JP4790363B2 - Information processing apparatus and image forming apparatus having the same - Google Patents

Description

  The present invention relates to an information processing apparatus used in an image forming apparatus such as a printer, a copying machine, a facsimile machine, or a multi-function machine that conveys a sheet to form an image on the sheet, and more particularly to a staple forming apparatus. The present invention relates to an information processing apparatus suitable for performing post-processing such as processing and punching automatically or manually, and an image forming apparatus including the information processing apparatus.

  FIG. 11 shows a case where duplex printing is performed using sheets of different sizes in one print job, and a bundle of sheets is stapled.

When short-side binding is specified under the condition that equal-size edges are bound between sheets of different sizes, as shown in FIG. 11A, the binding margin 1 is set as the feeding direction for small-size sheets. Become parallel. On the other hand, as shown in FIG. 11D, the binding margin 2 is perpendicular to the paper feeding direction for large size paper. In such a case , the small and large size sheets are turned by rotating around the binding margins 1 and 2, respectively, and the turning directions are different from each other by 90 °. Therefore, as shown in FIG. The staple 3 may be driven into the two common areas.

  FIGS. 11B and 11E show the orientations of images printed on the back side of the papers (A) and (D), respectively. FIGS. 11C and 11F show images of (A) and (D), respectively, and the back image is indicated by a dotted line.

  As described above, there is a case where the turning direction is different by 90 ° between the small size paper and the large size paper, and the user's desire to make the turning direction the same regardless of the size cannot be satisfied.

  In addition, as disclosed in Patent Document 1 below, when papers of different sizes are made to have the same side to make a binding margin, as shown in FIG. 5C, a small size paper and a large size paper are used. The sheet bundle must be rotated 90 ° when switching to the sheet, and the user's desire to make the turning direction the same without rotating the sheet bundle cannot be met.

  On the other hand, the post-processing device attached to the image forming apparatus performs post-processing on one of the front end and the rear end in the paper feeding direction, and therefore, for example, the binding margin 1 in FIG. In the case of FIG. 11, the length of the front edge in the paper feeding direction cannot be made uniform, and post-processing cannot be performed.

The present inventors have introduced a concept of “post-processing side” (side on the paper on which post-processing is performed, which is perpendicular to the paper feeding direction at the time of printing), which is different from the binding margin. And found that the above problem can be solved. This post-processing side does not necessarily coincide with the binding margin. In some cases, it is sufficient to specify only one of the post-processing side and the binding margin. Further, there may be a case where the turning direction is not uniquely determined due to an error in either the post-processing side or the binding margin designation. Even if the turning direction is not uniquely determined, if the designation error can be automatically determined, the designation information can be used effectively without re-designation, which is convenient.

  The present invention has been devised based on such an analysis by the present inventors. The purpose of the present invention is that the user can select a set of a post-processing edge and a binding margin according to the user's method. It is an object of the present invention to provide an information processing apparatus and an image forming apparatus provided with the information processing apparatus that can make the turning direction desired by the user by automatically determining the intended turning direction.

  Another object of the present invention is to automatically determine a binding direction based on a specification that can be estimated to be more appropriate when both a binding margin and a post-processing edge that determines the binding direction are specified by the user. Accordingly, an object of the present invention is to provide an information processing apparatus that can be turned in a desired direction and an image forming apparatus including the information processing apparatus.

In the first aspect of the information processing apparatus according to the present invention,
In an information processing apparatus used for an image forming unit that forms an image on a sheet fed based on supplied image information,
Storage means for storing the image information;
Setting means for designating at least one of a post-processing side that is a side on the paper to be post-processed and is a side perpendicular to the paper feeding direction at the time of printing, and a binding margin position;
A paper turning direction determining means for determining a turning direction of a plurality of sheets corresponding to the image information stored in the storage means based on designation by the setting means;
Image information changing means for changing the image information stored in the storage means so that an image formed on the back side of the paper is rotated by 180 ° when the paper turning direction is perpendicular to the paper feeding direction; Have.

  In a second aspect of the information processing apparatus according to the present invention, in the first aspect, the paper turning direction determining means, when the binding margin position is designated by the setting means, the paper based on the binding margin position. The turning direction is determined, and when the binding margin position is not specified by the setting means and the post-processing side is specified, the paper-turning direction is determined based on the post-processing side.

