JPH0752486A - Paper processing equipment - Google Patents

Abstract

PURPOSE:To obtain paper processing equipment dispensing with readjustment such as additional feeding of paper by an operator and to prevent the end of continuous paper from being caught. CONSTITUTION:Equipment wherein continuous paper 2 having a perforation at the end of a page is sent out from a paper feeding part 1 by a paper sending means 3, processed by a processing means 5 and folded at the perforation in a stacking part 7 and which is equipped with a first instruction means 12 for giving an instruction on the height of the stacking part 7 before auto-loading, a setting means 15 for setting the number of pages to be sent out in the auto- loading in accordance with the instruction height, a moving means 14 for moving the stacking part 7 at the highest position in a normal state to the instruction height and a second instruction means 13 for giving an instruction on execution of the auto-loading. The equipment is so constructed that the movement to the instruction height is executed after the set number of pages to be sent out is sent out by the paper sending means 3 according to the instruction of the second instruction means 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus such as a laser printer which uses continuous paper, and more particularly to a paper processing apparatus capable of changing the number of continuous papers automatically set according to the height of a stacker table. The present invention relates to a paper processing device in which a swing guide opens when the end of continuous paper passes.

With the recent development of office automation, electrophotographic printing apparatuses such as laser printers are widely used in output terminals of computers, facsimile machines, copying machines and the like.

In these apparatuses, continuous printing paper (hereinafter referred to as paper) having perforations at page breaks is sent out from a paper feeding unit prior to printing, and a gap between a photosensitive drum and a transfer device is guided to a stacker automatically. It is set (hereinafter referred to as autoload).

At the time of this automatic setting, a folding defect may occur at the perforations at the page edge depending on the type of paper (paper quality or perforations in the middle). There is a method to make the stacker height variable to prevent this,
Since the number of pages to be fed at the time of automatic loading, that is, the feeding length of the sheet is determined depending on the sheet size, excess or deficiency of the sheet occurs due to the height of the stacker, and it is necessary for the operator to re-add additional sheets.

Further, in an apparatus provided with a swing guide for guiding folding of perforations above the stacker, depending on the height of the stacker, the end of the paper may be caught by the swing guide and may not fall easily, making removal difficult.

Therefore, there is a demand for a method of automatically determining the sheet feed amount by determining the height of the stacker and a method of smoothly accumulating the sheet ends.

[0007]

2. Description of the Related Art FIG. 9 illustrates an internal side view of a laser printer to which the present invention is applied. In the figure, 1a is a paper feed unit for accommodating and accommodating sheets 2a folded at perforations, 3
Reference numerals a and 3b are tractors, 30 is an automatic load table, 4 is a transport path, 5a is a printer unit, 6 is a swing guide, and 7a is a stacker table.

The printer section 5a includes an optical unit 50, a photosensitive drum 51 which is an image forming body, a cleaner 52, a charger 53, and a developing device.
54, a transfer device 55, a static eliminator 56, and a fixing device 57. With such a configuration, first, when the power of the apparatus is turned on and the paper 2a is loaded in the paper feeding unit 1a, the size of the paper 2a is detected by the size sensor S and stored in the control unit (not shown). . The size sensor S is composed of a plurality of optical sensors shielded according to the paper size.

Next, as shown by the one-dot chain line, the perforation of the paper 2a is set to the designated position a on the auto load table 30, and the auto load button (not shown) is pressed to drive the drive mechanism (not shown). The autoload table 30 moves in the direction of the tractor 3a, the feed holes at both ends of the sheet engage with the sprockets 31 provided on the belt B of the tractor 3a, and the tractors 3a and 3b are driven to store in the direction of arrow A. Paper 2a of the specified number of pages is sent and paper 2a
A pair of oscillating plates 60a, 60b facing each other with an interval for passing
Are guided to pass through the swing guides 6 which are rotatably supported at their upper ends and swing in the same direction, and the leading ends of the sheets 2a arrive on the stacker table 7a such that they are folded at the perforations and accumulated. Stop, and the print standby state is set.

Then, the fixing section 57 is heated to a predetermined temperature and becomes ready for printing. The photosensitive drum 51 has already been neutralized by the static eliminator 56, the residual toner is cleaned by the cleaner 52, and is charged again by the charger 53.

