JP2007050985A - Continuous paper treatment device and operation control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a continuous paper treatment device for automatically controlling a treatment speed into a proper treatment speed to avoid a bursting failure even when the treatment speed required for bursting treatment is changed with adverse aging effects including wear and dirt on machine device components or with changes caused in continuous paper to be treated by the environmental influences of temperature or humidity. <P>SOLUTION: Pulses are output from an encoder 5 which detects the fed amount of the continuous paper fed to a burster 9, the number of the pulses is measured by an encoder pulse counting means for a CPU 15, and the carrying-direction rear edge of the preceding paper after cut by the burster 9 is detected by a sensor part 12. Then, until the sensor part 12 detects the carrying-direction front edge of the following continuous paper, the carrying speed of the continuous paper is controlled in accordance with a counted value for the number of the pulses counted by the encoder pulse counting means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a continuous paper processing apparatus and an operation control method, and relates to a technique for continuously cutting a predetermined cutting portion while sequentially transferring continuous paper.

  Conventionally, as this type of continuous paper processing apparatus, for example, there is the one shown in FIG. In FIG. 4, the brush 1 disposed on the front side of the apparatus moves the continuous paper 2 along the guide plate 3, and the pin tractor 4 constitutes a transport means for moving the continuous paper 2 in a predetermined transport direction, and includes an encoder. 5 is used to measure the sheet feed amount.

  The slitter 6 includes a disc-shaped slitter upper blade 7 and a slitter lower blade 8, and cuts a margin portion along the transport direction at a predetermined position in the sheet width direction perpendicular to the transport direction. It is arranged on both sides in the width direction of the sheet 2 and is moved in the width direction of the continuous sheet 2 according to the width of the margin portion.

  The burster 9 cuts the continuous paper 2 into unit papers at perforations formed in advance on the continuous paper 2, and along the transfer direction of the continuous paper 2, the front rubber roller unit 10, the burst roll unit 11, and the sensor. The part 12 and the rear rubber roller part 13 are sequentially arranged.

  In the front rubber roller section 10, an upper front rubber roller 10 a arranged so as to be movable up and down is in contact with the lower front rubber roller 10 b by its own weight. Rotates at high speed. In the rear rubber roller unit 13, an upper rear rubber roller 13a disposed so as to be movable up and down is disposed with a small gap between the upper rear rubber roller 13a and the lower rear rubber roller 13b. It rotates at a faster peripheral speed than the front rubber roller unit 10.

  The continuous paper 2 sent out by the pin tractor 4 and the front rubber roller unit 10 passes between the upper roll 11a and the lower roll 11b of the burst roll unit 11 and passes between the light emitting sensor 12a and the light receiving sensor 12b of the sensor unit 12. The rear rubber roller part 13 reaches between the upper rear rubber roller 13a and the lower rear rubber roller 13b.

  At this time, the front end of the continuous paper 2 passes between the light emitting sensor 12a and the light receiving sensor 12b and blocks the optical axis, whereby the front end position of the continuous paper 2 is detected by the sensor unit 12. At this timing, the encoder 5 Start measuring the paper feed amount.

  When the paper feed amount measured by the encoder 5 reaches a predetermined feed amount set in advance in accordance with the top and bottom dimensions of the unit paper, the perforation of the continuous paper 2 corresponds to the burst roll unit 11. At this time, in the front rubber roller unit 10, the upper front rubber roller 10 a is pressed against the lower front rubber roller 10 b through the continuous paper 2, and in the rear rubber roller unit 13, the upper rear rubber roller 13 a is moved down through the continuous paper 2. It is pressed by the rear rubber roller 13b.

  Then, when the rear rubber roller unit 13 rotates at a faster peripheral speed than the front rubber roller unit 10, the continuous paper 2 between the front rubber roller unit 10 and the rear rubber roller unit 13 as a result of the relative speed difference therebetween. When the burst roll unit 11 comes into contact with the perforations of the continuous paper 2, the continuous paper 2 is cut (bursted) at the perforations.

  Simultaneously with this cutting, the front rubber roller unit 10 and the rear rubber roller unit 13 return to the initial state, and the cut unit paper is discharged to the conveyor (or drop-type paper receiving plate) 15 by the paper discharge roller unit 14. Then, the subsequent continuous paper 2 is transferred by the front rubber roller unit 10, and the above-described operation is repeated.

