Sheet processing device, image formation system and program

Abstract

To easily set a position of sheet processing subjected to a sheet.SOLUTION: A sheet processing device 20 includes: a sheet processing unit (cutting device 30) for subjecting a sheet to be conveyed to sheet processing in a width direction perpendicular to a conveyance direction; a setting unit (CPU 21) for setting a paper processing position from a tip or a rear end of the sheet in the conveyance direction; and a position inversion unit (CPU 21) for inverting the set sheet processing position in the sheet conveyance direction, according to the direction of the sheet surface to be conveyed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a paper processing apparatus, an image forming system, and a program. [Background technology]

[0002] Conventionally, there is known a paper processing device that conveys paper by a conveying roller and performs a predetermined process on the paper. For example, a paper processing device is a cutting device that cuts paper at a cutting position. In the cutting device, multiple cutting positions are set based on the leading edge of the paper in the conveying direction, and the paper is cut multiple times in a direction perpendicular to the conveying direction.

[0003] For example, Patent Document 1 describes that a sheet of paper with an image formed on it is transported to a cutting device, and the cutting device cuts the sheet of paper at a set cutting position. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-91010 Summary of the Invention [Problem to be solved by the invention]

[0005] The cutting position is set manually because it is necessary to take into account the inherent variability of the cutting machine used. Even if the same image is formed on the paper, the image orientation will be different if the paper side (FaceUp / FaceDown) that the cutting device receives is different. Therefore, in order to cut at the desired position, it is necessary to set the cutting position corresponding to each paper side. In other words, when the paper is turned over, the cutting positions are set separately manually. In the case of an inline machine, the side of the paper to be cut is determined by the job settings and the configuration of the paper cutting system, but it is difficult for the user to grasp the side of the paper to be cut.

[0006] SUMMARY OF THE PRESENT DISCLOSURE It is therefore an object of the present invention to more easily set the position of a paper treatment to be performed on a paper sheet. [Means for solving the problem]

[0007] In order to solve the above problems, the paper processing device according to the present invention comprises: a paper processing section that processes the paper in a width direction perpendicular to the conveying direction of the conveyed paper; a setting unit that sets a paper processing position from a leading end or a trailing end of the paper in a transport direction; a position reversing unit that reverses the set paper processing position in the paper transport direction according to the orientation of the paper surface to be transported; has.

[0008] Further, the image forming system according to the present invention comprises: an image forming unit that forms an image on a sheet; an image forming apparatus including a sheet reversing unit capable of reversing a sheet on which an image is formed by the image forming unit; the sheet processing device, which processes the sheet on which the image is formed by the image forming device; Equipped with.

[0009] In addition, the program according to the present invention is A computer of a paper processing device having a paper processing section that processes paper along a width direction perpendicular to a conveying direction of the conveyed paper, a setting unit that sets a paper processing position from a leading end or a trailing end of the paper in a conveyance direction; a position reversing unit that reverses the set paper processing position in the paper transport direction according to the orientation of the paper surface to be transported; Function as. Effect of the Invention

[0010] According to the present invention, the position of the paper processing to be performed on the paper can be set more easily. [Brief description of the drawings]

[0011] [Figure 1] 1 is a configuration diagram of an image forming system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a block diagram showing a functional configuration of the image forming system. [Diagram 3] FIG. [Figure 4] FIG. 13 is an image diagram of a cutting parameter setting screen. [Diagram 5] FIG. 13 is an image diagram showing the relationship between cutting parameters and paper. [Figure 6] FIG. 13 is an image diagram of a cutting position correction screen. [Figure 7] FIG. 13 is an image diagram of a portion where a correction value is applied in the case of a tip position reference. [Figure 8] FIG. 13 is an image diagram of a portion to which a correction value is applied in the case of a rear end position reference. [Figure 9] FIG. 13 is an image diagram of a reflection possibility check screen. [Figure 10] 1 is a configuration diagram of an image forming system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings, however, the scope of the present invention is not limited to the illustrated examples.

[0013] [Outline of image forming system; Part 1] First, the configuration of an image forming system 100 will be described with reference to FIGS. Fig. 1 is a configuration diagram of an image forming system 100 according to an embodiment of the present invention. Fig. 2 is a block diagram showing the functional configuration of the image forming system 100. The image forming system 100 is configured to include an image forming device 10 that performs an image forming process on paper P as a sheet, and a paper processing device 20 that performs paper processing on the paper P on which an image has been formed by the image forming device 10. The paper processing includes cutting processing, creasing processing, perforation forming processing, and the like. In the following, a case will be described in which the paper processing is cutting processing.

