JP6489317B2 - Pull print system - Google Patents

Description

  The present invention relates to a pull printing system that executes so-called pull printing in which job data of a print job is downloaded from a print server to a printing apparatus and printed by the printing apparatus.

  As a conventional pull print system, a print data is downloaded from a print server to a printing apparatus as job data of a print job, and then raster image data is generated and printed by the printing apparatus based on the print data. (For example, refer to Patent Document 1).

JP2015-138495A

  However, in the conventional pull printing system, since raster image data is generated by the printing apparatus based on the printing data, there is a problem that the load on the printing apparatus is high and the time until completion of printing is long.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a pull printing system that can complete pull printing at high speed.

  The pull print system according to the present invention includes a print server and a printing apparatus that executes printing based on job data as print job data. The print server transmits data. Data transmission means for generating print image data as raster image data by executing RIP processing based on print data as job data received from the outside of the print server. The printing device is a device that executes the same RIP processing as the data generation unit based on print data as job data. The printing device includes a login acceptance unit that accepts a user login, and a print server. Data request means for requesting data, and The data requesting unit requests job data of the user whose login has been received by the login receiving unit to the print server, and the data transmitting unit includes the print image data generated by the data generating unit. Printing image data as job data requested by the data requesting means is transmitted to the printing apparatus.

  With this configuration, the pull print system of the present invention generates image data for printing as raster image data on the print server, not the printing apparatus based on the printing data, and then prints on the printing apparatus based on the printing image data. Therefore, it is not necessary to generate raster image data in the printing apparatus based on the print data when pull printing is performed, and the load on the printing apparatus can be reduced. Therefore, the pull printing system of the present invention can complete pull printing at high speed. In particular, since the RIP process executed in the print server is the same as the RIP process executed in the printing apparatus, the pull print system of the present invention generates raster image data in the print server based on the print data. Even in the case of printing, it is possible to obtain a printed matter having the same quality as when raster image data is generated and printed by the printing apparatus based on the print data.

  In the pull print system of the present invention, the printing apparatus includes a preview execution unit that executes a preview of a print job, and the data generation unit performs RIP processing based on print data received from outside the print server. The image data for display is generated as raster image data by executing, and the data requesting unit requests the print server for image data for displaying the job data of the user whose login is received by the login receiving unit. The data transmitting means transmits display image data requested by the data requesting means among the display image data generated by the data generating means to the printing device, and the preview executing means is configured to print the print data. Sent from the server You may perform a preview of the print job on the basis of the display image data.

  With this configuration, the pull print system of the present invention generates display image data as raster image data on the print server based on the print data, and then executes a preview on the printing apparatus based on the display image data. When performing pull printing, a preview can be executed in the printing apparatus.

  In the pull print system of the present invention, the print server may include image log means for storing display data of job data acquired by the printing apparatus as a history.

  With this configuration, the pull print system according to the present invention stores who prints what image and when, so that the security performance can be improved.

  The pull printing system of the present invention can complete pull printing at high speed.

1 is a block diagram of a pull print system according to an embodiment of the present invention. It is a block diagram of the user terminal shown in FIG. FIG. 2 is a block diagram of the print server shown in FIG. 1. FIG. 2 is a block diagram of the MFP shown in FIG. 1. FIG. 2 is a sequence diagram of an operation of the pull print system shown in FIG. 1 when a user logs in to a print server from a user terminal. 3 is a flowchart of the operation of the user terminal shown in FIG. 2 when executing a preview based on print data. 3 is a flowchart of the operation of the user terminal shown in FIG. 2 when transmitting print data. 6 is a flowchart of the operation of the MFP shown in FIG. 4 when printing is performed based on print data received directly from a user terminal. 4 is a flowchart of the operation of the print server shown in FIG. 3 when print data is received from a user terminal. FIG. 2 is a sequence diagram of an operation of the pull print system shown in FIG. 1 when a user logs in to a print server from an MFP. FIG. 2 is a sequence diagram of an operation of the pull print system shown in FIG. 1 when a preview of a print job for pull print is executed in the MFP. It is a figure which shows an example of the list screen displayed in the operation | movement shown in FIG. It is a figure which shows an example of the thumbnail preview screen displayed in the operation | movement shown in FIG. It is a figure which shows an example of the original image preview screen displayed in the operation | movement shown in FIG. FIG. 2 is a sequence diagram of an operation of the pull print system shown in FIG. 1 when a print job for pull print is executed in the MFP. FIG. 4 is a flowchart of the operation of the print server shown in FIG. 3 when updating an image log.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  First, the configuration of the pull print system according to the present embodiment will be described.