  Patent Document 1 is a prior art document relating to such a continuous paper processing apparatus. This makes it possible to automatically register the paper processing conditions such as the paper cutting size and the marginal slit position, and eliminates the complexity associated with manual operation and pre-barcoding.

  For this reason, in Patent Document 1, each section such as a cutting roller section and a tractor section of the sheet processing apparatus is moved and adjusted so as to conform to processing conditions of a sheet to be processed, for example, various conditions such as a cutting size and a marginal slit position, The state of the sheet processing apparatus after the adjustment is detected directly or indirectly by adjusting the amount of displacement at the time of adjusting each part, for example, by detecting the amount of rotation of a motor that is a driving source of each part with a potentiometer. The detected amount is registered as setting data in the memory of the control unit.

  Then, a code number or the like corresponding to the setting data is set at the time of registration, and by inputting the code number or the like, a motor or the like is driven corresponding to the registered setting data, and the specified setting position is set. Each part is moved and adjusted.

Moreover, there exists patent document 2 as another prior art document. This is to knock down the trailing edge of the paper discharged from the paper cutting processing area by the rotating discharge fin, an optical origin sensor for detecting the rotational position of the discharge fin, an encoder for monitoring the paper feed speed, and An encoder sensor and a second paper sensor for detecting the position of the paper in the paper feed path, and when the paper reaches the position of the second paper sensor, the discharge fins at that time correspond to the paper feed speed at that time. The amount of advance or delay from a desired position is calculated, and the CPU controls the amount of rotation of the discharge fin variably to correct the amount of advance or delay.
JP-A-6-278090 Japanese Patent Laid-Open No. 11-193173

  In the prior art described above, the processing speed (conveying speed) required to cut the continuous paper 2 at the perforation by the burst roll portion 11 of the burster 9 is the quality of the continuous paper 2 and the number of overlapping sheets (copying style). It depends on the difference.

  When burst processing is performed on continuous paper, the rear rubber roller portion 13 of the burster 9 rotates at a faster peripheral speed than the front rubber roller portion 10, so that slip may occur with respect to the continuous paper 2 during burst. As the conveying speed of the continuous paper 2 is lower, the occurrence of slip in the rear rubber roller unit 13 is suppressed, and the positional deviation between the perforation of the continuous paper 2 and the burst roll unit 11 is less likely to occur. On the contrary, the higher the conveying speed of the continuous paper 2 is, the more easily slippage occurs in the rear rubber roller portion 13 of the burster 9 and the misalignment between the perforation of the continuous paper 2 and the burst roll portion 11 occurs. It becomes easy.

As the position of the perforation of the continuous paper 2 and the burst roll portion 11 are shifted, the occurrence of a burst miss is more likely to occur.
For this reason, if burst processing is performed in a state where the processing speed (conveying speed) is inappropriate, the cutting timing is caused by slippage at the rear rubber roller unit 13 and displacement between the burst roll unit 11 and the perforation of the continuous paper 2. There is a problem that a processing error (burst miss) occurs due to a delay in processing, a force (impact force) for cutting (burst) the continuous paper 2 is insufficient, and cutting is incomplete, resulting in a jam state. .

  Even if the continuous paper processing apparatus capable of setting and registering an appropriate processing speed is operated to process at an appropriate speed of the target continuous paper, a change in paper quality due to a difference in humidity at that time, or a perforation Due to quality changes or factors such as printing ink on the paper adhered to the roller during long-term use, the roller becomes slippery and burst errors may occur.

  The present invention solves the above-described problems, and burst processing is performed by changes over time such as wear and dirt in mechanical device parts and changes that occur in continuous paper to be processed due to influences from the environment such as temperature and humidity. It is an object of the present invention to provide a continuous paper processing apparatus and an operation control method capable of automatically controlling the processing speed to an appropriate processing speed so as not to cause a burst miss even if the processing speed required for the above changes.