[0014] [Image forming device] The image forming apparatus 10 forms an image on a sheet P in accordance with an image formation instruction received from a PC (Personal Computer) or the like via a communication network. The image forming apparatus 10 conveys the sheet P on which the image has been formed to the sheet processing apparatus 20. The image forming apparatus 10 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Unit) 13, a memory unit 14, a paper feeding unit 15, an image reading unit 16, an image forming unit 17, a paper inversion unit 18, an operation display unit 19, a communication I / F (InterFace) 110, etc.

[0015] The CPU 11 reads out a program stored in the ROM 12, loads it into the RAM 13, and controls the operation of each part of the image forming apparatus 10 in cooperation with the loaded program. The ROM 12 is configured from a non-volatile semiconductor memory or the like, and stores the system program, various processing programs that can be executed on the system program, various data, and the like. The RAM 13 is configured from a volatile semiconductor memory or the like, and forms a work area for temporarily storing programs read from the ROM 12, input or output data, parameters, and the like during various processes executed by the CPU 11.

[0016] The storage unit 14 is configured with a HDD (Hard Disk Drive), a non-volatile semiconductor memory, etc., and stores various data.

[0017] The paper feed unit 15 has multiple paper feed trays T1 to T3 that can store paper P of different sizes, types (paper grades), basis weights, etc., and supplies the paper P stored in the specified paper feed tray T1 to T3 to the image forming unit 17.

[0018] The image reading unit 16 reads an original document and generates image data. Specifically, the image reading unit 16 reads light that is irradiated from a light source and reflected by the original document using a CCD (Charge Coupled Device) image sensor or the like.

[0019] The image forming unit 17 forms an image on the paper P. The image forming unit 17 charges a photoconductor in a charging unit, exposes and scans the photoconductor with a laser beam emitted by an exposure unit based on image data to form an electrostatic latent image, develops the electrostatic latent image with toner in a developing unit, transfers the toner image to the paper P in a transfer unit, and fixes the toner image to the paper P in a fixing unit.

[0020] The paper inverting section 18 inverts the paper that has passed through the image forming section 17, and conveys it to the image forming section 17 again.

[0021] The operation display unit 19 includes a display unit configured with an LCD (Liquid Crystal Display) that displays various screens, and an operation unit configured with a touch panel and various keys stacked on the display unit. The operation display unit 19 outputs operation signals input by touch operations or key operations to the CPU (Central Processing Unit) 11 (see FIG. 2).

[0022] The communication I / F 110 is composed of a NIC (Network Interface Card), a modem, etc., and transmits and receives data to and from the paper-sheet processing apparatus 20 and a PC (Personal Computer).

[0023] [Paper handling device] The paper processing device 20 is a cutter that performs cutting processing on the paper P. The paper processing device 20 performs cutting processing on the paper P carried in from the image forming device 10 as necessary, and discharges the product created by the cutting processing onto the paper output tray T11, T12 or the card tray T13. The paper processing device 20 includes a CPU 21, a ROM 22, a RAM 23, a storage unit 24, a paper transport unit 25, a setting input unit 26, a communication I / F 28, a cutting device 30 as a paper processing unit, a leading edge detection unit 36, and the like.

[0024] The CPU 21, the ROM 22, and the RAM 23 are similar to the CPU 11, the ROM 12, and the RAM 13, except that the object controlled by the CPU 21 is the paper-sheet processing apparatus 20. The CPU 21 functions as a setting unit that sets a cutting position as a paper processing position from the leading edge or trailing edge of the paper in the transport direction. The CPU 21 functions as a position reversing unit that reverses the set cutting position in the conveying direction of the paper in accordance with the orientation of the surface of the conveyed paper. The CPU 21 functions as a correction unit that corrects the paper processing position set by the setting unit in response to a user operation. The CPU 21 functions as a display control unit that causes the display unit to display whether the paper processing position is corrected based on the leading edge position or the trailing edge position when the correction unit performs correction. The CPU 21 functions as a determination unit that, based on a job indicating that the paper is to be cut, determines the side of the paper when the paper reaches the cutting unit based on the image-formed side and the number of times the paper is flipped over between after the image is formed and when the paper reaches the cutting position.

