JP2015101038A - Printing system, method for controlling printing system, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a configuration that permits preview displaying for intuitive operation in a printing system for carrying out two-sided printing on a continuous recording medium.SOLUTION: A first preview region that displays a portion of images to be printed on a front side of a recording medium, and a second preview region that displays a portion of the images to be printed on the rear side are split, and when a scroll operation is performed in a printing system for displaying a preview image, the first preview region and the second preview region are scrolled in linkage with each other. This configuration allows a user to carry out intuitive operations.

Description

  The present invention relates to a printing system, a printing system control method, and a program.

  In the commercial printing field, a large amount of printed matter has been printed at once. However, in recent years, there has been an increasing demand for printing a small lot, and development of an ink jet recording apparatus capable of printing a small lot of a photo or a photo book has been promoted.

  In such an ink jet recording apparatus, a plurality of images are printed collectively on a continuous (roll-shaped) recording medium, and then cut with a cutting apparatus to form a cut recording medium, or with a cutting apparatus. I make bookbinding and make photo books.

  By the way, before printing on such a recording medium, it is required to display a preview of a plurality of print images as in the case of printing on a cut recording medium. Further, in such a preview display, it is required to be able to confirm what image is to be printed by an intuitive operation as disclosed in Patent Document 1.

  In Patent Document 1, a plurality of images are previewed on a touch panel screen, and a plurality of screens are scrolled, a printing position is moved, or a preview display is enlarged by touching on the screen. A display device that can be used is disclosed.

JP 2013-106100 A

  However, Patent Document 1 does not consider the preview display in a printing system that performs double-sided printing on a continuous recording medium, and confirms what screen is to be printed by an intuitive operation in such a printing system. The method is not disclosed.

  Therefore, an object of the present invention is to provide a configuration capable of performing a preview display capable of intuitive operation in a printing system capable of duplex printing on a continuous recording medium.

  In order to achieve the above object, a printing system according to the present invention includes a first preview area capable of displaying a part of a plurality of images printed on the front surface of a recording medium, and a plurality of images printed on the back surface. Control means for controlling the display to be displayed on a screen divided into a second preview area in which a part of the image can be displayed, and displayed in the first preview area among the plurality of images to be printed on the front surface. Switching from one image to another image to be printed on the front surface, and from some images displayed in the second preview area among the plurality of images to be printed on the back surface, Switching acceptance means for accepting switching to another image to be printed on the back side, wherein the switching acceptance means accepts the first preview area and the second preview area to be switched in conjunction with each other. It is characterized in that kick.

  Thus, by providing the first preview area and the second preview area so as to be switched in conjunction with each other, in a printing system capable of duplex printing on a continuous recording medium, a preview display capable of intuitive operation is provided. It can be carried out.

1 is a schematic diagram of a printing system according to the present invention. 1 is a block diagram of a printing system according to the present invention. It is a module block diagram of the printing system which concerns on this invention. 6 is a flowchart for explaining a flow when a print job is received. 6 is a flowchart for explaining a flow from reading job data to performing roll paper UI drawing processing. It is a flowchart for demonstrating drawing production | generation processing. 6 is a flowchart for explaining roll paper UI drawing processing; It is a figure which shows a mode that the roll paper UI is drawn. It is the flowchart and figure explaining the process at the time of scrolling. It is a figure which shows a mode that the roll paper UI at the time of scrolling is drawn. 10 is a flowchart for explaining processing when exchanging images on a preview screen. It is a figure explaining the mode at the time of exchanging an image on a preview screen. It is a figure explaining the mode at the time of exchanging an image on a preview screen. It is a flowchart for demonstrating a cooperation process. It is a figure explaining the mode at the time of performing a cooperation process. It is a figure explaining the mode at the time of performing a cooperation process.

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

  FIG. 1 is a schematic diagram of a printing system 100 (also referred to as a recording apparatus) that can perform printing and printing a plurality of images continuously on both sides of a roll of recording paper (hereinafter also referred to as roll paper). is there. In the present embodiment, an ink jet recording apparatus will be described below as an example, but a recording apparatus other than the ink jet system can also be applied. Further, it is applicable not only to roll paper but also to long recording paper.