In the third aspect of the information processing apparatus according to the present invention, in the second aspect,
The setting means further specifies a post-processing position along the specified post-processing side,
The paper-turning direction determining means uniquely determines the paper-turning direction by the post-processing position even when the binding margin position is designated by the setting means, and can execute post-processing. If it is determined that the sheet is fed, the paper turning direction is determined based on the post-processing side.

In the fourth aspect of the information processing apparatus according to the present invention, in the third aspect,
The setting means further specifies the type of post-processing along the specified post-processing side,
The paper turning direction determining means can execute post-processing based on the post-processing side designated by the setting means, the post-processing position and the type of post-processing, and the paper size included in the image information. It is determined whether or not.

  In the fifth aspect of the information processing apparatus according to the present invention, in the third or fourth aspect, the setting means displays the paper on the input means, the display means, and the screen of the display means in accordance with the operation of the input means. Display control means for displaying the designated post-processing side on the paper and the post-processing position on or along the designated post-processing side and setting information corresponding to the display;

In the first aspect of the image forming apparatus according to the present invention,
An information processing apparatus according to any one of the above aspects;
Image forming means for forming an image on a fed paper based on image information supplied from the storage means of the information processing apparatus.

In the second aspect of the image forming apparatus according to the present invention, in addition to the first aspect,
Setting information storage means for storing information set by the setting means of the information processing apparatus;
Post-processing means for physically performing post-processing on the paper on which the image is formed by the image forming means;
Control means for causing the post-processing means to perform post-processing based on the stored contents stored in the setting information storage means.

According to the configuration of the first and second aspects of the information processing apparatus, the paper turning direction is automatically determined based on one of the post-processing side designation and the binding margin position designation, and the paper turning direction is perpendicular to the paper feeding direction. In this case, since the image information is changed so that the image formed on the back side of the sheet is rotated by 180 ° , both the post-processing side and the binding margin position can be set. Even if there is a contradiction between the two designations, or only one of the two designations is specified, there is an effect that it is possible to set the turning direction desired by the user.

  According to the configuration of the third aspect of the information processing apparatus, even when the binding margin position is specified, when the post-processing position for fixing the paper turning direction is specified and the post-processing can be executed. Since the paper turning direction is determined based on the post-processing edge designation, that is, when it is considered that the post-processing edge designation is more appropriate than the binding margin position designation, the paper turning direction is determined based on the post-processing edge designation. Since the direction is automatically determined, there is an effect that even if there is an error in the designation by the setting means, it is possible to set the direction of turning desired by the user.

  In addition, even if there is an error in the designation by the setting means, the designated information is properly selected and used to determine the turning direction and the image is rotated accordingly, so that the designated information is effectively used.

  Other objects, configurations and effects of the present invention will become apparent from the following description.

  FIG. 1 is a block diagram showing a schematic configuration of an image forming system to which the present invention is applied.

  This system is configured by connecting a host computer HC to an image forming apparatus 10, for example, a multifunction peripheral. For simplification, a configuration in the case where the image forming apparatus 10 is used as a printer will be described below. In this case, the image forming apparatus 10 forms an image on a sheet based on image information supplied from the host computer HC and information set by the image forming apparatus 10.

  In the image forming apparatus 10, an image information memory 12, a setting information memory 13, an operation unit 14, an image writing control device 15, a paper conveyance control device 16, and a post-processing control device 17 are coupled to the system control device 11.

  The system controller 11 temporarily stores the image information supplied from the host computer HC in the image information memory 12. This image information is supplied from the printing routine of the application program via the printer driver, and is described in PDL (page description language) that does not depend on the resolution of the device. The system control device 11 stores information set by the user by operating the operation unit 14 in the setting information memory 13. The setting information memory 13 is a rewritable nonvolatile memory such as a flash memory. The setting information memory 13 may be configured by an external storage device such as a hard disk.