  FIG. 1 is a block diagram of a pull print system 10 according to the present embodiment.

  As shown in FIG. 1, a pull print system 10 includes a user terminal 20 that generates print data, a print server 30, and an MFP (printing apparatus) that executes printing based on job data as print job data. (Multifunction Peripheral) 40. The user terminal 20, the print server 30, and the MFP 40 can communicate with each other via a network 11 such as a LAN (Local Area Network) or the Internet.

  The print data generated by the user terminal 20 is data described in a page description language (PDL) such as PCL (Printer Command Language) and KPDL (Kyocera Page Description Language).

  The print server 30 has higher machine specifications and higher data processing capacity than the MFP 40.

  Note that the pull print system 10 can include a plurality of user terminals similar to the user terminal 20. However, in the following, the user terminal 20 will be described on behalf of the user terminal provided in the pull print system 10.

  Similarly, the pull print system 10 can include a plurality of MFPs similar to the MFP 40. However, the MFP 40 will be described below as a representative of the MFP provided in the pull print system 10.

  FIG. 2 is a block diagram of the user terminal 20.

  As shown in FIG. 2, the user terminal 20 is a display device such as an operation unit 21 which is an input device for inputting various operations by the user and an LCD (Liquid Crystal Display) for displaying various information. A display unit 22, a communication unit 23 that is a communication device that communicates with an external device via the network 11 (see FIG. 1), a semiconductor memory that stores various data, an HDD (Hard Disk Drive), and the like A storage unit 24 that is a storage device and a control unit 25 that controls the entire user terminal 20 are provided. The user terminal 20 is configured by a portable terminal such as a smartphone or a computer such as a PC (Personal Computer).

  The storage unit 24 stores a printer driver 24a that controls the operation of the printing apparatus, and a RIP module 24b that generates raster image data by executing RIP (Raster Image Processor) processing based on print data. . The printer driver 24a and the RIP module 24b may each be installed in the user terminal 20 at the manufacturing stage of the user terminal 20, or the user terminal 20 from an external storage medium such as a USB (Universal Serial Bus) memory. May be additionally installed, or may be additionally installed on the user terminal 20 from the network 11.

  The control unit 25 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory) storing a program and various data, and a RAM (Random Access Memory) used as a work area of the CPU. Yes. The CPU executes a program stored in the ROM or the storage unit 24.

  FIG. 3 is a block diagram of the print server 30.

  As shown in FIG. 3, the print server 30 includes an operation unit 31 that is an input device such as a mouse and a keyboard for inputting various operations by a user, and a display that is a display device such as an LCD that displays various information. Unit 32, communication unit 33 that is a communication device that communicates with an external device via network 11 (see FIG. 1), and a storage unit that is a storage device such as a semiconductor memory or HDD that stores various data. 34 and a control unit 35 that controls the entire print server 30. The print server 30 is configured by a computer such as a PC.

  The storage unit 34 stores a print server program 34a that controls the operation of the print server 30 and a RIP module 34b that generates raster image data by executing RIP processing based on print data. Each of the print server program 34a and the RIP module 34b may be installed in the print server 30 at the manufacturing stage of the print server 30, or may be additionally installed in the print server 30 from an external storage medium such as a USB memory. Alternatively, it may be additionally installed on the print server 30 from the network 11.

  The RIP module 34b is a module having the same contents as a later-described RIP module 47b (see FIG. 4) of the MFP 40 (see FIG. 1). That is, the RIP module 34b executes the same RIP process as the RIP module 47b of the MFP 40.

