ejecting a sheet having a different ejection length.

[Explanation of symbols]

2 sheets 8 Paper transport mechanism (transport means) 9 Paper ejection control unit (paper ejection control means) 24 Paper discharge path 28 Curl correction mechanism (curl correction means) 70, 72 Discharge roller 80 Straightening roller (curl correction means) 81 Torque limiter (discharging buffer means)

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65H 23/34 B41J 15/04 B65H 29/20 B65H 29/70

Claims (4)

(57) [Claims] 1. A sheet discharging device for discharging a sheet having a curl, wherein the sheet is conveyed in a direction in which the sheet should be discharged, and a discharge path for discharging the sheet conveyed by the conveying means to the outside. And a recess that is installed in this discharge path and that curves in the width direction of the paper.
Curl correction means that corrects the curl by forming only a loop, a paper storage section that loops the paper into a standby state, and a discharge roller that grips and sends out the paper to be discharged to the discharge path, Drive means for rotating the discharge roller; and paper discharge control means for controlling the drive of this drive means to control the discharge length of the paper looped in the paper storage section to a constant amount regardless of the length of the paper. A paper ejecting device comprising: 2. When the rotational force from the drive means is transmitted to the drive shaft between the drive means and the drive shaft of the discharge roller, and when a certain amount of the discharged paper is pulled out, the idling occurs due to the load. 2. The sheet ejecting apparatus according to claim 1, further comprising an ejection buffering unit for releasing mechanical connection between the driving unit and the drive shaft. 3. The paper ejection device according to claim 2, wherein the ejection buffering means is composed of a torque limiter. 4. A paper discharge device for discharging a paper having a curl.
And a conveying means for conveying the paper in a direction in which the paper should be discharged, and discharging the paper conveyed by the conveying means to the outside.
And a winding path that is installed in the discharging path and corrects the curl of the paper.
The habit correction means and the leading edge of the sheet that is installed and conveyed in the discharge path are inspected.
The sheet detecting means to be output and the sheet detecting means installed on the upstream side of the sheet detecting means.
Paper that loops the above-mentioned paper according to the signal of the stage and stands by
A discharge part that holds and feeds the paper that should be discharged to the accumulation part and the discharge path.
An exit roller, drive means for rotating this discharge roller, and drive of this drive means are controlled to form a loop in the paper storage section.
By conveying a fixed amount of the leading edge of the paper,
Controls the discharge length to a fixed amount regardless of the length of the printed paper
And a sheet ejection control means for controlling the sheet ejection apparatus.