JP6649103B2 - Image data generation device - Google Patents

Description

  The present invention relates to an image data generating apparatus that prevents a decrease in printing speed even when printing is continued by switching a paper feed tray or a paper discharge tray during printing in a printing apparatus.

  2. Description of the Related Art Conventionally, an image data generating apparatus generates image data necessary for a printing apparatus to perform printing by performing raster image processing (Raster Image Processing) based on a print job. The printing apparatus places sheets of a plurality of sizes, such as A4 and A3, and sheets of the same size but in different directions on the sheet feed tray, and switches the sheet feed tray as appropriate based on the image data to print on the sheets.

  In view of this, Japanese Patent Application Laid-Open No. H11-163,086 discloses a technique relating to an image data generation device for executing an appropriate image generation process regardless of the direction of a fed paper.

  The image data generation device stores image data generated by raster image processing based on a print job, detects a paper feeding state including a direction of paper fed from a paper feeding tray to an image generation unit, and detects the paper feeding state. Based on the detection result, enlargement processing, reduction processing, and rotation processing are selectively performed so that the stored image data conforms to the state of the image generation surface of the sheet to be fed.

  Some printing apparatuses have a stapling function for stapling printed and ejected sheets.

  According to Patent Document 2, when it is determined that the first stapler can perform stapling, an image is formed on A4 paper, stapling is performed by the first stapler, and stapling cannot be performed by the first stapler. There is disclosed a technique relating to an image forming apparatus that forms an image rotated by 90 ° on A4R paper (a paper whose orientation is different from that of A4 paper) by 90 ° and performs stapling by a second stapler when the determination is made.

Japanese Patent No. 4267398 JP-A-11-102095

  However, in the image data generation device described in Patent Document 1, the paper in the paper feed tray used for printing the image data runs out, and when the other paper feed tray is switched and printing is continued, the paper is not printed. When the orientation is changed, a rotation process of the image data occurs, which causes a problem that the printing speed is reduced.

  Similarly, in the image forming apparatus described in Patent Document 2 described above, the staples of the first stapler of the used discharge tray disappear, and the staple is switched by switching to the discharge tray having the second stapler. Since the staple position is changed when the continuation is performed, a rotation process of the image data occurs, which causes a problem that the printing speed is reduced.

  In particular, the processor of the printing apparatus has a lower processing capacity than a processor of a PC or the like, so that the image data to be printed has a higher resolution, the color of the image data is large, or the size of the paper is large. If the amount is large, it takes time to rotate the image data, and the printing speed is reduced.

  The present invention has been made in view of such a problem, and an image capable of preventing a reduction in printing speed even when switching between a paper feed tray and a paper discharge tray during printing in a printing apparatus to continue printing. It is an object to provide a data generation device.

To achieve the above object, a first feature of an image data generation device according to the present invention is an image data generation device that generates image data based on a print job,
A tray information acquisition unit that acquires tray information including at least the remaining number and the state of consumables used for each of the plurality of trays of the printing apparatus,
A consumables use number calculation unit for calculating a consumables use number in which the consumables are used based on a print job;
A raster image processing unit that determines the direction of a tray and image data to be used based on the tray information and the number of consumables used, and generates image data by executing raster image processing in the determined direction.
It is to provide.

A second feature of the image data generation device according to the present invention is that
The tray information obtaining unit obtains, as the tray information, a size, an orientation, and a remaining number of sheets stacked on a plurality of paper feed trays of a printing apparatus;
The consumables usage calculating unit is configured to calculate the number of print pages of the image data as the consumables usage based on the print job.

A third feature of the image data generating device according to the present invention is that
Based on the tray information of the first paper feed tray specified in the print job from the tray information and the number of printed pages,
The raster image processing unit,
When the number of printed pages is equal to or less than the number of remaining sheets in the first paper feed tray,
Generating image data by performing raster image processing on all print pages of the print job in the direction of paper in the first paper feed tray;
The raster image processing unit,
If the number of printed pages is larger than the number of remaining sheets in the first paper feed tray,
Searching whether there is a second paper tray having the same paper size as the first paper tray and having a different paper direction from the first paper tray;
If the second paper feed tray is present, all the pages of the print job are processed until raster image processing is performed.
(1) When the physical page number of the image data generated by the raster image processing is equal to or less than the remaining amount of paper in the first paper feed tray, the direction of the document of the physical page number is changed to the paper of the first paper supply tray. Perform raster image processing according to the orientation,
(2) If the physical page number of the image data is larger than the remaining amount of paper in the first paper feed tray, raster image processing is executed according to the direction of paper in the second paper feed tray. It is to generate image data.

A fourth feature of the image data generation device according to the present invention is that
Based on the tray information of the first paper feed tray specified in the print job from the tray information and the number of printed pages,
The raster image processing unit,
When the number of printed pages is equal to or less than the number of remaining sheets in the first paper feed tray,
Generating image data by performing raster image processing on all print pages of the print job in the direction of paper in the first paper feed tray;
The raster image processing unit,
If the number of printed pages is larger than the number of remaining sheets in the first paper feed tray,
Searching whether there is a second paper tray having the same paper size as the first paper tray and having a different paper direction from the first paper tray;
If the second paper feed tray is present, all the pages of the print job are processed until raster image processing is performed.
(1) If the physical page number of the image data generated by the raster image processing is equal to or less than a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first paper feed tray, the direction of the document of the physical page number is changed to the number of the document. Executes raster image processing according to the direction of paper in one paper tray,
(2) When the physical page number of the image data is from a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first sheet feeding tray to a value obtained by adding a predetermined number of sheets to the remaining amount of paper in the first sheet feeding tray, Performing raster image processing by matching the orientation of the document with the physical page number with the orientation of the paper in the first paper tray and the second paper tray;
(3) If the physical page number of the image data is larger than a value obtained by adding a predetermined number of sheets to the remaining amount of paper in the first paper feed tray, the raster is adjusted in accordance with the direction of paper in the second paper feed tray. The purpose is to generate image data by performing image processing.

A fifth feature of the image data generation device according to the present invention is that
The tray information acquisition unit acquires, as the tray information, a staple position of a stapler used in a plurality of discharge trays of a printing apparatus, and a remaining number of staples,
The consumables usage calculating unit calculates the number of staples stapled based on the print job as the consumables usage.

A sixth feature of the image data generation device according to the present invention is that
A first discharge tray provided with a stapler for stapling at the first stapling position,
A second paper discharge tray provided with a stapler for stapling at a second staple position different from the first staple position,
The raster image processing unit is configured to determine whether the number of staples required for stapling at the first staple position in the print job calculated by the consumables use number calculation unit is the remaining number of staples at the first staple position. When the number of staples remaining at the second staple position is less than the above, the direction of the image data is determined so as to be stapled on the second paper discharge tray,
The number of staples required for stapling at the second staple position in the print job calculated by the consumables use number calculator is equal to or greater than the remaining number of staples at the second staple position; If the number of staples is less than the remaining number of staples at the stapling position, the direction of the image data is determined so as to be stapled on the first paper discharge tray.