  The system control device 11 rewrites the content of the image information memory 12 as necessary based on the content of the setting information memory 13 as described later, and supplies this to the image writing control device 15. The image writing control device 15 develops a bitmap of the PDL description image based on this image information, and controls the on / off of the laser beam based on the bitmap data, so that the photosensitive device in the image writing device 15M. A desired electrostatic latent image is formed on the body drum. The image writing device 15M causes toner to adhere to the charging portion on the photosensitive drum, develops the electrostatic latent image, electrostatically transfers the toner image onto a sheet, and then fixes it.

  The system controller 11 drives the paper transport device 16M via the paper transport control device 16 to transport the paper from the paper feed stage to the image writing device 15M, and discharges the paper on which the image has been formed by the image writing device 15M. Paper is discharged onto the tray. With regard to the opposite side image in double-sided printing, the paper is switched back without being discharged, supplied again to the image writing device 15M to form an image on the opposite side of the paper, and then placed on the discharge tray. Eject paper.

  When the information to be post-processed is included in the contents of the image information memory 12, the system control device 11 applies the stapling device 17MS or punching device to the sheet bundle after image formation via the post-processing control device 17. The staple process or the punch process is performed by 17 MP. The punching process may be performed for each sheet.

  FIG. 2 is an explanatory diagram of post-processing setting information.

  In FIG. 2A, one of the post-processing sides L0 to L3 (L) for performing stapling or punching is designated for the longitudinal paper on which the portrait image is formed.

  For the post-processing position, a position on the post-processing side L as viewed from the center O of the paper is designated. Thereby, the post-processing position does not depend on a specific post-processing side. As shown in FIG. 2B, the stapling position designation along the post-processing side L is ST0, ST1, ST2, or no stapling. The staple processing positions ST0 and ST2 are diagonally hit at the end (corner part), and the staple processing position ST1 is two-pointed. The punch processing designation is two-hole punch processing along the post-processing side L or no punch processing. FIG. 2C shows a case of two-hole punch processing for the post-processing side L.

  In this way, the post-processing designation is simplified by using the set of the post-processing side designation and the post-processing position designation along the post-processing side as viewed from the sheet center O, so the post-processing routine is simplified. can do.

  When the post-processing is staple 2-point punching or 2-hole punching, the sheet winding direction of the sheet bundle is determined. However, in the case of one-point staple or no post-processing, the winding direction is not determined. Therefore, not only the post-processing side designation but also the binding margin position designation can be performed, and the turning direction intended by the user is uniquely determined as described later based on the user designation information.

  FIG. 3 is an explanatory diagram showing a case in which both different post-processing edges and binding margins are designated for one staple.

  In order to match the turning direction of the small size paper 20 and the large size paper 30, the left sides of the paper 20 and 30 are set as binding margins 21 and 31. If the direction perpendicular to the binding margin is the paper feeding direction as in the prior art, the paper 30 cannot be laterally fed depending on the model of the image forming apparatus 10 or the length of the long side of the paper 30. Further, since the longitudinal lengths of the binding margins 21 and 31 do not match, the stapling process cannot be performed.

  On the other hand, when only one end of the binding margins 21 and 31 is fastened with the staple 33 as shown in FIG. 3 (E), as shown in FIGS. 3 (C) and (D), the binding margins 21 and 31 are adjacent to the binding margins 21 and 31. The above-mentioned problem can be solved by changing the sides on the staple processing position side to the post-processing sides 22 and 32 and changing the staple processing position ST2 to ST0 (FIG. 2). FIG. 3E shows a state in which the equal length sides of the post-processing sides 22 and 32 are aligned and overlapped.

  FIG. 4 shows a setting screen related to the binding margin and post-processing edge designation, which is displayed on the touch panel provided in the operation unit 14 of FIG.

  On this screen, sheets 20 and 30 of the size set by the application are displayed in an overlapping manner.

  The double-sided / single-sided printing button 40 is a software toggle switch button, and each time it is touched, single-sided printing and double-sided printing are alternately switched.

  Each time the binding margin button 41 is touched, the inside of the rectangle is reversed in black and white. When the binding margin button 41 is in a negative image state, the binding margin position can be designated. When the edge of the paper 20 or the paper 30 is touched, the paper 20 And 30 corresponding edges are selected as the binding margins 21 and 31, and the edges of both binding margins are displayed to coincide with each other, and the binding margin boundary line is displayed together with the characters "binding margin". The binding margin width is displayed on the binding margin button 41, and the value is incremented by 1 mm each time the increment button 42 is touched, and is decremented by 1 mm each time the decrement button 43 is touched.

