JP2010069672A - Printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a page picture on the other surface of a stored continuous paper without changing the sequence for storing the continuous paper after storing the continuous paper which has formed the page picture on one surface. <P>SOLUTION: A page management section 412 includes a sequence control part 424, and, if the storage of the page picture by a BM memory unit 410 is finished, reads page data from the BM memory unit 410 per page in the sequence controlled by the sequence control part 424, and outputs the page data to an output picture regulation section 414. The sequence control part 424 judges any of the front and the rear surface of a rolled sheet 26 is specified for printing and controls the reading and the output sequence of the page data according to the judgement result. The sequence control part 424 controls the sequence of page data so that the page management section 412 may read and output the page data in the descending order of page number with changing the sequence of page picture when accepting the indication of printing on the rear surface of the rolled sheet 26 for the job which is not partitioned. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a printing apparatus.

  In Patent Document 1, when starting printing, the print settings at the time of the previous printing are read from the print setting storage unit, the print settings of the print data spooled in the storage device are read from the job table, and the same as the print setting storage unit An image forming apparatus that preferentially prints print data of print settings is disclosed.

JP 2007-136952 A

  The present invention provides a printing apparatus capable of forming a page image on the other side of the stored continuous paper without changing the storage order of the continuous paper after storing the continuous paper on which the page image is formed on one side. For the purpose.

  In order to achieve the above object, the present invention according to claim 1 includes a page image forming unit that forms a page image on one side of continuous paper, and a first paper feeding unit that supplies the continuous image to the page image forming unit. Storage means for storing the continuous paper on which the page image forming means has formed a page image, and so that the page image forming means can form a page image on the other side of the continuous paper stored by the storage means. And a second paper feeding unit that supplies the continuous paper stored by the storage unit to the page image forming unit in the reverse order of the storage order.

  According to the second aspect of the present invention, when the first paper supply unit supplies continuous paper, the page image forming unit supplies the page images of odd or even pages on one side of the continuous paper in ascending or descending order. In the case where the second paper feeding unit forms and supplies continuous paper, the first paper feeding unit prints an unformed even page or odd page image on the other surface of the continuous paper. 2. The apparatus according to claim 1, further comprising an order control unit configured to control the page image forming order of the page image forming unit so that the page image forming unit forms the page image forming unit in descending order or ascending order which is reverse to the case of supplying the page number. It is a printing device.

  According to a third aspect of the present invention, there is provided a binding direction setting means for setting a binding direction for the page image formed by the page image forming means, and the page image forming means based on the setting of the binding direction setting means. 3. The printing apparatus according to claim 1, further comprising an image direction control unit configured to control the orientation of the page image formed on any surface of the continuous paper so that the orientation of the page image is rotated by 180 degrees for each page image.

  The present invention according to claim 4 is an acquisition means for acquiring a page description language, a page image conversion means for converting the page description language acquired by the acquisition means into a page image, and a page image converted by the page image conversion means. Storage means for storing data for one page or more, size calculation means for calculating the data size of the total page image when the page image conversion means converts all of the page description languages acquired by the acquisition means, A comparison unit that compares the data size calculated by the size calculation unit with a data size that can be stored at one time by the storage unit, and the page image conversion unit converts the data size at a time based on the comparison result of the comparison unit. Dividing means for dividing the page description language acquired by the acquisition means so that the data size of the total page image is less than or equal to the data size that can be stored in the storage means; The page image forming means sequentially forms, on a continuous sheet, page images obtained by individually converting the page description language divided by the dividing means by the page image converting means based on the comparison result of the comparing means. The printing apparatus according to any one of 1 to 3.

  According to the first aspect of the present invention, after storing the continuous paper on which the page image is formed on one side, the page image is formed on the other side of the stored continuous paper without changing the storage order of the continuous paper. Can do.

  According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, page images that can be bound in page order can be formed on continuous paper.

  According to the third aspect of the present invention, in addition to the effect of the present invention according to the first or second aspect, a page image having a direction corresponding to the set binding direction can be formed on the continuous paper.

