JP6552690B2 - Printing apparatus, control method therefor, and program - Google Patents

Description

  The present invention relates to a printing apparatus, a control method therefor, and a program, and more particularly to a printing apparatus that can be connected to a post-processing apparatus capable of saddle stitching, a control method therefor, and a program.

  Conventionally, there is known a sheet post-processing apparatus which executes a saddle-stitching process of binding a center of a plurality of sheets, folding the bound sheets into two, and forming a book and outputting it (see Patent Document 1) ). In the sheet post-processing apparatus, as shown in FIG. 23, the sheet conveyed from the image forming apparatus is one of the stacking trays 101 and 102 and the saddle stitching processing tray 103 depending on the type of finishing process set by the user. The paper is discharged. For example, when the finishing process is not executed, the paper is discharged to the stacking tray 101. When executing the normal stapling process, the sheet is discharged onto the stacking tray 102, and when the saddle stitching process is performed, the sheet is discharged onto the saddle stitching process tray 103.

  In addition, in the sheet post-processing apparatus, there is also proposed an apparatus that achieves miniaturization by sharing the conveyance path for executing the stapling process and the conveyance path for performing the saddle stitching process, as shown in FIG. For example, when the saddle stitching process is executed, the sheet that has entered the transport path 104 for executing the stapling process is switched back by the reverse rotation of the transport roller pair 106 to the transport path 105 for executing the saddle stitching process. The method of joining is adopted.

  By the way, in the saddle stitching process in the sheet post-processing apparatus, there is a restriction on the number of sheets that can be saddle-stitched as a restriction on the apparatus. Conventionally, when image data exceeding the limit of the number of sheets that can be saddle-stitched is input, an image is controlled so that the sheet is not conveyed to the saddle-stitch processing unit by automatically changing the discharge destination of the sheet post-processing apparatus. A processing apparatus has also been proposed (see Patent Document 2).

JP 2010-168134 A JP 2002-331730 A

  However, when image data exceeding the limit on the number of sheets that can be saddle stitched is input using the post-processing apparatus having the configuration shown in FIG. 23, the user can automatically switch the paper discharge destination from the saddle stitching processing tray to the stacking tray. There is a problem that the intended product cannot be obtained.

  In addition, even if the product is not the intended product, when only the paper discharge to the stacking tray is completed and the post-processing is performed offline, the image formation is executed in the same image forming order as that for discharging to the saddle stitch processing tray. The user needs to manually change the order of the deliverables. Therefore, it is very troublesome.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the object thereof is optimal according to the paper discharge destination even when the saddle stitching process is canceled when image data exceeding the limit of the number of sheets that can be saddle stitched is input. It is to provide an image forming apparatus (printing apparatus) capable of obtaining a product with a satisfactory image layout.

  In order to achieve the above object, a printing apparatus of the present invention is a post-processing apparatus having a first tray, a second tray, and saddle stitching means, without reversing the paper conveyed from the printing apparatus. It is possible to discharge the sheet onto the first tray, and invert the sheet conveyed from the printing apparatus, and execute the saddle stitching process on the inverted sheet using the saddle stitching unit, A printing apparatus connectable to a post-processing apparatus capable of discharging a sheet on which a saddle stitching process has been performed to the second tray, the printing unit printing an image on the sheet, and the image by the printing unit And an operation unit for receiving the setting for executing the saddle stitching process on the sheet to be printed, and a control unit, and the control unit receives the setting via the operation unit; For per part If the number of sheets does not exceed the number of sheets that can be subjected to the saddle stitching process, printing is performed on the sheets used as the text among the sheets, and then printing is performed on the sheets used as the cover The printing means is controlled as described above, and the saddle stitching process is performed on a sheet including a sheet used as the body and a sheet used as the cover, and then the sheet is discharged to the second tray. When the post-processing device is controlled and the setting is received via the operation unit, the number of sheets per copy exceeds the number of sheets that can be subjected to the saddle stitching process, and the selection displayed on the display unit When the first selection is made via the screen, the printing is performed on the sheet used as the cover of the sheets, and then the printing is performed on the sheet used as the text. Means Controlling the post-processing apparatus so that the sheet including the cover and the text is discharged to the first tray without executing the saddle stitching process, and the setting is performed through the operation unit Is received, the number of sheets used for printing per copy exceeds the number of sheets that can be subjected to the saddle stitching process, and the second selection is made via the selection screen displayed on the display unit. If it is, printing by the printing unit is stopped.

  According to the present invention, when the limit of the number of saddle-stitchable sheets is exceeded, it is possible to flexibly select the user's intention. In addition, a product with an optimal image layout can be obtained in both cases where only the binding process is canceled and when both the binding process and the folding process are canceled, so that convenience for the user is improved.

FIG. 1 is a view showing a schematic configuration of an image forming apparatus (printing apparatus) according to an embodiment of the present invention. It is a figure which shows schematic structure of the finisher in FIG. (A) The figure which shows the internal structure of the finisher in the state by which the recording paper S was clamped by the conveyance roller, (b) The internal structure of the finisher in the state by which the front-end | tip of the recording paper was abutted against the nip of the skew correction roller FIG. (A) A diagram showing the internal structure of the finisher in a state where the leading edge of the recording paper is abutted against the stopper, (b) An internal structure of the finisher in which the recording paper bundle bound by the stapler has moved downstream in the transport direction FIG. FIG. 6 is a view showing an internal structure of the finisher in a state in which the recording paper bundle is discharged to the saddle stitching process tray by the bundle conveyance roller pair. 2 is a block diagram illustrating a hardware configuration example of a controller in the image forming apparatus. FIG. It is a figure which shows the external appearance of an operation part. (A) A figure which shows an example of the standard screen (initial screen) displayed on a display part, (b) It is a figure which shows an example of the display screen displayed when an "application mode" button is pressed. (A) A diagram showing an example of a display screen for setting the bookbinding process, and (b) a diagram showing an example of a display screen for setting the bookbinding to left opening or right opening. (A) A diagram showing an example of a display screen for setting a paper size of a body of a book, (b) A diagram showing an example of a display screen for setting the finish of bookbinding processing. (A) A figure showing an example of a display screen displayed after setting of bookbinding processing, a figure showing an example of a standard screen (b) after setting. It is a figure which shows an example of the error pop-up displayed on a display part at the time of interruption of a job. FIG. 14 is a diagram for describing a layout method of pages of a document image in the case of performing left-handed bookbinding layout processing and discharging the document onto a stacking tray. FIG. 14 is a diagram for describing a layout method of pages of a document image in the case of performing left-open saddle stitching and discharging the sheet to the saddle stitching tray. FIG. 14 is a diagram for describing a layout method of pages of a document image when a left-opened center-folding process is performed to be discharged onto a saddle-stitch processing tray. FIG. 14 is a diagram for describing a layout method of pages of a document image when a left-opened center-folding process is performed to be discharged onto a saddle-stitch processing tray. (A) A figure showing an example of a display screen for setting a cover, (b) It is a figure showing an example of a display screen for selecting a sheet of a cover. FIG. 14 is a diagram for describing a layout method of pages of a document image in the case of performing bookbinding layout processing for attaching a cover to a left-handed bookbinding and discharging the document onto a stacking tray. FIG. 14 is a diagram for describing a layout method of pages of a document image in the case where a saddle-stitching process of attaching a cover to a left-handed bookbinding is performed and discharged to a saddle-stitching processing tray. FIG. 14 is a diagram for describing a layout method of each page of a document image in the case where a cover is attached to the left-handed bookbinding and a middle-folding process is performed to discharge the sheet to the saddle stitching process tray. FIG. 14 is a diagram for describing a layout method of each page of a document image in the case where a cover is attached to the left-handed bookbinding and a middle-folding process is performed to discharge the sheet to the saddle stitching process tray. It is a flowchart which shows the bookbinding process by CPU. It is a flowchart which shows the bookbinding process by CPU. It is a flowchart which shows the bookbinding process by CPU. It is a figure which shows schematic structure of the conventional finisher.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a schematic configuration of an image forming apparatus (printing apparatus) according to an embodiment of the present invention.