  As in the case of the binding margin button 41, every time the post-processing side button 44 is touched, the inside of the rectangle is reversed in black and white, and when the post-processing side button 44 is in a negative image state, the post-processing side can be selected and the paper is selected. Touching the side of the paper 20 or the paper 30 will select the corresponding sides of the paper 20 and 30 as the post-processing sides 22 and 32 and display the two post-processing sides to be coincident with the characters “post-processing side”. The boundary line of the post-processing side is displayed. The lateral width of the post-processing side is equal to the binding margin.

  Each time the staple button 45 is touched, the staple processing position ST0, ST1, ST2 or no staple processing in FIG. 2B is sequentially selected for the selected post-processing side, and the staple processing position returns to the staple processing position ST0. . FIG. 4 shows a state where the staple processing position is ST0.

  Each time the punch button 46 is touched, 2-hole punch and no punch processing are alternately selected and displayed for the selected post-processing side.

  In the paper selection combo boxes 47 and 48, the sizes and orientations of the papers 20 and 30 selected by the application are displayed. When an arrow is touched, a pull-down list menu is displayed to change the paper size and orientation. Can be changed to

  When the OK button 49 is touched, the value set on this screen is stored in the setting information memory 13 of FIG.

  Since the post-processing side and the binding margin are specified together as described above even if different size sheets are included for one print job, the post-processing side and the binding margin are specified based on one of the specified post-processing side and binding margin. If the turning direction is determined, the turning direction is unified for the sheet bundle after printing.

  In general, settings relating to paper can be performed by the host computer HC, and the same applies to the present embodiment. That is, the setting screen as shown in FIG. 4 is displayed even when the printer driver installed in the host computer HC is activated. In this case, the display screen may be pointed with a pointing device instead of the touch panel and set by a click operation. When the setting is made in both the host computer HC and the image forming apparatus 10, the setting in the host computer HC is given priority in principle. As an exception, when the setting of the image forming apparatus 10 is prioritized, it depends on it.

  FIG. 5 is a flowchart mainly showing a paper turning procedure by the system controller 11. In the following, the step identification codes in FIG. 5 are shown in parentheses.

(S1) performs the setting of FIG. 4 on the setting screen of the printer driver PD. When a print start button (not shown) on the setting screen is pressed, image information including setting information is supplied from the host computer HC to the image forming apparatus 10, and the system control apparatus 11 temporarily stores it in the image information memory 12. The process proceeds to step S2.

  The following turning direction determination processing is based on the following concept.

  (A) In principle, the direction of turning is determined based on the binding margin (S11).

  (B) If there is no binding margin position designation and only the post-processing side is designated, the turning direction is determined based on the post-processing side (S5).

  (C) In the case where both the binding margin and the post-processing side are designated, when it is estimated that there is a binding margin position designation error, the winding direction is determined based on the post-processing side.

(S2) The system controller 11 refers to the contents of the image information memory 12, if not specified binding margin processing proceeds to step S3, the process proceeds to step S 6 otherwise.

  (S3) The system control device 11 refers to the contents of the image information memory 12 and proceeds to step S4 if no post-processing side is designated, and proceeds to step S5 if present, that is, if only the post-processing side is designated. .

  (S4) Since the turning direction cannot be determined, the system control device 11 displays that the setting is incomplete on the operation unit 14 and returns to step S1. In this case, since the image information is already stored in the image information memory 12, the setting is performed by the operation unit 14 of the image forming apparatus 10 in step S1. The system control device 11 temporarily stores the setting information in the setting information memory 13 and adds the setting value to the image information in the image information memory 12 when the setting is completed.

  (S5) The system control device 11 determines the turning direction based on the post-processing side information included in the contents of the image information memory 12. That is, the direction perpendicular to the designated post-processing side is determined as the turning direction. However, if the content of the image information memory 12 includes information for designating the turning direction for a specific page, the turning direction for the specific page is set as specified. For example, if a portrait image is specified at once, but the width of the table on one page is wide and the landscape image is specified, the turning direction of this page is perpendicular to the turning direction of the other pages. To. This designation is performed by the user in the application.