  According to the fourth aspect of the present invention, in addition to the effect of the present invention according to any one of the first to third aspects, the storage unit stores the result of converting all the acquired page description languages into page images. Even if not, a page image can be formed on continuous paper.

Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 illustrates a printing apparatus 1 according to an embodiment of the present invention. The printing apparatus 1 is configured, for example, by connecting a main frame 10, a host PC 12 having a user interface device, and a post-processing apparatus 14 to the image forming apparatus 2 via a network 16. The main frame 10 and the host PC 12 transmit, for example, an image forming signal (job) or the like to the image forming apparatus 2 and control the image forming apparatus 2 to form a page image on continuous paper such as roll paper. The post-processing device 14 enables bookbinding using the cut roll paper, for example, by cutting the roll paper according to a plurality of page images respectively formed on both sides of the roll paper.

2A and 2B are configuration diagrams illustrating the configuration of the image forming apparatus 2, in which FIG. 2A is a configuration diagram when a page image is formed on the surface of the roll paper, and FIG. It is a block diagram in the case of forming an image.
As shown in FIG. 2A, the image forming apparatus 2 includes, for example, an image forming unit 20, a paper feeding device 22, and a stack (storage) device 24.
The paper feeding device 22 supplies roll paper (continuous paper) 26 on which no image is formed to the image forming unit 20. The stack device 24 stores the roll paper 26 after the image formation by the image forming unit 20 is wound up. Here, the roll paper 26 is detachably attached to the paper feeding device 22 and the stack device 24.

  The image forming unit 20 includes, for example, a user interface (UI) device 200 that is an input / output device such as a touch panel, and independent for each color of Y (yellow), M (magenta), C (cyan), and K (black). The photosensitive drums 202a to 202d configured as described above, the fixing device 204, and the control unit 3 are provided. When the image forming unit 20 receives an image forming signal for forming a page image of a plurality of pages from the main frame 10 or the host PC 12 (FIG. 1), for example, the control unit 3 controls each of the photosensitive drums 202a to 202d with laser light. To form electrostatic latent images on the photosensitive drums 202a to 202d. The electrostatic latent images formed on the photosensitive drums 202a to 202d are developed with toner of each color by a developing device (not shown) and transferred to the lower surface (inner surface) of the roll paper 26. The plurality of pages of toner images transferred to the roll paper 26 are fixed on the roll paper 26 by the fixing device 204.

  Further, as shown in FIG. 2B, the image forming apparatus 2 has a page image formed on the front surface (the inner surface of the roll paper 26) and the image forming unit 20 on the back surface of the roll paper 26 stored in the stack device 24. When forming a page image, a reversal paper feeding device 28 is provided instead of the paper feeding device 22 shown in FIG. The reversing paper feeding device 28 rotates in the direction opposite to that of the paper feeding device 22 to send out the roll paper 26, and the reversing roll for reversing the outer surface of the roll paper 26 so as to face the photosensitive drums 202a to 202d. 206, and is supplied to the image forming unit 20 with the outer surface of the roll paper 26 having the surface page image formed on the inner surface thereof facing downward.

  The reversing paper feeding device 28 may be a device different from the paper feeding device 22 and the stacking device 24, may be configured by adding a reversing roll 206 to the paper feeding device 22, or a reversible stack. A reversing roll 206 may be added to the device 24. Further, when the reverse paper feeder 28 and the paper feeder 22 are the same device, and the reverse paper feeder 28 is used as the paper feeder 22, the reverse roll 206 may not be used. . Further, when the reverse paper feeder 28 and the stack device 24 are the same device, and the reverse paper feeder 28 is used as the stack device 24, the reverse paper feeder 28 rotates reversely to store the roll paper 26. However, the reversing roll 206 may not be used.