  In the present embodiment, as an image forming apparatus, a multifunction peripheral having a plurality of functions such as a copy, a printer, and a facsimile will be described as an example. Note that the image forming apparatus may be a single-function apparatus as well as a multifunction peripheral.

  In FIG. 1, the image forming apparatus includes a scanner unit 301, a document feeder (DF) 302, a printer unit 313 having a color four-color drum, a paper feed deck 314, and a finisher 315.

  First, a reading operation performed mainly by the scanner unit 301 will be described.

  When the document is set on the document table and the reading operation is performed, the user sets the document on the document table 307 and closes the DF 302. When the open / close sensor detects that the DF 302 is closed, a reflective document size detection sensor (not shown) in the housing of the scanner unit 301 detects the set document size. When the document size is detected, light is emitted from the light source 310 to the document, and the reflected light is incident on the CCD 343 via the reflecting plate 311 and the lens 312. The CCD 343 converts the incident light into a digital signal and sends it to the controller (see FIG. 6). The controller performs desired image processing on the sent digital signal, converts it into a laser recording signal, and stores it in the memory as image data.

  When a document is set on the DF 302 and a reading operation is performed, the user places the document face up on the tray of the document setting unit 303 of the DF 302. When the original is placed, the original presence / absence detection sensor 304 detects the original. When the controller receives the detection result of the document from the document presence / absence detection sensor 304, the controller rotates the document feeding roller 305 and the conveyance belt 306 to convey the document to a predetermined position on the document table 307. When the document is conveyed to a predetermined position, the controller performs a reading operation similar to the reading operation on the document table described above, and stores the image data in a memory (not shown). Then, the document on which the reading operation is completed is discharged to the document discharge tray 309 via the conveyance roller 308.

  When there are a plurality of documents set on the DF 302, the controller discharges the document for which the reading operation has been completed, and simultaneously feeds the next document via the document feed roller 305, and Read operation is performed. In this way, a plurality of document reading operations are performed.

  Next, a printing operation performed by the printer unit 313 will be described.

  The image data once stored in the memory in the controller is transferred to the printer unit 313 and converted into recording laser light for each color of Yellow, Magenta, Cyan, and Black by the laser recording unit. Then, the recording laser light is irradiated to the photosensitive member 316 of each color to form an electrostatic latent image on the photosensitive member 316. Then, toner development is performed by the toner supplied from the toner cartridge 317, and the visualized image is primarily transferred to the intermediate transfer belt 321. Thereafter, the intermediate transfer belt 321 rotates in the clockwise direction, and when the recording sheet fed from the sheet cassette 318 or the sheet feeding deck 314 through the sheet feeding conveyance path 319 comes to the secondary transfer position 320, the intermediate transfer is performed. The image is transferred from the belt 321 to the recording paper. The toner is fixed on the recording sheet on which the image has been transferred by pressure and heat in a fixing unit 322, and the recording sheet is conveyed through a sheet discharge conveyance path. Then, the recording sheet is discharged to the discharge port 325 to the finisher.

  In the case of double-sided printing, after passing through the fixing unit 322, the flapper 327 switches the conveyance path, and then the recording paper is switched back and sent downward, passes through the both-side printing sheet conveyance path 330 and the secondary transfer position 320 again. The two-sided printing operation is realized.

  Next, operations performed by the finisher 315 will be described.

  The finisher 315 performs post-processing on the recording paper according to the setting designated by the user. Specifically, it has functions such as stapling (1 and 2 binding), punching (2 and 3 and 4 holes), and saddle stitching. The configuration and operation of the finisher 315 will be described with reference to FIGS.

  In FIG. 2, the finisher 315 includes conveying rollers 31 to 39, leading edge detection sensors 50 and 53, a trailing edge detection sensor 48, a stapler 42, a thrust plate 43, a stopper 44, folding rollers 45 and 46, A bundle conveying roller pair 47 is provided.

  The finisher 315 may operate by a command from the controller of the image forming apparatus of FIG. 1 or may operate by a unique controller.

  For the recording paper that has passed through the paper discharge port 325 on the image forming apparatus side, the paper discharge destination is sorted according to, for example, the copy, printer, and FAX functions according to the user settings. When used as a printer, various drivers such as black and white print / color print, paper size, 2 UP, 4 UP print, N-UP print, both sides, staple, punch, saddle stitching, center fold, interleaf, cover, back cover etc. Setting is possible.

  The recording sheet conveyed from the image forming apparatus is discharged to any one of the stacking trays 328 and 329 and the saddle stitching processing tray 331 in accordance with the type of finishing processing set by the user. For example, when the finishing process is not executed, the recording paper is discharged to the stacking tray 328. When the normal stapling process is executed, the sheet is discharged to the stacking tray 329, and when the saddle stitching process or the middle folding process described later is executed, the sheet is discharged to the saddle stitching process tray 331.

  Further, the recording paper conveyed from the image forming apparatus is conveyed by the conveyance rollers 31, 37, 38 until the trailing end of the recording paper comes to the trailing end detection sensor 48. When the trailing edge of the recording sheet is detected by the trailing edge detection sensor 48, the conveyance rollers 37 and 38 holding the recording sheet are stopped (see FIG. 3A).

  Next, the recording paper is switched back by reverse rotation of the conveyance rollers 37 and 38, and the conveyance roller 36 conveys the leading end of the recording paper until it reaches the leading end detection sensor 50. When the leading edge detection sensor 50 detects the leading edge of the recording sheet, the conveyance roller 36 that holds the recording sheet decelerates, and the leading edge of the recording sheet abuts against the nip of the skew correction roller 51 (FIG. 3). (See (b)).