[0025] The storage unit 24 is configured with a HDD, a non-volatile semiconductor memory, or the like, and stores various data. The storage unit 24 functions as a storage unit that stores the cutting position and the orientation of the paper surface that are set by the setting unit.

[0026] The paper transport section 25 is composed of multiple transport rollers 35 arranged along the transport paths D1 and D2, and transports the paper P brought in from the image forming device 10 until it is discharged onto the paper output trays T11 and T12 or the card tray T13. The paper transport section 25 functions as a transport section, and is composed of components including at least one of a transport roller and a transport belt.

[0027] A long paper transport path D2 is provided adjacent to the transport path D1, branching off from the transport path D1 and joining the transport path D1 downstream. The long paper transport path D2 is used as a buffer when transporting the long paper. Further, the transport paths D1 and D2 are provided with transport rollers 35 that transport the paper P by rotating a pair of rollers that are provided at a specified interval along each path to sandwich the paper P from the front and back. Further, the transport paths D1 and D2 may be provided with a transport belt on which the paper P is placed and transported. A drive motor for driving the transport rollers 35 and the transport belt is connected to the transport rollers 35 and the transport belt. The transport rollers 35 and the transport belt are driven by the operation of the drive motor.

[0028] The setting input unit 26 includes a display unit configured with an LCD for displaying various screens, and an operation unit configured with a touch panel and various keys stacked on the display unit. The setting input unit 26 outputs operation signals input by touch operations or key operations to the CPU 21.

[0029] The communication I / F 28 as a communication unit is composed of a NIC, a modem, etc., and transmits and receives data to and from the image forming apparatus 10.

[0030] The cutting device 30 performs a cutting process to cut the transported paper P. The cutting device 30 includes, at a plurality of positions on the transport path D1 of the paper P, FD cutting units 31 to 33 as a second cutting unit and a CD cutting unit 34 as a first cutting unit. The FD cutting units 31 to 33 are slitters that cut the paper P along the feed direction F. The FD cutting units 31 and 32 are top and bottom slitters that cut the ends (rear and front sides) of the paper P in a direction C that is parallel to the plane of the paper P and perpendicular to the feed direction F (referred to as the "transport perpendicular direction"). The FD cutting unit 33 is a gutter cut slitter that cuts the margins between adjacent products in the transport perpendicular direction C of the paper P along the feed direction F. The FD cutting units 31 to 33 are each equipped with an actuator such as a motor (not shown) and can adjust the cutting position within a specified range in the conveyance orthogonal direction C. This allows the paper P to be cut along the conveyance direction F at positions that are a specified distance from both ends of the paper P in the conveyance orthogonal direction C. The CD cutting unit 34 is a guillotine cutter that cuts the sheet P along the conveyance orthogonal direction C. The CD cutting unit 34 can arbitrarily adjust the cutting position in the conveyance direction F of the sheet P in cooperation with the conveyance roller 35.

[0031] The leading edge detection unit 36 ​​is provided at a position on the conveying path D1 immediately before the cutting device 30. This leading edge detection unit 36 ​​is a sensor that detects the leading edge of the conveyed paper P. For example, any sensor that can detect the passage of the leading edge of the paper P can be used. Examples include a photointerrupter that optically detects the leading edge, and a microswitch that detects it by contact. The CPU 21 reads the driving rotation number and driving time of each transport roller 35 after the leading edge of the paper P is detected by the leading edge detection unit 36, and can recognize where on the transport path D1 the leading edge of the paper P is located. Then, the CPU 21 controls the cutting units 31-34 of the cutting device 30 to cut the transported paper P at an appropriate timing.

[0032] Although the cutting device 30 has been described above as an example of the paper processing section, the paper processing section is not limited to this. The paper processing section may be a crease device or a perforation forming device.

[0033] The waste box 29 is installed below the cutting device 30, and stores cutting waste generated during the cutting operation by the cutting device 30 and dropping from the cutting device 30. The user opens the door of the paper processing device 20, removes the waste box 29, and discards the cutting waste in the waste box 29.