  According to the first feature of the image data generating apparatus according to the present invention, the tray to be used and the direction of the image data are determined based on the tray information and the number of consumables used, and the raster image processing is executed in the determined direction. By doing so, the image data is generated, so that it is possible to prevent a decrease in printing speed even when printing is continued by switching the paper feed tray or the paper discharge tray during printing in the printing apparatus.

  According to the second feature of the image data generating apparatus according to the present invention, the size, orientation, and remaining number of sheets loaded on a plurality of paper feed trays of the printing apparatus are acquired as tray information, and the In particular, the number of pages of image data to be printed is calculated as the number of consumables used, so that printing speed is prevented from lowering even when switching to a paper feed tray with a different paper orientation and continuing printing during printing in the printing apparatus. be able to.

According to the third feature of the image data generating device according to the present invention,
If the number of printed pages is larger than the number of remaining papers in the first paper tray,
A search is performed to determine whether there is a second paper tray having the same paper size as the first paper tray and having a different paper direction from the first paper tray,
If the second paper feed tray is present, all pages of the print job are processed until raster image processing is performed.
(1) If the physical page number of the image data generated by the raster image processing is equal to or less than the remaining amount of paper in the first paper feed tray, the direction of the document of the physical page number is changed to the paper direction of the first paper feed tray. Perform raster image processing according to
(2) If the physical page number of the image data becomes larger than the remaining amount of paper in the first paper feed tray, raster image processing is executed in accordance with the direction of paper in the second paper feed tray to reduce the image data. Generate.

  Therefore, after the raster image processing, when the number of pages to be printed is larger than the remaining number of sheets in the first sheet feeding tray specified by the print job, and the printing is switched from the first sheet feeding tray to the second sheet feeding tray having a different sheet direction, and printing is performed. However, at the time of switching, the rotation processing of the image data is not required, and a decrease in the printing speed can be prevented.

Further, according to a fourth feature of the image data generation device according to the present invention,
(1) If the physical page number of the image data generated by the raster image processing is equal to or smaller than a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first paper feed tray, the orientation of the document of the physical page number is changed to the first supply. Perform raster image processing according to the orientation of the paper in the paper tray,
(2) If the physical page number of the image data is between a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first paper feed tray and a value obtained by adding a predetermined number of sheets to the remaining amount of paper in the first paper feed tray, Performing raster image processing by matching the orientation of the document with the number with the orientation of the paper in the first and second paper trays;
(3) If the physical page number of the image data becomes larger than a value obtained by adding a predetermined number of sheets to the remaining amount of paper in the first paper tray, raster image processing is performed according to the direction of paper in the second paper tray. By executing this, image data is generated.

  Therefore, even if there is an error in the number of sheets contained in the sheet feed tray information of the first sheet tray, the predetermined number of sheets before and after the remaining amount of sheets in the first sheet tray does not include both the portrait and landscape image data. Therefore, even when switching to a paper feed tray having a different paper orientation and continuing printing, a reduction in printing speed can be prevented.

  According to the fifth aspect of the image data generating apparatus of the present invention, the staple position of the stapler used in the plurality of paper output trays of the printing apparatus and the remaining number of staples are acquired as the tray information, and the printing is performed. Since the number of staples to be stapled based on the job is calculated as the number of consumables used, the printing speed is not particularly reduced even when printing is continued in the printing device and the staple position is switched to a different output tray and printing is continued. Can be prevented.

According to the sixth feature of the image data generation device according to the present invention,
The raster image processing unit is configured such that the number of staples required for stapling at the first staple position in the print job calculated by the consumables use number calculation unit is equal to or greater than the remaining number of staples at the first staple position; If the number of staples is less than the remaining number of staples at the second staple position, the direction of the image data is determined so as to be stapled on the second discharge tray;
The number of staples required for stapling at the second staple position in the print job calculated by the consumables use number calculation unit is equal to or greater than the number of remaining staples at the second staple position, and the first staple position If the number of staples is less than the remaining number of staples, the direction of the image data is determined so as to be stapled on the first discharge tray.

  For this reason, the stapling is performed at an appropriate position on the sheet, and the switching process of the image data is not required at the time of switching, so that a reduction in the printing speed can be prevented.

FIG. 1 is a block diagram illustrating an example of a configuration of a printing apparatus having an image data generation unit according to the first embodiment of the image data generation apparatus according to the present invention and a connection with a terminal device. FIG. 2 is a flowchart showing the operation of the image data generation unit of the first embodiment of the image data generation device according to the present invention. FIG. 3 is a diagram illustrating directions of image data generated by performing the raster image processing by the image data generating unit of the first embodiment of the image data generating apparatus according to the present invention. FIG. 4 is a flowchart showing the operation of the image data generation unit of the second embodiment of the image data generation device according to the present invention. FIG. 5 is a diagram illustrating directions of image data generated by performing raster image processing by the image data generation unit of the second embodiment of the image data generation device according to the present invention. FIG. 6 is a diagram illustrating another example of the direction of image data generated by performing the raster image processing by the image data generation unit of the second embodiment of the image data generation device according to the present invention. FIG. 7 is a flowchart showing the operation of the image data generation unit of the third embodiment of the image data generation device according to the present invention. FIG. 8 is a diagram illustrating the orientation of image data generated by performing raster image processing by the image data generation unit of the third embodiment of the image data generation device according to the present invention. FIG. 9 is a block diagram illustrating an example of a configuration of a printing apparatus having an image data generation unit according to the fourth embodiment of the image data generation apparatus according to the present invention and a connection with a terminal apparatus. FIG. 10 is an explanatory diagram illustrating the operation of the image data generation unit of the fourth embodiment of the image data generation device according to the present invention. FIG. 11 is a flowchart showing the operation of the image data generation unit of the fourth embodiment of the image data generation device according to the present invention. FIG. 12 is a flowchart illustrating the operation of the image data generation unit of the fifth embodiment of the image data generation device according to the present invention.

  Next, an embodiment of an image data generation device according to the present invention will be described in detail with reference to the drawings.

  In the following, the raster image processing (Raster Image Processing) is described as raster image processing. In the following plurality of embodiments, the image data generation device according to the present invention will be described as being provided in a printing device as an image data generation unit, but the present invention is not limited to this, and may be provided in a terminal device or a device dedicated to raster image processing. You may do it. In addition, the embodiments described below are merely examples of the present invention, and the image data generation device according to the present invention is not limited to the embodiments described below.

[First Embodiment]
<Configuration of Printing Apparatus 1 Having Image Data Generation Unit 11>
FIG. 1 is a block diagram showing an example of a configuration of a printing apparatus 1 having an image data generation unit 11 of a first embodiment of an image data generation apparatus according to the present invention and a connection with a terminal device 3.

  As shown in FIG. 1, a printing apparatus 1 having an image data generation unit 11 according to a first embodiment of the image data generation apparatus according to the present invention includes terminal devices 3 and 3 of each user via a network 2 such as an in-house network. , ... are connected.

  The printing apparatus 1 includes an image data generation unit 11, a memory 12, an HDD (hard disk drive) 13, a print processing unit 14, a paper supply unit 15, a paper discharge unit 16, a network I / F unit 17, and the like. Prepare.