  FIG. 7 shows a case where different size paper having the same length side is used in one print job, only the post-processing side of the post-processing side and the binding margin is designated, double-sided printing is performed, and the paper bundle is stapled at two points. Show. 7A and 7D show the orientation of the image formed on the surface of the small size paper and the large size paper as character strings, respectively, and the post-processing side is the upper side of the small size horizontal paper and the large size vertical placement. It indicates the top side of the paper. 7B and 7E respectively correspond to the reverse side of the small size paper and the large size paper (in order to write the back side image after the front side image is written by the image forming apparatus 10 and to reverse the paper to switch back, The direction of the image formed on the surface inverted so that it is upside down is indicated by a character string. FIGS. 7C and 7F show the front images on the small-size and large-size sheets, respectively, together with the back-side images indicated by dotted lines. FIG. 7G shows a state where the post-processing sides of FIGS. 7C and 7F are aligned and overlapped and stapled at two points.

  Next, the process proceeds to step S12.

  (S6) If the post-processing side is not specified, that is, if only the binding margin is specified, the process proceeds to step S11, and if not, the process proceeds to step S7.

  FIG. 6 shows a case in which the same size paper is used in one print job and only the binding margin is designated among the post-processing side and the binding margin. In this case, the process proceeds from step S6 to step S11.

  FIG. 10A shows a case where different size paper having no equal length side is used in one print job, only the binding margin is specified among the post-processing side and the binding margin, and the post-processing is not specified. . In this case, the process proceeds from step S6 to step S11, and the two-hole punch process can be manually performed after the print job is completed.

  Here, even if post-processing is designated, if post-processing is not possible, it is considered appropriate to determine the turning direction based on the binding margin designation. Therefore, the following steps S7 and S8 determine whether or not post-processing is possible. If a negative determination is made, the process proceeds to step S11.

  (S7) If the post-processing sides of different size sheets have the same length, the process proceeds to step S8, and if not, the process proceeds to step S9.

  (S8) If post-processing can be performed by superimposing the post-processing edges of different size sheets, the process proceeds to step S9. Otherwise, the post-processing is changed to “not present” (changed to no staple position designation or no punch) and step. Proceed to S11.

  FIG. 10B shows a case where different size paper having no equal length side is used in one print job, both the post-processing side and the binding margin are designated, and two-hole punch processing is performed for each paper. . In this case, the post-processing side designation is a mistake, and the process proceeds from step S8 to steps S9, S10, and S5.

  FIG. 10C shows a case in which a single print job uses different-size paper having the same length side, specifies both the post-processing side and the binding margin, performs double-sided printing, and staples the paper bundle at two points. Is shown. In this case, the post-processing designation is a mistake, so that the process proceeds from step S8 to step S11, and after the print job is finished, the stapling margins 21 and 31 can be manually stapled or punched by two holes.

  (S9) If stapling or punching is specified, that is, if post-processing is performed by the stapling device 17MS or the punching device 17MP, the process proceeds to step S10; otherwise, a post-processing side is specified. If the staple position is not specified and no punch is selected, the process proceeds to step S11.

  (S10) When post-processing determines the turning direction, that is, in this embodiment, if 2-hole punch or 2-point staple is designated as post-processing, the process proceeds to step S5, and if not, the process proceeds to step S11. .

  FIG. 8 shows a case where different size paper having the same length side is used in one print job, both the post-processing side and the binding margin are designated, double-sided printing is performed, and the sheet bundle is stapled at one corner. Yes. In this case, the process proceeds from step S10 to step S11. 8A to 8G correspond to FIGS. 7A to 7G, respectively.

  FIG. 9 shows that a single print job uses different size paper having the same length side, specifies both the post-processing side and the binding margin, performs double-sided printing, and staples the paper bundle at two points on the long side of the small size paper. Shows the case. In this case, the binding margin position designation is a mistake, and the process proceeds from step S10 to step S5. FIGS. 9A to 9G correspond to FIGS. 7A to 7G, respectively.

  (S11) The system control device 11 determines the turning direction based on the binding margin information included in the contents of the image information memory 12. That is, the direction perpendicular to the longitudinal direction of the designated binding margin is determined as the turning direction. However, as in the case of step S5, if the content of the image information memory 12 includes information for designating the turning direction for a specific page, the turning direction for the specific page is set as specified.

