JP3824918B2 - Image forming system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, a paper processing unit that performs paper processing such as staples and an image forming unit that forms an image are integrated or separated into a system configuration, and staples and discharges the paper on which an image has been formed. The present invention relates to an image forming system, in particular, a printer, a multi-function copier, or a facsimile is used as an image forming unit, and a paper processing unit is a sheet that performs various post-processing such as punching and sorting in addition to staples. The present invention relates to an image forming system including a processing device.
[0002]
[Prior art]
In a digital copying machine or printer, for example, as disclosed in Japanese Patent Application Laid-Open No. 9-261415, one or two or one corner portion is provided on the top, bottom, left and right of a recording sheet on which an image is transferred and conveyed. One having a stapling function for binding a portion and a punching function for making a hole in the rear end of the conveyed paper is used. An image forming apparatus disclosed in Japanese Patent Laid-Open No. 9-261415 determines the direction of a character string of an image to be copied, performs an appropriate rotation process, and performs a stapling process on recording paper aligned in a certain direction. ing.
[0003]
[Problems to be solved by the invention]
When a document created by a host computer is printed by a printer, the user generally prints without being aware of which size of recording paper is set in which direction on the paper feed tray of the printer. In particular, in recent years, there are many cases where printing is performed in a network environment, and there are many cases where there is no printer device nearby. Further, by placing various types of paper on the paper feed tray and storing the characteristics on the printer device side, more advanced paper handling is required.
[0004]
In such an environment, if a printer device having a post-processing device such as a staple function or a punch function is used to print by specifying a staple function or the like, the printer device performs paper binding as specified. Become. For this reason, depending on the case, it may be stapled in a direction not intended by the user. In addition, if you print a document that has been stapled and punched while the application is running and then print another document without changing the driver settings in the same application, the previous settings may remain alive in some cases. Post-processing may be performed by the method. In addition, in the case of permitting stapling in mixed size loading, unless proper control is performed, the image directions of the bound sheets are not aligned and are difficult to see.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming system capable of solving such problems and executing appropriate stapling processing in accordance with the size, printing direction, and binding designation position of a recording sheet onto which an image has been transferred.
[0006]
[Means for Solving the Problems]
To achieve the object, the first means includes an image forming means for forming an image on a fed paper, a stapling means for bundling and binding the papers formed by the image forming means, and an input image. And an image forming system including a control unit configured to form an image by the image forming unit according to information and perform a binding operation by the stapling unit at a predetermined position. Among the paper, the short side of the large size paper and the long side of the small size paper match in the direction perpendicular to the paper transport direction, and the direction of all the paper images when the paper bundle is bound and opened The binding operation is not performed except in the case of a combination having the same value.
[0007]
With this configuration, the binding is performed only when the direction of all the images is the same when the bound sheet bundle is opened, so that it can be stapled for easy viewing.
[0008]
The second means is an image forming system based on the same premise as the first means, wherein the control means includes a mixture of papers of different sizes, and the short side of the large paper and the paper of the small size among the papers. When the length of the long side matches in the direction perpendicular to the paper transport direction, and the image is formed with the long side as the vertical direction for small size paper and the short side as the vertical direction for large size paper, When small images are formed with the short side up and down for small size paper and the long side up and down for large size paper, and two-point binding is specified, The binding operation is not performed except for binding at two locations on the short side and the long side of the small size paper.
[0009]
With this configuration, the landscape of the small size paper can be changed under the condition that the length of the short side of the large size paper and the length of the long side of the small size paper match in the direction perpendicular to the paper transport direction. The combination with the portrait of the large size paper, or the combination of the A4 size portrait and the A3 size landscape is bound by the stapling means, so that it can be stapled for easy viewing when opened.
[0010]
The third means is an image forming system based on the same premise as the first means, wherein the control means includes a mixture of papers of different sizes, and the short side of the large paper and the small paper among the papers. When the long side length is the same in the direction perpendicular to the paper transport direction, and the image is formed with the long side up and down for small paper and the short side up and down for large paper , Except when upper right diagonal binding, upper left horizontal binding, or upper right horizontal binding is specified for a bundle of sheets formed by overlapping the upper side with respect to the image direction. The binding operation is not performed.
[0011]
With this configuration, the upper right diagonal, the upper left horizontal, and the upper right are provided under the condition that the length of the short side of the large size paper and the length of the long side of the small size paper match in the direction perpendicular to the paper transport direction. When any one of the horizontal bindings is designated, the combination of the A3 portrait and the A4 landscape is bound by the stapling means, so that it can be appropriately stapled so that it can be easily seen when opened.