[0034] [Cutting process] The cutting process executed by the sheet processing apparatus 20 will be described with reference to FIG. First, the CPU 21 causes the setting input unit 26 to display a cutting parameter setting screen shown in Fig. 4. Based on the cutting parameters input by the user from the cutting parameter setting screen, the CPU 21 sets the cutting parameters in the sheet processing apparatus 20 (step S1).

[0035] Here, the cutting parameter setting screen will be described with reference to FIG. Area A1 is an area that displays an image of the cutting profile. The area indicated by the thick line is an image of the paper before it is cut. The area indicated by the thin line is an image of the cutting position. Area A2 is an area for displaying general setting information of the cutting profile, such as the profile name and paper size. Area A3 is an area that displays the cutting setting information of the cutting profile. The cutting setting information sets cutting parameters such as the finished size (length), finished size (width), leading edge position, trailing edge position, paper output tray, and paper surface. In this example, the paper is divided into multiple pieces in the transport direction, and a paper with a transport direction width of 450.0 mm is cut into two pieces with a finishing size of 210.0 mm (width). The cut paper is placed face up on the paper output tray T11. When the paper is to be divided into a plurality of parts, the area A3 may be an area for prompting the user to input the number of parts to be divided.

[0036] FIG. 5 shows the relationship between the cutting parameters and the paper. The leading edge position is a position where the leading edge of the paper is cut in a direction perpendicular to the conveying direction. The finished size (width) is the length of the paper in the transport direction after cutting. The finished size (vertical width) is the length of the paper after cutting in the direction perpendicular to the conveying direction (width direction). The rear end position is a position where the rear end of the paper is cut in a direction perpendicular to the conveying direction. The user inputs the above parameters as numerical values ​​using the touch panel or various keys of the setting input unit 26. In the example of Fig. 5, the parameters are set in units of 0.1 mm.

[0037] Next, the CPU 21 causes the setting input unit 26 to display a cutting position correction screen shown in FIG. Based on the correction value input by the user through the cutting position correction screen, the CPU 21 sets the correction value in the sheet processing apparatus 20 (step S2).

[0038] Here, the cutting position correction screen will be described with reference to FIG. Area A4 is an area for performing adjustment work on the FD direction side of the cutting position (CD cutting position correction). In the example of Fig. 6, area A4 shows how much to correct the first, second, ... cutting positions from the leading edge, using the leading edge position as the reference. The user inputs the correction value for each cutting position using setting input unit 26. "+" and "-" in the correction value column refer to "the direction opposite to the conveying direction" and "the conveying direction", respectively, when the reference is the leading edge, and refer to "the conveying direction" and "the direction opposite to the conveying direction", respectively, when the reference is the trailing edge. An image of the cutting positions of the first, second, etc. from the leading edge is as shown in Fig. 7. Fig. 7 is an image diagram of the parts where correction values ​​are applied when the leading edge position is the reference. An image of the cutting positions of the first, second, etc. from the trailing edge is as shown in Fig. 8. Fig. 8 is an image diagram of the parts where correction values ​​are applied when the trailing edge position is the reference. Whether to use the leading edge position reference or the trailing edge position reference can be selected from the pull-down menu in the reference column on the cutting position correction screen from the setting input unit 46. Specifically, the cutting positions determined by the cutting parameters input from the cutting parameter setting screen shown in Fig. 4 are 10.0 mm (1st), 220.0 mm (2nd), and 430.0 mm (3rd) when the leading edge in the transport direction is used as the reference. Conversely, the cutting positions are 440.0 mm (1st), 230.0 mm (2nd), and 20.0 mm (3rd) when the trailing edge in the transport direction is used as the reference. In the example of Fig. 6, the CPU 21 applies the correction amount to the cutting position, with + being the direction opposite to the conveying direction, and - being the direction the same as the conveying direction. Note that in the example of Fig. 6, the setting is done in increments of 0.1 mm. That is, in the example of Fig. 6, since the first number is +0.3, the CPU 21 causes the cutting device 30 to perform cutting at a position of 10.3 mm, which is +0.3 mm from the target leading edge position of 10 mm. Area A5 is an area showing an image of the cutting position before and after the correction amount is reflected in the cutting position. The up and down buttons B1 are buttons for changing which cutting position correction value is to be input. When the up button is pressed, the input field moves to the top, and when the down button is pressed, the input field moves to the bottom.