  Even after the leading edge of the recording sheet abuts against the nip of the skew correction roller 51, the transport roller 36 continues rotating for a while. Then, after the recording paper forms a loop in the loop space, the transport roller 36 stops.

  Next, the skew feeding correction roller 51 starts to rotate. When the recording paper is skewed, the skew is corrected by the skew correction roller 51. Then, the recording sheet whose skew has been corrected is conveyed in the direction of the conveyance roller 39. When the leading edge of the recording sheet is detected by the leading edge detection sensor 53, the recording sheet is conveyed by a predetermined amount from that point, and the leading edge of the recording sheet is abutted against the stopper 44 (see FIG. 4A). At this time, as shown in FIG. 4A, the recording sheet is positioned by the stopper 44 so that the binding position by the stapler 42 comes to the center of the recording sheet. By repeating the above operation, a plurality of recording sheets are sequentially conveyed into the conveyance path 41.

  Then, when all the recording sheets constituting the bookbinding are conveyed into the conveyance path 41, the recording sheets are aligned in the width direction by the width direction aligning plate (not shown), and the recording sheet bundle is conveyed in the conveyance path 41. Form. At this time, the recording paper conveyed into the conveyance path 41 is sequentially conveyed from the recording paper corresponding to the inside of the text of the bound product, and conveyed so that the recording paper corresponding to the cover of the bound product comes last.

  When the saddle stitching process is set, the stapler 42 performs the stitching process on the bundle of recording paper. When the bundle of recording paper is bound by the stapler 42, the stopper 44 supporting the bundle of recording paper is moved downstream in the transport direction. Accordingly, the recording paper bundle moves downstream in the transport direction (see FIG. 4B).

  The stopper 44 positions the recording paper bundle so that the center portion of the recording paper bundle is at the position of the push plate 43. Then, the front end of the push plate 43 abuts against the portion of the recording paper bundle positioned by the stopper 44 where the crease is formed, and the recording paper bundle is pushed into the nip of the folding rollers 45 and 46 to make a crease in the recording paper bundle. Form. Then, the recording paper bundle in which the folds are formed by the folding rollers 45 and 46 is discharged to the saddle stitching processing tray 331 by the bundle conveying roller pair 47 (see FIG. 5).

  Next, the hardware configuration of the controller in the image forming apparatus will be described with reference to FIG.

  In FIG. 6, the main controller 401 mainly includes a CPU 402, a bus controller 403, and various I / F controller circuits (not shown).

  The CPU 402 and the bus controller 403 control the operation of the entire device, and the CPU 402 operates based on a program read from the ROM 404 via the ROM_I / F 405. Further, an operation of interpreting PDL (Page Description Language) code data received from an external PC (not shown) and expanding it into raster image data is also described in this program and processed by software.

  The bus controller 403 controls data transfer input / output from each I / F, and performs bus arbitration and DMA data transfer control.

  The DRAM 406 is connected to the main controller 401 by the DRAM_I / F 407, and is used as a work area for the CPU 402 to operate or an area for storing image data.

  A codec (Codec) 408 compresses raster image data stored in the DRAM 406 according to a method such as MH / MR / MMR / JBIG / JPEG, and conversely expands the compressed and stored code data into raster image data.

  The SRAM 409 is used as a temporary work area of the codec 408. The codec 408 is connected to the main controller 401 via the I / F 410. Data transfer between the codec 408 and the DRAM 406 is controlled by the bus controller 403 and DMA transferred.

  The graphic processor (Graphic) 424 performs image rotation, image scaling, color space conversion, and binarization processing on the raster image data stored in the DRAM 406.

  The SRAM 425 is used as a temporary work area for the graphic processor 424. The graphic processor 424 is connected to the main controller 401 via the I / F. Data transfer between the graphic processor 424 and the DRAM 406 is controlled by the bus controller 403 and DMA transferred.

  The network controller 411 is connected to the main controller 401 by the I / F 413, and connected to the external network by the connector 412. The network is generally Ethernet (registered trademark). Print data received from an external PC is received and controlled by the network controller 411 and sent to the CPU 402. The CPU 402 stores the sent print data in the DRAM 406 or the HD 440 and processes it.

  An expansion connector 414 and an I / O control unit 416 are connected to the general-purpose high-speed bus 415. In the present embodiment, transmission and reception of commands with the finisher 315 are performed through the general-purpose high-speed bus 415.

  The I / O control unit 416 is equipped with two channels of an asynchronous serial communication controller 417 for transmitting and receiving control commands to and from the CPUs of the scanner unit 301 and the printer unit 313. The I / O control unit 416 is connected to the scanner I / F 426 and the printer I / F 430 by an I / O bus 418.

  The panel I / F 421 is connected to the LCD controller 420, and has an I / F for displaying on the liquid crystal screen on the operation unit 501 shown in FIG. 7 and a key input I / I for inputting hardware keys and touch panel keys. F.

  The operation unit 501 illustrated in FIG. 7 includes a liquid crystal display unit, a touch panel input device attached on the liquid crystal display unit, and a plurality of hard keys. A signal input by the touch panel or the hard key is transmitted to the CPU 402 via the panel I / F 421 described above. The liquid crystal display unit displays the image data sent from the panel I / F 421. The liquid crystal display unit displays function display, image data, and the like in the operation of the image forming apparatus. Details of the operation unit 501 will be described later.

  The real time clock module 422 is for updating / saving the date and time managed in the device, and is backed up by the backup battery 423.

  The E-IDE_I / F 439 is for connecting an external storage device. In the present embodiment, the CPU 402 is connected to a hard disk drive (HD drive) 438 via the E-IDE_I / F 439, and stores image data in the HD 440 or reads out image data from the HD 440. The connectors 427 and 432 are connected to the scanner unit 301 and the printer unit 313, respectively, and are configured of tuning step synchronization serial I / F 428 and 433 and video I / F 429 and 434.

  The scanner I / F 426 is connected to the scanner unit 301 via a connector 427 and is connected to the main controller 401 via a scanner bus 441 and has a function of performing predetermined processing on an image received from the scanner unit 301. Have. Further, the scanner I / F 426 has a function of outputting a control signal generated based on the video control signal transmitted from the scanner unit 301 to the scanner bus 441. Data transfer from the scanner bus 441 to the DRAM 406 is controlled by the bus controller 403.

  The printer I / F 430 is connected to the printer unit 313 via the connector 432, and is connected to the main controller 401 by the printer bus 431. The printer I / F 430 has a function of performing predetermined processing on image data output from the main controller 401 and outputting the image data to the printer unit 313. Further, the printer I / F 430 also has a function of outputting a control signal generated based on the video control signal sent from the printer unit 313 to the printer bus 431. Transfer of raster image data developed on the DRAM 406 to the printer unit 313 is controlled by the bus controller 403, and is DMA-transferred to the printer unit 313 via the printer bus 431 and the video I / F 434.