[0012]
The fourth means is an image forming system based on the same premise as the first means, wherein the control means includes a mixture of papers of different sizes, and the short side of the large paper and the paper of the small size among the papers. The length of the long side is the same in the direction perpendicular to the paper transport direction, and images are formed with the long side direction as the vertical direction for small size paper and the short side direction as the vertical direction for large size paper. In this case, when any one of upper left oblique binding, left two binding, and right two binding is specified for a sheet bundle formed by overlapping the upper side with respect to the image direction, Regardless, the binding operation is not performed.
[0013]
With this configuration, the length of the short side of the large size paper and the length of the long side of the small size paper coincide with each other in the direction orthogonal to the paper transport direction, and the upper left diagonal, When any one of the right two bindings is specified, the combination of the A3 portrait and the A4 landscape is prevented from being bound by the stapling means. Binding is not performed, and inappropriate stapling can be prevented from occurring.
[0014]
The fifth means is an image forming system based on the same premise as the first means, wherein the control means includes a mixture of papers of different sizes, and the short side of the large paper and the paper of the small size among the papers. The length of the long side is the same in the direction perpendicular to the paper transport direction, and images are formed with the short side direction as the vertical direction for small size paper and the long side direction as the vertical direction for large size paper. In this case, the binding is performed unless any one of upper left diagonal binding, left two-point binding, and upper left vertical binding is specified for a sheet bundle formed by overlapping the left side with respect to the image direction. The operation is not performed.
[0015]
With this configuration, the length of the short side of the large size paper and the length of the long side of the small size paper coincide with each other in the direction orthogonal to the paper transport direction, and the upper left diagonal, When any one of the upper left and vertical bindings is designated, the combination of the A3 landscape and the A4 portrait is caused to be bound by the stapling means, so that it can be appropriately stapled so as to be easily seen when opened.
[0016]
The sixth means is an image forming system based on the same premise as the first means, wherein the control means includes a mixture of papers of different sizes, and the short side of the large-size paper and the small-size paper among the papers. The length of the long side is the same in the direction perpendicular to the paper transport direction, and images are formed with the short side direction as the vertical direction for small size paper and the long side direction as the vertical direction for large size paper. In this case, when any one of the upper right diagonal binding and the upper two bindings is specified for a sheet bundle formed by overlapping the left side with respect to the image direction, the binding operation is performed regardless of the specification. It is characterized by not performing.
[0017]
With this configuration, the length of the short side of the large size paper and the length of the long side of the small size paper match in the direction orthogonal to the paper transport direction, and the upper right diagonal and the upper two locations. When any of the bindings is designated, the combination of the A3 landscape and the A4 portrait is not allowed to be bound by the stapling means, so that binding is executed for physically impossible binding designation. Therefore, it is possible to prevent improper stapling from being performed.
[0018]
It should be noted that when paper is fed, a paper feed unit having a plurality of paper feed stages is provided, and the image creating means creates an image based on the image data created on the RAM. The stapling means has a function capable of binding diagonally in the back, vertically in the back, near the front and two places when viewed from the front side with respect to the rear end of the conveyed paper. The image forming means also has a function of rotating the image data 180 degrees when stapling is possible.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0020]
FIG. 1 is an explanatory diagram showing a schematic configuration of an image forming system according to an embodiment of the present invention. The image forming system according to the present embodiment includes a host device (hereinafter referred to as “host computer”) 100 and a printer 200, both of which are communicably connected via a known communication unit 150. . Here, a state in which one host computer 100, a printer 200, and a communication unit 150 are connected is illustrated, but a system in which a plurality of host computers and printers are connected via a network. But the same is true. The printer 200 is provided with a finisher as a paper processing device (not shown). In the finisher, as shown in FIG. 2, the stapling means has a function of binding diagonally in the back, vertically in the back, vertically in front, and two places when viewed from the front side with respect to the rear end of the conveyed paper. A staple processing unit 225 (to be described later) performs a binding process or a punching unit 226 performs a punching process on the rear end portion in the sheet conveyance direction.