[0039] Next, CPU 21 drives paper transport section 25 to move the paper to cutting device 30 (step S3). Next, the CPU 21 drives the cutting device 30 to cut the paper at the cutting position (step S4).

[0040] Next, CPU 21 causes setting input unit 26 to display a reflection possibility check screen shown in Fig. 9. Based on the user's input on the reflection possibility check screen, CPU 21 determines whether or not the cutting parameters need to be reset (step S5). If resetting is not required (step S5; YES), CPU 21 advances the cutting process to step S6. If resetting is required (step S5; NO), CPU 21 advances the cutting process to step S1.

[0041] Here, the reflection availability check screen shown in FIG. 9 will be described. Pop-up P1 is a pop-up that asks the user whether or not to reset the cutting parameters. If "Yes" is pressed, CPU 21 advances the cutting process to step S1. If "No" is pressed, CPU 21 advances the cutting process to step S6.

[0042] Next, the CPU 21 stores the cutting parameters in the storage unit 24 (step S6).

[0043] Next, the CPU 21 causes the image forming apparatus 10 to feed the next sheet via the communication unit. Next, the CPU 21 acquires information on the paper surface (paper surface information) (step S8). The CPU 21 counts the number of inversions in the paper inverting unit 18 to determine which side of the paper that has reached the cutting device 30 faces as the top or bottom, and acquires the paper surface information.

[0044] Next, the CPU 21 compares the acquired paper surface information with the paper surface information stored in step S6 (step S9). If the acquired paper surface information is the same as the paper surface information stored in step S6 (step S9; YES), the CPU 21 proceeds to cutting processing in step S11. If the acquired paper surface information is the same as the paper surface information stored in step S6 (step S9; NO), the CPU 21 proceeds to cutting processing in step S10.

[0045] Next, the CPU 21 inverts the cutting parameters (step S10). Specifically, if the cutting position is set based on the leading edge position, the cutting position is reset based on the trailing edge position. Conversely, if the cutting position is set based on the trailing edge position, the cutting position is reset based on the leading edge position. If a correction amount is set, the correction amount is also inverted, with the "+" and "-" correction values ​​for each cutting position being inverted.

[0046] Next, the CPU 21 causes the cutting device 30 to cut the paper (step S11). Finally, the CPU 21 checks whether all cutting jobs are completed (step S12). If all cutting jobs are completed (step S12; YES), the CPU 21 ends the cutting process. If all cutting jobs are not completed (step S12; NO), the CPU 21 advances the cutting process to step S7.

[0047] This eliminates the need for the user to consider the direction in which the paper is transported and set the cutting position from either the leading edge position or the trailing edge position. In other words, if the cutting position is set based on either the leading edge position or the trailing edge position, the cutting position will automatically remain the same or be reversed thereafter, eliminating the need for time and effort. In addition, the conveying path or the output tray may change within the cutting device due to the job configuration, causing the paper to be inverted when cut. Even in this case, the user cannot be aware of the inversion, but the cutting position is set automatically, so no problems arise.

[0048] [Outline of image forming system; Part 2] 10 is a configuration diagram of an image forming system 200 according to an embodiment of the present invention. The image forming system 200 includes an image reading device 37 in addition to the components of the image forming system 100. The other components are the same as those of the image forming system 100.

[0049] The image reading device 37 is a device that reads an image on the paper P that has been transported by the paper transport unit 25 and on which the image has been formed by the image forming apparatus 10. In other words, the image reading device 37 can obtain information about which side of the paper P the image is formed on (paper surface information).

[0050] The cutting process in the image forming system 200 differs from the cutting process in the image forming system 100 in the process in step S9. The other steps are the same. As described above, in step S9, in the image forming system 100, the CPU 21 counts the number of inversions in the paper inversion section 18 to determine which side of the paper that has reached the cutting device 30 is facing up or down. In the image forming system 200, the CPU 21 obtains paper surface information of the paper P conveyed from the image reading device 37, and determines which side of the paper that has reached the cutting device 30 is facing as the top side or the bottom side.

[0051] [effect] As described above, the paper processing device 20 has a paper processing section (cutting device 30) that processes the paper in the width direction perpendicular to the transport direction of the transported paper, a setting section (CPU 21) that sets the paper processing position from the leading or trailing end of the paper in the transport direction, and a position reversing section (CPU 21) that reverses the set paper processing position in the transport direction of the paper according to the orientation of the surface of the transported paper. This makes it easier to set the position of the paper processing to be performed on the paper.

[0052] The paper processing device 20 also has a storage unit 24 that stores the paper processing position and paper surface orientation set by the setting unit, and the position reversing unit (CPU 21) compares the paper surface orientation of the paper being transported with the paper surface orientation stored in the storage unit, and reverses the paper processing position set by the setting unit if they differ. This eliminates the need for the user to know the paper surface at the time of cutting. This also makes it easier to set the position of the paper processing to be performed on the paper.

[0053] The paper processing device 20 also has a determination unit (CPU 21) that determines the paper side when the paper reaches the paper processing unit based on the image formation side and the number of times the paper is turned over between the time the image is formed and the time the paper reaches the paper processing position, from a job indicating that paper processing is to be performed, and the position reversal unit (CPU 21) determines the orientation of the paper side to be conveyed to the paper processing unit based on the determination. This eliminates the need for the user to know the paper side at the time of cutting. This also makes it easier to set the position of the paper processing to be performed on the paper.

[0054] Furthermore, the paper-processing device 20 has a reading section (image reading device 37) that reads an image formed on a paper to be processed upstream of the paper-processing section, and the position reversing section (CPU 21) determines the orientation of the paper surface to be transported from the image read by the reading section. This eliminates the need for the user to know the paper surface at the time of cutting. This also simplifies the position setting for the paper processing to be performed on the paper.

[0055] Moreover, the image forming system (image forming system 100, image forming system 200) includes an image forming device 10 including an image forming section 17 that forms an image on paper and a paper inverting section 18 that can invert the paper on which the image has been formed by the image forming section, and the above-mentioned paper processing device 20 that performs paper processing on the paper on which the image has been formed by the image forming device 10. This makes it easier to set the position for the paper processing to be performed on the paper.

[0056] The program also causes the computer of the paper processing device 20, which includes a paper processing section (cutting device 30) that processes the paper in the width direction perpendicular to the transport direction, to function as a setting section (CPU 21) that sets the paper processing position from the leading or trailing edge of the paper in the transport direction, and a position reversing section (CPU 21) that reverses the set paper processing position in the paper transport direction according to the orientation of the paper surface as it is transported. This makes it easier to set the position of the paper processing to be performed on the paper.

[0057] [others] The above-described embodiments are merely examples of the paper processing device and image forming system according to the present invention, and the present invention is not limited to these. The detailed configurations and operations of the components constituting the device may be modified as appropriate without departing from the spirit of the present invention.

[0058] For example, various configurations, such as a relay unit, may be added between the paper processing device and the image forming device.

[0059] Further, the CPU 21 may cause the operation display unit 19 to display a cutting parameter setting screen shown in FIG. 4 and a cutting position correction screen shown in FIG.

[0060] In the above description, the paper reversing path is provided in the image forming apparatus, but it may be provided in the paper processing apparatus.

[0061] In addition, the CPU 21, ROM 22, RAM 23, memory unit 24, and setting input unit 26 of the above-mentioned paper processing device 20 may be shared with the CPU 11, ROM 12, RAM 13, memory unit 14, and operation display unit 19 of the image forming device 10, and this shared configuration may be used to execute processing for setting various parameters related to cutting of the paper processing device 20.

[0062] Furthermore, an external information processing terminal such as a personal computer may be connected to the image forming apparatus 10 or the paper processing apparatus 20, and the information processing terminal may perform the processes performed by the CPU 21 of the paper processing apparatus 20. Furthermore, various cutting parameters may be inputted through an input interface such as a keyboard or mouse provided on the information processing terminal such as a personal computer. In this case, a configuration including an information processing terminal such as a personal computer may be regarded as an image forming system.