  The SRAM 436 is a memory configured to retain stored contents even when the entire apparatus is powered off by the power supplied from the backup battery, and is connected to the I / O control unit via the bus 435. . The EEPROM 437 is also a memory connected to the I / O control unit via the bus 435.

  Next, the operation unit 501 will be described with reference to FIG.

  The user performs various print settings via the operation unit 501. The reset key 502 is a key for canceling setting values and the like set by the user. The stop key 503 is a key for interrupting the active job. A ten key 504 is a key for inputting numerical values such as numerical values.

  The display unit 505 includes a touch panel and a liquid crystal display unit that are integrated, and displays various screens on the liquid crystal display unit based on instructions from the CPU 402 or receives instructions from the user via the touch panel. A start key 506 is a key for starting a job such as reading a document. A clear key 507 is a key for clearing settings and the like. The lamp 508 notifies the user of the state of the apparatus by turning on when the job is being executed or when an error occurs in the image forming apparatus or the finisher 315.

  Next, a screen displayed on the display unit 505 of the operation unit 501 will be described using FIGS. 8A to 12.

  FIG. 8A shows an example of a standard screen (initial screen) displayed on the display unit 505. As shown in FIG.

  The tab displayed at the top of the screen is a tab for selecting various functions that can be executed by the image forming apparatus. From left to right, the copy function (simple), copy function (quick), send / fax function, and box function are shown.

  The copy function (simple) 801 and the copy function (quick) 802 print the image data of the document read by the scanner unit 301 by the printer unit 313, and perform finishing processing such as stapling and saddle stitching as required. It is a function. The user can set the copy function while the copy function (simple) 801 or the copy function (quick) 802 is selected. The copy function (quick) 802 is a function capable of setting more settings than the copy function (simple) 801 on one screen.

  The transmission / fax function 803 is a transmission function such as FAX transmission, E-mail transmission, transmission to a file server, and the like.

  A box function 804 is a function for storing image data read by the scanner unit 301 in the HD 440, or a function for operating and printing data stored in the HD 440.

  When a tab of each function is selected, a screen on which detailed settings can be made is displayed. The screen shown in FIG. 8A is a copy setting screen in a state where the copy function (simple) 801 is selected, and accepts various settings related to copying from the user. In the copy setting screen shown in FIG. 8A, for example, a button for selecting color / monochrome / automatic, a button for designating single side / double side, a button for designating copy magnification, finishing processing The button etc. for doing are included. There are two types of buttons for finishing processing. The first type is a "finish" button 805. A “finish” button 805 is a button for displaying a screen for accepting a setting for executing a stapling process in which the edge of the recording sheet is bound by a stapler. The second type is an “application mode” button 806. An “application mode” button 806 is a button for displaying a screen for receiving settings for performing finishing processing such as saddle stitching processing and center folding processing by the finisher 315 connected to the image forming apparatus.

  When the user wants to obtain a bookbinding product that has undergone saddle stitching processing or half-folding processing, the image forming apparatus and finisher 315 are caused to execute the bookbinding processing, and FIG. 8 (a) to FIG. 11 (b). Settings are made via the screen shown. In the present embodiment, the bookbinding process includes a saddle stitching process for performing saddle stitching on a recording sheet and a half-folding process for folding a recording sheet.

  When the setting for executing the bookbinding process is performed by the user, the image forming apparatus generates an image in which the page to be printed is laid out based on the setting, and executes printing in accordance with the generated image. Then, the finisher 315 performs an appropriate finishing process based on the setting.

  First, the user presses an “applied mode” button 806 on the screen shown in FIG. When the “applied mode” button 806 is pressed, the screen shown in FIG. 8B is displayed on the display unit 505. Then, when the “bookbinding” button 807 of the screen shown in FIG. 8B is pressed, a screen for setting the bookbinding process as shown in FIG. 9A is displayed. The user designates the size of the document to be read by the scanner unit 301 via the screen shown in FIG. 9A. In the example shown in FIG. 9A, an A4 size document is designated as the document size. Then, when the “next” button 901 shown in FIG. 9A is pressed, the screen shown in FIG. 9B is displayed. The user sets whether the bookbinding is left-opened or right-opened through the screen of FIG. 9B. Then, when the “Next” button on the screen of FIG. 9B is pressed, the screen shown in FIG. 10A is displayed. The user selects the paper size of the bound text through the screen shown in FIG. Also, the user can set whether or not to add a cover to the book-bound product through the screen of FIG. The function of attaching a cover to a bookbinding product will be described later.

  When the “next” button 1001 is pressed on the screen shown in FIG. 10A, the screen shown in FIG. 10B is displayed. The screen shown in FIG. 10B is a screen for setting the finished product. The bookbinding finish has the following three forms.

Form 1: Saddle Stitching (perform saddle stitching)
Form 2: Saddle folding (performs center folding)
Mode 3: Do not tie the binding (Perform bookbinding layout processing)
In the case of mode 1, the recording sheet printed by the image forming apparatus is conveyed to the finisher 315 and is accumulated by the stopper 44 in the position shown in FIG. 4A inside the finisher 315. Then, when a predetermined number of printed recording sheets are aligned, the stapler 42 staples the center of the recording sheet. Thereafter, the recording sheet subjected to the binding process is folded in two by the butting plate 43 and the folding rollers 45 and 46, conveyed by the bundle conveying roller pair 47, and discharged onto the saddle stitching process tray 331. Ru.

  In the case of mode 2, the recording sheet printed by the image forming apparatus is conveyed to the finisher 315, and is stored at the position shown in FIG. 4A inside the finisher 315. Then, when a predetermined number of printed recording sheets are aligned, a folding process of folding the recording sheet into two by the butt plate 43 and the folding rollers 45 and 46 is performed, and the sheet is conveyed by the bundle conveying roller pair 47 and the saddle stitching processing tray 331 The paper is discharged. In this case, the binding process is not executed.

  In the case of mode 3, the page image is arranged in the layout for bookbinding, but the sheet is discharged without performing the binding process and the folding process. In this case, the sheet is discharged to the stacking tray 328 instead of the saddle stitching processing tray 331.

  When the finish of the bookbinding product is set on the screen shown in FIG. 10B and the “OK” button 1002 is pressed, the screen shown in FIG. 11A is displayed. The CPU 402 holds the setting accepted through the screens shown in FIGS. 9A to 10B in the DRAM 406. Then, when displaying the screen shown in FIG. 11A, the CPU 402 displays on the screen that the setting of bookbinding is made. Then, when the “close” button 1101 is pressed on the screen shown in FIG. 11 (a), the CPU 402 displays the screen shown in FIG. 11 (b).

  When the start key 506 is pressed while the screen shown in FIG. 11B is displayed, the CPU 402 performs a document reading operation by the scanner unit 301 and a printing operation by the printer unit 313 according to the settings stored in the DRAM 406. Start.