[0021]
FIG. 3 is a block diagram showing details of the system of FIG. As shown in the figure, a printer device 200 that prints image data sent from the host computer 100 includes a printer controller 210 and an image forming unit 220. The printer controller 210 includes a host interface 211 that transmits and receives print data and commands from the host computer 100, an image creation unit 212, a memory 213, and an image creation unit interface 214. The image creation unit 212 includes an image data development unit 215 and a post-processing determination unit 216. The image data development unit 215 interprets the print data sent from the host computer 100 and develops it into image data. The post-processing determination unit 216 interprets the command sent from the host computer 100, checks whether or not a combination of staple, punch, and rotation sort has occurred, and determines whether or not the staple is possible and the necessity of rotation by 180 degrees. Then, an instruction for stapling or punching and an instruction for 180 degree rotation are performed. The memory 213 stores various combinations indicating whether or not the various staples and punch patterns can be appropriately stapled or punched. The image forming unit interface 214 sends image data to the image forming unit 220 and exchanges various commands and information with the image forming unit 220.
[0022]
The image forming unit 220 includes an image processing main control unit 221, a plurality of paper supply units 222 a to 222 d, a plotter 223, and a paper discharge unit 224. In response to a command from the printer controller 210, the image processing main control unit 221 controls image forming processing of the plotter 223, paper feeding processing of the paper feeding units 222 a to 222 d, and paper discharging processing of the paper discharging unit 224. The paper feed trays of the paper feed units 222a and 222b are configured so that, for example, recording paper of A4 size or less can be placed horizontally and vertically. The plotter 223 has a rotation sort function for forming images by changing the direction alternately one by one for horizontal and vertical recording paper of the same size, for example, A4 size, and each of the image data sent from the printer controller 210 is supplied. Transfer is performed on recording paper fed from the paper portions 222a to 222d. The paper discharge unit 224 includes a staple processing unit 225 and a punch processing unit 226. The staple processing unit 225 staples one or two places of the recording paper that has been transferred with the image transferred by the plotter 223, and the punch processing unit 226 performs a punch that opens a hole in the trailing edge of the conveyed recording paper. Do. Note that the paper discharge unit 224 may be independent of the finisher and attached to the printer 200.
[0023]
As shown in FIG. 4, the staple processing unit 225 staples patterns 1, 3, 11, and 9, which staple two left and right upper and lower positions of the recording paper 230 to which an image has been transferred. Patterns 15, 13, 5, 7 for stapling the upper and lower left and right positions one by one, and patterns 0, 4, 8, 12 for stapling each corner position one by one, and the upper left and lower two positions simultaneously There are 16 patterns: a pattern 2 for stapling, a pattern 10 for simultaneously stapling the upper and lower two locations on the right side, a pattern 14 for simultaneously stapling the upper two locations, and a pattern 6 for simultaneously stapling the lower two locations. Punching is the same as when stapling two locations simultaneously.
[0024]
Various kinds of information indicating whether or not stapling or punching can be properly performed in the designated printing direction (portrait, landscape), paper size, and paper feeding direction with respect to the staple patterns 0 to 15 for determining the stapling position. The combinations are shown in FIGS. 5 to 8, “Release” indicates that stapling is physically impossible in the target direction, and “0/180” indicates that the recording paper 230 is used for stapling in the target direction. “Release binding” indicates that the staple is released because there is a contradiction between the binding direction of duplex printing and the binding direction of staples. Staple parameters for the pattern, printing direction (portrait, landscape), paper size, and paper feeding direction shown in FIGS. 5 to 8 are stored in advance in the memory 213 of the printer controller 210 as look-up tables 217a to 217d.
[0025]
A portrait is a print direction in which an image is formed (printed) with the short side of the recording paper as the portrait (vertical direction) like a portrait, and a landscape is a long side of the recording paper like a landscape image. The printing direction in which an image is formed (printed) as the vertical direction (horizontal direction).
[0026]
The operation when the print data sent from the host computer 100 is printed by the printer apparatus 200 configured as described above will be described with reference to the flowchart of FIG.
[0027]
When the user creates a document or drawing on the host computer 100 and gives a print instruction, the printer driver of the host computer 100 is activated and the print setting process is started (step S1). In this print setting process, the user can set the print conditions such as print direction (portrait / landscape), paper size, staple location / punch location, whether double-sided printing is possible, and post-processing conditions in the application or printer driver settings. When designated, the printer driver generates a command for print data, print conditions, and post-processing conditions based on the set information and document information (step S2). The host computer 100 transfers the generated print data and command to the printer apparatus 200 via the printer interface (step S3). The host interface 211 of the printer apparatus 200 receives the transferred print data and command and sends them to the image creation unit 212 (step S4).
[0028]
The image data development unit 215 of the image creation unit 212 interprets the sent print data and develops it into image data (step S5). At that time, for example, assignment of staple pattern numbers is performed as shown in FIG. The punch pattern is the same as the two-point binding part. For example, the number is assigned to “0/3” in the staple pattern “2” and “1/2/3” counterclockwise. Further, the post-processing determining unit 216 interprets the received command, and processes the post-processing specified in the command, for example, the staple pattern, and the look-up tables 217a to 217a shown in FIGS. 217d printing direction, designated size, staple location and pattern, duplex designation and binding direction, and a combination of information such as the recording paper 230 actually set in the paper feed trays of the paper feed units 222a to 222d of the image forming unit 220 Are compared to determine whether or not stapling and punching are possible and the necessity of rotation by 180 degrees (step S6). Further, it is checked whether printing on sheets of different sizes is instructed in one job, in this case, a single print output instructed by the host computer 100 (size mixed loading). It is determined whether or not post-processing can be performed on a mixed sheet as one sheet bundle (step S7). If it is determined in this determination that post-processing is possible, if stapling or punching is possible, stapling or punching is set. A pattern (mechanically, the four patterns shown in FIGS. 5 to 8) and an instruction to punch or not are issued. Note that the 180 ° rotation is performed by the image creation unit 212. On the other hand, if it is determined in step S7 that the pattern cannot be mounted together, the staple and punch settings are canceled (step S9).
[0029]
This operation (the operation from step S5 to step S9) is repeated until all of the page data is completed (step S10). When a series of setting processes is completed, the electronic image created by the image creation unit 212 is imaged. The image data is sent to the image processing main control unit 221 via the unit I / F 214 (steps S11, S12, S15). The image processing main control unit 221 forms an image with the plotter 223 based on the sent image data, and prints it on the recording paper sent from the paper feeding unit 222 (steps S16 and S17). The image data of all pages is printed (Yes in step S11), and the image processing main control unit 221 sets the staple or punch when the sent processing conditions are set (steps S13 and S14). The staple processing unit 225 and the punch processing unit 226 of the paper discharge unit 224 execute stapling or punching under the processed conditions, and then the paper is discharged (steps S18 and S19).
[0030]
Regarding the staple setting in step S8, as shown in FIGS. 10A to 10D, a combination of sheets having the same paper size series but different sizes and the same edge length ED, that is, a large size is shown. A combination of paper with the same side length (edge length) ED of the short side of the paper (short edge) and the long side (long edge) of the small size paper, transporting the paper on the short side of the large size paper A3 short edge feed (A3 vertical feed), for example, which is transported so as to be orthogonal to the direction, and A4 long edge feed (A4, lateral feed, for example), which is transported so that the long side of a small size paper is orthogonal to the paper transport direction )In Case of,
(1) Upper right diagonal: FIG. 10 (a) (FIG. 5A1, FIG. 8A2-staple parameter 12)
(2) Upper two places: FIG. 10 (b) (FIG. 5B1, FIG. 8B2-staple parameter 14)
(3) Upper left horizontal: FIG. 10 (c) (FIG. 5C1, FIG. 8C2-staple parameter 15)
(4) Upper right horizontal: FIG. 10 (d) (FIG. 5D1, FIG. 8D2—staple parameter 13)
When each binding location is designated, size-mixed binding of the A3 portrait short edge (A3 vertically long side) and the A4 landscape edge (A4 horizontal long side) is permitted. (1) (FIG. 10 (a)), (3) (FIG. 10 (c)) and (4) (FIG. 10 (d)) correspond to claim 3, and (2) (FIG. 10 ( b)) corresponds to claim 2.
[0031]
Also, the short side (short edge) of the large size paper and the long side (long edge) of the small size paper (edge length) ED are the same paper combination, and the short side of the large size paper. The A3 short edge feed (A3 vertical feed) for conveying the side so as to be orthogonal to the paper conveyance direction and the A4 long edge feed (A3 vertical edge feed) for conveying the long side of the small size paper so as to be orthogonal to the paper conveyance direction ( (A4 landscape feed)
(1) Upper left diagonal: FIG. 11 (a) (FIG. 6E1, FIG. 7E2-staple parameter 0)
(2) Two places on the left: FIG. 11 (b) (FIG. 6F1, FIG. 7F2-staple parameter 2)
(3) Upper left vertical: FIG. 11 (c) (FIG. 6G1, FIG. 7G2-staple parameter 1)
When each binding location is designated, size-mixed binding of the A3 landscape short edge (A3 landscape long side feed) and the A4 portrait long edge (A4 portrait long side feed) is permitted. (1) (FIG. 11 (a)), (2) (FIG. 11 (b)) and (3) (FIG. 11 (c)) correspond to claim 5 and (2) (FIG. 11 ( b)) also corresponds to claim 2.