FIG. 3 is a perspective view showing the result of the image forming apparatus 2 forming a plurality of page images on both sides of the roll paper 26, and FIG. 3A is a perspective view of the roll paper 26 viewed from the outside. ) Is a perspective view of the roll paper 26 as viewed from the inside.
As shown in FIG. 3, when a plurality of page images are formed on both sides of the roll paper 26, the page images on the front surface are arranged in ascending order from the end (the top of the roll paper) on the outer side, and the pages on the back side are arranged on the inner side. Images are arranged in ascending order from the edge. Then, the roll paper 26 is arranged such that page images of odd pages are arranged in ascending order from the end on the outer side, and page images of even pages are arranged in ascending order from the end on the inner side. The book can be bound in the order of cutting.

  For example, as shown in FIG. 4, the control unit 3 includes a CPU 30, a memory 32, a storage device 34 such as a hard disk drive (HDD), and a communication interface (IF) 36 for transmitting and receiving data connected to each other via a control bus 38. Thus, each part constituting the image forming apparatus 2 is controlled. For example, the above-described UI device 200 is also connected to the control bus 38.

  The CPU 30 executes predetermined processing based on a program stored in the memory 32 or the storage device 34 and controls the operation of the control unit 3. Further, instead of providing the program from the memory 32 or the storage device 34, the program can be provided by being stored in a recording medium such as a CD-ROM. This recording medium may be a magnetic disk, a semiconductor memory, or another recording medium.

  The communication IF 36 is a communication interface that connects the main frame 10 and the host PC 12 to the image forming apparatus 2. For example, the communication IF 36 receives an image forming signal such as a page description language (PDL) transmitted from the host PC 12 and outputs it to the CPU 30. When the CPU 30 receives the PDL, it converts it into a PDL of a predetermined format, analyzes it, and analyzes the page image (page image) of each color of Y (yellow), M (magenta), C (cyan), and K (black). Is developed (formed) on the memory 32, for example, and each part of the image forming unit 20 is controlled so that electrostatic latent images of the respective colors are formed on the photosensitive drums 202a to 202d.

FIG. 5 is a program configuration diagram showing the configuration of the image processing program 4 executed by the control unit 3.
As shown in FIG. 5, the image processing program 4 includes an input management unit 400, a PDL acquisition unit (In spool) 402, a job management unit 404, a PDL filter 406, a page image conversion unit 408, and a BM storage unit (Out spool) 410. , A page management unit 412, an output image adjustment unit 414, and an output control unit 416.
The image processing program 4 corresponds to, for example, JDF (Job Definition Format) of CIP4 (The International Cooperation for the Integration of Processes in Prepress, Press, and Postpress).

  The input management unit 400 accepts a page description language (PDL) such as PostScript (registered trademark) output from the mainframe 10 or the host PC 12, and sequentially outputs the page description language (PDL) to the PDL acquisition unit 402. The PDL acquisition unit 402 acquires and stores PDL for one job (corresponding to the first page to the last page), for example.

  The job management unit 404 includes a size calculation unit 418 and a comparison unit 420, and manages (controls) processing related to PDL stored by the PDL acquisition unit 402. The size calculation unit 418 calculates the data size of the total page image when the page image conversion unit 408 converts all the PDLs for one job stored in the PDL acquisition unit 402 into page images such as bitmap images. The comparison unit 420 compares the data size calculated by the size calculation unit 418 with the data size that can be stored at one time by the BM storage unit 410. In the comparison unit 420, the storage capacity of the BM storage unit 410 is set in advance.

  The PDL filter 406 includes a dividing unit 422. Upon receiving that the PDL for one job is stored in the PDL acquisition unit 402 under the control of the job management unit 404, the PDL filter 406 reads the PDL from the PDL acquisition unit 402 and converts the PDL into a page image. The page image conversion unit 408 is requested to perform the process of converting to the page image. The PDL filter 406 adds page management information to the page image converted by the page image conversion unit 408 and outputs the page management information to the BM storage unit 410.