  By performing the above-described operation, the user can obtain a bound product on which the saddle stitching process and the center folding process have been performed.

  However, the number of sheets of recording paper that can be processed at one time has an upper limit depending on the ability of the finisher 315 (the ability to bind the recording paper and the ability to fold the recording paper). For example, the folding rollers 45 and 46 can fold only 25 recording sheets at a time. Therefore, in the present embodiment, when the number of recording sheets necessary for printing an image in the saddle stitching process exceeds 25, the CPU 402 interrupts the job process and displays an error popup shown in FIG. indicate.

  FIG. 12 is a view showing an example of an error pop-up displayed on the display unit 505 when the job is interrupted.

  The error popup shown in FIG. 12 accepts an operation after the number of recording sheets necessary for printing an image in the saddle stitching process exceeds 25 sheets from the user. The error pop-up shown in FIG. 12 includes a “stop” button 1201, a “discharge to processing tray” button 1202, and a “discharge to stacking tray” button 1203. The “cancel” button 1201 is a button for forcibly ending the job. A “discharge to processing tray” button 1202 is a button for performing center-folding and discharging to the saddle-stitching processing tray 331 without executing only binding processing. The “discharge to stacking tray” button 1203 is a button for executing bookbinding layout processing and discharging the recording paper to the stacking tray 328 without executing binding processing and folding processing for each recording sheet.

  Further, even when the center folding process is performed, since the folding rollers 45 and 46 can fold only 25 sheets of the recording sheet at one time, when exceeding the upper limit of the number of recording sheets that can be processed at one time, Job processing is interrupted. When the center folding process is performed, the folded recording sheet is conveyed by the bundle conveying roller pair 47 without being bound. Therefore, there is a possibility that the recording paper being conveyed is misaligned, which causes a jam. Therefore, in the present embodiment, when the CPU 402 executes the center folding process on the recording sheet, the center sheet processing is performed on the recording sheet every five sheets, even if it can be folded up to 25 sheets at a time by the ability of the finisher 315 And eject it. As a result, the recording sheet to be folded can be stably transported, and the possibility of jamming can be reduced.

  Next, an image layout and a printing result when a bookbinding layout process is executed and discharged onto the stacking tray 328, and when a saddle stitching process or a middle folding process is executed and discharged onto the saddle stitching process tray 331, FIG. 13, FIG. 14, FIG. 15, and FIG.

  FIGS. 13A and 13B are diagrams for explaining the layout method of each page of the document image in the case where the left-handed bookbinding layout processing is performed and the sheet is discharged to the stacking tray 328. FIG.

  When paper is discharged to the stacking tray 328, the image of each page of the document indicated by 1301 is laid out and held on the DRAM 406 as indicated by 1302. Then, when the layout is completed, the image of the sheet corresponding to the outer side of the bookbinding is printed in order of the image of the sheet corresponding to the inner side of the bookbinding. When the layout of the image after layout is as shown in FIG. 13A, the CPU 402 causes the first surface, the first surface, the second surface, the second surface, the second surface, and the third surface. Print in the order of the back of the third sheet. Then, the printed recording paper is discharged onto the stacking tray 328 by the transport rollers 31 to 35. Then, the discharged print result is as shown in FIG.

  FIGS. 14A and 14B are diagrams for explaining a layout method of each page of a document image when left-spacing saddle stitching processing is executed and discharged to the saddle stitching processing tray 331. FIG. .

When the sheet is discharged to the saddle stitching processing tray 331 in the saddle stitching process, the image of each page of the document shown in 1301 is laid out and held on the DRAM 406 as shown in 1402. Then, when the layout is completed, the image of the sheet corresponding to the inside of the bound product is printed in order of the image of the sheet corresponding to the outside of the bound product. When the layout of the image after layout is as shown in FIG. 14A, the CPU 402 causes the first surface, the first surface, the second surface, the second surface, the second surface, and the third surface. , Print in the order of the back of the third sheet. Then, after the printed recording sheet is conveyed by the conveyance rollers 31, 37, 38 until the trailing edge of the recording sheet comes to the trailing edge detection sensor 48, the recording paper is switched back by reverse rotation of the conveyance rollers 37, 38. And sequentially accumulate in the transport path 41 (FIG. 14 (b)). Then, after executing the binding process, the folding process is executed and the sheet is discharged onto the saddle stitching processing tray 331. The print result discharged is as shown in FIG.

  On the other hand, the user can press the “saddle fold” button 1003 on the screen shown in FIG. 10B to perform the folding process function of performing only the folding process and discharging the sheet without performing the binding process. You can choose.

  FIGS. 15, 16A, and 16B are diagrams for explaining a layout method of each page of a document image when left-folding half-folding processing is performed and discharged to the saddle stitching processing tray 331. FIG. FIG.

  When the sheet is discharged onto the saddle-stitching processing tray 331 in the center folding process, the image of each page of the document indicated by 1001 is laid out and held as indicated by 1002 on the DRAM 406. Then, when the layout is completed, the image of the sheet corresponding to the inside of the bound product is printed in order of the image of the sheet corresponding to the outside of the bound product. When the layout of the image after layout is as shown in FIG. 15, the CPU 402 displays the first front, the first rear, the second front, the second rear, the third front, and the third front. Print in the order of the back of the eyes. Then, after the printed recording sheet is conveyed by the conveyance rollers 31, 37, 38 until the trailing edge of the recording sheet comes to the trailing edge detection sensor 48, the recording paper is switched back by reverse rotation of the conveyance rollers 37, 38. Then, they are sequentially accumulated in the transport path 41 (FIG. 16A). Then, when the number of recording sheets included in one copy exceeds five, the folding process is performed every five sheets, and the five sheets are discharged onto the saddle stitching processing tray 331. The discharged printing result is as shown in FIG. The user can obtain a bookbinding product by combining a bundle of recording sheets so that the bundle of recording sheets discharged first is sandwiched in the center of the bundle of recording sheets discharged later.

  On the other hand, the user presses the "cover" button 1004 on the screen shown in FIG. 10A when setting the bookbinding process using FIG. 8B to FIG. You can use the function of attaching a cover to a book. For example, when the “Next” button 1001 on the screen of FIG. 10A is pressed while the “Apply cover” button 1004 is selected, the screen shown in FIG. 17A is displayed. The user can set on which side of the cover the image is to be printed by the screen shown in FIG. Here, the setting of “copy” or “do not copy” is accepted for each of the front cover, the back cover, the back cover front, and the back cover back. Then, when the “next” button 1701 on the screen of FIG. 17A is pressed, the screen shown in FIG. 17B is displayed. The user selects the paper size of the bookbinding cover via the screen shown in FIG. Then, when the “next” button 1702 is pressed on the screen shown in FIG. 17B, the screen shown in FIG. 10B is displayed.

