Sheet processing device, sheet processing method, and program

Abstract

To provide a sheet processing device capable of preventing a user to perform a useless operation related to three-fold setting.SOLUTION: A sheet processing device displays a screen for setting processing for folding a sheet into three so as to select holding means holding a sheet capable of being folded into three, when a sheet held by the selected holding means cannot be folded into three.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a sheet processing apparatus, a sheet processing method, and a program. [Background technology]

[0002] A function called C-fold is provided as one of the finishing functions that performs various processes on output paper (sheets) after printing. A C-fold is also called an inner triple fold, and is a folding method that takes a sheet of paper with a short side of X and a long side of Y, makes a valley fold along one of the lines that divide the long side Y into thirds, and then makes another valley fold along the other line that divides the long side Y into thirds, resulting in a U-shaped output.

[0003] Patent Document 1 describes a configuration in which, when a user instructs C-fold finishing, automatic selection of output paper is cancelled and the user selects output paper that can be C-folded. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-168599 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0005] Incidentally, when performing a C-fold, detailed settings relating to the C-fold, for example, the length of each side when folded in C (fold width) may be set.

[0006] However, in a configuration in which the user simply selects a sheet that can be folded in a C-shape, as in Patent Document 1, the selected sheet may not be able to achieve the set folding width properly. In such a case, the device will halt processing and prompt the user to set the folding width again. This means double work for the user, which is wasteful.

[0007] Therefore, an object of the present disclosure is to prevent the user from performing unnecessary operations related to tri-fold settings. [Means for solving the problem]

[0008] A sheet processing apparatus according to one embodiment of the present disclosure is a sheet processing apparatus that performs a third fold on a sheet, and has a selection means for selecting one holding means from a plurality of holding means for holding the sheet that will perform the third fold, and a display control means for displaying a screen for setting processing for folding the sheet into thirds, wherein, when the sheet held in the selected holding means cannot be folded into thirds and the plurality of holding means includes a holding means that holds a sheet that can be folded into thirds, the display control means displays the holding means that holds the sheet that can be folded into thirds on the screen for setting processing so that it can be selected. Effect of the Invention

[0009] According to the present disclosure, it is possible to prevent the user from performing unnecessary operations related to the tri-fold setting. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a block diagram showing an example of a hardware configuration of an image forming apparatus. [Diagram 2] FIG. 2 is a diagram illustrating a module configuration of a program. [Diagram 3] FIG. 2 is a schematic cross-sectional view of an MFP. [Figure 4] FIG. 13 is a diagram showing an example of constraints and setting values ​​when performing a C-fold. [Diagram 5] FIG. 13 is a diagram showing an example of a copy screen. [Figure 6] FIG. 13 is a diagram showing an example of a finishing setting screen. [Figure 7] FIG. 13 is a diagram showing an example of a C-fold setting screen. [Figure 8] FIG. 13 is a diagram showing an example of a folding width setting screen. [Figure 9] FIG. 13 is a diagram showing an example of a paper selection screen. [Figure 10]10 is a flowchart showing a flow of processing up to execution of a copy job. [Figure 11] FIG. 11 is a diagram illustrating an example of copy setting values. [Figure 12] FIG. 13 illustrates an example of an error screen. [Figure 13] 10 is a flowchart showing a detailed flow of a paper setting process. [Figure 14] 10 is a flowchart showing a detailed flow of a finishing setting process. [Figure 15] 10 is a flowchart showing a detailed flow of a folding width setting process. [Figure 16] FIG. 13 is a diagram showing an example of a folding width setting screen including a warning message. [Figure 17] 10 is a flowchart showing a detailed flow of a folding width setting process. [Figure 18] 10 is a flowchart showing a detailed flow of a folding width setting process. [Figure 19] 10 is a flowchart showing a detailed flow of a folding width setting process. [Figure 20] FIG. 13 is a diagram showing an example of a folding width setting screen. [Figure 21] 10 is a flowchart showing a detailed flow of a folding width setting process. [Figure 22] FIG. 13 is a diagram showing an example of a confirmation screen. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the drawings. Note that the following embodiments do not limit the invention according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. Note that each process (step) in the flow chart is denoted with an "S" at the beginning.

[0012] <<Embodiment 1>> 1 is a block diagram showing a schematic configuration example of an MFP (Multifunction Peripheral) 100 as a sheet processing apparatus according to this embodiment. The MFP 100 includes a control unit 110, a scanner 130, a printer 140, and an operation unit 150.

[0013] The control unit 110 has a CPU 111, a RAM 112, a ROM 113, a solid state drive (SSD) 114, and an internal bus 120 connecting these. In this embodiment, the SSD 114 is used as the storage device, but the storage device is not limited to this as long as it has a large capacity storage area, and may be, for example, a hard disk drive (HDD). Furthermore, a network I / F 115, a device I / F 116, an operation unit I / F 117, and an image processing unit 118 inside the control unit 110 are connected to the internal bus 120.

[0014] The scanner 130 generates image data by reading an original. The printer 140 prints an image on a sheet based on the image data for printing. The network I / F 115 is connected to a computer device (PC) 160 via a LAN and transmits and receives image data to and from the PC 160. This allows a user to use the MFP 100 by remote control from the PC 160. The device I / F 116 is an interface that connects to the scanner 130 and the printer 140, and performs synchronous / asynchronous conversion processing of image data. When performing conversion processing, the device I / F 116 outputs image data generated by the scanner 130 to the internal bus 120. The device I / F 116 also acquires image data for printing through the internal bus 120 and outputs it to the printer 140. A finisher 170, which is a paper discharge unit, is connected to the printer 140, and the CPU 111 instructs processing such as C-folding through the device I / F 116. The operation unit I / F 117 is an interface that connects to the operation unit 150. The operation unit I / F 117 outputs input data regarding settings and execution based on user operations on the operation unit 150 to the internal bus 120. In addition, the operation unit I / F 117 obtains display data to be displayed on the operation unit 150 as a display unit from the internal bus 120 and displays the display data on the operation unit 150.

[0015] The image processing unit 118 executes various image conversion processes for the image data. The ROM 113 stores a program 200, which will be described later, for operating the MFP 100. The SSD 114 stores image data related to various jobs, etc. The RAM 112 temporarily stores image data processed by the image processing unit 118, job setting values, etc.

[0016] CPU 111 reads out program 200 stored in ROM 113 into RAM 112 and executes it. Thus, CPU 111 functions as a control unit that controls a plurality of functions of MFP 100, such as a copy function and a box function. CPU 111 executes image forming processes such as a scan job, a print job, and a copy job, based on a user operation on operation unit 150 or PC 160. At this time, CPU 111 appropriately stores image data related to the job in SSD 114.

[0017] FIG. 2 is a diagram for explaining the module configuration of the program 200 executed by the CPU 111. The program 200 has a job processing module 201, an image data management module 202, a print module 203, a scan module 204, and an operation unit processing module 205. The program 200 is stored in the ROM 113, and the CPU 111 executes the processing of each module in FIG. 2 by reading the program 200 from the ROM 113 and executing it. Note that, in this embodiment, the program 200 is stored in the ROM 113, but this is not limited to the case as long as the storage device has a storage capacity capable of storing the program 200. For example, a dedicated area for the program 200 may be assigned to the SSD 114, and the program 200 may be stored in the dedicated area.

[0018] When the CPU 111 executes a program of the image data management module 202, the CPU 111 stores image data related to the job in the SSD 114 and reads it out from the SSD 114. When the CPU 111 executes a program of the print module 203, the CPU 111 executes a print process of the image data related to the job. When the CPU 111 executes a program of the scan module 204, the CPU 111 executes a scan process of an original with the scanner 130 to generate image data related to the job. When the CPU 111 executes a program of the job processing module 201, the CPU 111 accepts and executes a job from the operation unit 150 or the PC 160.

[0019] For example, when a print job is accepted from PC 160, CPU 111, functioning as job processing module 201, causes image data management module 202 to store image data associated with the accepted print job in SSD 114. As a result, image data related to the job is input from PC 160 to SSD 114. Next, CPU 111, functioning as job processing module 201, causes print module 203 to execute print processing of the image data related to the job input to SSD 114.

[0020] Furthermore, when a copy job is accepted from the operation unit 150, the CPU 111, as the job processing module 201, first causes the scan module 204 to execute scanner processing of the document related to the accepted copy job. As a result, image data related to the job is generated by the scanner 130. Next, the CPU 111, as the job processing module 201, causes the image data management module 202 to store the image data related to the job generated by the scanner 130 in the SSD 114. As a result, the image data related to the job is input from the scanner 130 to the SSD 114. Finally, the CPU 111, as the job processing module 201, causes the print module 203 to execute print processing of the image data related to the job input to the SSD 114.

[0021] Also, the print module 203 instructs the finisher 170, which is a folding means connected to the printer 140, to perform C-folding processing.

[0022] An operation unit processing module 205 acquires input from a user and controls display on the operation unit screen when a job is received from the operation unit 150 .

[0023] 3 is a schematic cross-sectional view of the MFP 100 in this embodiment. The MFP 100 is composed of a scanner 130, a printer 140, and a finisher 170. The scanner 130 is composed of a reader 301 and a document feeder (DF) 302, and is used when optically reading an original. The reader 301 irradiates light from a light source 304 onto an original placed on a transparent platen 303. The light reflected by the original is guided to a CCD 307 by a reflector 305 and a lens 306. The light reflected by the original is then converted into a digital signal by the CCD 307, subjected to desired image processing, and converted into print image data. The print image data is stored in the SSD 114.