  The image data generation unit 11 includes a CPU (not shown) and the like, and executes a program such as a printer driver stored in the HDD 13 to execute the tray information acquisition unit 11a according to the present invention, and calculate the number of pages. The unit 11b functions as a unit 11b (consumables use number calculation unit) and a raster image processing unit 11c, and generates image data for printing based on a print job transmitted from the terminal device 3 or the like.

  The memory 12 temporarily stores various information processed by the image data generation unit 11 and various data such as a print job.

  The HDD 13 stores programs such as a printer driver and various application programs for the image data generation unit 11 to function as the tray information acquisition unit 11a, the page number calculation unit 11b, and the raster image processing unit 11c according to the present invention.

  The print processing unit 14 performs printing on consumable paper based on the image data transmitted from the terminal device 3 or the image data generated by the image data generation unit 11 by an inkjet method, a stencil printing, or a laser printing method. I do.

  The paper feed unit 15 includes a plurality of (here, for example, m (here, a natural number of 2 or more)) paper feed trays 15a1 to 15am on which various sizes such as A4 and A3 are stacked, and The paper trays 15a1 to 15am include paper feed tray sensors 15b1 to 15bm for detecting the direction and remaining amount of paper in the paper trays 15a1 to 15am. )) Or “portrait (short side paper feed)” to the print processing unit 14.

  The paper discharge unit 16 discharges the paper printed by the print processing unit 14.

  The network I / F unit 17 connects to each of the terminal devices 3, 3,.

  The terminal device 3 is a PC or the like that performs various types of information processing, and transmits a print job to the printing device 1 via the network 2.

<Operation of Image Data Generation Unit 11 of First Embodiment>
Next, the operation of the image data generation unit 11 of the first embodiment of the image data generation device according to the present invention configured as described above will be described with reference to the drawings.

  FIG. 2 is a flowchart showing the operation of the image data generation unit 11 of the first embodiment of the image data generation device according to the present invention.

  First, in the printing apparatus 1, for example, when a print job is received from a certain terminal device 3 via the network 2, the operation starts, and first, the tray information acquisition section 11a of the image data generation section 11 Paper feed tray information (tray information) of each paper feed tray 15a1-15am is obtained from each paper feed tray sensor 15b1-15bm (step S101).

  The paper feed tray information includes information such as the paper size, orientation (state), and the remaining amount of paper, and is acquired from each paper feed tray sensor 15b1 to 15bm provided in each paper feed tray 15a1 to 15am. However, the paper feed tray information may be stored in the memory 12 or the like and acquired from the memory 12 or the like. The state includes the size of the paper and the orientation of the paper. Since the paper orientation can be recognized from the vertical and horizontal information of the paper size, the paper orientation information may be omitted.

  Next, the raster image processing unit 11c of the image data generation unit 11 selects the first paper feed tray, which is the paper feed tray specified in the print job, from among the paper feed trays 15a1 to 15am information (step S103). Subsequently, the page number calculation unit 11b of the image data generation unit 11 calculates the number of physical pages of the image data from the print job received from the terminal device 3 (Step S105). Here, the number of physical pages refers to the number of pages (number of sheets) of paper when image data is printed.

  Next, the raster image processing unit 11c of the image data generation unit 11 determines whether or not the number of physical pages of the image data is larger than the remaining amount of paper in the first paper feed tray (step S107). If it is determined that the number is equal to or less than the remaining amount of paper in the first paper supply tray (step S107; NO), the raster image processing unit 11c adjusts all pages of the print job to the direction of paper in the first paper supply tray. Raster image processing is performed to generate image data (step S109).

  On the other hand, if it is determined that the number of physical pages of the image data is larger than the remaining amount of paper in the first paper feed tray (step S107; YES), the raster image processing unit 11c performs the second feed based on the paper feed tray information. The paper tray is searched (step S111). The second paper tray is a paper tray having the same paper size as the first paper tray among the paper trays 15a1 to 15am.

  If it is determined that there is no second paper feed tray (step S113; NO), it means that there is no paper feed tray having the same paper size as the first paper feed tray, and the raster image processing unit 11c proceeds to step S107. Similarly to the case where it is determined that the number of physical pages of the data is equal to or less than the remaining amount of paper in the first paper feed tray (NO), all pages of the print job are subjected to raster image processing according to the direction of paper in the first paper supply tray. To generate image data (step S109).

  On the other hand, if it is determined that the second paper feed tray is present (step S113; YES), the raster image processing unit 11c subsequently determines whether the second paper feed tray has a different paper direction from the first paper feed tray. Is determined (step S115).

  Here, if the second paper feed tray has the same paper orientation as the first paper feed tray (step S115; NO), the second paper feed tray has the same paper size as the first paper feed tray, and , It means that sheets of the same direction are stacked. For this reason, the raster image processing unit 11c determines that all pages of the print job are the first page in the same manner as when the number of physical pages of the image data is determined to be equal to or less than the remaining amount of paper in the first paper feed tray in step S107 (NO). Raster image processing is performed according to the direction of the paper in the paper feed tray to generate image data (step S109).

  On the other hand, when the second paper feed tray has a different paper orientation from the first paper feed tray (step S115; YES), the raster image processing unit 11c further performs the raster image processing until all the pages of the print job are raster image processed (step S115). (S123; NO), it is determined whether or not the physical page number of the image data subjected to the raster image processing is equal to or less than the remaining amount of paper in the first paper supply tray (step S117). The physical page number of the image data is a number added from the first page (first sheet) for each physical page number of the image data generated by the raster image processing.

  If the physical page number of the image data generated by the raster image processing is equal to or less than the remaining amount of paper in the first paper tray (step S117; YES), the user prints the image data page of the physical page number. Since it is possible to print on the paper of the first paper tray specified by the job, the raster image processing unit 11c adjusts the orientation of the document of the physical page number to the raster of the paper of the first paper tray. Image data is generated by performing image processing (step S119).

  On the other hand, when the physical page number of the image data generated by the raster image processing is larger than the remaining amount of paper in the first paper feed tray (step S117; NO), the physical page number and thereafter are the same as those of the first paper feed tray. This indicates that the remaining amount of paper is exceeded and printing cannot be performed on the paper in the first paper feed tray. Therefore, in this case, the raster image processing unit 11c performs raster image processing by matching the orientation of the document after the physical page number with the orientation of the paper in the second paper feed tray (step S121).

  Then, when the raster image processing of all pages of the print job is completed (step S123; YES), the raster image processing unit 11c ends the above processing.

  FIG. 3 is an explanatory diagram showing the direction of image data after raster image processing by the image data generation unit 11 of the first embodiment of the image data generation device according to the present invention.

  In FIG. 3, for example, the print job instructs printing of a document of, for example, 100 pages, that is, a document with a physical page number of 1 to 100 pages. In the first paper feed tray, for example, the paper size is “A4”. In this case, the direction of the sheet is “landscape (long side sheet feeding)” and the remaining amount of the sheet is “30 sheets”. The second paper feed tray indicates, for example, a case where the paper size is “A4”, the paper direction is “vertical (short side paper feed)”, and the remaining paper amount is “500 sheets”.