  18A and 18B illustrate the layout method of each page of the document image in the case of performing bookbinding layout processing for attaching a cover to a left-handed bookbinding and discharging the document to the stacking tray 328. FIG.

  When paper is discharged to the stacking tray 328, the image of each page of the document indicated by 1801 is laid out and held on the DRAM 406 as indicated by 1802. Then, when the layout is completed, printing is performed in order from the image of the sheet corresponding to the front cover of the bound product to the image of the sheet corresponding to the main text of the bound product. When the layout of the image after layout is as shown in FIG. 18A, the CPU 402 first prints the first sheet (cover). Then, the CPU 402 displays a second front (body), a second back (body), a third front (body), a third back (body), a fourth front (body), Print in the order of the back (text) of the fourth page. Then, the printed recording paper is discharged onto the stacking tray 328 by the transport rollers 31 to 35. Then, the discharged printing result is as shown in FIG.

  FIGS. 19A, 19B, and 19C are diagrams illustrating original images when a saddle stitching process for attaching a cover to a left-open booklet is performed and discharged to the saddle stitching processing tray 331. FIG. It is a figure for demonstrating the layout method of a page.

  When the sheet is discharged to the saddle stitching processing tray 331 in the saddle stitching process, the image of each page of the document shown in 1801 is laid out and held on the DRAM 406 as shown in 1902. Then, when the layout is completed, printing is performed in order from the image of the sheet corresponding to the body of the bookbinding to the image of the sheet corresponding to the front cover of the bookbinding. When the layout of the image after layout is as shown in FIG. 19A, the CPU 402 first displays the first surface (text), the first back (text), the second surface (text), The second back (text), the third front (text), and the third back (text) are printed in this order. Then, finally, the CPU 402 prints a fourth sheet (cover). Then, after the printed recording sheet is conveyed by the conveyance rollers 31, 37, 38 until the trailing edge of the recording sheet comes to the trailing edge detection sensor 48, the recording paper is switched back by reverse rotation of the conveyance rollers 37, 38. Then, they are sequentially stored in the transport path 41 (FIG. 19B). Then, after the binding process is performed, the folding process is performed and the sheet is discharged onto the saddle stitching process tray 331. Then, the discharged print result is as shown in FIG.

  In FIGS. 20, 21A, and 21B, the layout of each page of the document image in the case of performing a middle-folding process for putting a cover on a left-handed bookbinding and discharging it to the saddle-stitching processing tray 331 It is a figure for demonstrating a method.

  When paper is discharged to the saddle stitching processing tray 331 in the middle folding process, the image of each page of the document shown in 2001 is laid out and held on the DRAM 406 as shown in 2002. Then, when the layout is completed, printing is performed in order from the image of the sheet corresponding to the body of the bookbinding to the image of the sheet corresponding to the front cover of the bookbinding. In the case where the layout of the image after layout is as shown in FIG. 20, the CPU 402 first displays the first surface (text), the first back (text), the second surface (text), the second The back of the document (text), the third sheet (text), and the third sheet (text) are printed in this order. Then, finally, the CPU 402 prints a tenth sheet (cover). Then, after the printed recording sheet is conveyed by the conveyance rollers 31, 37, 38 until the trailing edge of the recording sheet comes to the trailing edge detection sensor 48, the recording paper is switched back by reverse rotation of the conveyance rollers 37, 38. Then, they are sequentially stored in the transport path 41 (FIG. 21A). When the number of recording sheets included in one copy exceeds 5, the folding process is executed every 5 sheets, and the sheets are discharged to the saddle stitching processing tray 331 every 5 sheets. Then, the printed result discharged is as shown in FIG.

  Next, the flow of bookbinding processing by the CPU 402 in this embodiment will be described using FIGS. 22A, 22B, and 22C. The CPU 402 executes the steps stored in the flowcharts of FIGS. 22A, 22B, and 22C by executing the program stored in the ROM 404.

  First, when the CPU 402 receives a job execution request with the start key 506, the CPU 402 starts the illustrated process. For example, when an execution request for a copy job for printing an image of a document read by the scanner unit 301 is received by the printer unit 313, the CPU 402 lays out and prints the image of the document, and prints the printed recording paper. The processing shown in FIG. Also, when an execution request for a print job for printing an image received from an external PC is printed by the printer unit 313 is received, the CPU 402 lays out and prints the image received from the PC, and the printing sheet is printed. The illustrated process is performed.

  In step S5001, the CPU 402 determines whether or not bookbinding is designated. If it is determined that bookbinding is designated, the CPU 402 advances the process to step S5004. If it determines that bookbinding is not designated, the process advances to step S5002.

  When the process proceeds to step S5002, the CPU 402 determines the discharge destination as the stacking tray 328, and advances the process to step S5003. Then, in step S5003, the CPU 402 executes normal print processing based on settings other than bookbinding processing received from the user. For example, the case where printing is performed by the image forming apparatus and the recording sheet is discharged without executing the post-processing by the finisher 315 corresponds to this.

  On the other hand, when the process proceeds to step S5004, the CPU 402 determines whether saddle stitching is specified. If it is determined that saddle stitching is designated, the CPU 402 advances the process to step S5005, and if it is determined that saddle stitching is not designated, the process advances to step S5045.

  When the process proceeds to step S5045, the CPU 402 determines whether center folding is specified. If it is determined that center folding is specified, the CPU 402 advances the process to step S 5024. If it determines that center folding is not specified, the process advances to step S 5037.

  On the other hand, if saddle stitching is specified, that is, if the process proceeds to step S5005, the CPU 402 calculates the number of output sheets per copy, and advances the process to step S5006. As shown in FIGS. 14 (a) to 14 (c), when an image of two pages is laid out on one page, the number of output sheets per copy is calculated by the formula of (total number of pages + 3) / 4. The

  In step S5006, the CPU 402 determines whether the number of output sheets per copy exceeds the number of sheets that can be saddle stitched in the finisher 315. If it is determined that the saddle-stitchable number is exceeded, the CPU 402 advances the process to step S5018, and if it determines that the saddle-stitchable number is not exceeded, the CPU 402 advances the process to step S5007.

  When the process has proceeded to step S5007, the CPU 402 determines that the paper discharge destination is the saddle stitch processing tray 331, and proceeds to step S5008.

  In step S5008, the CPU 402 determines whether or not it is instructed to attach a cover. If it is determined that the cover is designated, the CPU 402 advances the process to step S5009. If it is determined that the cover is not designated, the process proceeds to step S5010.

  When the process proceeds to step S5009, the CPU 402 performs layout of each page by a method as illustrated in FIGS. 19A to 19C, and the process proceeds to step S5011.

  In step S5011, the CPU 402 performs an image forming process on the sheet corresponding to the text, and advances the process to step S5012.

  In step S5012, the CPU 402 controls the conveyance rollers 37 and 38 to switch back the sheet corresponding to the text, and sequentially stores the sheets in the conveyance path 41.