[0024] The DF302 has an original setting section 308 on which an original is placed. An original presence / absence sensor 309 provided in the original setting section 308 detects an original set in the original setting section 308. When the scanner 130 receives a reading start instruction from a user, the original feed roller 310 and the conveyor belt 311 rotate to feed the original set in the original setting section 308. The fed original is conveyed to a predetermined position on the original table 303. Then, the image of the original is read by the above-mentioned method and stored in the SSD 114. When the reading is completed, the conveyor belt 311 rotates again to convey the original. Then, the original is discharged to the original discharge tray 313 via the conveyor roller 312. When there are multiple originals, the next original is fed by the original feed roller 310 at the same time as the original is conveyed from the original table 303, and the reading of the next original is continuously performed.

[0025] The printer 140 includes an image forming means therein, and is used when printing print image data stored in the SSD 114. Photoconductors 314 of the respective colors, yellow, magenta, cyan, and black, are exposed based on the print image data, and an electrostatic latent image is formed on the photoconductor 314. Then, toner development is performed using toner supplied from a toner cartridge 315, and the visualized image is primarily transferred to an intermediate transfer belt 316. The intermediate transfer belt 316 rotates in a clockwise direction, and an image is transferred from the intermediate transfer belt 316 at a secondary transfer position 320 onto paper fed through a paper feed path 319 from a paper cassette 317 or a manual feed tray 318, which is a sheet loading means (paper feed stage).

[0026] The toner on the paper with the transferred image is fixed by pressure and heat in the fixing unit 321, and the paper is transported along the paper discharge path and then discharged from the center tray paper discharge outlet 322 or the side tray paper discharge outlet 324. The side tray paper discharge outlet 324 is an outlet that can be used only when the finisher 170 is not installed. When the paper on which the image has been formed is to be post-processed by the finisher 170, the paper is switched back at the center tray paper discharge outlet 322 and transported to the paper discharge outlet 323 to the finisher 170. Flappers 325 and 326 switch the transport path according to these paper discharge outlets. In the case of double-sided printing, the paper passes through the fixing unit 321 and then passes through the double-sided printing paper transport path 327 and is transported again to the secondary transfer position 320.

[0027] Paper cassette 317 and manual feed tray 318 are provided with paper size sensors. The paper size sensors can automatically detect the size of the paper set. Furthermore, by storing the paper size set by the user in memory, it is possible to handle paper sizes that cannot be automatically detected.

[0028] Each cassette of paper cassette 317 is provided with an open / close sensor. The open / close sensor can detect whether the paper cassette is opened or closed by the user. Furthermore, paper cassette 317 and manual feed tray 318 are provided with a paper remaining sensor. The paper remaining sensor can automatically detect the remaining amount of paper set therein.

[0029] The finisher 170 performs post-processing on the printed paper according to the function specified by the user. The printed paper transported from the paper discharge port 323 to the finisher 170 is transported from the finisher paper feed port 328 into the finisher 170. The paper that passes through the finisher paper feed port 328 is transported by a flapper 329 to a transport path to either the paper discharge destination 330 or the paper discharge destination 331. When the paper is discharged to the paper discharge destination 330, the paper is discharged without being subjected to post-processing. When the paper is discharged to the paper discharge destination 331, a staple process (stapling) using a stapler 333 or a shift process to shift the paper discharge position is performed according to the settings.

[0030] The finisher 170 can also perform C-folding on the paper. When performing C-folding, the paper fed from the finisher paper feed port 328 is transported to the switchback section 337. The paper is then transported to the stacking section 335, where it becomes a stack of paper with the number of overlapping folds. The finisher 170 then performs a first fold on the stack of paper with the folding rollers 336, and returns the stack of paper to the stacking section 335. The finisher 170 then returns the stack of paper to the transport path 338, after which it performs a second fold with the folding rollers 336, and transports it to the transport path 340. As a result, the printed paper is discharged to the paper discharge destination 332 in a C-folded shape.

[0031] (C-fold constraints and settings) 4(a) to 4(c) are diagrams showing examples of constraints and setting values ​​when the sheet processing apparatus performs C-folding. Fig. 4(a) shows the constraints when the sheet processing apparatus performs C-folding.

[0032] As shown in FIG. 4(a), when the length of each side of the paper when folded in C is defined as side A, side B, and side C, the margin d, which is the length from the boundary F1 between sides A and B to the end point of side C, must be greater than a predetermined positive value. The margin d is the size of the portion that does not overlap side B and C when folded at the boundary F2 between sides B and C and overlapped with side B. Also, due to the structural constraints of the finisher 170, there is a limit to the lengths that sides A, B, and C can take. For example, the length of side A (the length from one end PS of the paper to the first folding position (F1 in FIG. 4(a))) is a. The length of side B (the length from the first folding position (F1 in FIG. 4(a)) to the second folding position (F2 in FIG. 4(a))) is b. The length of side C (the length from the second folding position (F2 in FIG. 4(a)) to the other end of the paper) is c. The length from the first fold position (F1 in Fig. 4(a)) to the other end point of side C when folded in third is defined as d. In this case, there is a constraint that the following formula (1) must be satisfied. Note that both measurements are in mm.

[0033] a ≧ 68.0 85.0≦b≦147.0 c ≧ 85.0 (1) a+b≦285.0 d = b c ≧ 3

[0034] (Paper size that the sheet processing device can fold in C-fold) FIG. 4B is a diagram showing an example of paper sizes that can be C-folded by the sheet processing apparatus. That is, FIG. 4B can be said to show the constraints when the sheet processing apparatus performs C-folding. The sheet processing apparatus holds C-foldable paper size data showing a list of paper sizes that can be C-folded. For example, as shown in FIG. 4B, C-foldable paper size data 410 holds paper size 411, total long side X size 412, A side size 413, B side size 414, and C side size 415 in association with each other. Paper size 411 includes, for example, A4-R, LTR-R, B4, LGL, and A3. In the C-foldable paper size data 410, it is assumed that the lengths of the A, B, and C sides are set to lengths that divide the total long side X of each paper size into approximately three equal parts within a range that satisfies the constraints shown in FIG. 4A.

[0035] (Settings for each side when folding) Fig. 4(c) is a diagram showing an example of the settable ranges for sides A, B, and C when performing C-folding on paper of each paper size within the constraints shown in Fig. 4(a). Note that Fig. 4(c) shows the size ranges (upper and lower limits) of sides A 423, B 424, and C 425 for each of paper sizes 421 A4-R, LTR-R, B4, LGL, and A3.

[0036] It is necessary to determine the folding position when performing C-folding so that the size of each of sides A, B, and C is within a settable range and the sum of the lengths of sides A, B, and C is the total long side length X. As shown in Fig. 4(b) and Fig. 4(c), the length of each side when folding into three equal parts C, and the upper and lower limits of the lengths of each side are set for each paper size. That is, for side B, a value corresponding to the upper limit of side A and a value corresponding to the lower limit of side A are set. For side C, as with side B, a value corresponding to the upper limit of side A and a value corresponding to the lower limit of side A are set.

[0037] The sheet processing apparatus holds setting range data for each side when folding in a C shape, which indicates the range of each side that can be set when folding in a C shape. For example, as shown in Fig. 4C, setting range data 420 for each side when folding in a C shape holds the following data in association with each other. That is, setting range data 420 for each side when folding in a C shape holds paper size 421, size 422 of total long side length X, range 423 from the lower limit value to the upper limit value of side A, range 424 from the lower limit value to the upper limit value of side B, and range 425 from the lower limit value to the upper limit value of side C in association with each other.

[0038] (Copy screen) FIG. 5 is a diagram showing an example of a copy screen. The copy screen 500 is displayed on the operation unit 150. The user can operate the copy screen 500 displayed on the operation unit 150 to set a copy job and cause the MFP 100 to execute the copy job. As shown in FIG. 5, various buttons are arranged on the copy screen 500 for the user to set the job. Furthermore, the copy screen 500 displays details of the currently set settings related to copying. For example, a "paper selection" button 503 is a button for setting the size and type of paper to be used in copying. When the user presses the "paper selection" button 503, a screen for selecting paper opens, and the user can select the paper to be used on the paper selection screen. The size of the selected paper is displayed above the "paper selection" button 503. Similarly, when the user presses the "finishing" button 505, a finishing setting screen opens, and the user can perform finishing settings such as sorting and stapling on the finishing setting screen. The set finishing contents are displayed in abbreviated form within the "finishing" button 505. Similarly, when the user presses the other buttons, a setting screen corresponding to the pressed button opens, and the user can set the settings on the setting screen. FIG. 5(a) shows the initial state of the copy screen. At this time, the MFP 100 is in the initial state, and the setting contents displayed on the copy screen 500 are the initial values. Meanwhile, FIG. 5(b) shows the copy screen after a predetermined setting has been performed. Also, the copy screen 500 is divided into an application area 510 whose display changes depending on the operation state of the application, and other areas. For example, the above-mentioned paper selection screen and finishing setting screen are displayed in the application area 510. Meanwhile, in the area outside the application area 510, which is the other area, buttons arranged at predetermined positions are always displayed regardless of the operation state of the application. For example, in the area outside the application area 510, a numeric keypad button group 504 for inputting numerical values, a "start" button 501 for starting a job, a "stop" button 502 for stopping a job, and the like are arranged.