  The storage unit 34 stores user information 34c including various types of information for each user such as user identification information and user password.

  The storage unit 34 can store a plurality of print data 34d. The storage unit 34 stores the print data 34d in association with the user identification information.

  The storage unit 34 can store a plurality of printing image data 34e as printing raster image data. The print image data 34e is a file that can be printed by the printing apparatus without performing RIP processing, such as a PCLm (Printer Command Language mobile) file, a PWG (Printer Working Group) raster file, or a URF (Universal Raster Format) file. . The storage unit 34 stores the print image data 34e in association with the corresponding print data 34d.

  The storage unit 34 can store a plurality of display image data 34f as display raster image data. The display image data 34f is a file that can be previewed on a PC or a printing apparatus, such as a PNG (Portable Network Graphics) file. The display image data 34e includes original data as original image data generated by executing RIP processing by the RIP module 34b based on the print data 34d, and by reducing the image size with respect to the original image. Thumbnail data as thumbnail data with a reduced data size is included. The storage unit 34 stores the display image data 34f in association with the corresponding print data 34d. When the print image data 34e is used as the original data, the display image data 34f may include only thumbnail data among the original data and the thumbnail data.

  The storage unit 34 stores an image log 34g including display image data 34f for job data acquired by the MFP 40. The image log 34g is information for storing a history of who printed what image and when. The image log 34g may include only one of the original data and the thumbnail data of the display image data 34f.

  The control unit 35 includes, for example, a CPU, a ROM that stores programs and various data, and a RAM that is used as a work area of the CPU. The CPU executes a program stored in the ROM or the storage unit 34.

  The control unit 35 executes a print server program 34a stored in the storage unit 34, thereby generating a data generation unit 35a that generates data, a data transmission unit 35b that transmits data, and a job acquired by the MFP 40. It functions as image log means 35c for storing data display image data 34f as a history.

  FIG. 4 is a block diagram of the MFP 40.

  As shown in FIG. 4, the MFP 40 includes an operation unit 41 that is an input device such as buttons for inputting various operations by a user, a display unit 42 that is a display device such as an LCD that displays various types of information, Via a printer 43 that is a printing device that performs printing on a recording medium such as paper, a scanner 44 that is a reading device that reads image data from a document, an external facsimile apparatus (not shown), and a communication line such as a public telephone line A fax communication unit 45 that is a fax device that performs fax communication, a communication unit 46 that is a network communication device that communicates with an external device via the network 11 (see FIG. 1), and a semiconductor that stores various data. A storage unit 47 that is a storage device such as a memory or an HDD, and a control unit 4 that controls the entire MFP 40 It is equipped with a door.

  The storage unit 47 stores an MFP program 47a that controls the operation of the MFP 40, and an RIP module 47b that generates raster image data by executing RIP processing based on print data. The MFP program 47a and the RIP module 47b may be installed in the MFP 40 at the manufacturing stage of the MFP 40, or may be additionally installed in the MFP 40 from an external storage medium such as a USB memory, or on the network 11. To the MFP 40 may be additionally installed.

  The control unit 48 includes, for example, a CPU, a ROM that stores programs and various data, and a RAM that is used as a work area of the CPU. The CPU executes a program stored in the ROM or the storage unit 47.

  The control unit 48 executes the MFP program 47a stored in the storage unit 47 to thereby execute a data request for requesting data from the log-in accepting unit 48a that accepts the user's login and the print server 30 (see FIG. 1). It functions as a means 48b and a preview execution means 48c for executing a print job preview.

  Next, the operation of the pull print system 10 will be described.

  First, the operation of the pull print system 10 when the user logs in to the print server 30 from the user terminal 20 will be described.

  FIG. 5 is a sequence diagram of the operation of the pull print system 10 when the user logs in to the print server 30 from the user terminal 20.

  A user can log in to the print server 30 via the operation unit 21 of the user terminal 20.

  As shown in FIG. 5, when a login instruction is input via the operation unit 21, the control unit 25 of the user terminal 20 combines the user identification information and password input via the operation unit 21. Is transmitted to the print server 30 (S101).

  The control unit 35 of the print server 30 permits the user to log in when the combination of the user identification information and the password transmitted from the user terminal 20 is included in the user information 34c (S102). ), To that effect is notified to the user terminal 20 (S103).

  When the control unit 25 of the user terminal 20 is notified from the print server 30 that the login of the user is permitted, the control unit 25 notifies the user through the display unit 22 that the login of the user is permitted. In step S104, the operation shown in FIG.

  Next, the operation of the user terminal 20 when executing a preview based on print data will be described.

  The user can instruct the user terminal 20 to execute a preview based on the print data scheduled to be transmitted by the user terminal 20 via the operation unit 21 of the user terminal 20. When the execution of the preview is instructed, the control unit 25 of the user terminal 20 executes the operation shown in FIG. 6 by executing the printer driver 24a.

  FIG. 6 is a flowchart of the operation of the user terminal 20 when executing a preview based on print data.

  As shown in FIG. 6, the control unit 25 generates raster image data such as a PNG file by executing RIP processing by the RIP module 24b based on the print data (S111), and then generates the generated raster image data. Based on the above, a preview is executed on the display unit 22 (S112), and the operation shown in FIG.

  Next, the operation of the user terminal 20 when transmitting print data will be described.

  When the user confirms the preview executed on the display unit 22 and decides to transmit the print data by the user terminal 20, the user terminal 20 transmits the print data to the operation unit of the user terminal 20. The user terminal 20 can be instructed via 21. When instructed to transmit print data, the control unit 25 of the user terminal 20 executes the operation shown in FIG. 7 by executing the printer driver 24a.

  FIG. 7 is a flowchart of the operation of the user terminal 20 when transmitting print data.

  As shown in FIG. 7, the control unit 25 determines the transmission destination of the print data (S121). Here, the user can set the transmission destination of the print data in advance in the printer driver 24 a via the operation unit 21. As a print data transmission destination, a specific printing apparatus such as the MFP 40 and the print server 30 can be set.

  When the control unit 25 determines in S121 that the set transmission destination is the printing device, the control unit 25 transmits the print data to the printing device set as the transmission destination via the communication unit 23 (S122), and FIG. The operation shown in FIG.

  If the control unit 25 determines in S121 that the set transmission destination is the print server 30, the control unit 25 transmits print data to the print server 30 via the communication unit 23 (S123), and ends the operation illustrated in FIG. To do. Here, when transmitting the print data to the print server 30, the control unit 25 adds the identification information of the logged-in user to the print data and transmits it.

  Next, the operation of the MFP 40 when printing is performed based on print data directly received from the user terminal 20 will be described.

  When the control unit 48 of the MFP 40 receives print data as job data from the user terminal 20, the control unit 48 performs the operation shown in FIG.

  FIG. 8 is a flowchart of the operation of the MFP 40 when printing is executed based on print data received directly from the user terminal 20.

  As shown in FIG. 8, the control unit 48 generates raster image data such as a PCLm file, a PWG raster file, and a URF file by executing RIP processing by the RIP module 47b based on the received print data ( In step S131, printing is executed by the printer 43 based on the generated raster image data (S132), and the operation shown in FIG. 8 ends.

  Next, the operation of the print server 30 when print data is received from the user terminal 20 will be described.

  When receiving the print data from the user terminal 20, the control unit 35 of the print server 30 performs the operation shown in FIG.

  FIG. 9 is a flowchart of the operation of the print server 30 when print data is received from the user terminal 20.

  As shown in FIG. 9, the data generation unit 35a of the control unit 35 stores the received print data in the storage unit 34 as print data 34d (S141). Here, the data generation unit 35a stores the print data 34d in association with the user identification information added to the received print data.

  Next, the data generation unit 35a executes RIP processing by the RIP module 34b based on the print data 34d stored in the storage unit 34 in S141, and as raster image data, a PCLm file, a PWG raster file, a URF file, etc. After generating the print image data and the display image data such as the PNG file (S142), the generated print image data and display image data are stored as the print image data 34e and the display image data 34f, respectively. Is stored in the unit 34 (S143), and the operation shown in FIG. Here, the data generation unit 35a stores the print image data 34e and the display image data 34f in association with the print data 34d stored in S141.

  Next, the operation of the pull print system 10 when the user logs in to the print server 30 from the MFP 40 will be described.

  FIG. 10 is a sequence diagram of the operation of the pull print system 10 when the user logs in to the print server 30 from the MFP 40.

  A user can log in to the print server 30 via the operation unit 41 of the MFP 40.

  As illustrated in FIG. 10, when a login instruction is input via the operation unit 41, the login reception unit 48 a of the MFP 40 prints the combination of the user identification information and the password input via the operation unit 41. It transmits to the server 30 (S151).

  When the combination of the user identification information and the password transmitted from the MFP 40 is included in the user information 34c, the control unit 35 of the print server 30 permits the user to log in (S152). The MFP 40 is notified of this (S153).

  When the login acceptance unit 48a of the MFP 40 is notified from the print server 30 that the login of the user is permitted, the login acceptance unit 48a notifies the user through the display unit 42 that the login of the user is permitted. (S154), the operation shown in FIG.

  Next, the operation of the pull print system 10 when a preview of a print job for pull print is executed in the MFP 40 will be described.

  FIG. 11 is a sequence diagram of the operation of the pull printing system 10 when the MFP 40 executes a preview of a print job for pull printing.

  The user can instruct the MFP 40 to confirm the print job for pull printing via the operation unit 41 of the MFP 40.

  As shown in FIG. 11, when an instruction for confirming a print job for pull printing is input via the operation unit 41, the data request unit 48b of the MFP 40 receives the print job for pull printing of the logged-in user. A list is requested from the print server 30 (S161). Here, the data request unit 48b includes the identification information of the logged-in user in the request in S161.

  Upon receiving the request in S161, the data transmission unit 35b of the print server 30 generates a list of print data 34d associated with the user identification information included in the request in S161 (S162). Is transmitted to the MFP 40 (S163).

  When receiving the list from the print server 30, the data request unit 48b of the MFP 40 displays a list screen for displaying the received list on the display unit 42 (S164).

  FIG. 12 is a diagram illustrating an example of the list screen 50 displayed in S164.

  The list screen 50 shown in FIG. 12 includes a list display area 51 indicating a list of print jobs for pull printing of the logged-in user, and printing for instructing execution of the print job selected in the list display area 51. A button 52, a preview button 53 for instructing execution of a preview of the print job selected in the list display area 51, and an end button 54 for ending the operation shown in FIG.

  In the list display area 51, it is possible to display all the print jobs for pull printing of the logged-in user. If it is not possible to simultaneously display all the print jobs for pull printing of the logged-in user in the list display area 51, they can be displayed by scrolling. In the list display area 51, any one or a plurality of print jobs can be selected. The selected print job is displayed in reverse in the list display area 51.

  The print button 52 and the preview button 53 can be operated only when any print job is selected in the list display area 51.

  When the user presses the preview button 53 via the operation unit 41 of the MFP 40, the data request unit 48b of the MFP 40 is selected in the list display area 51 when the preview button 53 is pressed, as shown in FIG. The print server 30 is requested for a thumbnail of the print job (S165).

  When receiving the request in S165, the data transmission unit 35b of the print server 30 transmits the thumbnail data of the thumbnail requested in S165 of the display image data 34f to the MFP 40 (S166).

  Upon receiving the thumbnail data from the print server 30, the preview execution unit 48c of the MFP 40 displays a thumbnail preview screen that displays thumbnails based on the received thumbnail data on the display unit 42 (S167).

  FIG. 13 is a diagram showing an example of the thumbnail preview screen 60 displayed in S167.

  A thumbnail preview screen 60 shown in FIG. 13 includes a thumbnail area 61 for displaying thumbnails of each page of the target print job, a print button 62 for instructing execution of the target print job, and a list screen 50 (see FIG. 12). .)) And a finish button 64 for ending the operation shown in FIG.

  In the thumbnail area 61, thumbnails of all pages of the target print job can be displayed. If thumbnails of all pages of the target print job cannot be displayed simultaneously in the thumbnail area 61, they can be displayed by scrolling.

  When the user selects any thumbnail in the thumbnail area 61 via the operation unit 41 of the MFP 40, the data request unit 48b of the MFP 40 sends the original image of the selected thumbnail to the print server 30 as shown in FIG. A request is made (S168).

  When receiving the request in S168, the data transmission unit 35b of the print server 30 transmits the original data of the original image requested in S168 out of the display image data 34f to the MFP 40 (S169).

  When receiving the original data from the print server 30, the preview execution means 48c of the MFP 40 displays an original image preview screen for displaying the original image based on the received original data on the display unit 42 (S170).

  FIG. 14 is a diagram showing an example of the original image preview screen 70 displayed in S170.

  An original image preview screen 70 shown in FIG. 14 includes a preview area 71 for displaying the original image, a return button 72 for returning to the thumbnail preview screen 60 (see FIG. 13), and an operation for ending the operation shown in FIG. And an end button 73.

  The image displayed in the preview area 71 can be enlarged and displayed according to an operation through the operation unit 41.

  In the above description, the data request unit 48b requests the original image page by page, but may request the original image of all pages at once.

  Next, the operation of the pull print system 10 when a print job for pull print is executed in the MFP 40 will be described.

  The user operates the print button 52 (see FIG. 12) on the list screen 50 (see FIG. 12) and the print button 62 (see FIG. 13) on the thumbnail preview screen 60 (see FIG. 13) on the operation unit of the MFP 40. By pressing the button 41, it is possible to instruct the MFP 40 to execute the target print job. Here, the target print job is a print job selected in the list display area 51 (see FIG. 12) when the print button 52 is pressed, or a target print job on the thumbnail preview screen 60.

  FIG. 15 is a sequence diagram of the operation of the pull print system 10 when a print job for pull print is executed in the MFP 40.

  When the user presses the print button 52 on the list screen 50 or the print button 62 on the thumbnail preview screen 60 via the operation unit 41 of the MFP 40, the data request unit 48b of the MFP 40 displays the target print as shown in FIG. The job data of the job is requested to the print server 30 (S181).

  Upon receiving the request in S181, the data transmission unit 35b of the print server 30 transmits the print image data 34e as the requested job data to the MFP 40 (S182).

  When receiving the print image data from the print server 30, the control unit 48 of the MFP 40 executes printing by the printer 43 based on the received print image data (S183), and ends the operation shown in FIG.

  Next, the operation of the print server 30 when the image log 34g is updated will be described.

  FIG. 16 is a flowchart of the operation of the print server 30 when the image log 34g is updated.

  When the print image data 34e is transmitted from the print server 30 to the MFP 40 in S182 of the operation shown in FIG. 15, the control unit 35 of the print server 30 executes the operation shown in FIG.

  As shown in FIG. 16, the image log means 35 c of the print server 30 displays the job data display image data 34 f corresponding to the print image data 34 e transmitted to the MFP 40, and the requested use of the print image data 34 e. 16 is added to the image log 34g as a history (S191), and the operation shown in FIG. 16 is terminated.

  As described above, the pull print system 10 generates print image data as raster image data in the print server 30 instead of the MFP 40 based on the print data in S142, and then the MFP 40 based on the print image data. Since printing is executed in step S183, it is not necessary to generate raster image data in the MFP 40 based on the print data when pull printing is executed, and the load on the MFP 40 can be reduced. Therefore, the pull printing system 10 can complete pull printing at high speed.

  In particular, in the pull print system 10, since the RIP process executed in the print server 30 is the same as the RIP process executed in the MFP 40, raster image data is generated in the print server 30 in S142 based on the print data, and the MFP 40 uses it. Even in the case of printing in S183, it is possible to obtain a printed matter having the same quality as when the raster image data is generated in S131 by the MFP 40 based on the print data and is printed in S132.

  The pull print system 10 generates display image data as raster image data in the print server 30 based on the print data in S142, and then executes a preview in the MFP 40 based on the display image data (S167 or S170). Therefore, the preview can be executed in the MFP 40 when pull printing is executed. Therefore, the user can determine whether to perform pull printing or cancel by checking the preview.

  The display image data 34f stored in the print server 30 can be confirmed not only by the MFP 40 by being acquired by the MFP 40 but also by this computer by being acquired by a computer such as a PC. Or can be printed by a printing device connected to the computer.

  Since the pull print system 10 stores who prints what image and when by the image log 34g, the security performance can be improved.

  In this embodiment, when the print server 30 receives print data from the outside, the print server 30 executes RIP processing based on the print data received from the outside to obtain the print image data 34e and the display image data 34f. It is designed to generate. However, the print server 30 only has to generate the print image data 34e before transmitting the print image data 34e to the outside, and generates the display image data 34f before transmitting the display image data 34f to the outside. Just do it. For example, the print server 30 may generate the print image data 34e when there is a request in S181, and may generate the display image data 34f when there is a request in S165.

  In the present embodiment, when print data is received from the outside, the print server 30 executes RIP processing based on the print data received from the outside. However, the print server 30 may be set to execute RIP processing based on print data received from the outside. For example, the print server 30 may be set to always execute the RIP process when receiving print data from the outside as in the present embodiment, and the load of executing the RIP process is less than a specific level. If it is anticipated, the RIP process may be set to be executed, or the RIP process may be set not to be executed. When the RIP process is not executed, the print server 30 transmits print data as job data to the MFP 40 when job data is requested from the MFP 40.

  The printing apparatus of the present invention is an MFP in the present embodiment, but may be a printing apparatus other than the MFP, such as a printer dedicated machine.

DESCRIPTION OF SYMBOLS 10 Pull print system 30 Print server 34d Print data 34e Print image data 34f Display image data 35a Data generation means 35b Data transmission means 35c Image log means 40 MFP (printing apparatus)
48a login acceptance means 48b data request means 48c preview execution means

Claims (2)

A print server;
A printing apparatus that executes printing based on job data as print job data,
The print server
Data generation means for generating data;
Data transmission means for transmitting data,
The data generation means generates print image data as raster image data by executing RIP processing based on print data as job data received from outside the print server,
The printing apparatus is an apparatus that executes the same RIP processing as the data generation unit based on print data as job data
The printing apparatus includes:
Login acceptance means for accepting user login;
Data request means for requesting data from the print server,
The data requesting unit requests the print server for job data of a user whose login is received by the login receiving unit,
The data transmission unit transmits print image data as job data requested by the data request unit among the print image data generated by the data generation unit to the printing apparatus ,
The printing apparatus includes preview execution means for executing a print job preview,
The data generation means generates display image data as raster image data by executing RIP processing based on print data received from outside the print server,
The data request means requests the print server to display image data for job data of a user whose login is accepted by the login acceptance means,
The data transmission unit transmits the display image data requested by the data request unit among the display image data generated by the data generation unit to the printing apparatus,
The preview execution means executes a print job preview based on display image data transmitted from the print server,
The data generation means reduces original image data as original image data generated by executing RIP processing based on print data received from outside the print server, and an image size of the original image. Display image data including thumbnail data as thumbnail data with a reduced data size.
The data transmission means transmits the thumbnail data of thumbnails of all pages of a print job selected as a preview target in the printing apparatus to the printing apparatus when the printing apparatus is instructed to execute a preview. ,
The preview execution means executes a print job preview based on the thumbnail data transmitted from the print server,
The data transmission means transmits the original data of the original image of the thumbnail of the page selected in the printing device to the printing device when a thumbnail of any page is selected in the printing device,
The pull printing system , wherein the preview execution means executes a print job preview based on the original data transmitted from the print server .   The pull print system according to claim 1, wherein the print server includes image log means for storing image data for displaying job data acquired by the printing apparatus as a history.

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