When the print start button is pressed, the optical data emitted from the optical unit 50 including a laser light source scans the photosensitive drum 51, and the electrostatic image formed on the photosensitive drum 51 is a toner image by the developing device 54. Paper developed and transferred to
After transferring to 2a with transfer device 55, fix it with fixing device 57, and
Is a swing guide 6a (Japanese Patent Laid-Open Nos. 54-121828, 55-31704, and 61-
No. 282262) and the sheets are sequentially folded and stacked on the stacker table 7a.

In this case, since folding defects may occur at the perforations accumulated depending on the type of the paper 2a used (paper quality or paper with perforations in the middle), as a method of coping with this, the present application JP-A-56-
No. 75344, “Paper Folding Device” has been proposed, which is the optimum position of the stacker table 7a depending on the type of the paper 2a (folded paper on the stacker table 7a.
Since the upper surface of the sheet 2a is located), the folding of the sheet 2a can be improved by automatically changing the distance between the upper surface of the sheet 2a and the swing guide 6 or the ladder chain.

[0013]

According to the above-mentioned conventional method, as a method for preventing the folding failure at the perforations,
The height of the stacker table is changed depending on the type of paper, but in a device that has an autoload function for paper, the number of pages fed during autoloading, that is, the delivery length is determined by the paper size. When the height of the stacker table is lowered, there is a shortage of paper, and folding still fails.

Therefore, it is necessary for the operator to perform rework such as additional feeding of paper by pushing a paper feeding button (not shown), and conversely, even if control is performed to feed a large amount of paper, the leading edge processing of the paper does not go smoothly. , The operator needs to refold the paper.

Further, in the apparatus provided with the swing guide for guiding the folding of the perforations above the stacker, when the stacker table is at a high position and the distance from the swing guide is short, the end of the sheet passes through the swing guide. At times, it may be caught on the swing guide and may not fall easily, making removal difficult. There is a problem.

According to the present invention, since the automatically fed paper feed amount is set according to the height of the stacker table, excess or deficiency of paper does not occur on the stacker table.
It is an object of the present invention to provide a sheet processing apparatus that does not require rework such as additional feeding of sheets by an operator and that smoothly accumulates the ends of sheets.

[0017]

1 and 2 are principle diagrams of the present invention. FIG. 1 is a principle configuration diagram corresponding to claim 1, and FIG.
[Fig. 6] is a principle configuration diagram corresponding to claim 4.

1) Means corresponding to claim 1 In FIG. 1, 1 is a paper feed unit, 3 is a paper feed unit, 5 is a processing unit, 2 is continuous paper with perforations at page breaks, and 7 is a height. Variable stacking unit, 12 is a stacking unit 1 to a stacking unit 7
Before the continuous paper 2 is automatically set up to
The first instructing means 15 for instructing the height position of the stacking unit 7 from the sheet feeding unit 1 to the stacking unit 7 according to the height position of the stacking unit 7 based on the instruction of the height position by the first instructing unit 12. Setting means for setting the number of pages to be fed out of the continuous paper 2 over, 14 is a moving means for moving the stacking unit 7 which is normally at the highest position to the height position indicated by the first indicating means 12, and 13 is a paper feed. It is a second instruction means for instructing automatic setting of the continuous paper 2 from the section 1 to the stacking section 7.

Accordingly, the continuous sheet 2 is fed from the sheet feeding section 1 by the sheet feeding means 3, the continuous sheet 2 is subjected to a predetermined processing by the processing means 5, and the continuous sheet 2 is folded and stacked at the perforating section in the stacking section 7. After the number of pages to be sent out of the continuous paper 2 set by the setting means 15 based on the instruction of the height position by the first instruction means 12 is sent out by the paper feeding means 3 based on the instruction of the second instruction means 13. The stacking unit 7 is configured to be moved by the moving unit 14 to the height position designated by the first indicating unit 12.

2) Means corresponding to claim 4 In FIG. 2, 1 is a paper feed unit, 3 is a paper feed unit, 5 is a processing unit, 2 is continuous paper provided with perforations at page breaks, and 60 is a stacking unit. A pair of rocking plates which are provided at a predetermined position above 7, and which are rotatably supported at their upper ends and face each other at a predetermined length so as to pass the continuous paper 2 at intervals.
Reference numeral 16 is provided above the pair of swing plates 60, and is a detection means for detecting the end of the continuous paper 2. Reference numeral 19 is a pair of swing plates 60 that swing in the same direction around the upper end and pass through a gap. Paper 2
Is a drive control means for opening and stopping the pair of swing plates 60 downward when the end of the continuous paper 2 is detected by the detecting means 16 by guiding the sheet to the stacking section 7.

Therefore, the continuous paper 2 is fed from the paper feeding section 1 by the paper feeding means 3, the continuous paper 2 is subjected to a predetermined processing by the processing means 5, and the continuous paper 2 is folded and stacked at the perforating section in the stacking section 7. The drive control means 19 swings the pair of rocking plates 60 in the same direction to guide the continuous paper 2 passing through the space to fold and stack the continuous paper 2 in the stacking unit 7, and the end of the continuous paper 2 is detected by the detection means 16. When detected, the pair of rocking plates 60 is configured to open downward and stop.

[0022]

[Action]

1) Operation corresponding to claim 1 When the height position of the stacking unit 7 is selected and instructed by the first instructing means 12 before automatic setting, the height of the stacking unit 7 is increased based on the instruction of the first instructing unit 12. The setting means 15 sets the number of pages to be fed out of the continuous paper 2 from the paper feed unit 1 to the stacking unit 7 according to the size. Therefore, when the automatic setting is instructed by the second instructing means 13, after the number of pages to be sent out of the continuous paper 2 set by the setting means 15 is sent out by the paper feeding means 3, the stacking unit 7 which is normally at the highest position is placed.
Moves to the height position designated by the moving means 14.

Therefore, since the continuous paper 2 having the number of pages corresponding to the designated height of the stacking unit 7 can be sent out, excess or deficiency does not occur in the continuously set continuous paper 2, and the continuous paper in the stacking unit 7 is not generated. There is no need for the operator to perform troublesome rework work due to poor folding of the paper 2 or poor start end processing.

2) Operation corresponding to claim 4 In the normal state, the drive control means 19 normally swings the pair of swing plates 60 in the same direction to guide the continuous paper 2 passing through the space and fold it to the stacking unit 7. However, when the detecting means 16 detects the end of the continuous paper 2, the pair of rocking plates 60 is opened downward and stopped, so that the end of the continuous paper 2 is between the pair of rocking plates 60. Therefore, it is possible to prevent the continuous paper 2 from being difficult to take out without falling while the end of the continuous paper 2 is sandwiched between the swing plates 60.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to the paper feeding of the laser printer described in the conventional example will be described with reference to FIGS. 3 and 4 are configuration diagrams showing an embodiment of the present invention, and FIG.
6 and 7 are explanatory views of the embodiment, and FIGS. 7 and 8 are flowcharts of the embodiment. The same reference numerals denote the same objects throughout the drawings.

The paper 2a, the tractors 3a and 3b, the stacker table 7b, and the lifting mechanism 14a shown in FIG.
The sensor SA in FIG. 3 corresponds to the detecting means 16 in FIG. 2, and the height instruction button 12a and the autoload button 13a in FIG. 4 correspond to the sheet feeding means 3, the stacking section 7, and the moving means 14, respectively.
Corresponds to the first instructing means 12 and the second instructing means 13 in FIG. 1, respectively, and includes the control program 90, the autoload page number table 92, and the autoload page number file in FIG.
15a corresponds to the setting means 15 in FIG. 1, and the control program 90 and the drive circuit 19a in FIG. 4 correspond to the drive control means 19 in FIG.

As shown in the side view of the laser printer of FIG. 3, a stacker table 7b is supported by a lifting mechanism 14a so as to be lifted and lowered. In the lifting mechanism 14a, the stacker table 7b is slidably fitted to the guide shaft 140, and the stacker table 7b and the belt 142 on which the weight 141 is attached are connected to the guide shaft 140.
It is hooked on pulleys P1 and P2 provided at the upper and lower ends of 140. Then, the stacker table 7b moves up and down by driving the motor M2 connected to the pulley P1.

Although not shown in FIG. 3 (see FIG. 4),
Height sensors S1, S2, for detecting the uppermost position and designated position of the stacker table 7b, and a folding sensor for detecting improper folding of the sheets 2a stacked at the uppermost position and designated position.
Sa, Sb, -are provided.

Height sensors S1, S2, and folding sensor S
a, Sb, ─ are each composed of a light emitting element and a light receiving element, the height sensors S1, S2, ─ are arranged parallel to the surface of the stacker table 7b, and the folding sensors Sa, Sb, ─ are shown in FIG. ) as well as
As shown in (b), the light from the light emitting elements of the respective sensors is arranged above the stacker table 7b at a position where the light obliquely passes over the sheet 2a. In FIG. 5, only the folding sensors Sa and Sb are shown to simplify the drawing.

In addition, the paper is placed near the upper end of the swing guide 6a.
A sensor SA that detects the end of 2a (detects that the sheet 2a is no longer present) is provided. Swing guide 6a
As shown in FIG. 6 (a), the rocking plates 60a and 60b having slits whose upper ends are fixed to a pair of rotary shafts 61a and 61b facing each other with a space for the paper 2a passing, and rocking plates 60a and 60b. Each of the plates 60a and 60b is composed of a plurality of swing mechanisms 62a and 62b that individually swing to the left and right.

The swinging mechanisms 62a and 62b are cranks 63a and 63b for rotating the motors M3 and M4 at a reduced speed, and connecting rods 64a and 64b.
, And links 65a and 65b fixed to the rotary shafts 61a and 61b, and the swing plates 60a and 60b swing by the drive of the motors M3 and M4.

Therefore, normally, when the sheet 2a passes through the oscillating plates 60a and 60b, the oscillating plates 60a and 60b oscillate left and right in synchronization with each other in the same direction, and the sensor SA causes the end of the sheet 2a to move. When it detects, it stops at the position where it swings to the left or right to the maximum, and as shown by the chain double-dashed line in Fig. 6 (b), one of the swing plates 60a, 60b on the lower side at that time Swing to the other side,
The swing plate is opened downward and after a predetermined time (for example, 5 seconds)
It is controlled so that 60a and 60b return to a state where they face each other in parallel and stop.

In the paper feed control block diagram of FIG. 4, 8 is an MPU, 9 is a ROM, 10 is a RAM, 11 is an operation panel, 17, 18, 19a are drive circuits, and 20 and 21 are sensor amplifiers. The MPU 8 controls each unit according to the control program 90 of the ROM 9.

The ROM 9 sets the page length by detecting the paper size, transports the paper 2a during autoloading and printing, feeds the paper 2a and counts the pages to be fed, and heights of the stacker table 7b by inputting height designation. Setting, lifting mechanism
14a drive, swing guide 6a swing drive and paper
A control program 90 for controlling open drive / drive stop when the end of 2a is detected, a page length table 91 for each size, and an autoload page number table 92 are provided.

The size-dependent page length table 91 stores page lengths of all sizes of the paper 2a used by the apparatus. The auto load page number table 92 stores the number of auto load pages for each height of the stacker table 7b for each size of the paper 2a. This autoload page number is
Round up to the number of pages by adding the number of feed pages of auto load calculated according to the page length of paper 2a and the feed amount that is normally folded corresponding to the specified height of stacker table 7b. It has been set.

The RAM 10 includes a stacker table designated height file (hereinafter referred to as designated height file) 100, a page length file 101, an autoload page number file 15a, a feed amount counter 102, and a page number counter 103.

The designated height file 100 stores the designated height of the stacker table 7b designated by the height designation button 12a described later. The page length file 101 stores the page length of the paper 2a of the corresponding size read from the size-dependent page length table 91 by the detection by the size sensor S when the paper 2a is loaded in the paper feeding unit 1.

The autoload page number file 15a is the designated height and page length file 10 of the stacker table 7b.
The number of autoload pages read from the autoload page number table 92 is stored based on the page length by size stored in 1.

The feed amount counter 102 synchronizes with the perforations of the sheet 2a, for example, every 1/2 inch (the size of the sheet 2a is 1 /
The feed amount (when it is an integral multiple of 2 inches) is detected by a sensor (not shown) and counted. Therefore, if the number of perforations from the perforation corresponding to the size is counted, one page has been sent, and the page number counter 103
Signal to, clear the count and start counting again.

The page number counter 103 is a feed amount counter.
Count the signals sent from 102. Operation panel 11
Is a plurality of height designation buttons 12a for designating the height of the stacker table 7b, an auto load button 13a, a print start button 110,
The display unit 111 and operation buttons for inputting print conditions such as the number of prints and print density are provided. On the display unit 111, the printing conditions input by operation and the device status (printable, folding failure, etc.) are displayed.

Since it has such a structure and function, its operation will be described with reference to the flow charts of FIGS. 7 and 8. First, when the device power is turned on, the motor of the lifting mechanism 14a
M2 rotates, the stacker table 7b moves upward, and the height sensor S1 detects and stops at the uppermost position.

Then, when the paper 2a is loaded into the paper feeding unit 1a,
The size of the paper 2a is detected by the size sensor S, and the page length of the paper 2a of the corresponding size is read from the size-dependent page length table 92 of the ROM 9 by the detection signal.
Store in M10 page length file 101.

Next, the operator determines the height of the stacker table 7b by using the height designation button 12a of the operation panel 11 based on the type of the paper 2a. Then, the designated height is stored in the designated height file 100 of the RAM 10, and the number of pages corresponding to the designated height and the page length stored in the page length file 100 is read from the autoload page number table 92 of the ROM 9. hand,
It is stored in the autoload page number file 15a of the RAM 10.

When the operator sets the sheet 2a at the designated position a on the auto load table 30 and presses the auto load button 13a, the auto load table 30 is driven by a drive mechanism (not shown) as described in the conventional example. Moves toward the tractor 3a and is set on the tractor 3a, and the drive circuit 17 drives the tractors 3a and 3b by the rotation of the motor M1 to feed the paper 2a, and the feed amount counter 102 counts the length of one page. Each time it is performed, the page number counter 103 counts and the number of pages stored in the autoload page number file 15a is sent out.

At this time, the motors M3 and M4 rotate in the forward and reverse directions at a predetermined number of rotations to swing the swing guide 6a, and the leading edge of the sheet 2a passing through the swing guide 6a is at the uppermost stacker table 7a. It reaches the top while being folded at the perforation and stops feeding.

Then, the motor M2 is driven and the stacker table 7a descends, and the height sensor corresponding to the designated height of the designated height file 100 detects the upper surface of the stacked sheets 2a, for example, the height sensor S2 ( The MPU 8 samples whether or not the height sensor corresponding to the designated height is detected), stops, and enters the print standby state.

Then, the operator starts the print start button 11
When 0 is pressed, the feeding of the sheet 2a is started, and the feed amount counter 102 starts counting. In addition, printing is started during this time. When the feed amount counter 102 counts the length of one page, it counts to the page number counter 102, and the feed amount counting of the next page is started.

If the sheets 2a stacked on the stacker table 7b are not folded properly during printing, the folding sensor Sb detects, for example (the MPU 8 samples whether or not the folding sensor corresponding to the designated height is detected). ), The operation of the apparatus is stopped by the detection signal, and "Folding failure" is displayed on the display unit 111.

After the printing is completed, the sheet 2a is cut at the perforation at the trailing edge of the last page by a cutting mechanism (not shown).
When the sensor SA detects the end of the sheet 2a (or the sheet 2a is completely used), the motor M4 is stopped and the motor M3 is stopped when the swing guide 6a swings to the right, for example.
Rotation to a predetermined angle to open the rocking plates 60a and 60b to the left and right, and after stopping for a predetermined time (for a time sufficient for the trailing edge of the paper 2a to fall, for example, 5 seconds), rock Board 60
Stop a and 60b by returning them to a parallel state.

In the above example, the case where the stacker table 7b is lowered to the designated height after the number of auto-loaded pages is sent out and the sheet 2a reaches the stacker table 7b has been described. In the case of a device provided with a guide, a method may be used in which the stacker table 7b is lowered to a designated height and then the number of auto-loaded pages is sent out.

In this way, if the height of the stacker table 7b is specified according to the type of the paper 2a, the number of auto-loaded pages corresponding to the height of the stacker table 7b is automatically sent out. Paper to reach
There is no excess or deficiency in 2a, there is no need for the operator to perform folding correction and start end processing after autoloading, and it is possible to save troublesome labor.

When the trailing edge of the sheet 2a passes through the swing guide 6a, the sensor SA detects it and opens the swing plates 60a and 60b downward to stop the trailing edge of the sheet 2a. Therefore, it is possible to prevent the paper 2a from being difficult to take out without falling while the end of the paper 2a is sandwiched between the rocking plates 60a and 60b.

[0053]

As described above, according to the present invention, according to the first and second aspects, the continuous sheets having the number of pages corresponding to the designated height of the stacking unit can be sent out, so that the sheets are automatically set. There is no excess or deficiency in the continuous paper, and the troublesome work of the operator for correcting the folding failure and the start end processing failure of the continuous paper in the stacking unit is eliminated.

According to the third aspect of the present invention, since the folding failure can be easily detected, the correction process can be performed immediately, and the stacking failure caused by feeding the continuous paper to the stacking unit in the presence of the folding failure can be eliminated. Can be saved.