[0039] When the copy screen 500 is displayed on the operation unit 150, if the user presses the "Finishing" button 505, a finishing setting screen is opened.

[0040] (Finishing settings screen) FIG. 6 is a diagram showing an example of a finishing setting screen. The finishing setting screen 600 is displayed in the same area as the application area 510 on the operation unit 150. The finishing setting screen 600 is a screen for setting the type of finishing. The finishing setting screen 600 displays buttons 601 to 605 and 607 to 609 for setting finishing such as sorting and stapling of output paper. That is, the finishing setting screen 600 displays a "sort (per copy)" button 601, a "group (per page)" button 602, a "stapling + sorting" button 603, a "stapling + group" button 604, a "shift" button 605, and a numerical value input area 606. The finishing setting screen 600 displays a "specify paper ejection side" button 607, a "punch hole" button 608, a "C-fold" button 609, an "OK" button 610, and a "cancel setting" button 611. The finishing setting screen 600 also displays the numerical value input area 606. Pressing a button changes the color of the button, thereby entering a selected state, and pressing an "OK" button 610 in this state allows the sheet processing to be set.

[0041] The "Sort (per copy)" button 601 is a setting for arranging the page order for each copy, and the "Group (per page)" button 602 is a setting for grouping by page. The "Staple + Sort" button 603 is a setting that adds stapling to sorting, and the "Staple + Group" button 604 is a setting that adds stapling to grouping. The settings corresponding to these buttons 601 to 604 are mutually exclusive and cannot be set simultaneously.

[0042] There are cases where a combination is not possible, such as stapling and C-folding. Therefore, when the "stapling + sort" button 603 or the "stapling + group" button 604 is selected, the "C-fold" button 609 becomes lighter in color and cannot be selected. If the "C-fold" button 609 is selected first, the "stapling + sort" button 603 and the "stapling + group" button 604 cannot be selected. In this way, when a combination of settings is not possible, the buttons become unselectable.

[0043] The "Shift" button 605 is a setting for shifting by stack, and shifting can be performed for a specified number of copies by inputting a value in a value input area 606. Pressing the "Specify ejection side" button 607 transitions to a screen where face-up or face-down ejection can be specified. The "Punch hole" button 608 is a setting for punching holes in the paper. Pressing the C-fold button 609 transitions to a C-fold setting screen for making detailed settings for C-folding, which will be described later.

[0044] The user can operate these buttons to configure the finishing settings. When the user presses the "OK" button 610, the contents set on the finishing settings screen 600 are finalized, and the finishing settings screen 600 is closed. Then, the copy screen 500 is displayed. When the user presses the "Cancel Settings" button 611, the contents set on the finishing settings screen 600 are discarded, and the finishing settings screen 600 is closed.

[0045] When the finishing setting screen 600 is displayed, if the user presses the "C-fold" button 609, a C-fold setting screen is opened.

[0046] (C-fold setting screen) FIG. 7 is a diagram showing an example of a C-fold setting screen. FIG. 7(a) shows the initial state of the C-fold setting screen. A "-" (minus) and "+" (plus) button 702 are displayed on the C-fold setting screen 700. The user can set the number of overlapping folds by operating the "-" and "+" buttons 702. The set number of overlapping folds is displayed in a numerical input area 701. In addition, the user can set the printing start side (the printed side of the first page) and the folding pattern when performing a C-fold by operating buttons 709 to 712.

[0047] In addition, the user can set whether the folding width is automatically determined or manually specified by operating the "Auto" button 706 or the "Specify" button 707. When the user presses the "Auto" button 706, the folding width when performing C-folding is automatically determined based on the C-foldable paper size data 410 based on the paper size, and the folding width is a three-part C-fold. When the user presses the "Specify" button 707, a folding width setting screen for specifying and setting the folding width is opened, and the user can specify the folding width on the folding width setting screen. The folding width setting screen will be described in detail later. The "Auto" button 706 and the "Specify" button 707 are mutually exclusive, and when the user presses one button, the other button is not pressed. In FIG. 7(a), the "Auto" button 706 is in a pressed state.

[0048] When the user presses the "Cancel Settings" button 703, the C-fold settings are cancelled, and the C-fold settings screen 700 is closed. Then, the finishing settings screen 600 is displayed. When the user presses the "Back" button 704, the contents set on the C-fold settings screen 700 are discarded, and the C-fold settings screen 700 is closed. When the user presses the "OK" button 705, the contents set on the C-fold settings screen 700 are finalised, and the C-fold settings screen 700 is closed.

[0049] When the user presses the "Specify" button 707, the "OK" button 705 is hidden and a "Next" button 708 is displayed, as shown in Fig. 7(b). When the user presses the "Next" button 708 here, the paper feed tray in which paper that can be folded in C-shape is set is automatically selected from the paper cassette 317 or the manual feed tray 318. Then, the folding width setting screen is opened.

[0050] (Fold width setting screen) 8A and 8B are diagrams showing examples of a folding width setting screen, in which Fig. 8A shows a case where there is a paper feed tray in which paper that can be folded into a C shape is set, and Fig. 8B shows a case where there is no paper feed tray in which paper that can be folded into a C shape is set.

[0051] The folding width setting screen 800 is a screen for setting processing for folding a sheet in three, and displays information 801 about the selected paper feed tray. The information 801 about the selected paper feed tray displays the position of the paper feed tray ("Manual Feed" in FIG. 8A), the size of the paper set in the paper feed tray ("A4R" in FIG. 8A), and the amount of paper remaining in the paper feed tray. The folding width setting screen 800 also displays a "Change" button 802. The user can change the selected paper feed tray by pressing the "Change" button 802. The folding width setting screen 800 also displays a "-" button 804 and a "+" button 805. The user can change the length of side A when the paper is folded in C by operating the "-" button 804 and "+" button 805 on the folding width setting screen 800.

[0052] Area 810 of folding width setting screen 800 displays a schematic diagram showing which side of the paper will be side A. Even if any of buttons 709-712, which are associated with the print start side and the folding pattern, is selected on C-fold setting screen 700, the side that will be the outside of the C-fold shown below will be side A. That is, in patterns 1 and 3, the left side will be side A, and in patterns 2 and 4, the right side will be side A.

[0053] The folding width setting screen 800 displays the same values ​​as the setting range data 420 for each side at the time of C-folding shown in FIG. 4C as the settable upper and lower limits of the A side in the folding width settable range 803. The user can set the folding width while referring to the displayed upper and lower limits. When the user presses the "-" button 804, the set length of the A side is subtracted by a predetermined amount (1 mm in this embodiment). However, if the set length of the A side is the lower limit, it is not subtracted any more. When the user presses the "+" button 805, the set length of the A side is added by a predetermined amount (1 mm in this embodiment). However, if the set length of the A side is the upper limit, it is not added any more. When the user presses the "+" button 805 when the set length of the A side is 0 (initial value), the length of the A side is set to the lower limit (68 mm in the case of FIG. 8A). The set length of the A side is displayed in the folding width setting value 806, which is a numerical input area.

[0054] When the user presses the "Cancel setting" button 807, the C-fold width setting is canceled, and the folding width setting screen 800 is closed. Then, the finishing setting screen 600 is displayed. When the user presses the "Back" button 808, the contents set on the folding width setting screen 800 are discarded, and the folding width setting screen 800 is closed. Then, the C-fold setting screen 700 is displayed. When the user presses the "OK" button 809, the contents set on the folding width setting screen 800 are confirmed, and the folding width setting screen 800 is closed. Then, the finishing setting screen 600 is displayed.

[0055] When the "Next" button 708 on the C-fold setting screen 700 is pressed, if the paper set in the paper feed tray selected before pressing the "Next" button 708 is paper that can be folded into a C-fold, the selected paper feed tray is not changed. On the other hand, when the "Next" button 708 on the C-fold setting screen 700 is pressed, if the paper set in the paper cassette 317 and the manual feed tray 318 cannot be folded into a C-fold, a message indicating that there is no paper that can be folded into a C-fold is displayed on the folding width setting screen 800. The display contents of the folding width setting screen 800 at this time are shown in FIG. 8(b). In FIG. 8(b), buttons 803 to 805 for changing the folding width setting and a folding width setting value 806, which is a numerical input area, are not displayed, and a message 811 indicating that there is no paper that can be folded into a C-fold is displayed. Furthermore, the "OK" button 809 is not displayed and cannot be pressed, and the user cannot confirm the setting contents. In this case, the user must use the "Cancel Setting" button 807 or the "Back" button 808 to redo the operation, or replace the paper set in the paper cassette 317 or the manual feed tray 318 with paper that can be folded into a C-shape.

[0056] When the folding width setting screen 800 is displayed, if the user presses the "change" button 802, a paper selection screen is opened.

[0057] (Paper selection screen) Fig. 9 shows an example of a paper selection screen. Fig. 9(a) shows an example of a paper selection screen opened by pressing the "Paper Selection" button. Fig. 9(b) shows an example of a paper selection screen opened by pressing the "Change" button 802.