  In order to solve the above problems, the continuous paper processing apparatus of the present invention includes a front roller transport unit that feeds continuous paper continuous in the transport direction, a rear roller transport unit that rotates at a faster peripheral speed than the front roller transport unit, Burst means that is positioned between the preceding roller conveying means and the latter roller conveying means to cut continuous paper at a predetermined position in the conveying direction, sensor means that is positioned subsequent to the burst means to detect the paper, and first roller conveying means And an encoder pulse counting means for counting the number of pulses output from the encoder, and a trailing end of the preceding paper after cutting in the burst means. After the edge is detected by the sensor means, the sensor means detects the front edge in the conveyance direction of the subsequent continuous paper. The number of pulses outputted from the encoder are counted by the encoder pulse counting means between at, and controlling the transport speed of the continuous paper on the basis of the number of pulses counted value.

The sheet conveyance speed is controlled such that the count value of the number of pulses counted by the encoder pulse counting means is maintained at a constant value.
Further, the sheet conveyance speed is set to a predetermined speed at the start of operation, and the count value of the number of pulses counted by the encoder pulse counting means at this predetermined speed decreases from a predetermined value or becomes a predetermined lower limit value smaller than the predetermined value. Sometimes, the control is performed so that the count value becomes the predetermined value by lowering the speed than the predetermined speed.

  Further, the paper conveyance speed is gradually increased after the start of operation, and when the count value of the number of pulses counted by the encoder pulse counting means decreases from a predetermined value or when the predetermined lower limit value is smaller than the predetermined value, Control is performed such that the count value becomes the predetermined value by lowering the predetermined speed.

  The operation control method of the continuous paper processing apparatus of the present invention is to pull the continuous paper fed by the front roller transport means between the rear roller transport means rotating at a faster peripheral speed than the front roller transport means, In the continuous paper processing apparatus that cuts the continuous paper at a predetermined position in the transport direction by the burst means located between the rear stage roller transport means and the trailing edge of the preceding paper in the transport direction after cutting is detected by the sensor means. The number of pulses output from the encoder for measuring the continuous paper feed amount is counted by the encoder pulse counting means until the sensor means detects the front edge in the conveyance direction of the subsequent continuous paper. Based on the above, the conveyance speed of the continuous paper is controlled.

  As described above, according to the present invention, the continuous sheet is pulled between the front roller transport unit and the rear roller transport unit having different peripheral speeds, and the burst unit comes into contact with a predetermined position in the transport direction of the continuous sheet. Is cut at a perforation or the like.

  The distance by which the trailing edge in the transport direction of the preceding paper reaches the sensor means after cutting the continuous paper by the burst means, and the distance by which the front edge in the transport direction of the subsequent continuous paper reaches the sensor means, In addition, the number of pulses output from the encoder for detecting the sheet feed amount during this period is always constant regardless of the conveyance speed.

  For this reason, in the state in which the slip to the continuous paper does not occur in the front roller transport unit or the rear roller transport, the sensor unit detects the front edge in the transport direction of the preceding paper and detects the front edge in the transport direction of the subsequent continuous paper. In the meantime, the number of pulses counted by the encoder pulse counting means is constant regardless of the conveyance speed.

  However, due to changes over time, such as wear and stains in machine parts, and changes that occur in the continuous paper to be processed due to the influence of the environment such as temperature and humidity, the appropriate continuous paper conveyance speed required for the cutting process can be reduced. If the change occurs, a slip or the like with respect to the continuous paper may occur in the front roller transport unit or the rear roller transport, and the cutting timing in the burst unit may be delayed or may be incompletely cut.

  At this time, the distance between the trailing edge in the conveyance direction of the preceding paper after cutting and the leading edge in the conveyance direction of the subsequent continuous paper becomes shorter than usual, and the trailing edge in the conveyance direction of the preceding paper in the sensor means The time from the detection to the detection of the leading edge in the conveyance direction of the subsequent continuous sheet is shorter than normal, and the number of pulses output from the encoder during this period is smaller than normal.

  Therefore, the count value of the number of pulses counted by the encoder pulse counting means serves as an index indicating the cutting state. By controlling the conveying speed of the continuous paper using the count value of the pulse number as an index, a mistake in the cutting process does not occur. The conveyance speed can be controlled to an appropriate conveyance speed (processing speed).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The basic structure of the continuous paper processing apparatus of the present invention is the same as that shown in FIG. 4, and here, the basic configuration of the continuous paper processing apparatus in the present embodiment will be described with reference to FIG. However, detailed description of other constituent elements is omitted by using the same reference numerals.