  (S12) If it is the back side of double-sided printing, the process proceeds to step S13, and if not, the process proceeds to step S15.

  (S13) If the turning direction determined in step S5 or S11 is perpendicular to the paper feeding direction, the process proceeds to step S14. Otherwise, the process proceeds to step S15.

  (S14) The image information in the image information memory 12 is changed so that the image is rotated by 180 °.

  (S15) The system control device 11 supplies the contents of the image information memory 12 to the image writing control device 15, and the image writing control device 15 forms an image on the paper for the image writing device 15M in response thereto. Let In response to the request from the image writing control device 15, the system control device 11 causes the paper transport device 16M to transport the paper via the paper transport control device 16. Further, the system control device 11 supplies post-processing designation information to the post-processing control device 17, and responds to a request supplied from the paper transport control device 16 when a post-processing enabling condition is satisfied, 17 causes post-processing to be executed. The stapling device 17MS or the punching device 17MP executes post-processing based on the post-processing designation information.

  As described above, according to the first embodiment, based on one of the post-processing edge designation and the binding margin position designation (S2, S3), the turning direction of a plurality of sheets relating to one image forming job is automatically set. Since the image information is changed so that the image formed on the back side of the paper is rotated by 180 ° when the paper turning direction is perpendicular to the paper feeding direction (S12 to S11), post-processing There is an effect that it is possible to set the turning direction desired by the user according to the way of designating the set of the side and the binding margin.

  Also, the post-processing edge and binding margin are specified together except for the above exception even if different size paper is included for one print job, and it is determined based on one of the specified post-processing edge and binding margin. Since the direction is determined, there is an effect that the turning direction is unified for the sheet bundle after printing.

  Even when the binding margin is specified, when the post-processing side is specified and the post-processing position along the side is specified, the paper turning direction is uniquely determined, and the post-processing is executed. (S9, S10) Since the turning direction of a plurality of sheets relating to one image forming job is determined based on the post-processing side designation (S5), that is, the post-processing side designation is more appropriate than the binding margin position designation. If it is considered that, the paper turning direction is automatically determined based on the post-processing side designation, so that even if there is a designation mistake, the turning direction desired by the user can be achieved.

  Furthermore, even if there is a specification mistake, the specified information is properly selected and used to determine the turning direction and the image is rotated accordingly, so even if automatic post-processing is not performed, the purpose can be achieved by manual post-processing, The specified information is effectively used.

  Note that the present invention includes various other modifications.

  For example, in step S4 of FIG. 5, when an error is not displayed and such setting is insufficient, a predetermined turning direction, for example, a turning direction in which the left side is regarded as a binding margin regardless of whether different sizes are mixedly loaded. And the configuration may proceed to step S12.

  In the above embodiment, the case where the image forming apparatus is provided with the automatic post-processing apparatus has been described. However, the present invention is effective even in a configuration in which the post-processing is performed manually without the automatic post-processing apparatus. is there.

  In addition, since the display unit is relatively small in a small printer, the setting unit of the present invention is not limited to the one provided with the GUI, and may be provided with means for displaying characters or symbols.

  The information processing apparatus of the present invention may be a computer separate from the image processing apparatus.

  Furthermore, although the case where the image forming system is a printer has been described in the above embodiment, the present invention can also be applied to a copying machine and a facsimile.

  Further, the image forming unit is not limited to the laser electrostatic transfer method as long as it forms an image on the supplied paper, and of course, may be an ink jet method or the like.