According to the present invention, when the detecting means above the oscillating plate detects the end of the continuous paper, the pair of oscillating plates is opened downward and stopped, so that the end of the continuous paper is oscillated by the pair of oscillating plates. It is easy to fall from between the plates, and it is possible to prevent the continuous paper from being difficult to take out without falling while the end of the continuous paper is sandwiched between the rocking plates. There is an effect.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram corresponding to claim 1 of the present invention.

FIG. 2 is a principle configuration diagram corresponding to claim 4 of the present invention.

FIG. 3 is a configuration diagram (1) showing an embodiment of the present invention.

FIG. 4 is a configuration diagram (part 2) showing an embodiment of the present invention.

FIG. 5 is an explanatory diagram of a folding sensor.

FIG. 6 is an explanatory view showing a swing guide.

FIG. 7 is a flowchart of the embodiment (part 1).

FIG. 8 is a flowchart of the embodiment (part 2).

FIG. 9 is a side view of a laser printer to which the present invention is applied.

[Explanation of symbols]

1, 1a is the paper feed section, 2 is continuous paper, 2a
Is paper, 3 is paper feeding means, 3a and 3b are tractors,
5 is a processing unit, 5a is a printer unit, 7 is a stacking unit, 7a and 7b are stacker tables,
12 is a first indicating means, 12a is a height designation button, 13
Is a second instruction means, 13a is an autoload button, 14 is a moving means, 14a is a lifting mechanism, 15 is a setting means, 15a is an autoload page number file,
16 is detection means, 19 is drive control means, 17,18,19
a is a drive circuit, 60, 60a and 60b are oscillating plates, 90 is a control program, 92 is an autoload page number table, S1, S2
Is a height sensor, Sa and Sb are folding sensors, SA is a sensor

Claims (4)

[Claims] 1. A continuous paper (2) provided with perforations at page breaks from a paper feeding section (1) is sent out by a paper feeding means (3), and a predetermined means is provided on the continuous paper (2) by a processing means (5). A device for folding and stacking at a perforation on a stacking unit (7) whose height position is variable, the continuous paper being provided between the paper feeding unit (1) and the stacking unit (7).
Before automatically setting (2), based on a first indicating means (12) for indicating the height position of the stacking section (7) and an instruction of the height position by the first indicating means (12). And a setting means (15) for setting the number of pages to be fed out of the continuous paper (2) from the paper feed section (1) to the stacking section (7) according to the height position of the stacking section (7). , A moving means (14) for moving the stacking section (7) which is normally at the highest position to a height position instructed by the first instructing means (12), and the stacking section from the paper feeding section (1) The continuous paper up to the part (7)
A second instructing means (13) for instructing the automatic setting of (2), and based on the instruction of the second instructing means (13), the setting means (1
After the number of pages to be sent out of the continuous paper (2) set by (5) is sent by the paper feeding means (3), the moving means (14) moves the stacking section (7) to the first instruction means (1).
A sheet processing apparatus, which moves to a height position designated by 2). 2. The stacking unit is moved by the moving means (14) based on an instruction of a height position by the first instructing means (12).
After moving (7) to the designated height position, the second
The setting means (1
2. The sheet processing apparatus according to claim 1, wherein the number of pages to be sent out of the continuous paper (2) set by 5) is sent out by the paper feeding means (3). 3. A detection means, which is provided at a predetermined position above the stacking unit (7) and detects a folding failure of the continuous paper (2) on the stacking unit (7). The sheet processing apparatus according to claim 1 or claim 2. 4. A continuous paper (2) provided with perforations at page breaks from a paper feeding section (1) is sent out by a paper feeding means (3), and a predetermined means is provided on the continuous paper (2) by a processing means (5). A device for performing the process of 1. and folding and stacking at the perforation in the stacking unit (7), the continuous paper having a predetermined length at a predetermined position above the stacking unit (7).
(2) A pair of oscillating plates (60), which are rotatably supported at the upper end of the oscillating plates (60), are opposed to each other with a space therebetween, and oscillate above the pair of oscillating plates (60). Detecting means (16) for detecting the end of the continuous paper (2) and continuous paper (2) that swings in the same direction around the upper ends of the pair of rocking plates (60) and passes through the gap. The pair of rocking plates (60) when the end of the continuous paper (2) is detected by the detecting means (16).
And a drive control means (19) for opening and stopping the sheet in the downward direction.