In FIG. 4, the pin tractor 4 conveys the continuous sheet 2 in a predetermined conveyance direction, and the encoder 5 measures the sheet feed amount.
The burster 9 cuts the continuous paper 2 into unit papers at perforations formed in advance on the continuous paper 2, and a front rubber roller unit 10 that constitutes a pre-stage roller transport unit along the transport direction of the continuous paper 2. A burst roll section 11 serving as a burst means, a sensor section 12 serving as a sensor means, and a rear rubber roller section 13 serving as a rear roller conveying means are sequentially arranged.

  The front rubber roller unit 10 feeds the continuous paper 2 in the transport direction, and an upper front rubber roller 10a arranged so as to be movable up and down is in contact with the lower front rubber roller 10b under its own weight. The front rubber roller 10b rotates at the same peripheral speed as the pin tractor 4. The front rubber roller unit 10 includes a cam mechanism or the like as means for pressing the upper front rubber roller 10a against the lower front rubber roller 10b.

  The rear rubber roller section 13 rotates at a faster peripheral speed than the front rubber roller section 10, and the upper rear rubber roller 13a disposed so as to be movable up and down has a minute gap between the lower rear rubber roller 13b. Has been placed. The rear rubber roller unit 13 includes a cam mechanism or the like as means for pressing the upper rear rubber roller 13a against the lower rear rubber roller 13b.

The burster 9 drives the front rubber roller portion 10 and the rear rubber roller portion 13 in synchronization with a timing belt or the like.
The sensor unit 12 includes a light emitting sensor 12a and a light receiving sensor 12b, and detects paper passing between the two.

  As shown in FIG. 1, the continuous paper processing apparatus includes a CPU 15 as a control device. The CPU 15 includes a pin tractor 4, a slitter 6, a burster 9, a paper discharge roller unit 14, a sensor unit 12, and an encoder 5. It controls based on the input signal from.

  The encoder 5 is not limited to the one that detects the rotation of the pin tractor 4 but may be one that detects the rotation of a main motor (not shown) that is a driving source of the continuous paper processing apparatus. What detects rotation may be used. The CPU 15 has an encoder pulse counting means for measuring the number of pulses output from the encoder 5 by a program, and calculates the feed amount of the continuous paper 2 based on the measured number of pulses.

  In the above-described configuration, the continuous paper 2 to be processed is conveyed by the pin tractor 4 and the front rubber roller unit 10, and the continuous paper 2 fed out in the conveying direction is between the upper roll 11a and the lower roll 11b of the burst roll unit 11. And passes between the light emitting sensor 12a and the light receiving sensor 12b of the sensor unit 12 and reaches between the upper rear rubber roller 13a and the lower rear rubber roller 13b.

  At this time, if the front edge of the continuous paper 2 in the transport direction passes between the light emitting sensor 12a and the light receiving sensor 12b and interrupts the optical axis, the sensor unit 12 detects the leading end position of the continuous paper 2. At this timing, the CPU 15 starts measuring the feed amount of the continuous paper 2 conveyed by the pin tractor 4 and the front rubber roller unit 10 by the encoder 5.

  The encoder 5 measures the feed amount of the continuous paper 2 fed to the rear rubber roller portion 13 through the front rubber roller portion 10, and the feed amount of the continuous paper 2 measured by the encoder 5 is preset according to the top and bottom dimensions of the unit paper. When the predetermined feed amount is reached, the perforation of the continuous paper 2 corresponds to the burst roll unit 11.

  At this time, in the front rubber roller unit 10, the upper front rubber roller 10 a is pressed against the lower front rubber roller 10 b through the continuous paper 2, and in the rear rubber roller unit 13, the upper rear rubber roller 13 a is moved down through the continuous paper 2. It is pressed by the rear rubber roller 13b.

  Then, when the rear rubber roller unit 13 rotates at a faster peripheral speed than the front rubber roller unit 10, the continuous paper 2 between the front rubber roller unit 10 and the rear rubber roller unit 13 as a result of the relative speed difference therebetween. , And the burst roll unit 11 comes into contact with the perforation of the continuous paper 2 so that the continuous paper 2 is cut (bursted) at the perforation.

  Simultaneously with this cutting, the front rubber roller unit 10 and the rear rubber roller unit 13 return to the initial state, the cut unit paper is discharged by the paper discharge roller unit 14, and the subsequent continuous paper 2 is transferred to the front rubber roller unit. 10 and the above operation is repeated.