  In step S5013, the CPU 402 performs an image forming process on the sheet corresponding to the front cover, and advances the process to step S5014.

  In step S <b> 5014, the CPU 402 controls the conveyance rollers 37 and 38 to switch back the sheet corresponding to the front cover, and control the sheet to be accumulated in the conveyance path 41.

  In step S <b> 5015, the CPU 402 executes the binding process on the sheet bundle stored in the conveyance path 41, and then executes the folding process, and performs control to discharge the sheet to the saddle stitching process tray 331. On the other hand, when the process proceeds to step S5010, the CPU 402 performs layout of each page by a method as shown in FIG. 14A to FIG. 14C, and proceeds to step S5016.

  In step S5016, the CPU 402 performs an image forming process on the sheet corresponding to the text, and advances the process to step S5017.

  In step S5017, the CPU 402 switches back the sheet corresponding to the text by the conveyance rollers 37 and 38, and then controls the conveyance path 41 to sequentially store the sheet, and advances the process to step S5015. On the other hand, if the number of output sheets per copy exceeds the number of sheets that can be saddle stitched in the finisher 315, that is, if the processing proceeds to step S5018, the CPU 402 interrupts the processing and displays an error pop-up shown in FIG. Then, the process proceeds to step S5019.

  In step S5019, the CPU 402 determines whether the “cancel” button 1201 of the error pop-up shown in FIG. 12 is pressed. If the CPU 402 determines that the “stop” button 1201 has been pressed, the CPU 402 proceeds to step S5020. If the CPU 402 determines that the “stop” button 1201 has not been pressed, the CPU 402 proceeds to step S5022.

  When the process proceeds to step S5020, the CPU 402 hides the error pop-up illustrated in FIG. 12 and proceeds to step S5021.

  In step S5021, the CPU 402 performs a process of forcibly ending the job, and ends the present process.

  On the other hand, if the processing has proceeded to step S5022, the CPU 402 determines whether or not the “discharge to processing tray” button 1202 of the error popup shown in FIG. 12 has been pressed. If it is determined that the “discharge to processing tray” button 1202 has been pressed, the CPU 402 proceeds to step S5023, and if it is determined that the “discharge to processing tray” button 1202 has not been pressed, The process then proceeds to step S5035.

  When the process proceeds to step S5023, the CPU 402 hides the error pop-up illustrated in FIG. 12, and proceeds to step S5024.

  In step S5024, the CPU 402 determines the discharge destination as the saddle stitching processing tray 331, and advances the process to step S5025.

  In step S5025, the CPU 402 determines whether or not it is instructed to attach a cover. If the CPU 402 determines that a cover is specified, the process proceeds to step S5026. If the CPU 402 determines that a cover is not specified, the process proceeds to step S5027.

  When the process proceeds to step S5026, the CPU 402 performs layout of each page by a method as shown in FIG. 20, FIG. 21 (a), and FIG. 21 (b), and proceeds to step S5028.

  In step S5028, the CPU 402 performs an image forming process on the sheet corresponding to the text, and advances the process to step S5029.

  In step S5029, the CPU 402 controls the conveyance rollers 37 and 38 to switch back the sheets corresponding to the text, and sequentially stores the sheets in the conveyance path 41.

  In step S5030, the CPU 402 performs an image forming process on the sheet corresponding to the front cover, and advances the process to step S5031.

  In step S <b> 5031, the CPU 402 performs control so that the sheet corresponding to the front cover is switched back by the conveyance rollers 37 and 38 and then accumulated in the conveyance path 41.

  In step S <b> 5032, the CPU 402 controls the sheet bundle accumulated in the conveyance path 41 to be subjected to folding processing every five sheets and to be discharged to the saddle stitching processing tray 331. On the other hand, when the process proceeds to step S5027, the CPU 402 performs layout of each page by a method as shown in FIG. 15, FIG. 16 (a), and FIG. 16 (b), and proceeds to step S5033.

  In step S5033, the CPU 402 performs an image forming process on the sheet corresponding to the text, and advances the process to step S5034.

  In step S5034, the CPU 402 controls the conveyance rollers 37 and 38 to switch back the sheet corresponding to the text, and sequentially stores the sheet in the conveyance path 41, and advances the process to step S5032. On the other hand, when the process proceeds to step S5035, the CPU 402 determines whether or not the “discharge to stack tray” button 1203 in the error pop-up shown in FIG. 12 is pressed. If the CPU 402 determines that the “discharge to stacking tray” button 1203 has been pressed, the CPU 402 proceeds to step S5036. If the CPU 402 determines that the “discharge to stacking tray” button 1203 has not been pressed, It returns to the process of step S5019.

  When the process proceeds to step S5036, the CPU 402 hides the error pop-up illustrated in FIG. 12 and proceeds to step S5037.

  In step S5037, the CPU 402 determines the sheet discharge destination as the stacking tray 328, and advances the process to step S5038.

  In step S5038, CPU 402 determines whether or not a cover has been specified. If the CPU 402 determines that the cover is specified, the process proceeds to step S5039. If the CPU 402 determines that the cover is not specified, the process proceeds to step S5040.

  When the process proceeds to step S5039, the CPU 402 performs layout of each page by a method as illustrated in FIGS. 18A and 18B, and proceeds to step S5041.

  In step S5041, the CPU 402 performs an image forming process on the sheet corresponding to the front cover, and advances the process to step S5042.

  In step S5042, the CPU 402 controls to discharge the sheet corresponding to the cover without executing the binding process and the folding process, and the process proceeds to step S5043. In this case, the sheet is discharged to the stacking tray 328 instead of the saddle stitching processing tray 331. On the other hand, when the process proceeds to step S5040, the CPU 402 performs layout of each page by a method as shown in FIGS. 13A and 13B, and proceeds to step S5043.

  In step S5043, the CPU 402 performs an image forming process on the sheet corresponding to the text, and advances the process to step S504.

  In step S504, the CPU 402 controls to discharge the sheet corresponding to the text on the stacking tray 328 without executing the binding process and the folding process.

  As described above, the following effects can be obtained by controlling the order of image formation. That is, when the limit of the number of sheets that can be saddle-stitched by the sheet post-processing device equipped with the switchback mechanism is exceeded, the user wishes to cancel printing, cancel only the binding process, and cancel the binding process and folding process. Options can be made flexible.

  In addition, a product with an optimal image layout can be obtained in both cases where only the binding process is canceled and when both the binding process and the folding process are canceled, so that convenience for the user is improved.

  In the embodiment described above, the case where the number of saddle-stitchable sheets of the finisher 315 is 25 has been described, but the present invention is not limited to these values.

  Further, in the embodiment described above, the case where the folding process is performed every five sheets and the sheet is discharged to the saddle stitching processing tray 331 every five sheets has been described, but the present invention is not limited to these values.