[0032]
On the other hand, the short side of the large size paper (short edge) and the long side (long edge) of the small size paper have the same side length (edge length) ED. The A3 short edge feed (A3 vertical feed) for conveying the side so as to be orthogonal to the paper conveyance direction and the A4 long edge feed (A3 vertical edge feed) for conveying the long side of the small size paper so as to be orthogonal to the paper conveyance direction ( (A4 landscape feed)
(1) Upper left diagonal: (FIG. 5H1, FIG. 8H2-staple parameter 0)
(2) Two places on the left: (FIG. 5I1, FIG. 8I2-staple parameter 2)
(3) Right two places: (FIG. 5J1, FIG. 8J2-staple parameter 10)
When each binding location is designated, size-mixed binding of the A3 portrait short edge (A3 portrait long side feed) and the A4 landscape skip edge (A4 landscape long side feed) is not permitted. Note that (1) (the combination of FIGS. 5H1 and 8H2), (2) (the combination of FIGS. 5I1 and 8I2) and (3) (the combination of FIGS. 5J1 and 8J2) correspond to claim 4.
[0033]
Further, the short side of the large size paper (short edge) and the long side (long edge) of the small size paper have the same side length (edge length) ED, and the short side of the large size paper. The A3 short edge feed (A3 vertical feed) for conveying the side so as to be orthogonal to the paper conveyance direction and the A4 long edge feed (A3 vertical edge feed) for conveying the long side of the small size paper so as to be orthogonal to the paper conveyance direction ( (A4 landscape feed)
(1) Upper right diagonal: (FIG. 6K1, FIG. 7K2-staple parameter 12)
(2) Top two places: (FIG. 6L1, FIG. 7L2-staple parameter 14)
When each of the binding positions is designated, size-mixed binding of the A3 landscape short edge (A3 landscape long side feed) and the A4 portrait long edge (A4 portrait long side feed) is not permitted. Note that (1) (the combination of FIGS. 6K1 and 7K2) and (2) (the combination of FIGS. 6L1 and 7L2) correspond to the sixth aspect.
[0034]
Claim 1 corresponds to all cases of FIGS.
[0035]
In the above description, A3 size paper and A4 size paper are exemplarily shown in JIS standards as large size paper and small size paper, respectively, but large size paper and small size paper are large size paper. It can be applied to all combinations in which the lengths of the short side and the long side of the small size paper match. As an example of this, in the JIS standard, in addition to the A series paper size, there are papers having a relationship of B series paper sizes, and letter size and double letter size papers.
[0036]
【The invention's effect】
As described above, according to the present invention, sheets of different sizes are mixed, and the length of the short side of the large-sized sheet and the long side of the small-sized sheet of the sheets are orthogonal to the sheet conveyance direction. If the combination matches the direction and the direction of the images on all the sheets is the same when the sheet bundle is bound and opened, the binding is performed. In other cases, the binding is not performed. Appropriate stapling can be executed in accordance with the size of the transferred recording paper, the printing direction, and the binding designation position, so that stapling can be performed only when it is easy to see when opened.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a system configuration of an image forming system according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a relationship between a staple position and a punch position with respect to a sheet.
FIG. 3 is a block diagram showing details of the system of FIG. 1;
FIG. 4 is a diagram illustrating patterns and parameters indicating staple positions.
FIG. 5 is a diagram showing a first combination indicating whether or not stapling can be properly performed;
FIG. 6 is a diagram illustrating a second combination indicating whether or not stapling can be properly performed;
FIG. 7 is a diagram showing a third combination indicating whether or not stapling can be properly performed.
FIG. 8 is a diagram showing a fourth combination indicating whether or not stapling can be properly performed;
FIG. 9 is a flowchart showing the operation of the exemplary embodiment of the present invention.
FIG. 10 is a diagram illustrating an example of combinations that can be bound by size loading and executed in the embodiment of the present invention.
FIG. 11 is a diagram showing another example of a combination that can be bound by size loading and executed in the embodiment of the present invention.