[0058] The paper selection screen 900 displays a button group 901 for selecting each cassette of the paper cassette 317 and the manual feed tray 318. For example, a button 904 in the button group 901 is a button for selecting the first cassette of the paper cassette 317. In addition, among the button group 901, a button corresponding to a paper feed stage in which paper that cannot be folded in C is set is displayed in a shaded manner and cannot be pressed. For example, A4 paper that cannot be folded in C is set in the paper cassette corresponding to the button 904. Therefore, the button 904 cannot be pressed. When a user presses a button among the button group 901 that can be pressed, the pressed button becomes selected and the corresponding paper feed stage is selected. For example, in the paper selection screen 900 shown in FIG. 9B, a button 905 is selected, indicating that the corresponding paper cassette (the second cassette) is selected. When a user presses the "OK" button 902, the contents set in the paper selection screen 900 are confirmed, and the paper selection screen 900 is closed. Then, the folding width setting screen 800 is displayed.

[0059] When the user presses the "paper selection" button 503 while the copy screen 500 is displayed, for example, a paper selection screen 900 shown in Fig. 9(a) is opened. The paper selection screen 900 shown in Fig. 9(a) shows the paper selection screen in an initial state where C-folding is not set, and displays an "automatic" button 903. When the user presses the "automatic" button 903, automatic paper selection is set. When automatic paper selection is set, the print module 203 automatically selects a paper feed tray based on the document size and magnification.

[0060] The operation of the above screens will be explained using a flowchart.

[0061] (Processing before executing a copy job) 10 is a flowchart showing the flow of processing from when the MFP 100 starts an application to when it executes a copy job. The processing flows shown in FIG. 10 and other flowcharts are written as programs and are held in the ROM 113 or SSD 114 as part of the operation unit processing module 205. The CPU 111 reads these programs and executes the contents of each step according to each processing flow.

[0062] In S1001, the CPU 111 initializes the setting value of each item to be set for copying. That is, the CPU 111 sets the setting value of copying held in the RAM 112 to an initial value. As the initial value of the setting value, a value embedded in the program of the operation unit processing module 205 or a value held in the SSD 114 may be used.

[0063] (Copy setting value) Fig. 11 is a diagram showing an example of copy setting values. The copy setting values ​​are held, for example, in the RAM 112. As shown in Fig. 11, a copy setting value 1100 is set to an initial value.

[0064] As the copy setting value 1100, initial values ​​are set for each item such as color mode, magnification, paper feed tray, number of copies, finishing, number of C-fold sheets, C-fold width, and C-fold pattern. That is, the initial values ​​are set to "black and white" for color mode, "100%" for magnification, "automatic" for paper feed tray, "1 copy" for number of copies, "sort" for finishing, "1 sheet" for C-fold sheets, "automatic" for C-fold width, and "1" for C-fold pattern.

[0065] In S1002, CPU 111 displays copy screen 500 on operation unit 150. At the time of this step, the values ​​of each setting item for copy are the initial values, so that the copy screen is displayed in the initial state as shown in FIG.

[0066] In S1003, the CPU 111 accepts a user operation on the copy screen 500. User operations accepted in this step include pressing various buttons displayed on the copy screen 500, placing an original on the original setting unit 308, placing paper on the paper cassette 317 or the manual feed tray 318, and the like.

[0067] In S1004, CPU 111 branches the process depending on the type of operation accepted in S1003. Specifically, if the "paper selection" button is pressed, the process proceeds to S1005; if the "finishing" button is pressed, the process proceeds to S1007; if the "start" button is pressed, the process proceeds to S1008; and if any other operation is accepted, the process proceeds to S1011. The other operations are operations other than pressing "paper selection" button 503, "finishing" button 505, and "start" button 501.

[0068] In S1005, CPU 111 performs paper setting processing. Details of the paper setting processing will be described later with reference to the drawings. In S1006, CPU 111 updates the display of copy screen 500 based on the contents of copy setting value 1100. When the processing of S1006 ends, the processing proceeds to S1003.

[0069] In S1007, the CPU 111 performs a finishing setting process. The details of the finishing setting process will be described later with reference to the drawings. When the process of S1007 ends, the process proceeds to S1006.

[0070] In S1008, CPU 111 determines whether the setting value set in copy setting value 1100 and the paper are consistent. For example, when C-folding is set as the finishing, if the paper set in the selected paper feed tray can be C-folded, it is determined that the paper is consistent, and if not, it is determined that the paper is not consistent. Furthermore, if the folding width of the C-fold is within the range indicated by the setting range data 420 for each side at the time of C-folding corresponding to the paper size set in the selected paper feed tray, it is determined that the paper is consistent, and if not, it is determined that the paper is not consistent. If the result of the determination is that the setting set in copy setting value 1100 is consistent (YES in S1008), the process proceeds to S1009. On the other hand, if the setting set in copy setting value 1100 is not consistent (NO in S1008), the process proceeds to S1010.

[0071] In S1009, the CPU 111 executes a copy job based on the settings of the copy setting values ​​1100. That is, the CPU 111 inputs a job to the job processing module 201. If a C-fold and a folding width for the C-fold are set in the copy setting values ​​1100, the print module 203 prints an image and then folds the paper into a C-fold at the specified folding width. When the process of S1009 ends, the process shown in FIG. 10 ends.

[0072] In S1010, CPU 111 displays on operation unit 150 an error screen indicating that the job cannot be executed.

[0073] (Error screen) Fig. 12 shows an example of an error screen. Fig. 12(a) shows an error screen when an inappropriate paper is selected. The error screen 1200 displays an "OK" button 1201 and a message 1202 saying "A paper size that cannot be used with the currently set folding type has been selected. Please check the paper." In other words, the error screen 1200 can be said to display a message prompting the user to change the selected paper. When the user presses the "OK" button 1201, the process of S1010 ends and the process proceeds to S1006.

[0074] In S1011, the CPU 111 executes a subroutine, which is other processing. The subroutine executes processing according to the user operation accepted in S1003. Details of the subroutine processing are omitted. When the processing of S1011 ends, the processing proceeds to S1006.

[0075] (Paper setting process) FIG. 13 is a flowchart showing the detailed flow of the paper setting process (S1005 and S1520 described below).

[0076] In step S1301 , the CPU 111 displays the paper selection screen 900 on the operation unit 150 .

[0077] In S1302, CPU 111 determines whether or not "Auto" button 903 is displayed. If the paper setting process shown in Fig. 13 is called by pressing "Paper Selection" button 503 on copy screen 500, it is determined that "Auto" button 903 is to be displayed (S1302, "Display"), and the process proceeds to S1303. On the other hand, if the paper setting process shown in Fig. 13 is called by pressing "Change" button 802 on folding width setting screen 800, it is determined that "Auto" button 903 is not to be displayed (S1302, "Hide"), and the process proceeds to S1304.

[0078] In S1303, the CPU 111 displays the "Auto" button 903 on the paper selection screen 900. In S1304, the CPU 111 makes the "Auto" button 903 on the paper selection screen 900 non-displayable.

[0079] Steps S1305 to S1308 are loop processes for processing each button for selecting a paper feed tray (each button of the button group 901).

[0080] In S1306, the validity of the button to be processed is determined. If the paper set in the paper feed tray corresponding to the button to be processed matches the copy setting value 1100, the button to be processed is determined to be valid. If it is determined to be valid ("valid" in S1306), the process proceeds to S1308. On the other hand, if the paper set in the paper feed tray corresponding to the button to be processed does not match the copy setting value 1100, the button to be processed is determined to be invalid. If it is determined to be invalid ("invalid" in S1306), the process proceeds to S1307. For example, if C-fold is set as the finishing setting, and the paper set in the paper feed tray corresponding to the button to be processed is paper indicated in the C-foldable paper size data 410, the button to be processed is determined to be valid. On the other hand, if C-fold is set as the finishing setting, and the paper set in the paper feed tray corresponding to the button to be processed is not paper indicated in the C-foldable paper size data 410, the button to be processed is determined to be invalid.

[0081] In S1307, the CPU 111 invalidates the button to be processed. Specifically, the CPU 111 displays the button to be processed in a shaded manner, making it impossible to press the button.

[0082] S1308 is the end of the loop of S1305 to S1308. When the processing has been completed for all the process target buttons, the process proceeds to S1309. When the processing has not been completed for all the process target buttons, the process proceeds to S1305.

[0083] In step S1309, the CPU 111 references the copy setting value 1100, and highlights the button corresponding to the selected paper feed tray to set it in a selected state.

[0084] In step S1310, the CPU 111 accepts a user operation. The user operation accepted in this step is pressing of various buttons displayed on the paper selection screen 900.

[0085] In S1311, the CPU 111 branches the process depending on the type of operation accepted in S1310. Specifically, if any button (feed tray selection button) of the button group 901 for selecting a feed tray is pressed, the process proceeds to S1312, and if the “OK” button 902 is pressed, the process proceeds to S1314.

[0086] In S1312, CPU 111 highlights the button that was pressed in S1310, and updates the selected state. In S1313, CPU 111 updates the display of paper selection screen 900 in accordance with the change in the selected state in S1312. When the process of S1313 ends, the process proceeds to S1310.

[0087] In S1314, CPU 111 updates the contents of copy setting value 1100 according to the selected button among button group 901. In S1315, CPU 111 closes (hides) paper selection screen 900. When the process of S1315 ends, the paper setting process (S1005) shown in Fig. 13 ends. In other words, the process returns to the caller.

[0088] (Finishing settings processing) FIG. 14 is a flowchart showing the detailed flow of the finishing setting process (S1007).

[0089] In S1401, CPU 111 displays finishing setting screen 600 on operation unit 150. In S1402, CPU 111 updates the display of finishing setting screen 600 based on the contents of copy setting value 1100. In S1403, CPU 111 accepts a user operation. The user operation accepted in this step is pressing of various buttons displayed on finishing setting screen 600.

[0090] In S1404, CPU 111 branches the process depending on the type of operation accepted in S1403. Specifically, if the "C-fold" button 609 is pressed, the process proceeds to S1405; if the "OK" button 610 is pressed, the process proceeds to S1415; and if any other operation is accepted, the process proceeds to S1417. Note that other operations are operations other than pressing the "C-fold" button 609 and the "OK" button 610.

[0091] In S1405, the CPU 111 sets "C-fold" to the finishing setting of the copy setting value 1100. That is, the CPU 111 changes the C-fold setting.

[0092] In S1406, CPU 111 displays C-fold setting screen 700 on operation unit 150. In S1407, CPU 111 updates the display of C-fold setting screen 700 based on the contents of copy setting value 1100. In S1408, CPU 111 accepts a user operation. The user operation accepted in this step is pressing of various buttons displayed on C-fold setting screen 700.

[0093] In S1409, CPU 111 branches the process depending on the type of operation accepted in S1408. Specifically, if the “Specify” button is pressed, the process proceeds to S1410; if the “OK” button is pressed, the process proceeds to S1411; if the “Next” button is pressed, the process proceeds to S1413; and if another operation is accepted, the process proceeds to S1414. The other operations are operations other than pressing the “Specify” button 707, the “OK” button 705, and the “Next” button 708.

[0094] In S1410, the CPU 111 hides the "OK" button 705 and displays the "Next" button 708. When the process of S1410 ends, the process proceeds to S1407.

[0095] In S1411, the CPU 111 updates the copy setting value 1100 in accordance with the setting contents of the C-fold setting screen 700.

[0096] In S1412, the CPU 111 closes (hides) the C-fold setting screen 700. When the process of S1412 ends, the process proceeds to S1402.

[0097] In S1413, the CPU 111 performs a folding width setting process. The details of the folding width setting process will be described later. When the process of S1413 ends, the process proceeds to S1412.

[0098] In S1414, the CPU 111 executes a subroutine, which is other processing. The processing of the subroutine is processing according to the user operation accepted in S1408. Details of the processing of the subroutine are omitted. When the processing of S1414 ends, the process proceeds to S1407.

[0099] In S1417, the CPU 111 executes a subroutine, which is other processing. The processing of the subroutine is processing according to the user operation accepted in S1403. Details of the processing of the subroutine are omitted. When the processing of S1417 ends, the processing proceeds to S1402.

[0100] In S1415, the CPU 111 updates the copy setting value 1100 in accordance with the setting contents of the finishing setting screen 600.

[0101] In S1416, the CPU 111 closes (hides) the finishing setting screen 600. When the process of S1416 ends, the finishing setting process (S1007) shown in FIG.

[0102] (Fold width setting process) FIG. 15 is a flowchart showing a detailed flow of the folding width setting process (S1413).

[0103] In S1501, the CPU 111 displays the folding width setting screen 800 on the operation unit 150.

[0104] In S1502, CPU 111 refers to the paper feed tray in copy setting value 1100 and determines whether the paper set in the selected paper feed tray can be folded into a C-fold. For example, if the paper set in the selected paper feed tray is paper registered in C-foldable paper size data 410, it is determined that C-folding is possible. If the paper set in the selected paper feed tray is not paper registered in C-foldable paper size data 410, or if the paper feed tray set in copy setting value 1100 is "automatic," it is determined that C-folding is not possible. If it is determined that C-folding is possible (YES in S1502), the process proceeds to S1503. If it is determined that C-folding is not possible (NO in S1502), the process proceeds to S1510.

[0105] In S1503, CPU 111 refers to copy setting value 1100 and determines whether the C-fold width is set. For example, if the C-fold width is a positive numerical value in copy setting value 1100, it is determined that the C-fold width is set. If the C-fold width is a numerical value of 0 or less in copy setting value 1100, or if the C-fold width is "automatic," it is determined that the C-fold width is not set. If it is determined that the C-fold width is set (YES in S1503), the process proceeds to S1505. If it is determined that the C-fold width is not set (NO in S1503), the process proceeds to S1504. In S1504, CPU 111 sets the C-fold width to 0.

[0106] In S1505, CPU 111 refers to setting range data 420 for each side when folding in C-folding, and acquires the range of folding width that can be set for side A.

[0107] In S1506, the CPU 111 displays the settable folding width acquired in S1505 on the folding width setting screen 800 as a folding width settable range 803.

[0108] In S1507, CPU 111 displays buttons for changing the folding width on folding width setting screen 800. That is, CPU 111 displays a "+" button 805, which increases the size of the folding width when pressed, and a "-" button 804, which decreases the size of the folding width when pressed, on folding width setting screen 800. For example, when "+" button 805 is pressed, the value of the folding width is increased by 1 depending on the time or number of times it is pressed. On the other hand, when "-" button 804 is pressed, the value of the folding width is decreased by 1 depending on the time or number of times it is pressed.

[0109] In S1508, the CPU 111 enables the "OK" button 809. That is, the CPU 111 makes the "OK" button 809 available for pressing.

[0110] In S1509, the CPU 111 displays the "Change" button 802 on the folding width setting screen 800. When the process of S1509 ends, the process proceeds to S1514.

[0111] In S1510, CPU 111 refers to the paper set in paper cassette 317 and manual feed tray 318 and determines whether there is a paper feed tray in which paper that can be folded in C is set. If it is determined that there is a paper feed tray in which paper that can be folded in C is set (YES in S1510), the process proceeds to S511. If it is determined that there is no paper feed tray in which paper that can be folded in C is set (NO in S1510), the process proceeds to S1512.

[0112] In S1511, CPU 111 selects one of paper cassette 317 and manual feed tray 318 in which paper that can be folded in C shape is set as the paper feed tray to be used for copying. If there are multiple paper feed trays in which paper that can be folded in C shape is set, the paper feed tray is selected based on a preset priority. Alternatively, the paper cassette with the smallest cassette number may simply be selected. Alternatively, if the paper set in manual feed tray 318 is capable of being folded in C shape, manual feed tray 318 may be selected with priority. When the process of S1511 ends, the process proceeds to S1504.

[0113] In S1512, CPU 111 displays a message "Paper that can be folded into C is not set. Please check the paper" 811, indicating that there is no paper that can be folded into C, on folding width setting screen 800. CPU 111 also hides folding width settable range 803, "-" button 804, "+" button 805, and folding width setting value 806 on folding width setting screen 800.

[0114] In S1513, the CPU 111 disables the "OK" button 809. That is, the CPU 111 shades the "OK" button 809 on the folding width setting screen 800, making it impossible to press the button. When the process of S1513 ends, the process proceeds to S1509.

[0115] In S1514, the CPU 111 accepts a user operation on the folding width setting screen 800. The user operation accepted in this step is pressing of various buttons displayed on the folding width setting screen 800.

[0116] In S1515, CPU 111 branches the process depending on the type of operation accepted in S1514. Specifically, if the "+" button 805 is pressed, the process proceeds to S1516; if the "-" button 804 is pressed, the process proceeds to S1519; if the "Change" button 802 is pressed, the process proceeds to S1520; and if any other operation is accepted, the process proceeds to S1529. Note that other operations are operations other than pressing the "+" button 805, the "-" button 804, the "Change" button 802, and the "OK" button 809.

[0117] In S1516, CPU 111 determines whether the folding width for C-folding is set to 0. If it is determined that the folding width for C-folding is set to 0 (YES in S1516), the process proceeds to S1517. If it is determined that the folding width for C-folding is not set to 0 (NO in S1516), the process proceeds to S1518.

[0118] In S1517, CPU 111 refers to setting range data 420 for each side when folding in C-folding, and sets the lower limit of the folding width that can be set to side A of the paper set in the selected paper feed tray as the folding width for C-folding. When the process of S1517 ends, the process proceeds to S1514.

[0119] In S1518, the CPU 111 adds a predetermined amount (1 mm in this embodiment) to the C-fold width. After the process of S1518 ends, the process proceeds to S1514.

[0120] In S1519, the CPU 111 subtracts a predetermined amount (1 mm in this embodiment) from the C-fold width. After the process of S1519 ends, the process proceeds to S1514.

[0121] In S1520, the CPU 111 performs paper setting processing. The details of the paper setting processing are the same as those of S1005 described above, and are shown in the flow chart of Fig. 13, so detailed description thereof will be omitted.

[0122] In S1521, the CPU 111 determines whether the paper set in the selected paper feed tray can be folded in C-fold. If it is determined that the paper can be folded in C-fold (YES in S1521), the process proceeds to S1522. If it is determined that the paper cannot be folded in C-fold (NO in S1521), the process proceeds to S1514.

[0123] In S1522, CPU 111 determines whether the paper feed tray selected before and after the paper setting process (S1520) was called was changed. If it is determined that the paper feed tray was changed (YES in S1522), the process proceeds to S1523. If it is determined that the paper feed tray was not changed (NO in S1522), the process proceeds to S1514.

[0124] In S1523, CPU 111 sets the folding width for C-folding to 0. In S1524, CPU 111 updates the display on folding width setting screen 800. Specifically, message 811 indicating that there is no paper that can be folded into C-fold is hidden, and buttons 803 to 806 for setting the folding width are displayed. At this time, the upper and lower limit values ​​of side A that can be set for the paper set in the paper feed tray selected in S1520 are displayed in folding width settable range 803. When the processing of S1524 ends, the process proceeds to S1514.