  In the printing system 100 capable of recording on roll paper, a roll-shaped recording medium 101 before printing is conveyed to the printing unit 106 to perform a recording operation, and is wound as a roll-shaped recording medium 103 after printing. The printing unit 106 includes a front surface printing unit 102 and a back surface printing unit 104, and performs a recording operation on the front surface and the back surface of the recording medium, respectively. Specifically, based on image data input from an external information processing apparatus or the like, the recording operation is performed by driving the recording elements of the front surface printing unit 102 and the back surface printing unit 104 to eject ink.

  Such job information such as image data can be confirmed on the display 105. Specifically, a preview screen to be printed on a recording medium can be confirmed on the display 105 from now on. Further, the display 105 can be provided in a touch panel type, and the printing system 100 gives an instruction to start the recording operation based on the preview screen displayed on the display 105 using such an input terminal. From the operator).

  Next, an example of the hardware configuration of the printing system 100 shown in FIG. 1 will be described with reference to FIG.

  The CPU 201 comprehensively controls each device and controller connected to the system bus.

  Further, the ROM 203 or the external memory 209 is necessary to realize a BIOS (Basic Input / Output System) or an operating system program (hereinafter referred to as OS), which is a control program of the CPU 201, or a function executed by each server or each PC. Various programs to be described later are stored. The RAM 203 functions as a main memory, work area, and the like for the CPU 201.

  The CPU 201 implements various operations by loading a program necessary for execution of processing into the RAM 203 and executing the program.

  The video controller 205 can perform display control on the touch panel display 105 or the like, and the input controller 204 can perform input control of the input terminal 211 on the touch panel display 105 or the like. Note that it is preferable that the input terminal 211 can be input not only from the touch panel display 105 but also from a keyboard or a mouse.

  The memory controller 206 is stored in a hard disk (HD), floppy (registered trademark) disk (FD), or PCMCIA card slot for storing a boot program, browser software, various applications, font data, user files, editing files, various data, and the like. Controls access to an external memory 209 such as a compact flash (registered trademark) memory connected via an adapter.

  A communication I / F controller (communication I / FC) 207 is connected to and communicates with an external device via a network, and executes communication control processing on the network. For example, Internet communication using TCP / IP is possible. Through such a network, the printing system 100 can accept a print instruction such as image data from the outside.

  Furthermore, when print job information such as image data is input from the outside, the CPU 201 can store the print job information in the RAM 203 and further issue a print instruction to the printing unit 106 based on the image data.

  Note that the CPU 201 can perform display on the display 105 by, for example, executing outline font rasterization processing on a display information area in the RAM 203. Further, the CPU 201 enables a user instruction with a mouse cursor (not shown) on the display 105.

  Various programs for realizing the present invention are recorded in the external memory 209 and are executed by the CPU 201 by being loaded into the RAM 203 as necessary. Furthermore, definition files and various information tables used when executing the program are also stored in the external memory 209, which will be described later.

  Next, FIG. 3 is a functional block diagram for explaining functions provided in the printing system according to the present invention. The processing unit 301 includes a job reception unit 302, a drawing image generation unit 303, a UI display processing unit 304, a UI operation processing unit 305, and an image conversion processing unit 306. The storage unit 307 includes a job storage unit 308, an image storage unit 309, and a state storage unit 310. Further, the device control unit 311 is provided with a print control unit 312 and a touch panel control unit 313.

  First, the job receiving unit 302 performs a print instruction job data reception process including image data received from an external information processing apparatus or the like via the communication I / F controller 207. The job data received by the job receiving unit 302 is temporarily stored (stored) in the job storage unit 308.

  Thereafter, the job data stored in the job storage unit 308 is read out, the drawing image generation unit 303 performs image generation processing, and the converted job data is stored in the image storage unit 309. Specifically, the drawing image generation unit 303 performs conversion processing for converting job data from vector data to raster data. When printing is performed, the raster data processed in this way and stored in the image storage unit 309 is sent to the print control unit 312, and a recording operation is performed by instructing the printing unit 106 to perform printing.

  The raster data stored in the image storage unit 309 is processed as display processing raster data by the UI display processing unit 304 and then transferred to the touch panel control unit 313 and displayed on the touch panel display 105 in a roll paper shape. The

  The display processing raster data displayed on the display 105 can update its display state according to a user operation input via the touch panel. For example, when a user touch operation occurs, user operation information such as a scroll amount is transmitted from the touch panel to the UI operation processing unit 305 via the touch panel control unit 313. Then, after processing the raster data stored in the image storage unit 309 based on the user operation information received by the UI operation processing unit 305, the raster data is transferred to the touch panel control unit 313, and the roll paper is displayed on the touch panel type display 105. Displayed.