[0063] Furthermore, in each of the above embodiments, a paper sheet P is used as the sheet, but the material of the sheet is not limited to paper, and may be sheet-shaped resin or the like. [Explanation of symbols]

[0064] 10 Image forming device 11 CPU 14 Storage section 17 Image forming section 18 Paper reversing section 20 Paper handling device 21 CPU (setting unit, position inversion unit, correction unit, display control unit, judgment unit) 24 Memory section 25 Paper transport section (transport section) 26 Setting input section (display section) 29 Trash box 30 Cutting device (paper processing section) 31~33 FD cutting section (second cutting section) 34 CD cutting section (first cutting section) 35 Transport roller 36 Tip detection section 37 Image reading device (reading unit) 100 Image forming system

Claims

1. a paper processing section that processes the paper in a width direction perpendicular to the conveying direction of the conveyed paper; a setting unit that sets a paper processing position from a leading end or a trailing end of the paper in a transport direction; a position reversing unit that reverses the set paper processing position in the paper transport direction according to the orientation of the paper surface to be transported; A paper processing device having the same.

2. The sheet processing apparatus according to claim 1 , wherein the position reversing section switches the sheet processing position set based on the leading edge or the trailing edge of the sheet, with the leading edge or the trailing edge being the reference, respectively.

3. The paper processing apparatus according to claim 1 , wherein the setting unit sets the paper processing position by a distance from a leading edge or a trailing edge of the paper.

4. The paper processing apparatus according to claim 1 , wherein the setting section is capable of setting a plurality of paper processing positions on the paper.

5. The sheet processing apparatus according to claim 4 , wherein the position reversing section reverses a plurality of set sheet processing positions all at once.

6. a correction unit that corrects the paper processing position set by the setting unit through a user operation, The sheet processing apparatus according to claim 1 , wherein the position reversing unit reverses the corrected sheet processing position.

7. The sheet processing apparatus according to claim 6 , wherein the correction section corrects the sheet processing position based on a distance from the sheet processing position set by the setting section.

8. The sheet processing apparatus according to claim 7 , wherein the correction section corrects the sheet processing position based on a leading edge position or a trailing edge position.

9. A display unit for displaying information; The sheet processing apparatus according to claim 8 , further comprising: a display control unit that causes the display unit to display whether the sheet processing position is corrected based on the leading edge position or the trailing edge position when the correction unit performs correction.

10. When the paper is processed multiple times along the width direction perpendicular to the conveying direction, the correction value by the correction unit can be set for each sheet processing position, The sheet processing apparatus according to claim 6 , wherein the inversion of the correction values ​​for the sheet processing position performed by the position inversion unit is performed by inverting an application order of the correction values.

11. The sheet processing apparatus according to claim 1 , wherein the sheet processing section is a first cutting section that cuts the sheet in a width direction perpendicular to a conveying direction of the conveyed sheet.

12. a second cutting unit capable of cutting the conveyed paper along the conveyance direction; A setting unit sets a cutting position based on one end perpendicular to the conveying direction, 12. The paper processing device according to claim 11, wherein when the position reversing unit reverses the cutting position in accordance with the orientation of the surface of the paper being transported, the position reversing unit does not reverse a cutting position set based on one end perpendicular to the transport direction.

13. a storage unit for storing the paper processing position and the paper surface orientation set by the setting unit; The paper processing device according to claim 1 , wherein the position reversing unit compares an orientation of the paper surface of the transported paper with an orientation of the paper surface stored in a storage unit, and reverses the paper processing position set by the setting unit if they differ.

14. a determining unit that determines the surface of the paper when the paper reaches the paper processing unit from a job indicating that the paper is to be processed, based on the image forming surface and the number of times the paper is turned over between the time when the image is formed and the time when the paper reaches the paper processing position; The sheet processing apparatus according to claim 1 , wherein the position reversing section determines a direction of a surface of the sheet to be conveyed to the sheet processing section based on the determination.

15. a reading unit that reads an image formed on a sheet to be processed, the reading unit being located upstream of the sheet processing unit; The sheet processing apparatus according to claim 1 , wherein the position reversing section determines a direction of the surface of the sheet to be conveyed based on the image read by the reading section.

16. an image forming unit that forms an image on a sheet; an image forming apparatus including a sheet reversing unit capable of reversing a sheet on which an image is formed by the image forming unit; a sheet processing device according to claim 1, which processes the sheet on which the image is formed by the image forming device; An image forming system comprising:

17. A computer of a paper processing device having a paper processing section that processes paper along a width direction perpendicular to a conveying direction of the conveyed paper, a setting unit that sets a paper processing position from a leading end or a trailing end of the paper in a conveyance direction; a position reversing unit that reverses the set paper processing position in the paper transport direction according to the orientation of the paper surface to be transported; A program that functions as a

Images