[Explanation of symbols]
100 Host computer
150 Communication means
200 Printer device
210 Printer controller
211 Host interface
212 Image creation unit
213 memory
214 Imager interface
215 Image data development unit
216 Post-processing determination unit
220 Imaging part
221 Image processing main control unit
222 Feeder
223 plotter
224 Paper output unit
225 Staple processing section

Claims (6)

An image forming means for forming an image on the fed paper;
Stapling means for bundling and binding sheets formed by the image forming means;
Control means for forming an image by the image forming means in accordance with input image information, and performing a binding operation by the staple means at a predetermined position;
In an image forming system comprising:
The control means includes a mixture of different sizes of paper, and the short side of the large size paper and the long side of the small size of the paper match in a direction perpendicular to the paper transport direction. An image forming system characterized in that the binding operation is not performed except in a combination in which the directions of images of all sheets are the same when the sheets are bundled and bound and opened. An image forming means for forming an image on the fed paper;
Stapling means for bundling and binding sheets formed by the image forming means;
Control means for forming an image by the image forming means in accordance with input image information, and performing a binding operation by the staple means at a predetermined position;
In an image forming system comprising:
The control means includes a mixture of papers of different sizes, and the short side of the large paper and the long side of the small paper of the papers coincide with each other in the direction perpendicular to the paper transport direction, If the image is formed with the long side up and down on large paper, the short side up and down on large paper, and the short side up and down on small paper and the long side on large paper When two-point binding is specified when images are formed in the vertical direction, except for binding at two locations on the short side of the large paper and the long side of the small paper The image forming system is characterized in that the binding operation is not performed. An image forming means for forming an image on the fed paper;
Stapling means for bundling and binding sheets formed by the image forming means;
Control means for forming an image by the image forming means in accordance with input image information, and performing a binding operation by the staple means at a predetermined position;
In an image forming system comprising:
The control means includes a mixture of papers of different sizes, and the short side of the large paper and the long side of the small paper of the papers coincide with each other in the direction perpendicular to the paper transport direction, If the image is formed with the long side up and down for large paper and the short side up and down for large size paper, the upper side is overlapped with the paper direction. The image forming system is characterized in that the binding operation is not performed unless any one of upper right diagonal binding, upper left horizontal binding, and upper right horizontal binding is designated based on the image direction. An image forming means for forming an image on the fed paper;
Stapling means for bundling and binding sheets formed by the image forming means;
Control means for forming an image by the image forming means in accordance with input image information, and performing a binding operation by the staple means at a predetermined position;
In an image forming system comprising:
The control means includes a mixture of papers of different sizes, and the short side of the large paper and the long side of the small paper of the papers coincide with each other in the direction perpendicular to the paper transport direction, When an image is formed with the long side direction set to the vertical direction for large papers and the short side direction set to the vertical direction for large size papers, a sheet bundle formed by overlapping the upper side with respect to the image direction In contrast, when any one of the upper left diagonal binding, the left two-point binding, and the right two-point binding is designated, the binding operation is not performed regardless of the designation. An image forming means for forming an image on the fed paper;
Stapling means for bundling and binding sheets formed by the image forming means;
Control means for forming an image by the image forming means in accordance with input image information, and performing a binding operation by the staple means at a predetermined position;
In an image forming system comprising:
The control means includes a mixture of papers of different sizes, and the short side of the large paper and the long side of the small paper of the papers coincide with each other in the direction perpendicular to the paper transport direction, A sheet bundle formed by overlapping the left side with respect to the image direction when the image is formed with the short side direction set to the vertical direction for large papers and the long side direction set to the vertical direction for large size papers. The image forming system is characterized in that the binding operation is not performed unless any one of upper left diagonal binding, left two-point binding, and upper left vertical binding is designated. An image forming means for forming an image on the fed paper;
Stapling means for bundling and binding sheets formed by the image forming means;
Control means for forming an image by the image forming means in accordance with input image information, and performing a binding operation by the staple means at a predetermined position;
In an image forming system comprising:
The control means includes a mixture of papers of different sizes, and the short side of the large paper and the long side of the small paper of the papers coincide with each other in the direction perpendicular to the paper transport direction, A sheet bundle formed by overlapping the left side with respect to the image direction when the image is formed with the short side direction set to the vertical direction for large papers and the long side direction set to the vertical direction for large size papers. In contrast, the image forming system is characterized in that, when one of the upper right diagonal binding and the upper two bindings is designated, the binding operation is not performed regardless of the designation.

Images