  The state storage unit 310 is used as an information storage unit for processing raster data based on user operation information received by the UI operation processing unit 305. The state storage unit 310 stores coordinate information, touch flag, touch type, front / back drawing state, page position information, bookbinding setting information, end flag, and the like. When the recording apparatus is activated, “OFF” is stored as an initial value, “none” is stored as a previous touch label, “front surface drawing state” is stored as a front / back surface drawing state, and “OFF” is stored as an end flag.

  Next, a flow in which the printing system 100 receives a print job from an external information processing apparatus or the like via the communication I / F controller 207 or the like will be described with reference to FIG. Such processing is performed by the CPU 201 of the printing system 100.

  In step S401, the job reception unit 302 of the processing unit 301 receives job data transmitted via the communication I / F controller 207 or the like. In step S <b> 402, the job data received by the job receiving unit 302 is stored in the job storage unit 308 of the storage unit 307.

  In this way, job data is stored in the printing system 100.

  Next, a process of drawing on the display 105 using job data stored in the printing system 100 (hereinafter also referred to as a preview display) will be described using the flowcharts of FIGS. Such processing is performed by the CPU 201 of the printing system 100.

  FIG. 5 is a flowchart for explaining a flow from reading job data to actually performing a printing operation.

  In step S501, the job data stored in the job storage unit 308 is read. In step S502, the image conversion processing unit 306 performs conversion processing (RIP processing) for creating raster data using the read vector format job data.

  In step S <b> 503, the raster data generated by the image conversion processing unit 306 is stored in the image storage unit 309. In step S <b> 504, the drawing image generation unit 303 performs a drawing image generation process used for displaying a preview using raster data. In step S <b> 505, the drawing image generation unit 303 performs roll paper UI drawing processing for displaying the drawing image generated in step S <b> 504 on the display 105.

  In step S <b> 506, the print control unit 312 performs print processing on the printing unit 106 so that the raster data generated in step S <b> 502 follows the preview display. Specifically, the job processing unit 303 transmits raster data to the print control unit 312. At this time, job attribute information indicating whether to print on the front side or the back side is also transmitted to the print control unit 312. Thus, the print control unit 312 that has received the raster data job information performs print processing on the roll paper.

  FIG. 6 is a flowchart for explaining the drawing generation process in step S504 of FIG.

  In step S601, the drawing image generation unit 303 acquires job attribute information from the job data stored in the job storage unit 308. As the job attribute information, information on which front side printing is to be performed and the front side printing corresponding to the front side printing is stored.

  In step S602, the drawing image generation unit 303 acquires the raster data stored in the image storage unit 309 in step S503. In step S603, the drawing image generation unit 303 performs processing for converting raster data into display image data using the job attribute information acquired in step S601.

  In step S604, it is determined whether the raster data drawn in step S602 is to be printed on the front side or the back side.

  The raster data determined to be printed on the front surface in step S604 is stored in the front image storage unit in the image storage unit 307 by the job processing unit 303 in step S605.

  The raster data determined to be printed on the back side in step S604 is stored in the back side image storage unit in the image storage unit 307 by the job processing unit 303 in step S606.

  Such a series of processing shown in FIG. 6 is performed for each piece of image data, and is repeated until the job processing for one roll paper included in the job data is completed. If it is determined that the job processing for one roll paper has been performed, the process proceeds to the roll paper UI drawing processing in step S506.

  FIG. 7 is a flowchart for explaining the roll paper UI drawing process in step S506 of FIG. Here, when the user processes the raster data and performs roll paper UI drawing processing based on the user operation information received by the UI operation processing unit 305 via the touch panel display 105, the input terminal 211, or the like. Is shown as an example.

  In step S <b> 701, display image storage information is acquired from the state storage unit 310. In step S702, it is calculated from the display image storage information acquired in step S701 whether the display image subjected to the drawing generation process in step S504 can be displayed on the display 105. Specifically, it is possible to determine whether the image can be displayed based on information on the print width of the image, the number of images, the size of the display, the reduced scale state of the preview display, and the like.

  In step S703, it is determined whether the full screen can be displayed based on the calculation result in step S702. If it is determined in step S703 that the full screen can be displayed, the full display image is displayed. FIG. 8A shows a preview screen of the image displayed in this way.

  If it is determined in step S703 that the full screen cannot be displayed, a partial image (roll paper) is displayed. A preview of the image displayed in this way is shown in FIG.

  As shown in FIG. 8, the upper area 401 (first preview area) of the preview screen displays an image to be printed on the front side of the roll paper, and the lower area 402 (second preview area) of the preview screen. The preview area) displays images to be printed on the back side of the roll paper, and the upper image and the lower image are displayed in correspondence with each other.

  Furthermore, it is preferable to display the display of either one of the region 401 and the region 402 in reverse of the display when printing on the surface of the recording medium. By displaying the preview screen in this way, it is possible to make it easier for the user to visually recognize the front and back states of the actually printed recording medium.

  In FIG. 8A, since the full screen display is possible, the roll paper image is not displayed in this case, but in FIG. 8B, only a part of the image can be displayed, so the roll paper is displayed. ing.

  In FIG. 8, the upper side of the preview screen is displayed on the front side and the lower side of the preview screen is displayed on the back side.

  In addition to the “OK” button 403 and the “Cancel” button 404, the preview screen is controlled to display a “page spread cooperation” button 405, which will be described later.

  Next, a process when the user performs a scroll operation on the preview display screen will be described. FIG. 9A is a flowchart of scroll processing, and such processing is performed by the CPU 201 of the printing system 100. FIG. 9B is a diagram for explaining a scroll process performed on the display 105.

  At the time of a user operation on the touch panel display 105, user operation information is transmitted from the display 105 to the UI display processing unit 304 via the touch panel control unit 313. Specifically, user operation information transmitted from the display 105 to the UI display processing unit 304 via the touch panel control unit 313 during user operation is mainly coordinate information and a touch type.

  There are two types of touch types: a tap operation in which the user's hand touches one point, and a scroll operation in which the user's hand moves while touching.

  When the tap operation is performed, information on one point is transmitted to the touch panel control unit 313 as coordinate information.

  On the other hand, when the scroll operation is performed, as the coordinate information, first coordinate information (Xb, Yb) and second coordinate information (Xn, Yn) when the user's hand touches the touch panel, and the display 105 are displayed. To the touch panel control unit 313.

  In step S901 in FIG. 9A, the amount of movement in the X direction is acquired as scroll information from the first coordinate information and the second coordinate information. In step S <b> 901, the partial image after the acquired movement amount is moved is switched and displayed on the display 105. Depending on the amount of movement, a plurality of images may be switched, only one image may be switched, or only half of one image may be displayed. That is, when the movement amount is acquired, a process for performing an image switching operation on the preview screen is accepted (switching acceptance), and a preview screen with the display area moved accordingly is displayed.

  FIG. 10 shows a display on the display 105 when the scroll operation is performed in this way. As shown in FIG. 10A, there are an area 401 in which a front-side preview screen is displayed and an area 401 in which a rear-side preview screen is displayed. When a scroll operation is performed in any area, The display 105 is displayed so that both images move.

  FIG. 10A shows an example in which the scroll operation is performed in the area 402. At this time, the image in the area 401 is also scrolled in conjunction. By controlling the front-side image and the back-side image to move in conjunction with each other (switching) in this manner, the positional relationship between the front-side image and the back-side image can be easily recognized and preview-displayed. . That is, it is possible to provide a preview display that can be operated intuitively by the user.

  FIG. 10B shows a preview screen after scrolling so that the page advances in the X direction. At this time, it is preferable to display so that the remaining amount of roll paper gradually decreases. Conversely, when the scroll operation is performed so that the page returns in the X direction, it is preferable to display so that the remaining amount of roll paper gradually increases. By displaying the roll paper image so that the thickness of the roll-shaped recording medium changes in conjunction with the scrolling operation, the image currently displayed on the preview screen is printed at any position. Can be intuitively recognized by the user.

  Next, processing when an image exchange operation is performed on the preview screen will be described with reference to FIGS.

  FIG. 11 is a flowchart for explaining processing when image conversion processing is performed in order to change the position where an image is printed on the preview screen. Such processing is performed by the CPU 201 of the printing system 100. FIG. 12 is a diagram illustrating an operation when selecting and changing an image to be exchanged.

  In the exchange operation, first, one image is selected as shown in FIG. Since the selected image is displayed in the area 406, it is possible to grasp what image is currently selected. Next, the image of the other party whose image is selected in FIG. 12A is selected. Since the selected image is displayed in the area 407, it is possible to grasp what image is currently selected. At this time, as shown in FIGS. 12A and 12B, the image information selected on the display 105 is stored in the state storage unit 310.

  When the “OK” button 403 is touched in a state where two images are selected in this way, the image displayed in the area 406 and the image displayed in the area 407 are exchanged, and FIG. As shown in c), the preview screen after the replacement is displayed. When the “Cancel” button 404 is touched in a state where at least one image is selected, the selected state is released, and the release is stored in the state storage unit 310.

  FIG. 12 shows an example in which one sheet is selected from the area 401 and one sheet is selected from the area 402. However, as shown in FIG. 13, two sheets may be selected from the area 401 and exchanged. Is possible. At this time, as shown in FIG. 13A, two images selected from the same area 401 may be displayed separately in an upper area 406 and a lower area 407 on the preview screen, or FIG. As shown in b), they may be displayed side by side in the upper area 406.

  FIG. 11 shows processing when the “OK” button 403 is touched after two images are selected.

  In step S <b> 1101, the image conversion processing unit 306 acquires selection information indicating that an image is selected in the region 406 or the region 407 from the state storage unit 310. In step S1102, the image conversion processing unit 306 updates and saves the job attribute information after the replacement in the job storage unit 308 so that the setting after the image replacement is performed before the image replacement.

  In step S1103, the image conversion processing unit 306 updates and stores the converted image information in the image storage unit 309. At this time, if both of the selected images are images on the front surface, the front surface image storage information is updated to the state after the exchange. If it is located on both the front and back surfaces, both the front surface image storage information and the back surface image storage information are updated so that the display state after the replacement is obtained.

  In step S1104, based on the information after the change, a display process for the image after the change is performed, and a preview screen is displayed on the display 105.

  In this state, by touching the “OK” button 403 again, the image after the replacement (image displayed on the preview screen) is printed by the printing unit 106.

  As described above, an image exchange process can be easily performed by selecting an image on the preview screen and accepting the exchange.

  By the way, an image printed on roll paper by the printing system shown in the present embodiment is bound after printing, and at that time, two images are arranged in a spread so that one image is formed. Sometimes it is. In such a case, if only one of the images is exchanged by the exchange process described with reference to FIGS. 11 to 13, the images cannot be arranged in a spread, and two images forming one image are formed. It will be a disjointed position.

  In order to prevent such a state, control is performed so that two images are moved as a set even when one of two images forming one image is selected by being arranged in a spread. It is necessary to. A cooperation process when two images are linked so that the two images move as a set will be described with reference to FIGS.

  FIG. 15 shows a screen when the two images are subjected to the linkage processing. As shown in FIG. 15A, when the second page and the third page are to be linked, touching these two images and then touching the “page spread cooperation” button 405 performs the page spread cooperation. Is called. That is, it is possible to preliminarily define that two images are in a related positional relationship by performing such cooperation processing. In order to make it easy to identify which image has been selected when the cooperation processing is performed, the image may be displayed in the area 406. Further, as shown in FIG. 15A, a plurality of spread cooperation processes may be performed simultaneously. Specifically, the selected state of the 6th page and the 7th page is displayed in the area 407, or by touching the “spread cooperation” button 405 in such a state, the two cooperation processes are performed simultaneously. Also good.

  Moreover, after such a cooperation process is performed, it is preferable to connect two page images with a broken line so as to identify the linked images as shown in FIG.

  It should be noted that when the “page spread cooperation” button 405 is touched in a state where two pages are determined to be incapable of cooperation processing based on bookbinding conditions, control may be performed so that the cooperation processing is not performed. preferable.

  FIG. 16A is a diagram of a bookbinding state performed after printing by the printing system as viewed from above. Depending on the bookbinding conditions, there is a case where bookbinding is performed with the center closed as shown in FIG. In such a case, the order of the pages on the preview screen is complicated as shown in FIG. 16B, but in such a case, if only the front side image and the back side image are linked. Instead, the cooperation processing may be performed between the two images on the front surface side or between the two images on the back surface side.

  When either one of the images subjected to the cooperation processing is selected as an image to be exchanged, the other image is also automatically selected as an image to be exchanged. When one image to be exchanged is selected, another image is selected so that the exchange operation is automatically performed in a spread state. Similarly, when any one of the images subjected to the cooperation process is selected as the replacement destination image, the corresponding one is automatically selected as the replacement destination image. When the “OK” button 403 is touched in such a state, the two images are exchanged.

  By providing as described above, an image exchange process can be performed in consideration of a case where two spread images are set as one image.

  The present invention can be implemented as a system, apparatus, method, program, storage medium, or the like, and can be applied to a system including a plurality of devices. You may apply to the apparatus which consists of one apparatus.

  Note that the present invention includes a software program that implements the functions of the above-described embodiments directly or remotely from a system or apparatus. The present invention also includes a case where the system or the computer of the apparatus is achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, or the like.

  Examples of the recording medium for supplying the program include a flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. In addition, there are magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), and the like.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the downloaded key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the technical idea or the main features thereof.

100 Printing System 105 Touch Panel Display 106 Printing Unit

Claims (9)

A first preview area capable of displaying a part of the plurality of images printed on the front surface of the recording medium; a second preview area capable of displaying a part of the plurality of images printed on the back surface; Control means for controlling to display on the screen,
Among a plurality of images to be printed on the front surface, a plurality of images to be accepted for switching from a part of images displayed in the first preview area to another image to be printed on the front surface and to be printed on the back surface Switching acceptance means for accepting switching from a part of the image displayed in the second preview area to another image printed on the back surface,
The printing system, wherein the switching receiving unit receives the first preview area and the second preview area so as to be switched in conjunction with each other.   The control means displays the display of either the first preview area or the second preview area by reversing the display when printing on the surface of the recording medium. The printing system according to 1. The printing system prints a plurality of images continuously on both sides of a roll-shaped recording medium,
When the switching is accepted by the switching accepting unit, the control unit performs control so that the thickness of the roll-shaped recording medium is changed and displayed in conjunction with the switching operation. The printing system according to claim 1 or 2. The screen on which the control means displays the first preview area and the second preview area is a touch panel display,
4. The printing system according to claim 1, wherein the switching receiving unit receives switching in response to an operation of the touch panel display by a user. 5.   5. The apparatus according to claim 1, further comprising an exchange receiving unit configured to receive an exchange between any one image printed on the front surface and any one image printed on the back surface. Printing system.   The exchange accepting unit can accept an exchange between any one image printed on the front surface and any one other image printed on the front surface, and any one printed on the back surface. 6. The printing system according to claim 5, wherein an exchange between an image and any one other image to be printed on the back surface can be accepted.   When the positional relationship between the first image and the second image on the recording medium is defined in advance, the exchange accepting unit is linked with the exchange between the first image and the third image, The printing system according to claim 5 or 6, wherein the second image is also replaced with a fourth image corresponding to the third image. A first preview area capable of displaying a part of the plurality of images printed on the front surface of the recording medium; a second preview area capable of displaying a part of the plurality of images printed on the back surface; A control process for controlling to be displayed on the screen,
Among a plurality of images to be printed on the front surface, a plurality of images to be accepted for switching from some images displayed in the first preview area to other images to be printed on the front surface and to be printed on the back surface A switching acceptance step for accepting switching from a part of the image displayed in the second preview area to another image to be printed on the back surface,
The control method for a printing system, wherein in the switching reception step, the first preview area and the second preview area are received so as to be switched in conjunction with each other. A first preview area capable of displaying a part of the plurality of images printed on the front surface of the recording medium; a second preview area capable of displaying a part of the plurality of images printed on the back surface; Control means for controlling to be displayed on the screen,
Among a plurality of images to be printed on the front surface, a plurality of images to be accepted for switching from some images displayed in the first preview area to other images to be printed on the front surface and to be printed on the back surface A program that causes the printing system to function as a switch receiving unit that receives a switch from a part of the image displayed in the second preview area to another image to be printed on the back surface,
A program characterized in that, as the switching receiving means, the first preview area and the second preview area are received so as to be switched in conjunction with each other.