[0125] In S1529, the CPU 111 executes a subroutine which is other processing. The subroutine executes processing according to the user operation accepted in S1514. Details of the subroutine processing are omitted. When the processing of S1529 ends, the processing proceeds to S1514.

[0126] In S1525, CPU 111 determines whether the set folding width is within the range between the upper limit and lower limit of the A side that can be set for the paper loaded in the selected paper feed tray. If the result of the determination in this step is true (YES in S1525), the process proceeds to S1527, and if the result of the determination in this step is false (NO in S1525), the process proceeds to S1526.

[0127] In S1526, CPU 111 displays on operation unit 150 an error screen indicating that the set folding width is outside the range of upper and lower limits of side A that can be set for the paper loaded in the selected paper feed tray. For example, as shown in FIG. 12(b), error screen 1210 including message 1212 prompting the user to reset the width is displayed. When the user presses "OK" button 1211 on error screen 1210, the process proceeds to S1514.

[0128] In S1527, the CPU 111 updates the copy setting value 1100 based on the setting content on the folding width setting screen 800.

[0129] In S1528, CPU 111 closes (hides) folding width setting screen 800. When the process of S1528 ends, the folding width setting process shown in FIG.

[0130] As described above, according to this embodiment, a sheet that can be folded into a C-fold is automatically selected when the folding width setting screen 800 is displayed, so that the settings can be made without any inconsistencies on the folding width setting screen 800. This can prevent the user from making unnecessary settings.

[0131] Furthermore, if there is no paper feed tray in which paper that can be folded in C-fold is set, the user is notified when the folding width setting screen 800 is displayed. This makes it possible to prevent the user from making unnecessary settings even when there is no paper feed tray in which paper that can be folded in C-fold is set.

[0132] <<Embodiment 2>> In this embodiment, a mode will be described in which a folding width setting screen including a warning message is displayed when the paper in the selected paper feed tray is a paper that cannot be folded into a C-fold. In this embodiment, the differences from the first embodiment will be mainly described.

[0133] (Fold width setting screen) FIG. 16 is a diagram showing an example of a folding width setting screen when the paper set in the selected paper feed tray cannot be folded in C-fold.

[0134] The folding width setting screen 1600 displays a message "Paper that cannot be folded into C has been selected. Please change the settings" 1611, indicating that paper that cannot be folded into C has been selected. Note that the user can select a paper feed tray in which paper that can be folded into C is set on the paper selection screen 900 that is displayed by pressing the "Change" button 802 on the folding width setting screen 1600.

[0135] (Fold width setting process) 17 is a flowchart showing a detailed flow of the folding width setting process (S1413) according to this embodiment. In FIG. 17, the process of S1711 is performed instead of S1511 shown in FIG.

[0136] In S1510, when it is determined that there is a paper feed tray in which paper that can be folded in C-shape is set (YES in S1510), the process proceeds to S1711. In S1711, CPU 111 displays message 1601 indicating that the paper set in the selected paper feed tray cannot be folded in C-shape on folding width setting screen 1600. When the process of S1711 ends, the process proceeds to S1513.

[0137] As described above, in this embodiment, a paper feed tray in which paper that can be folded into a C shape is set is not automatically selected, and a folding width setting screen including a warning message indicating that paper set in the selected paper feed tray is paper that cannot be folded into a C shape is displayed. Then, the user selects a paper feed tray in which paper that can be folded into a C shape is set, and then sets the folding width. This prevents the user from making unnecessary settings. Also, compared to the first embodiment (the folding width setting process shown in FIG. 15), while the user has to go through more effort in selecting a paper feed tray, there is an advantage in that the paper feed tray can be selected according to the user's intention.

[0138] <<Embodiment 3>> In this embodiment, a mode will be described in which the paper selection screen is displayed when the paper in the selected paper feed tray is a paper that cannot be folded in C-fold. In this embodiment, the differences from the second embodiment will be mainly described.

[0139] (Fold width setting process) 18 is a flowchart showing a detailed flow of the folding width setting process (S1413) according to this embodiment. In FIG. 18, in addition to the flow shown in FIG. 17, the processes of S1801 and S1802 are performed.

[0140] In S1502, when it is determined that the paper in the selected paper feed tray cannot be folded in C-fold (NO in S1502), the process proceeds to S1801. In S1801, the CPU 111 performs paper setting processing. The details of the paper setting processing are the same as those of S1005 described above, and are shown in the flow in FIG. 13, and detailed description thereof will be omitted.

[0141] In S1802, CPU 111 determines whether the paper set in the selected paper feed tray can be folded in C-shape. If it is determined that the paper can be folded in C-shape (YES in S1802), the process proceeds to S1503. If it is determined that the paper cannot be folded in C-shape (NO in S1802), the process proceeds to S1510.

[0142] As described above, in this embodiment, the paper feed tray in which C-foldable paper is set is not automatically selected, and the paper selection screen 900 is opened to prompt the user to set the paper as necessary. This saves the user the trouble of pressing the "Change" button 802 on the folding width setting screen 800. This makes it possible to prevent the user from making unnecessary settings.

[0143] <<Embodiment 4>> In this embodiment, a mode will be described in which the timing for automatic selection of paper that can be folded in C is changed before the folding width selection screen is displayed. That is, a case will be described in which paper that can be folded in C is automatically selected after a user has instructed to fold in C but before the folding width selection screen is displayed. In this embodiment, the differences from the first and third embodiments will be mainly described.

[0144] For example, the determination in S1502 and the processing in S1511 in the folding width setting process (FIG. 15) may be performed before the processing in S1501 for displaying the C-fold setting screen 700, and between the processing in S1405 and S1406 in the finishing setting process (FIG. 14).

[0145] Furthermore, the determination in S1502 in the folding width setting process (FIG. 18) and the calling of the paper setting process in S1801 may be performed between the process of S1505 and the process of S1506 in the folding width setting process (FIG. 15).

[0146] As described above, in this embodiment, by performing the judgment in S1502 and the process in S1511 between S1405 and S1406, even if the folding method that can be specified varies depending on the paper, the C-fold setting screen corresponding to the paper can be displayed. Therefore, it is possible to prevent the user from performing unnecessary operations related to the tri-fold setting.

[0147] <<Embodiment 5>> In this embodiment, a mode in which replacement of sheets in a sheet feed tray is detected and updated will be described. In this embodiment, the differences from the first to fourth embodiments will be mainly described.

[0148] (Fold width setting process) FIG. 19 is a flowchart showing a detailed flow of the folding width setting process (S1413) according to this embodiment. FIG. 19 shows a case where a change of paper set in a paper feed tray is detected while the folding width setting screen 800 is displayed. FIG. 20 shows an example of the folding width setting screen. FIG. 20(a) shows a case where a paper (A3) that can be folded into a C shape is set in the second paper cassette. FIG. 20(b) shows a case where the second paper cassette is selected and a folding width of 130 mm is set for A3 paper. FIG. 20(c) shows a case where the paper set in the second paper cassette is changed from the state corresponding to FIG. 20(b) to a paper that cannot be folded into a C shape, but the same paper (A3) that can be folded into a C shape is set in the manual feed tray as before the change.

[0149] In S1901, CPU 111 displays folding width setting screen 800 on operation unit 150. In S1902, CPU 111 performs a process of selecting a sheet feed tray capable of C-folding. The process of selecting a sheet feed tray capable of C-folding is similar to the processes in S1502 to S1513.

[0150] In S1903, the CPU 111 acquires the size of the paper set in the selected paper feed tray. In S1904, the CPU 111 accepts a user operation in this step. The user operation is the pressing of various buttons displayed on the folding width setting screen 800.

[0151] In S1905, CPU 111 branches the process depending on the type of operation accepted in S1904. Specifically, if the operation is a change of paper in the paper feed tray, the process proceeds to S1906; if the operation is the pressing of the "OK" button, the process proceeds to S1915; and if the operation is any other operation, the process proceeds to S1919. Note that a change of paper in the paper feed tray refers to a change of paper set in paper cassette 317 or manual feed tray 318. Other operations are operations other than changing paper in the paper feed tray and pressing the "OK" button.

[0152] In S1906, the CPU 111 determines whether the paper set in the selected paper feed tray can be folded into a C-fold. If it is determined that the paper can be folded into a C-fold (YES in S1906), the process proceeds to S1907. If it is determined that the paper cannot be folded into a C-fold (NO in S1906), the process proceeds to S1910.

[0153] In S1907, CPU 111 determines whether the size of the paper set in the selected paper feed tray has been changed from the paper size acquired in S1903. If it is determined that the size has been changed (YES in S1907), the process proceeds to S1908, and if it is determined that the size has not been changed (NO in S1907), the process proceeds to S1903.

[0154] In S1908, CPU 111 sets the folding width for C-folding to 0. In S1909, CPU 111 updates the display of folding width setting screen 800. If message 811 is displayed indicating that there is no paper that can be folded into C-fold, this message 811 is hidden and buttons 804 to 806 for changing the folding width are displayed. Folding width setting value 806 displays a folding width of 0. Furthermore, a value based on the size of the paper set in the selected paper feed tray is displayed in folding width settable range 803. When the processing of S1909 is completed, the processing proceeds to S1903.

[0155] In S1910, CPU 111 refers to the paper set in paper cassette 317 and manual feed tray 318 and determines whether there is a paper feed tray in which paper that can be folded in C is set. If it is determined that there is a paper feed tray in which paper that can be folded in C is set (YES in S1910), the process proceeds to S1911. If it is determined that there is no paper feed tray in which paper that can be folded in C is set (NO in S1910), the process proceeds to S1914.

[0156] In S1911, CPU 111 selects one of paper cassettes 317 and manual feed tray 318 in which paper that can be folded in C-shape is set, as the paper feed tray to be used for copying, similarly to S1511.

[0157] In S1912, CPU 111 determines whether the size of the paper set in the paper feed tray selected in S1911 is the same as the paper size acquired in S1903. If it is determined that they are the same (YES in S1912), the process proceeds to S1913, and if it is determined that they are not the same (NO in S1912), the process proceeds to S1908.

[0158] In S1913, the CPU 111 updates the sheet feed tray information 801 displayed on the folding width setting screen 800 based on the sheet feed tray selected in S1911. When the process of S1913 ends, the process proceeds to S1903.

[0159] In S1914, CPU 111 hides buttons 803 to 806 on folding width setting screen 800, while displaying message 811 indicating that there is no paper that can be folded in C-fold. When the process of S1913 ends, the process proceeds to S1903.

[0160] In S1919, the CPU 111 executes a subroutine which is other processing. The subroutine executes processing according to the user operation accepted in S1904. Details of the subroutine processing are omitted. When the processing of S1919 ends, the process proceeds to S1903.

[0161] In S1915, CPU 111 determines whether the set folding width is within the range between the upper limit and lower limit of the A side that can be set for the paper loaded in the selected paper feed tray. If the determination result in this step is true (YES in S1915), the process proceeds to S1917, and if the determination result in this step is false (NO in S1915), the process proceeds to S1916.

[0162] In S1916, CPU 111 displays on operation unit 150 an error screen indicating that the set folding width is outside the range of upper and lower limits of side A that can be set for the paper loaded in the selected paper feed tray. For example, as shown in FIG. 12(b), error screen 1210 is displayed. When the user presses "OK" button 1211 on error screen 1210, the process proceeds to S1903.

[0163] In S1917, the CPU 111 updates the contents of the copy setting value 1100 based on the settings on the folding width setting screen 800.

[0164] In S1918, the CPU 111 closes (hides) the folding width setting screen 800. When the process of S1918 ends, the folding width setting process shown in FIG.

[0165] As described above, in this embodiment, when a user replaces the paper set in the paper feed tray (paper cassette 317 and manual feed tray 318), the sensor (open / close sensor, paper size sensor, etc.) provided in the paper feed tray detects this replacement. This allows the folding width to be set appropriately.

[0166] (Update of folding width setting screen) For example, when there is no paper feed tray in which paper that can be folded in C is set (FIG. 8B), if the user sets paper that can be folded in C (e.g., A3) in the third paper cassette, MFP100 detects the change in the setting of the third paper cassette. Furthermore, since the paper size of A3 set in the third paper cassette can be folded in C, the third paper cassette is automatically selected (resulting in the state of FIG. 20A). In this case, CPU111 displays a folding width setting screen 2010 as shown in FIG. 20A. The folding width setting screen 2010 includes information 2011 of the automatically selected paper feed tray in which paper that can be folded in C is set, and a fold width setting range 2012 corresponding to the paper set in the selected paper feed tray. In other words, the user does not need to perform an operation to select a paper feed tray again after setting paper that can be folded in C.

[0167] Also, in the state of FIG. 20(b) (a state in which the second paper cassette is selected and a folding width of 130 mm is set for A3 paper), if the user sets paper that cannot be folded in C-fold in the second paper cassette, MFP100 detects the change in paper size. That is, MFP100 detects the change in the size of the paper set in the second paper cassette. At this time, if paper that can be folded in C-fold is set in another paper feed tray (for example, manual feed tray 318), MFP100 automatically selects manual feed tray 318. Furthermore, if the paper size of the paper set in manual feed tray 318 is the same as the paper size (A3) of the paper before the change was detected, the numerical value of the folding width input in fold width settable range 2033 is maintained, as shown in FIG. 20(c). That is, even if the selection of the paper feed tray is changed, if the paper size is the same, the folding width is maintained, and the user does not need to perform an operation to set the folding width again.

[0168] On the other hand, if the paper size set in the selected paper feed tray is different, the folding width is reset to 0. For example, if the manual feed tray 318 in which A4R (A4-R) paper is set is selected from the state of FIG. 20(b) (in which the second paper cassette is selected and a folding width of 130 mm is set for A3 paper), the folding width is reset as shown in FIG. 8(a). At this time, when the user presses the "OK" button 809, an error screen 1210 is displayed (see S1526), ​​so that the user can realize that it is necessary to perform an operation to set the folding width again. Normally, when the paper size is changed, the folding width needs to be changed accordingly, so that it is possible to prevent the user from forgetting to set it. In addition, the folding width settable range 803 is updated according to the paper size set in the selected paper feed tray, so that the user can set the folding width appropriately.

[0169] <<Embodiment 6>> In this embodiment, a mode will be described in which the automatic selection of a paper feed tray in which paper that can be folded in C-size is set is not performed. In this embodiment, the differences from the fifth embodiment will be mainly described.

[0170] (Fold width setting process) Fig. 21 is a flowchart showing a detailed flow of the folding width setting process according to this embodiment. Fig. 21 shows a case where automatic selection of a paper feed tray capable of C-folding is not performed. In this embodiment, since the paper feed tray selection in S1902 shown in Fig. 19 is not performed, the process proceeds to S1903 when the process of S1901 is completed. Also, since the paper feed tray selection in S1911 shown in Fig. 19 is not performed, if it is determined in S1910 that there is a paper feed tray in which paper capable of C-folding is set, the process proceeds to S2101. Fig. 22 is a diagram showing an example of a folding width setting screen.

[0171] In S2101, CPU 111 displays a message indicating that the paper set in the selected paper feed tray cannot be folded in C on the folding width setting screen. In the state shown in Fig. 16 (a state in which manual feed tray 318 in which paper that cannot be folded in C is set is selected), if the user sets paper that can be folded in C on manual feed tray 318, the screen is automatically updated to the state shown in Fig. 8(a).

[0172] (Other embodiments) In the above, a case where message 811 indicating that there is no paper that can be folded in C-fold is displayed in S1512 has been described, but the present invention is not limited to this. For example, instead of displaying message 811, manual feed tray 318 may be selected as the paper feed stage, and a message may be displayed that prompts the user to set paper that can be folded in C-fold in the manual feed tray. If paper cassette 317 does not have paper that can be folded in C-fold, the easiest solution for the user is to set paper that can be folded in C-fold in the manual feed tray. For this reason, prompting the user to set paper that can be folded in C-fold in the manual feed tray is effective in improving operability. In this case, the setting of paper in manual feed tray 318 is detected in S1514.

[0173] In the above, a case where the "OK" button 809 is provided on the folding width setting screen 800 has been described, but the present invention is not limited to this. For example, a "Next" button may be provided instead of the "OK" button 809 on the folding width setting screen 800, and a confirmation screen may be displayed when the "Next" button is pressed.

[0174] (Confirmation screen) Fig. 22 is a diagram showing an example of a confirmation screen. The confirmation screen 2200 displays setting values ​​2201 of the folding widths of sides A, B, and C when performing a C-fold. The confirmation screen 2200 also displays an "OK" button 2202 for confirming the contents set on the confirmation screen 2200 when pressed by the user. In this case, the processing from S1525 onwards in Fig. 15 will be the processing when the "Next" button is pressed.

[0175] In S1511, if there are multiple paper feed trays in which C-foldable paper is set, a paper selection screen 900 shown in FIG. 9B may be displayed on the operation unit 150 to allow the user to select a paper feed tray.

[0176] Although the above description has been given taking C-folding as an example, the present invention is not limited to this. For example, the present invention may be applied to Z-folding (outer three folds).

[0177] In the above, the determination as to whether or not C-folding is possible is performed based on the paper size, but the present invention is not limited to this. For example, the determination as to whether or not C-folding is possible may be performed based on the paper type. If thick paper or special paper cannot be folded into a C-fold, the paper feed tray in which such paper is set can be determined as the paper feed tray in which paper that cannot be folded into a C-fold is set.

[0178] In the above, in S1008, S1505, and S1517, the settable folding width is obtained by referring to the set range data 420 of each side when folding in C-folding, but this is not limited to the above. The settable folding width may be obtained by performing calculations each time based on the constraints of the finisher 170 on the length of each side. In particular, in the case of a configuration in which the margin d shown in FIG. 4(a) can be changed within a certain range by user settings, the settable folding width may be obtained based on calculations rather than referring to the set range data 420 of each side when folding in C-folding. In this case, it is suitable for implementation in an information processing device and is efficient.

[0179] (Other embodiments) The present disclosure can also be realized by executing the following process. That is, the present disclosure can also be realized by supplying a program that realizes one or more functions of the above-described embodiments to a system or device via a network or various storage media, and having one or more processors in a computer of the system or device read and execute the program. The present disclosure can also be realized by a circuit (e.g., ASIC) that realizes one or more functions.

[0180] The disclosure of this embodiment includes the following configuration examples.

[0181] (Configuration 1) A sheet processing apparatus that performs a third fold on a sheet, A selection means for selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; having The display control means when the sheet held in the selected holding means cannot be folded in thirds and the plurality of holding means includes a holding means holding a sheet that can be folded in thirds, the holding means holding the sheet that can be folded in thirds is displayed on the screen for the setting process so as to be selectable. A sheet processing apparatus comprising:

[0182] (Configuration 2) The setting for folding the sheet in three is the folding width of the sheet, The display control means determines whether the sheet can be folded in three based on the size of the sheet. 2. The sheet processing apparatus according to claim 1,

[0183] (Configuration 3) When the plurality of holding means does not have a holding means holding a sheet that can be folded into thirds, the display control means displays a message indicating that there is no holding means holding a sheet that can be folded into thirds. 3. The sheet processing apparatus according to configuration 1 or 2.

[0184] (Configuration 4) a detection means for detecting that the sheet held by the selected holding means has been changed; After the detection, if the sheet held by the selected holding means cannot be folded into thirds and the plurality of holding means includes a holding means holding a sheet that can be folded into thirds, the selecting means selects the holding means holding the sheet that can be folded into thirds. 4. The sheet processing apparatus according to any one of configurations 1 to 3.

[0185] (Configuration 5) A sheet processing apparatus that folds a sheet in three, A selection means for selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; having The display control means When the sheet held by the selected holding means cannot be folded in thirds, a message is displayed indicating that the sheet held by the selected holding means cannot be folded in thirds. A sheet processing apparatus comprising:

[0186] (Configuration 6) A sheet processing apparatus that performs a third fold on a sheet, A selection means for selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; having The display control means If the sheet held in the selected holding means cannot be folded in three, a screen for setting processing is displayed for selecting one of the plurality of holding means. A sheet processing apparatus comprising:

[0187] (Configuration 7) Among the plurality of holding means, the holding means that can be selected on the setting process screen for selecting one holding means is only the holding means that holds the sheet that can be folded in three. 7. The sheet processing apparatus according to configuration 6.

[0188] (Configuration 8) A sheet processing apparatus that performs a third fold on a sheet, A selection means for selecting one of the plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; a detection means for detecting that the sheet held in the selected holding means on the screen for setting processing has been changed; having The display control means changing the display of the screen for the setting process based on the detected change content; A sheet processing apparatus comprising:

[0189] (Configuration 9) A sheet processing apparatus that performs a third fold on a sheet, A selection means for selecting one of the plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; a detection means for detecting that the sheet held in the selected holding means on the screen for setting processing has been changed; having The display control means The setting value on the setting processing screen is changed to an initial value based on the detected change. A sheet processing apparatus comprising:

[0190] (Configuration 10) The three folds are either inner or outer three folds. 10. The sheet processing apparatus according to any one of configurations 1 to 9.

[0191] (Configuration 11) 1. A sheet processing method for performing a tri-fold on a sheet, comprising: A selection step of selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; Including, In the display control step, When the sheet held in the selected holding means cannot be folded in thirds and the plurality of holding means includes a holding means holding a sheet that can be folded in thirds, the holding means holding the sheet that can be folded in thirds is displayed on the screen for the setting process so as to be selectable. A sheet processing method comprising:

[0192] (Configuration 12) A sheet processing method for performing a tri-fold on a sheet, comprising: A selection step of selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; Including, In the display control step, When the sheet held by the selected holding means cannot be folded in thirds, a message is displayed indicating that the sheet held by the selected holding means cannot be folded in thirds. A printing method comprising:

[0193] (Configuration 13) 1. A sheet processing method for performing a tri-fold on a sheet, comprising: A selection step of selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; Including, In the display control step, If the sheet held in the selected holding means cannot be folded in three, a screen for setting processing for selecting one of the plurality of holding means is displayed. A sheet processing method comprising:

[0194] (Configuration 14) 1. A sheet processing method for performing a tri-fold on a sheet, comprising: a selection step of selecting one holding means from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; a detection step of detecting that the sheet held by the selected holding means has been changed on the screen for setting processing; Including, In the display control step, The display of the screen for the setting process is changed based on the detected change. A sheet processing method comprising:

[0195] (Configuration 15) 1. A sheet processing process for performing a tri-fold on a sheet, comprising: a selection step of selecting one holding means from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; a detection step of detecting that the sheet held by the selected holding means has been changed on the screen for setting processing; Including, In the display control step, The setting value on the setting processing screen is changed to an initial value based on the detected change. A sheet processing method comprising:

[0196] (Configuration 16) 12. A program for causing a computer to execute each step of the sheet processing method according to claim 11.

[0197] (Configuration 17) 13. A program for causing a computer to execute each step of the sheet processing method according to claim 12.

[0198] (Configuration 18) A program for causing a computer to execute each step of the sheet processing method according to configuration 13.

[0199] (Configuration 19) A program for causing a computer to execute each step of the sheet processing method according to configuration 14.

[0200] (Configuration 20) A program for causing a computer to execute each step of the sheet processing method according to configuration 15.

Claims

1. A sheet processing apparatus that performs a third fold on a sheet, A selection means for selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; having The display control means when the sheet held in the selected holding means cannot be folded into thirds and the plurality of holding means includes a holding means holding a sheet that can be folded into thirds, the holding means holding the sheet that can be folded into thirds is displayed on the screen for the setting process in a selectable manner. A sheet processing apparatus comprising:

2. The setting for folding the sheet in three is a folding width of the sheet, The display control means determines whether the sheet can be folded in three based on the size of the sheet.

2. The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus.

3. The display control means displays, when there is no holding means holding a sheet that can be folded into thirds among the plurality of holding means, a message indicating that there is no holding means holding a sheet that can be folded into thirds.

2. The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus.

4. a detection means for detecting that the sheet held by the selected holding means has been changed; After the detection, if the sheet held by the selected holding means cannot be folded into thirds and the plurality of holding means includes a holding means holding a sheet that can be folded into thirds, the selecting means selects the holding means holding the sheet that can be folded into thirds.

2. The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus.

5. A sheet processing apparatus that folds a sheet in three, A selection means for selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; having The display control means When the sheet held by the selected holding means cannot be folded in thirds, a message is displayed indicating that the sheet held by the selected holding means cannot be folded in thirds. A sheet processing apparatus comprising:

6. A sheet processing apparatus that performs a third fold on a sheet, A selection means for selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; having The display control means if the sheet held in the selected holding means cannot be folded in three, displaying a screen for setting processing for selecting one of the plurality of holding means. A sheet processing apparatus comprising:

7. Among the plurality of holding means, the holding means that can be selected on the setting processing screen for selecting one holding means is only the holding means that holds the sheet that can be folded in three.

7. The sheet processing apparatus according to claim 6,

8. A sheet processing apparatus that performs a third fold on a sheet, a selection means for selecting one of a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; a detection means for detecting that the sheet held in the selected holding means on the screen for setting processing has been changed; having The display control means changing the display of the screen for the setting process based on the detected change content; A sheet processing apparatus comprising:

9. A sheet processing apparatus that performs a third fold on a sheet, a selection means for selecting one of a plurality of holding means for holding the sheet; A display control means for displaying a screen for setting processing for folding the sheet into three; a detection means for detecting that the sheet held in the selected holding means on the screen for setting processing has been changed; having The display control means The setting value on the setting processing screen is changed to an initial value based on the detected change. A sheet processing apparatus comprising:

10. The three folds are either inner three folds or outer three folds.

2. The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus.

11. 1. A sheet processing method for performing a tri-fold on a sheet, comprising the steps of: a selection step of selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; Including, In the display control step, when the sheet held in the selected holding means cannot be folded into thirds and the plurality of holding means includes a holding means holding a sheet that can be folded into thirds, the holding means holding the sheet that can be folded into thirds is displayed on the screen for the setting process in a selectable manner. A sheet processing method comprising:

12. A sheet processing method for performing a tri-fold on a sheet, comprising the steps of: a selection step of selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; Including, In the display control step, When the sheet held by the selected holding means cannot be folded in thirds, a message is displayed indicating that the sheet held by the selected holding means cannot be folded in thirds. A sheet processing method comprising:

13. 1. A sheet processing method for performing a tri-fold on a sheet, comprising the steps of: a selection step of selecting one holding means for performing the folding in three from among a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; Including, In the display control step, If the sheet held in the selected holding means cannot be folded in three, a screen for setting processing for selecting one of the plurality of holding means is displayed. A sheet processing method comprising:

14. 1. A sheet processing method for performing a tri-fold on a sheet, comprising the steps of: a selection step of selecting one of a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; a detection step of detecting that the sheet held by the selected holding means has been changed on the screen for setting processing; Including, In the display control step, The display of the screen for the setting process is changed based on the detected change. A sheet processing method comprising:

15. 1. A sheet processing process for performing a tri-fold on a sheet, comprising the steps of: a selection step of selecting one of a plurality of holding means for holding the sheet; a display control step of displaying a screen for setting processing for folding the sheet into three; a detection step of detecting that the sheet held by the selected holding means has been changed on the screen for setting processing; Including, In the display control step, The setting value on the setting processing screen is changed to an initial value based on the detected change. A sheet processing method comprising:

16. A program for causing a computer to execute each step of the sheet processing method according to claim 11.

17. A program for causing a computer to execute each step of the sheet processing method according to claim 12.

18. A program for causing a computer to execute each step of the sheet processing method according to claim 13.

19. A program for causing a computer to execute each step of the sheet processing method according to claim 14.

20. A program for causing a computer to execute each step of the sheet processing method according to claim 15.

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