1 is a block diagram showing a schematic configuration of an image forming system to which the present invention is applied. It is post-processing setting information explanatory drawing. It is explanatory drawing which shows the case where both the post-processing edge | side and binding margin which are mutually different are designated by 1 staple. It is a figure which shows the setting screen related to designation | designated of a binding margin and a post-processing side. 4 is a flowchart mainly illustrating a paper- feed direction determining procedure by the system control device 11. FIG. 6 is a process explanatory diagram of FIG. 5, illustrating a case where only the binding margin is designated among the post-processing side and the binding margin using the same size paper in one print job. FIG. 6 is an explanatory diagram of processing in FIG. 5, using different-size paper having equal-length sides in one print job, specifying only the post-processing side out of the post-processing side and the binding margin, performing double-sided printing, and binding two sheets of paper It is a figure which shows the case where dot stapling is carried out. FIG. 6 is an explanatory diagram of processing in FIG. 5, using different-size paper having equal-length sides in one print job, specifying both a post-processing side and a binding margin, performing double-sided printing, and binding a sheet bundle with one-point staple It is a figure which shows the case where it fastens. FIG. 6 is an explanatory diagram of processing in FIG. 5, using different-size paper having equal-length sides in one print job, specifying both post-processing sides and binding margins, performing double-sided printing, and stacking paper bundles into small-size paper lengths. It is a figure which shows the case where 2 edge | side stapling is carried out. FIG. 6 is an explanatory diagram of processing in FIG. 5, where different size paper having no equal length side is used in one print job, only a binding margin is specified among post-processing edges and binding margins, and post-processing is not specified. FIG. FIG. 10 is a diagram for explaining a problem in the related art, and illustrates a case where duplex printing is performed using sheets of different sizes in one print job, and a sheet bundle is stapled by one point.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image forming apparatus 11 System control apparatus 12 Image information memory 13 Setting information memory 14 Operation part 15 Image writing control apparatus 15M Image writing apparatus 16 Paper conveyance control apparatus 16M Paper conveyance apparatus 17 Post-processing control apparatus 17MS Stapling apparatus 17MP Punch apparatus 20, 30 Paper 21, 31 Binding margin 22, 32 Post-processing side 33, 34 Staple 35 Punch hole 40 Duplex / single-sided printing button 41 Binding margin button 42 Increment button 43 Decrement button 44 Post-processing side button 45 Staple button 46 Punch button 47 , 48 Paper selection combo box 49 OK button HC Host computer L0 to L3, L Post processing side ST0 to ST2, ST Staple processing position

Claims (5)

In an information processing apparatus used for an image forming unit that forms an image on a sheet fed based on supplied image information,
Storage means for storing the image information;
At least one of a set of a post-processing side that is a side on the paper on which post-processing is performed and is perpendicular to the paper feeding direction during printing, a post- processing position along the post-processing side, and a binding margin position A setting means for specifying
A paper turning direction determining means for determining a turning direction of a plurality of sheets corresponding to the image information stored in the storage means based on designation by the setting means;
Image information changing means for changing the image information stored in the storage means so that an image formed on the back side of the paper is rotated by 180 ° when the paper turning direction is perpendicular to the paper feeding direction;
And the paper-binding direction determining means, when the binding margin position is designated by the setting means and the post- processing edge and the post-processing position are not designated , the paper-feeding direction determining means is based on the binding margin position. Determining a turning direction, and when the binding margin position is not specified by the setting means and the post-processing side and the post-processing position are specified, the paper-turning direction is determined based on the post-processing side; When the post-processing side, the post-processing position, and the binding margin position are designated by the setting unit, it is determined that the post-processing can be executed, and the post-processing position uniquely determines the paper turning direction. An information processing apparatus characterized in that when it is determined to be determined, the sheet turning direction is determined based on the post-processing side . The setting means further specifies the type of post-processing along the specified post-processing side,
The paper turning direction determining means can execute post-processing based on the post-processing side designated by the setting means, the post-processing position and the type of post-processing, and the paper size included in the image information. To determine whether or not
The information processing apparatus according to claim 1 . The setting means includes an input means, a display means, a paper displayed on the screen of the display means, a designated post-processing side on the paper according to an operation of the input means, and a designated post-processing side or the information processing apparatus according to claim 1 or 2, characterized in that it has a display control means for setting the information corresponding to the display to display a post-processing position along the post-treatment side. An information processing apparatus according to any one of claims 1 to 3 ,
An image forming unit that forms an image on a fed sheet based on image information supplied from the storage unit of the information processing apparatus;
An image forming apparatus comprising: Setting information storage means for storing information set by the setting means of the information processing apparatus;
Post-processing means for physically performing post-processing on the paper on which the image is formed by the image forming means;
Control means for causing the post-processing means to perform post-processing based on the storage contents stored in the setting information storage means;
The image forming apparatus according to claim 4 , further comprising:

Images