  In this operation, after cutting by the burst roll unit 11, the CPU 15 passes the sensor unit 12 at the rear edge in the conveyance direction of the preceding sheet conveyed by the sheet discharge roller unit 14, and receives the light from the light emitting sensor 12a as a light receiving sensor. The position of the trailing edge in the sheet conveyance direction is detected by receiving light by 12b. Thereafter, the sensor unit 12 detects the position of the front end edge of the continuous paper 2 in the transport direction by passing the front end edge of the continuous paper 2 between the light emitting sensor 12a and the light receiving sensor 12b and blocking the optical axis. During this time, the CPU 15 counts the number of pulses output from the encoder 5 by the encoder pulse counting means.

  As shown in FIG. 2, the continuous paper 2 is transported at a predetermined transport speed, and in the normal state of burst in which no slip occurs with respect to the continuous paper 2 in the front rubber roller portion 10 or the rear rubber roller portion 13 of the burster 9, after the burst In the output of the sensor unit 12 shown as a paper interval waveform, an interval Ta between the time when the sensor unit 12 detects the leading edge of the preceding sheet in the conveying direction and the time of detecting the trailing edge of the subsequent continuous sheet 2 in the conveying direction. The distance shown is constant, and the number of pulses counted by the encoder pulse counting means of the CPU 15 in this interval Ta is constant.

  By the way, after the continuous paper 2 is cut by the burst roll unit 11, the distance that the trailing edge of the preceding paper in the transport direction reaches the sensor unit 12, and the front edge of the subsequent continuous paper 2 in the transport direction is the sensor unit. The distance traveled until reaching 12 is constant, and naturally, the encoder 5 detects the feed amount of the continuous paper 2 and the feed amount of the continuous paper 2 conveyed by the pin tractor 4 and the front rubber roller unit 10 during this period. The number of pulses output from is always constant regardless of the conveyance speed. Therefore, the number of pulses measured in the interval Ta is always constant regardless of the conveyance speed.

  However, appropriate transport of the continuous paper 2 necessary for the cutting process due to changes over time such as wear and dirt in machine equipment parts and changes that occur in the continuous paper 2 to be processed due to the influence of the environment such as temperature and humidity. When the speed changes, even if the continuous paper 2 is conveyed at a predetermined conveyance speed, a slip or the like with respect to the continuous paper 2 occurs in the front rubber roller portion 10 or the rear rubber roller portion 13 of the burster 9, and the burst roll portion 11. There is a case where the cutting timing in is delayed or an incomplete cutting state occurs.

  At this time, as shown in FIG. 3, in the output of the sensor unit 12 shown as a post-burst paper interval waveform, the sensor unit 12 detects the trailing edge of the preceding paper conveyance direction, and the subsequent continuous paper 2 conveyance direction The distance indicated by the interval Tb until the front edge is detected is shorter than the distance indicated by the normal interval Ta shown in FIG. 2, and the number of pulses output from the encoder 5 during this period is less than the normal time. Become.

  Here, in FIG. 3, the interval Tb is a continuous edge of the preceding sheet in the conveying direction and a trailing edge of the succeeding continuous sheet 2 in the conveying direction because the continuous sheet 2 is completely burst (cut) but slipped. The interval Tc indicates a state in which the continuous paper 2 bursts (cuts) incompletely in the center in the width direction and the continuous paper 2 is connected on both sides in the width direction. The interval Td indicates a state immediately before a jam occurs due to a burst miss. Prediction of the occurrence of jam by the interval Td is performed by referring to the fact that the waveform of the current value of the main motor becomes larger than usual. In this case, an ammeter for measuring the current value of the main motor is provided in the continuous paper processing apparatus and is used as a control index in the CPU 15.

  Therefore, the count value of the number of pulses counted by the encoder pulse counting means of the CPU 15 serves as an index indicating a burst (disconnection) state, and the CPU 15 controls the driving of the main motor by using the count value of the pulse number as an index. And the conveyance speed of the continuous paper 2 by the front rubber roller unit 10 can be controlled to an appropriate conveyance speed (processing speed) so as not to cause a cutting processing error.