  Here, when the PDL filter 406 reads the PDL from the PDL acquisition unit 402, the dividing unit 422, for example, a print surface (either the front surface or the back surface of the roll paper 26) and a comparison unit set via the UI device 200. In accordance with the comparison result 420, the PDL acquisition unit 402 stores the data so that the data size of the total page image converted at one time by the page image conversion unit 408 is equal to or smaller than the data size that can be stored in the BM storage unit 410. Divide the PDL (job). For example, the dividing unit 422 divides the data size of the total page images of all PDLs for one job stored by the PDL acquisition unit 402 by the data size that can be stored by the BM storage unit 410 (rounded up after the decimal point). The division number of the job is calculated, and the PDL (job) is divided. Further, the dividing unit 422 sets the total page image data size of each divided job to be equal to or smaller than the data size that can be stored in the BM storage unit 410, and the total number of pages of each divided job is substantially the same. The number of divisions may be determined. For example, when the data size of each page image is substantially the same, the total page number of the job is divided by the number of divisions, and the data size of the total page image of each divided job is data that can be stored in the BM storage unit 410. The number of pages for each divided job may be determined so as to be equal to or smaller than the size (storage capacity).

  When the job is divided, the PDL filter 406 requests the page image conversion unit 408 to convert the page images of the divided jobs in descending order (sequentially from the rear job to the front job). Then, page management information is sequentially added from the rear job converted into the page image, and is output to the BM storage unit 410.

  The page image conversion unit 408 converts the PDL requested (output) from the PDL filter 406 into a page image, and outputs the converted page image to the PDL filter 406. For example, the page image conversion unit 408 is a CPSI (Configurable PostScript Interpreter) or the like, and has a RIP (Raster Image Processor) function for converting PDL such as postscript into bitmap data (page image).

A BM (bitmap) storage unit 410 stores a page image to which page management information output from the PDL filter 406 is added (image output spool). The BM storage unit 410 stores all page images for one job when the PDL filter 406 does not divide the job, and page images for each divided job when the PDL filter 406 divides the job. Remember.
Hereinafter, data in one page unit (page image) stored in the BM storage unit 410 may be described as page data.

The page management unit 412 includes an order control unit 424. When the storage of the page image by the BM storage unit 410 is completed (spooling for image output is completed), the page data is paged in the order controlled by the order control unit 424. Is read from the BM storage unit 410 and output to the output image adjustment unit 414.
The order control unit 424 determines, for example, whether the print surface instruction input via the UI device 200 is the front surface or the back surface of the roll paper 26, and reads and outputs page data according to the determination result. Control the order. For example, when the order control unit 424 receives an instruction to print on the surface of the roll paper 26, the page management unit 412 reads and outputs the page data in ascending order of the page numbers without changing the order of the page images. Control the order of data. In addition, when the order control unit 424 receives an instruction to print on the back side of the roll paper 26 for an undivided job, the page management unit 412 changes the page image order and the page management unit 412 changes the page data in descending order of the page numbers. The order of the page data is controlled so as to be read out and output. In addition, when the order control unit 424 receives an instruction to print on the back side of the roll paper 26 for the divided job, the page management is performed in the descending order of the page numbers by changing the order of the page images for each divided job. The order of the page data is controlled so that the unit 412 reads and outputs the page data.

  The output image adjustment unit 414 includes a binding direction setting unit 426, a binding direction determination unit 428, and an image direction control unit 430. The page data received from the page management unit 412 is input via the UI device 200, for example. The page data is developed (pasted) in the coordinate space (bitmap memory managed by the output image adjustment unit 414) of the image forming unit 20 in accordance with the image arrangement information and the like, and the final page image (on the roll paper 26). A bitmap image to be transferred) is generated and output to the output control unit 416.