  Therefore, in such a condition, the raster image processing unit 11c determines that the original having the physical page number of 1 to 30 pages is the “horizontal orientation” which is the orientation of the paper in the first paper feed tray specified by the user in the print job. (Long-side paper feed) "to generate image data D1 of" landscape (long-side paper feed) "as shown in FIG.

  On the other hand, the remaining originals having the physical page numbers of 30 to 100 pages of the print job are subjected to raster image processing in the “portrait (short-side paper feeding)” direction of the paper in the second paper feeding tray, and FIG. As shown in the figure, "vertical (short-side sheet feeding)" image data D2 is generated.

  Therefore, according to the image data generation unit 11 of the first embodiment of the image data generation device according to the present invention, when the number of print pages is larger than the number of remaining sheets in the first paper feed tray, the raster image processing unit 11c After generating the image data by performing the raster image processing in the paper orientation of the one paper tray, the raster is processed in the paper orientation of the second paper tray loaded with the same paper size as the paper loaded in the first paper tray. Image processing is performed to generate image data.

  Therefore, even when the number of pages to be printed is larger than the remaining number of sheets in the first sheet feeding tray specified by the print job and the printing is switched from the first sheet feeding tray to the second sheet feeding tray having a different sheet orientation, even when printing is performed, In addition, the rotation processing of the image data is not required, and a decrease in the printing speed can be prevented.

  That is, according to the image data generating unit 11 of the first embodiment of the image data generating apparatus according to the present invention, the direction of the image data is determined based on the paper feed tray information of the plurality of paper feed trays of the printing apparatus and the number of printed pages. The image data is generated by determining and executing the raster image processing in the determined direction. Therefore, even when switching to a paper feed tray with a different paper orientation and continuing printing during printing in the printing apparatus, the rotation speed of the generated image data is not required at the time of switching, thereby preventing a decrease in printing speed. can do.

[Second embodiment]
Next, an image data generation unit 11 of a second embodiment of the image data generation device according to the present invention will be described. Note that the image data generation unit 11 of the second embodiment has the same configuration as the image data generation unit 11 of the first embodiment shown in FIG. The operation will be described with reference to the reference numerals of the data generator 11.

  FIG. 4 is a flowchart showing the operation of the image data generation unit 11 of the second embodiment of the image data generation device according to the present invention. The same steps as those in the operation of the image data generation unit 11 according to the first embodiment shown in FIG. 2 are denoted by the same step numbers, and description thereof is omitted.

  As shown in FIG. 4, the process from the process of acquiring the paper feed tray information in step S101 to the process of determining whether or not the direction of the paper of the second paper tray is different from that of the first paper tray in step S115 is the same as that of FIG. The operation is the same as the operation of the image data generation unit 11 of the first embodiment shown.

  Then, in the image data generating unit 11 of the second embodiment, when the second paper feed tray has a different paper orientation from the first paper feed tray (step S115; YES), the raster image processing unit 11c of the second embodiment Until all pages of the print job are subjected to the raster image processing (step S123; NO), is the physical page number of the image data subjected to the raster image processing less than or equal to (the remaining amount of paper in the first paper feed tray-n)? It is determined whether or not it is (step S201).

  The reason for comparing the physical page number of the image data with (the remaining amount of paper in the first paper feed tray-n) is that the accuracy of detecting the number of remaining papers by the paper feed tray sensors 15b1 to 15bm is limited, In the case where the remaining number of sheets in the paper tray cannot be accurately detected, and also in consideration of a paper jam, etc., the predetermined number of sheets is equal to the remaining number of sheets in the sheet feeding tray information acquired from the sheet feeding unit 15 in the process of step S101. This is for considering the error of -n sheets. Note that n is a natural number, and a user or the like can set an arbitrary value such as 1, 5, 10, or the like.

  Here, if the physical page number of the image data is equal to or smaller than (the remaining amount of paper in the first paper feed tray−n) (step S201; YES), the raster image processing unit 11c determines the orientation of the document of the physical page number. Raster image processing is performed according to the direction of the paper in the first paper feed tray (step S119).

  On the other hand, if the physical page number of the image data is larger than (the remaining amount of paper in the first paper feed tray−n) (step S201; NO), the raster image processing unit 11c subsequently sets the physical page number of the image data to It is determined whether it is equal to or less than the remaining amount of paper in one paper feed tray + p) (step S203).

  The reason for comparing the physical page number of the image data with (the remaining amount of paper in the first paper supply tray + p) is to compare the physical page number with (the remaining amount of paper in the first paper supply tray-n) in step S201. This is for the same reason as above, in order to consider an error of + p sheets, which is a predetermined number, with respect to the remaining number of sheets in the sheet feeding tray information acquired from the sheet feeding unit 15 in the process of step S101. Note that p is also a natural number, and can be arbitrarily set by a user or the like, for example, a value of 1, 5, 10, or the like, and may be the same value as n.

  If the physical page number of the image data is equal to or less than (the remaining amount of paper in the first paper feed tray + p) (step S203; YES), the raster image processing unit 11c sets the orientation of the document of the physical page number to the first. Raster image processing is performed in accordance with the orientation of both sheets in the sheet feed tray and the second sheet feed tray to generate image data (step S205).

  Accordingly, during the period from −n to + p sheets based on the remaining number of sheets in the sheet feed tray information acquired from the sheet feed unit 15 in the process of step S101, the orientation of both sheets in the first sheet feed tray and the second sheet feed tray That is, the original is raster-image-processed in both “horizontal direction (long side sheet feeding)” and “vertical direction (short side sheet feeding)” to form image data in both directions.

  On the other hand, if the physical page number of the image data is larger than (the remaining amount of paper in the first paper feed tray + p) (step S203; NO), the raster image processing unit 11c changes the orientation of the document of the physical page number to the first. The image data is generated by performing the raster image processing in accordance with the direction of the paper in the two paper feed tray (step S121).

  FIG. 5 is an explanatory diagram showing the direction of image data after raster image processing by the image data generation unit 11 of the second embodiment of the image data generation device according to the present invention.

  Also in FIG. 5, as in FIG. 3, the print job is, for example, a 100-page document, and the first paper feed tray has, for example, a paper size of “A4” and a paper orientation of “landscape (long). Side feed) and the remaining amount is “30 sheets”, the paper size is “A4” in the second paper feed tray, the paper direction is “portrait (short side feed)”, and the remaining amount is The case of “500 sheets” is shown.

  Here, it is assumed that, for example, n = p = 1 is set in advance.

  For this reason, the raster image processing unit 11c of the second embodiment sets the range of ± 1 sheet of 30 sheets, which is the remaining number of sheets in the sheet feed tray information acquired from the sheet feed unit 15 in step S101, that is, as shown in FIG. Thus, during the period from page 29 to page 31, the sheet orientations of the first and second paper feed trays, that is, “landscape (long side paper feed)” and “portrait (short side paper feed) ) ", The print job is subjected to raster image processing to form image data D1 and image data D2 in both directions.

  It should be noted that the originals of pages 1 to 28 are subjected to the raster image processing in the “horizontal direction (long side sheet feeding)” which is the direction of the sheet in the first sheet feeding tray, and as shown in FIG. )), The original of 32 to 100 pages is subjected to the raster image processing in the “vertical orientation (short-side paper feeding)” which is the paper orientation of the second paper feed tray, and the “portrait” is processed. Only the image data D2 in the direction (short-side paper feed) "is generated.