For this reason, the CPU 15 controls the conveyance speed so that the count value of the number of pulses counted by the encoder pulse counting means is kept constant during operation of the continuous paper processing apparatus.
Alternatively, the CPU 15 operates the continuous paper 2 to be processed at the start of operation at a predetermined standard conveyance speed, and counts the encoder at the predetermined speed by the encoder pulse counting means during operation of the continuous paper processing apparatus. When the count value of the number of pulses to be processed is smaller than a predetermined standard predetermined value for the continuous paper 2 to be processed, or when the predetermined lower limit value is smaller than the predetermined value, the transport speed is set to the predetermined speed. And the count value is controlled to be the predetermined value.

  Alternatively, the CPU 15 operates if the conveyance speed is gradually increased after the operation is started, and the count value of the number of pulses counted by the encoder pulse counting means during the operation of the continuous paper processing device is the same as the continuous paper 2 to be processed. Control is performed so that the count value becomes the predetermined value by lowering the conveying speed below the predetermined speed when the predetermined lower limit value is smaller than the predetermined standard predetermined value or when the predetermined lower limit value is smaller than the predetermined value. To do.

1 is a block diagram showing a continuous paper processing apparatus in an embodiment of the present invention. Output signal waveform diagram of encoder, sensor unit and main motor ammeter showing normal burst state of continuous paper processing apparatus in same embodiment Output signal waveform diagram of encoder, sensor unit and main motor ammeter showing burst error precursor state of continuous paper processing apparatus in same embodiment Schematic diagram showing the configuration of a conventional continuous paper processing apparatus

Explanation of symbols

2 Continuous paper 4 Pin tractor 5 Encoder 6 Slitter 9 Burster 10 Front rubber roller part 10a Upper front rubber roller 10b Lower front rubber roller 11 Burst roll part 11a Upper roll 11b Lower roll 12 Sensor part 12a Light emitting sensor 12b Light receiving sensor 13 Rear rubber Roller unit 13a Upper rear rubber roller 13b Lower rear rubber roller 14 Paper discharge roller unit 15 CPU

Claims (5)

Pre-stage roller transport means for feeding continuous paper continuous in the transport direction, post-roller transport means rotating at a faster peripheral speed than the pre-roller transport means, and continuous paper positioned between the pre-roller transport means and the post-roller transport means Burst means for cutting the paper at a predetermined position in the transport direction, sensor means for detecting paper located at the subsequent stage of the burst means, and encoder for detecting the feed amount of continuous paper sent to the rear roller transport means via the front roller transport means And encoder pulse counting means for counting the number of pulses output from the encoder, and the burst means detects the trailing edge in the transport direction of the preceding paper after cutting by the sensor means, and then the continuous paper followed by the sensor means The number of pulses output from the encoder until the front edge in the transport direction is detected Scan counted by the counting unit, the continuous sheet processing apparatus characterized by controlling the transport speed of the continuous paper on the basis of the number of pulses counted value. 2. The continuous paper processing apparatus according to claim 1, wherein the paper conveyance speed is controlled so that the count value of the number of pulses counted by the encoder pulse counting means is maintained at a constant value. The sheet conveyance speed is set to a predetermined speed at the start of operation, and when the count value of the number of pulses counted by the encoder pulse counting means at this predetermined speed decreases from a predetermined value or when the predetermined lower limit value is smaller than the predetermined value. The continuous paper processing apparatus according to claim 1, wherein the count value is controlled to be lower than the predetermined speed so that the count value becomes the predetermined value. The sheet conveyance speed is gradually increased after the start of operation, and when the count value of the number of pulses counted by the encoder pulse counting means decreases below a predetermined value, or when the predetermined lower limit value is smaller than the predetermined value, The continuous paper processing apparatus according to claim 1, wherein the count value is controlled to be lower than a speed so as to become the predetermined value. The continuous paper sent out by the front roller transport means is pulled between the rear roller transport means rotating at a faster peripheral speed than the front roller transport means, and the burst means located between the front roller transport means and the rear roller transport means. In a continuous paper processing apparatus that cuts a continuous paper at a predetermined position in the transport direction, the sensor means detects the trailing edge of the preceding paper in the transport direction after cutting, and then the front edge in the transport direction of the continuous paper that the sensor means follows The number of pulses output from the encoder that measures the continuous paper feed amount is counted by the encoder pulse counting means until the continuous paper is detected, and the conveyance speed of the continuous paper is controlled based on the counted number of pulses. An operation control method for a continuous sheet processing apparatus.

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