  The binding direction setting unit 426 sets the binding direction for each page data according to, for example, binding position (binding direction) information at the time of bookbinding input via the UI device 200 or the like. The binding direction determination unit 428 is an instruction to determine whether a print surface instruction input via, for example, the UI device 200 is the front surface or the back surface of the roll paper 26 and to print on the back surface of the roll paper 26. Is determined, for example, whether or not the binding direction set by the binding direction setting unit 426 is parallel (or orthogonal) to the transport direction of the roll paper 26, and the determination result is used as the image direction control unit 430. Output for. The image direction control unit 430 performs control so that, for example, the orientation of the page image is rotated by 180 degrees so that the orientation of the image at the time of bookbinding is aligned with a predetermined direction, for example, according to the determination result of the binding direction determination unit 428. To do.

  The output control unit 416 converts the final page image received from the output image adjustment unit 414 as an electrostatic latent image on each of the photosensitive drums 202a to 202d for each page. 20 output.

Next, an operation example of the image forming apparatus 2 when the control unit 3 executes the image processing program 4 will be described.
FIG. 6 is a flowchart illustrating a first operation example (S10) of the image forming apparatus 2 when the control unit 3 executes the image processing program 4. The first operation example of the image forming apparatus 2 shows a case where the data size of the total page image obtained by converting all PDLs of one job is smaller than the data size that can be stored in the BM storage unit 410.

  As shown in FIG. 6, in step 100 (S100), the CPU 30 determines whether or not the job type transmitted from the mainframe 10 or the host PC 12 is a designated PDL such as a postscript (PS). If it is the designated PDL, the process proceeds to S102, and otherwise, the process ends.

  In step 102 (S102), the order control unit 424 determines whether the print surface instruction input via, for example, the UI device 200 is the front surface or the back surface of the roll paper 26, and instructs to print on the back surface. If it is determined that the instruction is to print on the front side, the process proceeds to S106.

  In step 104 (S104), the page management unit 412 reads page data from the BM storage unit 410 in descending order (from the last page).

  In step 106 (S106), the page management unit 412 reads the page data from the BM storage unit 410 in ascending order (from the first page).

  In step 108 (S108), the binding direction determination unit 428 determines whether the print surface instruction input via the UI device 200 is, for example, the front surface or the back surface of the roll paper 26, and prints on the back surface. If it is determined that the instruction is an instruction, the process proceeds to S110. If it is determined that the instruction is to print on the front surface, the process is terminated.

  In step 110 (S110), the binding direction determination unit 428 determines whether or not the binding direction of the page data is parallel to the conveyance direction of the roll paper 26. For example, the binding direction is the conveyance direction of the roll paper 26. If parallel, the process proceeds to S112, and if not parallel, the process ends.

  In step 112 (S112), the image direction control unit 430 rotates the page image by 180 degrees.

FIG. 7 is a schematic diagram schematically illustrating the orientation of the page image with respect to the print surface when the control unit 3 executes the image processing program 4.
In FIG. 7, a page image formable range (page) 5 corresponds to a cut sheet having a short side in a direction parallel to the conveyance direction of the roll paper 26. As shown in FIG. 7A, when a front surface (front: F) image 50 is formed on the surface of the roll paper 26, and the binding direction is a direction (long-side binding) perpendicular to the conveyance direction of the roll paper 26. The back surface (back: B) image 52 formed on the back surface of the roll paper 26 coincides with the transport direction of the roll paper 26 as shown in FIG.

  Further, as shown in FIG. 7C, a surface (front: F) image 50 is formed on the surface of the roll paper 26, and the binding direction is a direction parallel to the conveyance direction of the roll paper 26 (short-side binding). In some cases, the back surface (back: B) image 52 formed on the back surface of the roll paper 26 is rotated 180 degrees with respect to the transport direction of the roll paper 26 as shown in FIG.

  FIG. 8 is a flowchart illustrating a second operation example (S20) of the image forming apparatus 2 when the control unit 3 executes the image processing program 4. Note that the second operation example of the image forming apparatus 2 includes all cases where the data size of the total page image obtained by converting all PDLs of one job is smaller than the data size that can be stored in the BM storage unit 410. This includes the case where the data size of the total page image obtained by converting the PDL is larger than the data size that can be stored in the BM storage unit 410.

  As shown in FIG. 8, in step 200 (200), the CPU 30 determines whether the data size of the total page image of one job is larger than the storage capacity of the BM storage unit 410 according to the comparison result of the comparison unit 420. If it is larger, the process proceeds to S206. Otherwise, the process proceeds to S202.

  In step 202 (S202), the PDL filter 406 outputs all page images of the job to the BM storage unit 410.

  In step 204 (S204), the control unit 3 performs, for example, the operation of S10 shown in FIG.

  In step 206 (S206), the dividing unit 422 calculates a job division number N.

In step 208 (S208), the CPU 30 calculates a read start page for each divided job. For example, when the division number N is 3, the CPU 30 sets the start page of the first divided job as 1, and calculates the start pages of the second and third divided jobs by the following expressions 1 and 2, for example.
Start page of second divided job = total number of pages ÷ 3 (1)
Start page of the third divided job = total number of pages ÷ 3 × 2 (2)
However, the CPU 30 calculates the calculation results of the above formulas 1 and 2 so that the value of each start page is an integer and the data size of the total page image for each divided job does not exceed the storage capacity of the BM storage unit 410. Process.

  In step 210 (S210), the PDL filter 406 outputs page images from the start page to the end page of the Nth divided job to the BM storage unit 410.

  In step 212 (S212), the control unit 3 performs, for example, the operation of S10 shown in FIG.

  In step 214 (S214), the CPU 30 replaces the value of the division number N with N-1 (N = N-1).

  In step 216 (S216), the CPU 30 determines whether or not the value of N replaced in the process of S214 is smaller than 1, and ends the process if the value of N is smaller than 1, otherwise Then, the process proceeds to S210.

Next, a modified example of the image forming apparatus 2 will be described.
FIG. 9 is a configuration diagram illustrating a configuration of a modified example of the image forming apparatus 2, in which (A) is a configuration diagram when a page image is formed on the surface of the roll paper, and (B) is a diagram of the roll paper. It is a block diagram in the case of forming a page image on the back surface.
Note that, in the modification of the image forming apparatus 2, components that are substantially the same as those constituting the image forming apparatus 2 shown in FIG.

  As shown in FIG. 9B, a modified example of the image forming apparatus 2 is such that an image forming unit is formed on the back surface of the roll paper 26 on which the page image is formed on the front surface (the inner surface of the roll paper 26) and stored in the stack device 24. When 20 forms a page image, a reversal paper feeding device 29 is provided instead of the paper feeding device 22 shown in FIG. The reversing paper feeding device 29 has a twisting unit 208 that reverses the roll paper 26 sent out by the paper feeding device 22 by twisting it. That is, the reversing paper feeding device 29 reverses the outer surface of the roll paper 26 with the front page image formed on the inner surface so as to face the photosensitive drums 202 a to 202 d and supplies the reversed image to the image forming unit 20.

  The reversing paper feeding device 29 may be a device different from the paper feeding device 22, and may be configured by adding a twisting unit 208 to the paper feeding device 22. Further, when the reverse paper feeding device 29 and the paper feeding device 22 are the same device, and the reverse paper feeding device 29 is used as the paper feeding device 22, the twisting unit 208 may not be used. .

  In the above-described embodiment, the case where the control unit 3 included in the image forming apparatus 2 executes the image processing program 4 has been described as an example. However, the present invention is not limited to this. For example, the mainframe 10 or the host PC 12 performs control. The image processing system 1 may form an image on the roll paper 26 by executing the image processing program 4 having the same configuration as the unit 3.

1 is a configuration diagram illustrating a configuration of a printing apparatus according to an embodiment of the invention. FIG. 2 is a configuration diagram illustrating the configuration of an image forming apparatus, where (A) is a configuration diagram when a page image is formed on the surface of roll paper, and (B) is a case where a page image is formed on the back surface of roll paper. FIG. FIG. 4 is a perspective view illustrating a result of forming a plurality of page images on both sides of the roll paper by the image forming apparatus, (A) is a perspective view of the roll paper viewed from the outside, and (B) is a perspective view of the roll paper from the inside. FIG. It is a block diagram which shows the structure of a control part. It is a program block diagram which shows the structure of the image processing program which a control part performs. 6 is a flowchart illustrating a first operation example (S10) of the image forming apparatus when a control unit executes an image processing program. It is the schematic diagram which illustrated typically the direction of the page image with respect to the printing surface when a control part runs an image processing program. 12 is a flowchart illustrating a second operation example (S20) of the image forming apparatus when a control unit executes an image processing program. FIG. 7 is a configuration diagram illustrating a configuration of a modified example of the image forming apparatus, where (A) is a configuration diagram when a page image is formed on the surface of the roll paper, and (B) is a page image on the back surface of the roll paper. It is a block diagram in the case of forming.

Explanation of symbols

1 Printing device 10 Mainframe 12 Host PC
14 Post-processing device 16 Network 2 Image forming device 20 Image forming unit 22 Paper feeding device 24 Stack device 26 Roll paper 28, 29 Reversing paper feeding device 200 UI devices 202a to 202d Photosensitive drum 204 Fixing device 206 Reversing roll 208 Torsion part 3 control Part 30 CPU
32 Memory 34 Storage device 36 Communication IF
38 control bus 4 image processing program 400 input management unit 402 PDL acquisition unit 404 job management unit 406 PDL filter 408 page image conversion unit 410 BM storage unit 412 page management unit 414 output image adjustment unit 416 output control unit 418 size calculation unit 420 comparison Section 422 Division section 424 Order control section 426 Binding direction setting section 428 Binding direction determination section 430 Image direction control section 5 Page image formable range (page)
50 Front image 52 Back image

Claims (4)

Page image forming means for forming a page image on one side of the continuous paper;
A first paper feeding means for supplying continuous paper to the page image forming means;
Storage means for storing continuous paper on which the page image forming means forms a page image;
In order to allow the page image forming unit to form a page image on the other side of the continuous sheet stored by the storage unit, the page image forming unit stores the continuous sheet stored in the storage unit in the reverse order of the storage order. A second sheet feeding means for supplying to
A printing apparatus. When the first paper supply unit supplies continuous paper, the page image forming unit forms page images of odd or even pages on one side of the continuous paper in ascending or descending order, and the second paper supply unit. When the means supplies continuous paper, the page image of the even-numbered or odd-numbered pages that are not formed on the other side of the continuous paper is displayed in the reverse order to the case where the first paper supply means supplies continuous paper. The printing apparatus according to claim 1, further comprising an order control unit that controls a page image forming order of the page image forming unit so that the page image forming unit forms in descending order or ascending order. A binding direction setting means for setting a binding direction for the page image formed by the page image forming means;
Based on the setting of the binding direction setting means, an image direction control means for controlling the direction of the page image formed on one side of the continuous paper by the page image forming means to rotate 180 degrees for each page image;
The printing apparatus according to claim 1, further comprising: An acquisition means for acquiring a page description language;
Page image conversion means for converting the page description language acquired by the acquisition means into a page image;
Storage means for storing data for one or more pages of the page image converted by the page image conversion means;
Size calculation means for calculating the data size of the total page image when the page image conversion means converts all of the page description languages acquired by the acquisition means;
A comparison means for comparing the data size calculated by the size calculation means with the data size that can be stored at once by the storage means;
Based on the comparison result of the comparison unit, the acquisition unit acquires the data size of the total page image converted at one time by the page image conversion unit to be equal to or smaller than the data size that can be stored in the storage unit. A dividing means for dividing the page description language;
Further comprising
The page image forming means includes:
4. The printing according to claim 1, wherein page images obtained by converting the page description language divided by the dividing unit individually by the page image converting unit are sequentially formed on a continuous sheet based on the comparison result of the comparing unit. apparatus.

Images