  Therefore, according to the image data generation unit 11 of the second embodiment of the image data generation apparatus according to the present invention, when the second paper feed tray is present and the direction of the paper in the first paper feed tray is different, the first A raster image corresponding to a predetermined number of sheets (here, n + p sheets) before and after the remaining amount of paper indicated by the paper feed tray information detected from the paper feed tray according to the orientation of the paper in the first paper feed tray and the second paper feed tray. Processing is performed to generate image data D1 and image data D2 in both directions.

  As a result, when the remaining number of sheets in the first sheet tray cannot be accurately detected, or when a paper jam or the like occurs, the number of sheets remaining before and after the remaining sheet amount indicated by the sheet tray information detected from the first sheet tray. Even when switching from the first paper feed tray to the second paper feed tray, it is possible to prevent a decrease in printing speed.

  That is, according to the image data generating unit 11 of the second embodiment of the image data generating apparatus according to the present invention, the case where n = p = 0 will be described as an example. If the second paper feed tray is larger than the second paper feed tray, it is searched whether there is a second paper feed tray having the same paper size as the first paper feed tray and a paper direction different from that of the first paper feed tray. If there is a paper tray, (1) the physical page number of the image data generated by the raster image processing is equal to or less than the remaining amount of paper in the first paper supply tray until all the pages of the print job are subjected to the raster image processing. In such a case, the raster image processing is executed by matching the orientation of the original of the physical page number with the orientation of the paper in the first paper tray, and (2) the physical page number of the image data is changed to the remaining paper amount in the first paper tray. If it is larger than 2 suit the orientation of the paper feed tray to perform raster image processing. Therefore, after the raster image processing, when the number of pages to be printed is larger than the remaining number of sheets in the first sheet feeding tray specified by the print job, and the printing is switched from the first sheet feeding tray to the second sheet feeding tray having a different sheet orientation, and printing is performed. However, at the time of switching, the rotation processing of the image data is not required, and a decrease in the printing speed can be prevented.

  According to the image data generation unit 11 of the second embodiment of the image data generation apparatus according to the present invention, a case where n and p are not 0 will be described as an example. (1) An image generated by raster image processing If the physical page number of the data is equal to or less than a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first paper feed tray, the orientation of the document of the physical page number is adjusted to the direction of paper in the first paper supply tray. (2) If the physical page number is between a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first sheet feeding tray and a value obtained by adding a predetermined number of sheets to the remaining amount of paper in the first sheet feeding tray, Raster image processing is executed by matching the orientation of the document with the page number with the orientation of the paper in the first paper tray and the second paper tray, and (3) the physical page number of the image data is changed to the remaining paper in the first paper tray. Prescribed sheets for quantity If larger than the addition value performs raster image processing in accordance with the orientation of the sheet of the second paper feed tray.

  Therefore, even if there is an error in the number of sheets contained in the sheet feed tray information of the first sheet tray, the predetermined number of sheets before and after the remaining amount of sheets in the first sheet tray does not include both the portrait and landscape image data. Therefore, even when switching to a paper feed tray having a different paper orientation and continuing printing, a reduction in printing speed can be prevented.

  In the description of the second embodiment, the orientations of the first and second paper trays by a predetermined number (here, n + p sheets) before and after the remaining amount of paper in the first paper tray. It has been described that the raster image processing is performed according to the image processing. However, the present invention is not limited to this. As shown in FIG. Both data may be generated.

  FIG. 6 is a diagram illustrating another example of the direction of the image data generated by performing the raster image processing by the image data generation unit 11 of the second embodiment of the image data generation device according to the present invention.

  In FIG. 6 as well, as in FIGS. 3 and 5, when the print job is, for example, a 100-page document, all of the 100-page documents have “horizontal (long-side paper feed)” image data D1 and , "Longitudinal (short-side sheet feeding)" image data D2. The timing of generating both the “horizontal (long side paper feed)” image data D1 and the “vertical (short side paper feed)” image data D2 is determined, for example, by using the CPU of the raster image processing unit 11c. When the rate is low, it is generated during an idle time of, for example, 20% or less. With this configuration, in the printing apparatus 1, when printing of image data is performed by the print processing unit 14, even if paper is supplied from one of the first paper supply tray and the second paper supply tray, Since printing can be performed by selecting image data in one direction, a reduction in printing speed can be reliably prevented.

[Third embodiment]
Next, an image data generation unit 11 of a third embodiment of the image data generation device according to the present invention will be described. The image data generation unit 11 of the third embodiment has the same configuration as that of the image data generation unit 11 of the first embodiment shown in FIG. The operation will be described with reference to the reference numerals of the data generator 11.

  FIG. 7 is a flowchart showing the operation of the image data generation unit 11 of the third embodiment of the image data generation device according to the present invention. The same steps as those in the operation of the image data generation unit 11 according to the first embodiment shown in FIG. 2 are denoted by the same step numbers, and description thereof is omitted.

  As shown in FIG. 7, the process from the process of acquiring the paper feed tray information in step S101 to the process of searching for the second paper feed tray in step S113 is the same as the operation of the image data generating unit 11 of the first embodiment shown in FIG. It is. However, in step S111 of the third embodiment, when there are a plurality of second paper feed trays having the same paper size as the paper size of the first paper feed tray, the second paper feed tray with the largest remaining paper is searched.

  If it is determined in the determination process of step S113 that there is a second paper feed tray in which paper having the same size as the paper size of the first paper feed tray is placed in a different direction (YES), the raster image processing unit 11c Determines whether the number of physical pages of image data that can be printed from the first paper tray is smaller than the number of physical pages that can be printed from the second paper tray (step S301).

  Here, when the number of physical pages that can be printed from the second paper tray is greater than the number of physical pages that can be printed from the first paper tray (step S301; YES), the number of physical pages that can be printed from the first paper tray is greater than the number of physical pages that can be printed from the first paper tray. The possibility of running out of paper is lower when printing is performed with the two paper feed tray.

  Therefore, in this case, the raster image processing unit 11c performs the raster image processing on all the pages in accordance with the direction of the paper in the second paper feed tray, which is less likely to be out of paper (step S121).

  On the other hand, when the number of physical pages that can be printed from the second paper tray is equal to or less than the number of physical pages that can be printed from the first paper tray (step S301; NO), the number of physical pages that can be printed from the second paper tray is smaller than that when printing from the second paper tray. The possibility of running out of paper is lower when printing is performed with one paper feed tray.

  Therefore, in this case, the raster image processing unit 11c performs raster image processing on all pages in accordance with the orientation of the paper in the first paper feed tray (step S119).

  Note that, in the determination process of step S107, when the number of physical pages of the image data is equal to or less than the remaining amount of the first paper feed tray (NO), and when it is determined that there is no second paper feed tray in the determination process of step S113 ( NO), the raster image processing unit 11c performs raster image processing on all pages according to the orientation of the paper in the first paper feed tray, as in the case where the determination processing in step S301 determines NO. (Step S119).

  FIG. 8 is an explanatory diagram showing the direction of image data after raster image processing by the image data generation unit 11 of the third embodiment of the image data generation device according to the present invention.

  In FIG. 8 as well, as in FIGS. 3 and 5, the print job is, for example, a 100-page document, and in the first paper feed tray, for example, the paper size is “A4” and the paper direction is “landscape”. (Long side paper feed) "and the remaining amount of paper is" 30 sheets ", the paper size is" A4 "in the second paper feed tray, and the paper direction is" portrait (short side paper feed) ". The case where the remaining amount of paper is “500 sheets” is shown.

  Therefore, in the case of such a condition, in the image data generation unit 11 of the third embodiment, the number of physical pages “100 pages” of the image data is larger than the remaining number of sheets of the first paper feed tray “30”. Therefore, YES is determined in the step S107, the second sheet tray is searched in the following step S111, the second sheet tray is present, and the remaining sheet amount of the second sheet tray is larger than that of the first sheet tray. And the number of physical pages is large, the determination in step S301 is YES, and as shown in FIG. 5, the raster image processing is performed on the document of 100 pages in the “vertical (short-side paper feed)” of the second paper feed tray. Thus, the image data D2 of “vertical orientation (short-side sheet feeding)” is generated.

  Therefore, according to the image data generation unit 11 of the third embodiment of the image data generation apparatus according to the present invention, when the number of physical pages of the image data exceeds the remaining amount of the first paper supply tray, the second paper supply A tray is searched, and image data is generated by raster image processing in accordance with the paper orientation of the first paper feed tray or the second paper feed tray on which the largest number of papers of the same paper size as the first paper feed tray are stacked. Therefore, during printing in the image data generation unit 11, the number of times of switching to a paper feed tray having a different paper orientation for printing is reduced, and a reduction in printing speed can be prevented.

[Fourth embodiment]
Next, an image data generation unit 11 of a fourth embodiment of the image data generation device according to the present invention will be described.

<Configuration of Printing Apparatus 1 Having Image Data Generation Unit 11>
FIG. 9 is a block diagram showing an example of a configuration of the printing apparatus 1 having the image data generation unit 11 of the fourth embodiment of the image data generation apparatus according to the present invention and a connection with the terminal device 3.

  As shown in FIG. 9, a printing apparatus 1 having an image data generation unit 11 according to a fourth embodiment of the image data generation apparatus according to the present invention includes terminal apparatuses 3 and 3 of each user via a network 2 such as an in-house network. , ... are connected.

  The printing apparatus 1 includes an image data generation unit 11, a memory 12, an HDD (hard disk drive) 13, a print processing unit 14, a paper supply unit 15, a first paper discharge unit 16, a network I / F unit 17, And a second paper discharge unit 18.

  The image data generation unit 11 includes a CPU (not shown) and the like, and executes a program such as a printer driver stored in the HDD 13 to execute the tray information acquisition unit 11a according to the present invention, and calculate the number of staples. It functions as a unit 11d (consumables use number calculation unit) and a raster image processing unit 11c, and generates image data for printing based on a print job transmitted from the terminal device 3 or the like.

  The memory 12, the HDD 13, the print processing unit 14, the paper feed unit 15, and the network I / F unit 17 are provided with the same reference numerals in the image data generation unit 11 of the first embodiment shown in FIG. Therefore, the description is omitted.

  The first paper discharge unit 16 includes a paper discharge tray 16a on which printed and discharged paper is placed, a stapler 16b arranged on the paper discharge tray 16a, and a staple for detecting the remaining number of staples of the stapler 16b. The stapler 16b has a staple sensor 16c, sets a plurality of sheets discharged to the discharge tray 16a, and staples the staples 16b using consumable staples.

  Similarly to the first paper discharge unit 16, the second paper discharge unit 18 includes a paper discharge tray 18a on which printed and discharged paper is placed, a stapler 18b disposed on the paper discharge tray 18a, and a stapler 18b. A staple sensor 18c for detecting the remaining number of staples, a set of a plurality of sheets discharged to a discharge tray 18a, and a stapler 18b using staples, which are consumables. Perform stapling.

  The terminal device 3 is a PC or the like that performs various types of information processing, and transmits a print job to the printing device 1 via the network 2.

<Operation of Image Data Generation Unit 11 of Fourth Embodiment>
Next, the operation of the image data generation unit 11 of the image data generation device according to the fourth embodiment of the present invention configured as described above will be described with reference to the drawings.

  FIG. 10 is an explanatory diagram schematically illustrating the operation of the image data generation unit 11 of the fourth embodiment of the image data generation device according to the present invention. (A) shows the paper conveyed on the conveyance path in the printing apparatus 1 when the paper is discharged to the paper discharge tray 16a and stapled by the stapler 16b, and (b) is the paper discharged to the paper discharge tray 18a. 4 illustrates a sheet conveyed along a conveyance path in the printing apparatus 1 when stapling is performed by the stapler 18b. Here, based on the print job, the character “A” is printed on the first surface and the character “B” is printed on the second surface. An example of stapling will be described.

  As shown in FIG. 10A, the printing apparatus 1 includes a paper supply unit 15, a print processing unit 14, a first paper discharge unit 16, a second paper discharge unit 18, and a reversing unit 19. I have.

  The paper supply unit 15 includes a paper supply tray on which the paper is stacked. After the paper is transported from the paper supply tray to the paper supply transport path SR, the paper is transported to the circulation transport path CR. Here, there is a merging point at which the conveyance path of the fed paper and the path where the paper circulated and conveyed inside the apparatus after the front side printing is reversed and circulated and conveyed by the reversing unit 19 converge. Based on this junction, the path on the paper feed tray side is called a paper feed path SR, and the path through which the paper circulates in the printing apparatus 1 is called a circulation path CR.

  The print processing unit 14 has a line-type inkjet head, and performs printing on paper in line units by discharging ink onto the paper transported in the circulation transport path CR immediately below the inkjet head. The paper printed by the print processing unit 14 is conveyed in the housing on the circulation conveyance path CR by conveyance rollers or the like arranged on the circulation conveyance path CR, and is sent to the first paper ejection unit 16 or the second paper ejection unit 18. The paper is ejected.

  The reversing unit 19 reverses the front and back of the sheet transported in the circulating transport path CR, and recirculates the paper on the circulating transport path CR.

  The first paper discharge unit 16 is provided at a paper discharge tray 16 a having a tray shape protruding from the housing of the printing apparatus 1 and at a position on the paper discharge tray 16 a on the upstream side in the paper transport direction and on the back side of the paper surface. And a stapler 16b for stapling a plurality of sheets conveyed onto the sheet discharge tray 16a as one set. Further, as described above, the staple sensor 16c detects the remaining number of staples of the stapler 16b.

  The second paper output unit 18 is provided at a paper discharge tray 18 a having a tray shape protruding from the housing of the printing apparatus 1 and at a position upstream of the paper transport direction on the paper discharge tray 18 a and on the front side of the paper surface. And a stapler 18b for stapling a plurality of sheets conveyed onto the sheet discharge tray 18a as one set. Further, as described above, the staple sensor 18c detects the remaining number of staples of the stapler 18b.

  In FIG. 10A, based on the print job, first, the paper is transported from the paper feed unit 15 onto the paper feed transport path SR, is transported on the circulation transport path CR, and is printed by the print processing unit 14. Here, the number of sheets is two, and the letter “A” is printed on the first face and the letter “B” is printed on the second face.

  Then, the printed sheet is further transported on the circulating transport path CR, and is discharged to the first paper discharge unit 16. At this time, as shown in FIG. 10A, the printed sheet is discharged to the discharge tray 16a with the printed surface facing downward, and the stapler 16b transfers the discharged sheet to the upstream side in the sheet conveyance direction. Stapled at the upper position (top position) of the paper. As a result, stapling can be performed at the upper left of the sheet.

  In FIG. 10B, based on the print job, first, the paper is transported from the paper feed unit 15 onto the paper feed transport path SR, is transported along the circulation transport path CR, and is printed by the print processing unit 14. Here, the number of sheets is two, the letter “A” is printed on the first face, and the letter “B” is printed on the second face.

  Then, the printed sheet is further conveyed on the circulating conveyance path CR, is turned upside down by the reversing section 19, and is discharged to the second sheet discharging section 18. At this time, if the image printed by the print processing unit 14 is printed in the same direction as the image shown in FIG. 10A without rotating, the sheet discharged to the second sheet discharging unit 18 is shifted to the right. It will be stapled at the bottom.

  Therefore, in order to staple the upper left portion of the sheet discharged to the second sheet discharge unit 18, the images of “A” and “B” to be printed are rotated by 180 ° as shown in FIG. You need to keep it.

  As a result, the sheet on which the image rotated by 180 ° is printed is further conveyed on the circulation conveyance path CR, and is turned upside down by the reversing unit 19. Then, the paper is conveyed on the circulating conveyance path CR and discharged to the second paper discharge unit 18. At this time, as shown in FIG. 10B, the printed sheet is discharged to the discharge tray 18a with the printed surface facing downward, and the stapler 18b transfers the discharged sheet to the upstream side in the sheet conveyance direction. Stapled at the upper position (top position) of the paper. As a result, stapling can be performed at the upper left of the sheet.

  FIG. 11 is a flowchart showing the operation of the image data generation unit 11 of the fourth embodiment of the image data generation device according to the present invention.

  First, in the printing apparatus 1, for example, when a print job is received from a certain terminal device 3 via the network 2, the operation starts, and first, the tray information acquisition unit 11a of the image data generation unit 11 The discharge tray information (tray information) is obtained from the unit 16 and the second discharge unit 18 (step S401).

  The discharge tray information includes information such as the staple position (state) and the remaining amount of staples, and obtains the discharge tray information (tray information) of the discharge tray 16a from the staple sensor 16c of the first discharge unit 16. At the same time, the paper output tray information (tray information) of the paper output tray 18a is obtained from the staple sensor 18c of the second paper output unit 18. However, the discharge tray information may be stored in the memory 12 or the like and acquired from the memory 12 or the like. The state includes a staple position. The staple position may be omitted if the staple position is always fixed on the discharge tray 16a on the upstream side in the sheet transport direction.

  Next, the raster image processing unit 11c of the image data generation unit 11 selects the first discharge tray, which is the discharge tray designated by the print job, from the discharge trays 16a and 18a (step S403). The staple number calculator 11d of the image data generator 11 calculates the number of staples from the print job received from the terminal device 3 (step S405). Here, the number of staples refers to the number of staples used by the stapler.

  Next, the raster image processing unit 11c of the image data generation unit 11 determines whether or not the number of staples is larger than the remaining amount of the staples of the first discharge tray (Step S407), and the staple number is determined to be the first discharge amount. If the raster image processing unit 11c determines that the number of staples is equal to or less than the remaining amount of staples in the tray (step S407; NO), the raster image processing unit 11c performs raster image processing according to the direction in which all pages of the print job can be stapled in the first discharge tray. Then, image data is generated (step S409). Specifically, when the first paper discharge tray is the paper discharge tray 16a, the raster image processing unit 11c performs printing without rotating the orientation of the image as shown in FIG. While the image data is generated, if the first discharge tray is the discharge tray 18a, the raster image processing unit 11c rotates the direction of the image by 180 ° as shown in FIG. The image data is generated as follows.

  On the other hand, if the raster image processing unit 11c determines that the number of staples is larger than the remaining number of staples in the first discharge tray (step S407; YES), the raster image processing unit 11c further performs raster image processing on all pages of the print job. During this time (step S423; NO), based on the remaining amount of staples on the first paper output tray, whether the page of the physical page number of the raster image-processed image data is a page that can be stapled by the stapler of the first paper output tray It is determined whether or not it is (step S417).

  Here, when the page of the physical page number of the image data subjected to the raster image processing is a page that can be stapled by the stapler of the first discharge tray (step S417; YES), the stapler of the stapler of the first discharge tray has a staple. The raster image processing unit 11c determines that the page of the image data of the physical page number remains and can be stapled on the first discharge tray specified by the user in the print job. Raster image processing is performed to match the orientation with the direction in which stapling can be performed on the first discharge tray to generate image data (step S419).

  On the other hand, when the page of the physical page number of the image data subjected to the raster image processing is a page that cannot be stapled by the stapler of the first discharge tray (step S417; NO), the staple is stapled on the stapler of the first discharge tray. This means that the page of the image data of the physical page number is not left, and cannot be stapled in the first discharge tray specified by the user in the print job. Therefore, in this case, the raster image processing unit 11c performs the raster image processing by matching the orientation of the document after the physical page number with the orientation of the paper in the second paper feed tray (step S421).

  Then, when the raster image processing of all pages of the print job is completed (step S123; YES), the raster image processing unit 11c ends the above processing.

  Therefore, according to the image data generation unit 11 of the fourth embodiment of the image data generation apparatus according to the present invention, when the number of staples is larger than the remaining number of staples in the first paper discharge tray, the raster image processing unit 11c performs After the image data is generated by performing the raster image processing in the direction of the paper in the discharge tray, the image data is generated by performing the raster image processing in the direction in which the staple can be performed in the second paper supply tray.

  Therefore, even after the raster image processing, when the number of staples is larger than the number of remaining staples in the first paper output tray and the printing is switched from the first paper output tray to the second paper output tray having a different staple position, even when printing is performed, This eliminates the need for rotating the image data, thereby preventing a reduction in printing speed.

[Fifth Embodiment]
Next, an image data generation unit 11 of a fifth embodiment of the image data generation device according to the present invention will be described. The image data generation unit 11 of the fifth embodiment has the same configuration as that of the image data generation unit 11 of the fourth embodiment shown in FIG. The operation will be described with reference to the reference numerals of the data generator 11.

  FIG. 12 is a flowchart showing the operation of the image data generation unit 11 of the fifth embodiment of the image data generation device according to the present invention. Note that the same processes as those of the operation of the image data generation unit 11 of the fourth embodiment shown in FIG. 11 are denoted by the same step numbers, and description thereof will be omitted.

  As shown in FIG. 12, the operation from the process of acquiring the paper discharge tray information in step S401 to the process of step S423 is the same as the operation of the image data generating unit 11 of the fourth embodiment shown in FIG.

  If it is determined in the determination processing of step S423 that all pages of the print job have been subjected to the raster image processing (YES), the raster image processing unit 11c determines whether there is a print job to be executed next in the memory 12. It is determined whether or not it is (step S503).

  If it is determined that there is a print job to be executed next in the memory 12 (step S503; YES), the staple number calculation unit 11d uses the current number of staples remaining in the currently executed print job. The remaining number of staples is calculated by subtracting the number of staples used (step S505).

  Then, the staple number calculation unit 11d acquires a print job to be executed next from the memory 12 (step S507).

  Therefore, according to the image data generation unit 11 of the fifth embodiment of the image data generation apparatus according to the present invention, the remaining number of staples is calculated by subtracting the number of staples used, so that tray information is obtained. The next process can be executed by bypassing the process to be performed, and the time can be further reduced.

  In the description of the above embodiment, the image data generation unit 11 according to the present invention is provided in the printing apparatus 1. However, the present invention is not limited to this, and the terminal device 3 that generates a print job such as a PC is not limited to this. May be provided in a dedicated raster image processing apparatus (not shown) separate from the printing apparatus 1 and the terminal apparatus 3.

  The present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying constituent elements in an implementation stage without departing from the scope of the invention. Various inventions can be formed by appropriately combining a plurality of components disclosed in the above embodiments. For example, some components may be deleted from all the components described in the embodiments.

  Also, for example, each of the described functions or processes can be implemented by one or more processing circuits. Processing circuits include programmed processors and electrical circuits, as well as devices such as application-specific integrated circuits (ASICs) and circuit components arranged to perform the described functions. Also included.

  According to the image data generating apparatus of the present invention, the direction of image data is determined based on the tray information and the number of consumables used, and raster image processing is performed in the determined direction to generate image data. Further, even when the printing is continued by switching the paper feed tray or the discharge tray during printing in the printing apparatus, it is possible to prevent a decrease in printing speed.

1 printing device 11 image data generation unit (image data generation device)
11a tray information acquisition unit 11b page number calculation unit 11c raster image processing unit 11d staple number calculation unit 12 memory 13 HDD
14 print processing unit 15 paper supply unit 15a1 to 15am paper supply tray 15b1 to 15bm paper supply tray sensor 16 paper discharge unit (first paper discharge unit)
17 Network I / F Unit 18 Second Paper Output Unit 2 Network 3 Terminal Device

Claims (3)

An image data generation device that generates image data based on a print job,
A tray information acquisition unit that acquires tray information including at least the size, orientation, and remaining number of sheets of paper stacked on a plurality of paper feed trays of the printing apparatus ;
A consumables use number calculation unit that calculates the number of print pages of the image data as a consumables use number based on the print job;
A raster image processing unit that determines the paper feed tray and the direction of the image data to be used based on the tray information and the number of consumables used, and generates image data by performing raster image processing in the determined direction. ,
Bei to give a,
Based on the tray information of the first paper feed tray specified in the print job from the tray information and the number of printed pages,
The raster image processing unit,
When the number of printed pages is equal to or less than the number of remaining sheets in the first paper feed tray,
Performing raster image processing on all print pages of the print job in the direction of paper in the first paper feed tray;
Generates image data by
The raster image processing unit,
If the number of printed pages is larger than the number of remaining sheets in the first paper feed tray,
Searching whether there is a second paper tray having the same paper size as the first paper tray and having a different paper direction from the first paper tray;
If the second paper feed tray is present, all the pages of the print job are processed until raster image processing is performed.
(1) When the physical page number of the image data generated by the raster image processing is equal to or less than the remaining amount of paper in the first paper feed tray, the direction of the document of the physical page number is changed to the paper of the first paper supply tray. Perform raster image processing according to the orientation,
(2) When the physical page number of the image data is larger than the remaining amount of paper in the first paper tray, raster image processing is performed according to the direction of paper in the second paper tray.
Generating image data by
An image data generation device characterized by the above-mentioned. An image data generation device that generates image data based on a print job,
A tray information acquisition unit that acquires tray information including at least the size, orientation, and remaining number of sheets of paper stacked on a plurality of paper feed trays of the printing apparatus;
A consumables use number calculation unit that calculates the number of print pages of the image data as a consumables use number based on the print job;
A raster image processing unit that determines the direction of the sheet feed tray and image data to be used based on the tray information and the number of consumables used, and generates image data by performing raster image processing in the determined direction. ,
With
Based on the tray information of the first paper feed tray specified in the print job from the tray information and the number of printed pages,
The raster image processing unit,
When the number of printed pages is equal to or less than the number of remaining sheets in the first paper feed tray,
Generating image data by performing raster image processing on all print pages of the print job in the direction of paper in the first paper feed tray;
The raster image processing unit,
If the number of printed pages is larger than the number of remaining sheets in the first paper feed tray,
Searching whether there is a second paper tray having the same paper size as the first paper tray and having a different paper direction from the first paper tray;
If the second paper feed tray is present, all the pages of the print job are processed until raster image processing is performed.
(1) If the physical page number of the image data generated by the raster image processing is equal to or less than a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first paper feed tray, the direction of the document of the physical page number is changed to the number of the document. Executes raster image processing according to the direction of paper in one paper tray,
(2) When the physical page number of the image data is from a value obtained by subtracting a predetermined number of sheets from the remaining amount of paper in the first sheet feeding tray to a value obtained by adding a predetermined number of sheets to the remaining amount of paper in the first sheet feeding tray, Performing raster image processing by matching the orientation of the document with the physical page number with the orientation of the paper in the first paper tray and the second paper tray;
(3) If the physical page number of the image data is larger than a value obtained by adding a predetermined number of sheets to the remaining amount of paper in the first paper feed tray, the raster is adjusted in accordance with the direction of paper in the second paper feed tray. An image data generation device, which generates image data by executing image processing. An image data generation device that generates image data based on a print job,
A staple position of a stapler used in at least a plurality of paper output trays of the printing apparatus, and a tray information acquisition unit for acquiring tray information including the remaining number of staples,
A consumables use number calculation unit that calculates the number of staples stapled based on the print job as a consumables use number,
A raster image processing unit that determines a paper discharge tray to be used and the direction of image data based on the tray information and the number of consumables used, and executes raster image processing in the determined direction to generate image data; ,
With
A first discharge tray provided with a stapler for stapling at a first staple position, and a second discharge tray provided with a stapler for stapling at a second staple position different from the first staple position; ,
The raster image processing unit is configured to determine whether the number of staples required for stapling at the first staple position in the print job calculated by the consumables use number calculation unit is the remaining number of staples at the first staple position. As described above, when the number of staples remaining at the second staple position is less than the number of staples, the direction of the image data is determined so as to be stapled on the second paper discharge tray;
The number of staples required for stapling at the second staple position in the print job calculated by the consumables use number calculation unit is equal to or greater than the remaining number of staples at the second staple position; And determining the direction of the image data so as to be stapled on the first discharge tray when the number of staples is less than the remaining number of staples at the staple position.

Images