  In the embodiment described above, the layout method of each page of the document image in the case of left-opening the bookbinding has been described, but the invention is not limited to the left-opening.

  The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

315 Finisher 402 CPU
404 ROM
406 DRAM
501 Operation unit

Claims (13)

A post-processing apparatus having a first tray, a second tray, and saddle stitching means, capable of discharging the paper conveyed from the printing apparatus to the first tray without being inverted; and The sheet conveyed from the printing apparatus is reversed, the saddle stitching unit is used to perform the saddle stitching process on the reversed sheet, and the sheet on which the saddle stitching process is performed is placed on the second tray. A printing apparatus connectable to a post-processing apparatus capable of discharging,
Printing means for printing an image on paper;
An operation unit for receiving a setting for causing the saddle stitching process to be performed on a sheet on which an image is printed by the printing unit;
And control means,
The control means
If the number of sheets per set does not exceed the number of sheets that can be subjected to the saddle-stitching process when the setting is accepted via the operation unit, the sheet used as the text of the sheets is selected. Control the printing unit to execute printing on a sheet used as a cover, and performing the printing on the sheet including the sheet used as the text and the sheet used as the cover After performing the saddle stitching process, the post-processing device is controlled to discharge to the second tray,
When the setting is received via the operation unit, the number of sheets per set exceeds the number of sheets that can be subjected to the saddle stitching process, and the first setting screen is displayed on the display unit. If selected, the printing unit is controlled to execute printing on the sheet used as the text after performing printing on the sheet used as the cover among the sheets, and The post-processing apparatus is controlled to discharge the sheet including the cover and the text onto the first tray without executing the saddle stitching process;
When the setting is received via the operation unit, the number of sheets used for printing per set exceeds the number of sheets that can be subjected to the saddle stitching process, and the selection screen displayed on the display unit Stop the printing by the printing unit when the second selection is made via
A printing apparatus characterized by   The printing apparatus according to claim 1, wherein the saddle stitching process includes a stitching process and a folding process.   The printing apparatus according to claim 1, wherein the reversing of the sheets of the post-processing apparatus is performed sheet by sheet. It further comprises reading means for reading an image on a document,
The printing apparatus according to any one of claims 1 to 3, wherein the printing unit prints an image read by the reading unit.   5. The printing apparatus according to claim 4, wherein the control unit calculates the number of sheets of paper per copy based on the number of pages of the image of the document read by the reading unit.   The printing apparatus according to any one of claims 1 to 5, wherein the printing unit can print an image on both sides of a sheet.   When the start of printing is instructed without receiving the setting via the operation unit, the control unit causes the sheet on which the image is printed by the printing unit to be discharged onto the first tray. The printing apparatus according to any one of claims 1 to 6, which controls a processing apparatus.   The printing apparatus according to any one of claims 1 to 7, wherein whether or not an image is to be printed on a sheet used as a cover can be specified.   The printing apparatus according to any one of claims 1 to 8, wherein the first selection is a selection to discharge the sheet onto the first tray.   The printing apparatus according to any one of claims 1 to 9, wherein the second selection is selection to stop printing. When the control unit receives the setting via the operation unit, if the number of sheets per set does not exceed the number of sheets that can be subjected to the saddle stitching process, the control unit as a main body of the sheets After printing the used paper on the inner paper, print on the outer paper,
When the setting is received via the operation unit, the number of sheets per set exceeds the number of sheets that can be subjected to the saddle stitching process, and the number of sheets displayed via the selection screen displayed on the display unit is When 1 is selected, the printing unit is controlled to execute the printing on the inner sheet after the printing on the outer sheet of the sheet used as the text is executed among the sheets. The printing apparatus according to any one of claims 1 to 10, characterized in that: A post-processing apparatus having a first tray, a second tray, and saddle stitching means, capable of discharging the paper conveyed from the printing apparatus to the first tray without being inverted; and The sheet conveyed from the printing apparatus is reversed, the saddle stitching unit is used to perform the saddle stitching process on the reversed sheet, and the sheet on which the saddle stitching process is performed is placed on the second tray. A control method of a printing apparatus connectable to a post-processing apparatus capable of discharging
A printing process for printing an image on paper;
Receiving a setting for causing the saddle stitching process to be performed on a sheet on which an image is printed by the printing step, via an operation unit;
If the number of sheets per set does not exceed the number of sheets that can be subjected to the saddle-stitching process when the setting is accepted via the operation unit, the sheet used as the text of the sheets is selected. Control the printing process to execute printing on a sheet to be used as a cover, and execute the printing on the sheet including the sheet to be used as the text and the sheet to be used as the cover Controlling the post-processing device to discharge to the second tray after performing the saddle stitching process;
When the setting is received via the operation unit, the number of sheets per set exceeds the number of sheets that can be subjected to the saddle stitching process, and the first setting screen is displayed on the display unit. If selected, the printing process is controlled to execute printing on the sheet used as the text after performing printing on the sheet used as the cover among the sheets, and Controlling the post-processing device to discharge the sheet including the cover and the text onto the first tray without executing the saddle stitching process;
When the setting is received via the operation unit, the number of sheets used for printing per set exceeds the number of sheets that can be subjected to the saddle stitching process, and the selection screen displayed on the display unit If the second selection is made via the step of stopping printing by the printing step,
A control method comprising: A post-processing apparatus having a first tray, a second tray, and saddle stitching means, capable of discharging the paper conveyed from the printing apparatus to the first tray without being inverted; and The sheet conveyed from the printing apparatus is reversed, the saddle stitching unit is used to perform the saddle stitching process on the reversed sheet, and the sheet on which the saddle stitching process is performed is placed on the second tray. A program for causing a computer to execute a control method of a printing apparatus connectable to a post-processing apparatus that can be discharged,
The control method is
A printing process for printing an image on paper;
Receiving a setting for causing the saddle stitching process to be performed on a sheet on which an image is printed by the printing step, via an operation unit;
If the number of sheets per set does not exceed the number of sheets that can be subjected to the saddle-stitching process when the setting is accepted via the operation unit, the sheet used as the text of the sheets is selected. Control the printing process to execute printing on a sheet to be used as a cover, and execute the printing on the sheet including the sheet to be used as the text and the sheet to be used as the cover Controlling the post-processing device to discharge to the second tray after performing the saddle stitching process;
When the setting is received via the operation unit, the number of sheets per set exceeds the number of sheets that can be subjected to the saddle stitching process, and the first setting screen is displayed on the display unit. If selected, the printing process is controlled to execute printing on the sheet used as the text after performing printing on the sheet used as the cover among the sheets, and Controlling the post-processing device to discharge the sheet including the cover and the text onto the first tray without executing the saddle stitching process;
When the setting is received via the operation unit, the number of sheets used for printing per copy exceeds the number of sheets that can be subjected to the saddle stitching process, and the selection screen displayed on the display unit If the second selection is made via the step of stopping printing by the printing step,
A program characterized by comprising: