JP2009028985A - Image forming apparatus and image forming program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable composite-printing on both sides or only on one side upon both-side printing, only by designating a paper feed stage. <P>SOLUTION: Printing mediums for forming images are set in a plurality of paper feed stages 13. The paper feed stage selecting part 9 receives the selection of the specified paper feed stage 13a corresponding to the printing medium to which a both-side printing instruction is given, among the paper feed stages 13, and the selection of composite-printing to perform composite-printing of the composite-printing data on any side when both-side printing is selected. A printing part 11 performs both-side printing and composite-printing to the printing medium. A printing control part 1 controls the feeding of the printing medium from the specified paper feed stage 13a based on the selection of the specified paper feed stage 13a by the paper feed stage selecting part 9, and also, controls the printing part 11 to switch both-side printing and one-side or both-side composite-printing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image forming apparatus and an image forming program. For example, the present invention relates to an improvement in an image forming apparatus and an image forming program used for a copying machine, a facsimile machine, or a multi-function peripheral (MFP).

  In recent years, in image forming apparatuses such as copiers, facsimile machines, and multi-function machines, when printing print data, in addition to double-sided printing on printing paper, another pre-registered print data is overlaid and printed. A composite printing function has also been installed.

  For example, JP 2000-156778 A (Patent Document 1) is an image forming apparatus having a composite printing function.

  That is, Patent Document 1 discloses a reading unit that reads an image of a document, a storage unit that performs a storage process or an erasing process of a form image on a storage area, an image read by the reading unit, and a form image stored in the storage unit. And a control means for prohibiting storage processing or erasure processing of the form image when the composition processing is performed, and during the composition processing of the form image and the document image. The form image used by the user for the composition process is not erased by mistake.

  Furthermore, a composite printing function as disclosed in Japanese Patent Laid-Open No. 2003-223304 (Patent Document 2) has also been proposed.

This patent document 2 has a printer that synthesizes externally received data and designated synthesized data, and a host computer that transmits the synthesized data to the image processing apparatus. The host computer sends the format information corresponding to the recognized composite data, which is the format information for determining the print format, to the printer, making it easy to select a format suitable for the composite data It is a thing.
JP 2000-156778 A JP 2003-223304 A

  However, in the above-described Patent Document 1, when the composite printing process is performed on the image read by the reading unit and the storage form image of the storage unit, it is necessary to select both the paper and the composite printing function from the operation panel. Contrary to the fact that the paper selection screen is always displayed on the initial screen, special function selection such as composite printing can be selected after switching the screen from the initial screen. There is room for improvement.

  In Patent Document 2 described above, format information corresponding to composite data can be transmitted from the host computer to the printer to easily set image composition. However, as in Patent Document 1, while selecting a sheet on the initial screen, The selection of composite printing is often made possible by switching the screen from the initial screen, and the operation is complicated.

  Furthermore, in the image forming apparatus, when performing composite printing in double-sided printing, simply selecting paper and selecting composite printing results in double-sided printing on both sides of the paper. For example, a company name or a company logo mark To create a letterhead or special paper by combining and printing only on one side of the paper, or creating a letterhead or special paper by combining and printing a special form on only one side of the paper, it is difficult to achieve the purpose. Special ingenuity is necessary.

  The present invention has been made to solve such a problem, and it is possible to perform composite printing only by designating a paper feed stage, and to enable switching of single-sided or double-sided composite printing at the time of duplex printing. An object is to provide a forming apparatus and an image forming program.

  In order to solve such a problem, an image forming apparatus according to the present invention instructs a double-sided printing on a print medium among a plurality of paper feed stages in which a print medium on which an image is formed is set. A paper feed stage selection unit that accepts a selection of a specific paper feed stage associated with a double-sided printing instruction to be performed, and accepts a composite selection as to which of the predetermined composite print data is to be composite-printed on which side during the double-sided printing; The printing unit that performs both-sided printing and composite printing on the print medium, paper feed control of the print medium from the specific paper feed stage selected by the paper feed stage selection unit, and the printing unit based on the composite selection And a print control unit for controlling the duplex printing and the composite printing.

  In the image forming apparatus of the present invention, it is also possible to adopt a configuration in which the paper feed stage selection unit accepts a composite print selection on both sides, and the print control unit controls the double-sided print and the double-sided composite print based on the composite print selection. It is.

  In the image forming apparatus of the present invention, the paper feed stage selection unit accepts a composite print selection on one side, and the print control unit controls the double-sided printing and the single-side composite print on the previous page based on the composite print selection. It is also possible to configure.

  In the image forming apparatus of the present invention, the paper feed stage selection unit can accept the selection of the type of the print medium as the specific paper feed stage.

  In the image forming apparatus of the present invention, the paper feed stage selection unit refers to the management table in which the correspondence relationship between the paper feed stages and the printing forms including the duplex printing and the composite printing is set in advance, and A configuration is also possible in which selection of the specific paper feed stage is accepted when the printing mode is set for the paper feed stage.

  In the image forming program according to the present invention, the paper feed stage is supplied to a print control computer that feeds the print medium from a plurality of paper feed stages on which the print medium is set to control double-sided printing and composite printing. Among them, the selection of the specific paper feed stage associated with the double-sided printing instruction for instructing the double-sided printing for the printing medium is accepted, and on which side the predetermined composite print data is combined and printed at the time of the double-sided printing Paper feed stage selection processing that accepts composite selection, and feed control of the print medium from the specific paper feed stage selected in the paper feed stage selection processing for the printing unit that performs duplex printing and composite printing on the print medium And a print control process for controlling the double-sided printing and the composite printing for the printing unit based on the composite selection.

  In the image forming program of the present invention, it is possible to adopt a configuration in which the paper feed stage selection process accepts a composite print selection on both sides, and the print control process controls the double-sided print and double-sided composite print based on the composite print selection. It is.

  In the image forming program of the present invention, the paper feed stage selection process accepts a composite print selection on one side, and the print control process controls the double-sided printing and the single-side composite print on the previous page based on the composite print selection. It is also possible to configure.

  In the image forming program of the present invention, the paper feed stage selection process may accept the selection of the type of print medium as the specific paper feed stage.

  In the image forming program of the present invention, the paper feed stage selection process refers to the management table in which the correspondence relationship between the paper feed stage and the printing mode including the duplex printing and the composite printing is set in advance, and A configuration is also possible in which selection of the specific paper feed stage is accepted when the printing mode is set for the paper feed stage.

  In such an image forming apparatus and image forming program according to the present invention, the paper feed stage selection unit selects a specific paper feed stage associated with a double-sided print instruction for instructing double-sided printing on a print medium, and both sides thereof. The print selection processing unit accepts the composite selection of which side to perform composite printing at the time of printing, and the print control processing unit selects the specific paper feed stage selected for the paper feed stage for the print unit that performs the duplex printing and the composite print on the print medium. The control unit controls the double-sided printing and the composite printing for the printing unit based on the combination selection from the printing medium, so only the single-sided or double-sided printing is specified at the time of double-sided printing. The composite printing can be switched.

  In the present invention, in the configuration that accepts the composite print selection on both sides and controls the double-sided print and double-sided composite print based on the composite print selection, the composite print on both sides can be performed at the time of double-sided printing only by specifying the paper feed stage. Is possible.

  In the present invention, in a configuration that accepts a composite print selection on one side and controls the double-sided printing and the single-side composite printing on the front page side based on the composite print selection, only the paper feed stage is specified, and single-side synthesis is performed at the time of duplex printing. Printing is possible.

  In the present invention, in a configuration that accepts selection of the type of print medium as the specific paper feed stage, double-sided printing or other extended printing is possible by selecting, for example, standard dimensions of the print medium.

  In the present invention, the print form is set for the specific paper feed stage with reference to a management table in which the correspondence relationship between the paper feed stages and the printing forms including the duplex printing and the composite printing is set in advance. In the configuration that accepts the selection of the specific paper feed stage, it is possible to prevent malfunctions without issuing an extended print instruction when duplex printing or other extended printing is not actually set for the specific paper feed stage.

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

  FIG. 1 is a schematic block diagram showing an embodiment of an image forming apparatus according to the present invention. The image forming program according to the present invention will be described in the process of describing the image forming apparatus.

  In FIG. 1, an image forming apparatus A according to the present invention includes an image reading unit 3, a communication unit 5, a storage unit 7, an operation panel unit 9, a printing unit 11, and a paper feed stage 13 with a printing control unit 1 as a center. Configured. Although the image forming apparatus A has various configurations other than this, it is not a main part of the present invention, and thus the description and illustration are omitted.

  The print control unit 1 controls the image reading unit 3, the communication unit 5, the storage unit 7, the operation panel unit 9, the printing unit 11, and the paper feed stage 13, and details will be described later.

  For example, in the image forming apparatus A of FIG. 2, the image reading unit 3 is disposed on the upper part of the main body case 15, and optically reads an image from, for example, a plurality of printed originals under the control of the print control unit 1. A known scanner or the like that generates electronic print data as a print job by performing filter processing, scaling processing, gradation processing, and the like. The generated print data is sequentially stored in the storage unit 7 for each page of the document. It has become. The internal configuration of the image forming apparatus A will be described later.

  The image reading unit 3 optically reads later-described composite print data such as a company name and a company logo, and similarly, one or more pieces can be stored in the storage unit 7.

  Returning to FIG. 1, under the control of the print control unit 1, the communication unit 5 receives print data including images and documents with a predetermined protocol via a network (not shown), for example, with another multifunction device. The interface unit registers and stores received print data in the storage unit 7 for each page. The received print data includes facsimile (FAX) reception.

  The storage unit 7 has a function of storing print data from the image reading unit 3 and the communication unit 5, the above-described composite print data, a management table described later, and a read / write capable of storing an operation program of the print control unit 1, for example. A hard disk (HDD).

  The operation panel unit 9 is disposed, for example, on the upper part of the main body case 15 of the image forming apparatus A in FIG. 2, and a liquid crystal display unit that displays the operation state of the image forming apparatus A and a liquid crystal operation panel that also serves as a touch switch input unit. It is made up of.

  The operation panel unit 9 selects a printing sheet as a printing medium to be printed, executes or cancels printing, and instructs to select duplex printing and composite printing according to the present invention, that is, a specific paper feed stage for duplex printing and duplex printing. In addition to having a function as a paper feed stage selection unit that accepts selection designation of whether to use combined printing at the same time, single-sided composite printing or double-sided composite printing, it has a conventionally known display input function and print control. Controlled by unit 1.

  That is, as shown in FIG. 3, the operation panel section 9 has an operation state display area 9a such as “printing is possible”, “A4”, “A3”, “manual feed”, “specific paper 1”, “specific paper 1”, A plurality of types of image display such as a standard size paper selection display button 9b such as “specific paper 2”, a density setting button 9c such as “density setting”, and a magnification setting button 9d such as “magnification setting” can be displayed. FIG. 3 shows an initial screen (basic), and a “user function” screen or a “function list” screen is displayed by touch selection of a tab.

  As shown in FIG. 4, the operation panel unit 9 refers to a management table in which a correspondence relationship between a plurality of paper feed stages 1 to 4 and printing forms such as double-sided printing and composite printing is set, and the paper feeding is performed. A function for accepting selection of a printing form corresponding to the selection of the stage, that is, synthetic printing is set as the printing form (1) and single-sided (front side) printing is set as the printing form (2) for the paper feeding stage 1 When you have a function to accept them.

  The management table is created under the control of the print control unit 1, and for a plurality of paper feed stages 1 to 4, “paper size”, “paper type”, “printing form (1)”, and “printing form (2) ) ”Is set in advance, and in particular,“ print form (1) ”is set to the presence or absence of composite print data to be composite-printed, for example, form 1 such as a company name or company logo mark, or a form 2 such as a special table. The “printing form (2)” is set to print the composite print data only on one side (front side) or on both sides (front side / back side).

  The printing unit 11 is disposed in the main body case 15 of the image forming apparatus A shown in FIG. 2, and prints the print data in monochrome or color on a conveyance sheet and discharges it. 17 and a function of performing composite printing of designated composite print data on one side or both sides.

  The paper feed stage 13 is a cassette or the like for setting a print medium such as paper, and is formed from a plurality of paper feed stages according to paper sizes such as A4, A3, and manual feed and a setting method. The specific paper feed stage 13a shown in FIG. 2 corresponding to the special “special paper 1”, the normal paper feed stage 13b for normal single-sided printing, and the specific paper feed corresponding to “specific paper 2” dedicated to double-sided composite printing in double-sided printing. There is a stage 13c. In FIG. 2, only three paper feed stages are shown.

  The print control unit 1 includes a CPU, a memory unit that stores an operation program for the CPU, and an input / output interface (none of which are shown). The image reading unit 3, the communication unit 5, the storage unit 7, and the operation described above. The panel unit 9, the printing unit 11, and the paper feed stage 13 are controlled.

  The print control unit 1 has a management table creation function for setting a correspondence relationship between a paper feed stage and a printing form including double-sided printing in advance. For example, the “user function” tab is selected on the operation screen of FIG. Then, the management table of FIG. 4 is displayed and set, stored in the storage unit 7, and has a function of performing reference control from the operation panel unit 9.

  The print control unit 1 controls the printing unit 11 based on the selection of “specific paper 1 and“ specific paper 2 ”from the operation panel unit 9 to control the paper feed from the corresponding specific paper feed stages 13a and 13c. At the same time, the main print data as background and the corresponding composite print data are read out from the storage unit 7 and output to the printing unit 11, and in addition to the double-sided printing control of the print data, as shown in FIG. Alternatively, it has a function of controlling execution of single-side composite printing.

  The print control unit 1 also has a function of determining whether or not the state of the printing paper in the paper discharge unit 21 is face-up (first page side is the upper side).

  FIG. 2 is a schematic diagram showing the internal configuration of the image forming apparatus A described above.

  In FIG. 2, in the lower part of the main body case 15 of the image forming apparatus A, in addition to the specific paper feed stages 13a and 13c and the general paper feed stage 13b, primary paper is fed from these paper feed stages 13a, 13b and 13c. The above-described monochrome and color printing unit 11 is arranged which includes a transport unit that secondary feeds paper and a transfer fixing unit 19 that transfers and fixes print data to form an image.

  When composite printing is performed in the printing unit 11, image data is created and developed so that the composite print data is superimposed on the main print data, and the transfer fixing unit 19 transfers and fixes the image data to the transport paper based on the image data. The image formation is performed in the same manner as in the prior art.

  The reversing conveyance unit 17 has a function of inverting the front and back of the printing paper having an image transferred on one side and returning it to the transfer fixing unit 19, and forms the printing unit 11.

  Above the main body case 15, the image reading unit 3 and the operation panel unit 9 described above are arranged. The print control unit 1, the communication unit 5, and the storage unit 7 place electronic circuits at appropriate positions inside the main body case 15. Formed and arranged.

  A paper discharge tray 23 is disposed downstream of the printing unit 11 following the paper discharge unit 21.

  Next, the operation of the image forming apparatus according to the present invention will be briefly described with reference to the flowchart of FIG. It is assumed that a management table as shown in FIG. 4 is set in advance.

  When “specific paper 1” or “specific paper 2” 9b is touch-selected on the operation panel screen of FIG. 3 and printing is started, in step S1, the print control unit 1 determines whether or not double-sided printing is performed. If printing is not selected, step S1 is NO, and in step S2, the print control unit 1 controls the printing unit 11 to execute normal single-sided printing, and the process ends.

  On the other hand, if double-sided printing is selected and step S1 is YES, in step S3, the print control unit 1 determines whether or not the composite printing instruction is a setting for only the front side, and double-sided composite printing is selected and step S3 is selected. If NO in step S4, the print control unit 1 controls the printing unit 11 to execute double-sided composite printing in double-sided printing, and the process ends.

  If only one side is set and step S3 is YES, the print control unit 1 determines whether or not the state of the printing paper in the paper discharge unit 21 is face-up in step S5.

  If the paper discharge state is not set to face up and step S5 is NO, in step S6, the print control unit 1 instructs the printing unit 11 to print on one side in double-sided printing in the pattern 1 printing mode described later. If printing is finished and the face-up is set and step S5 is YES, the print control unit 1 instructs the printing unit 11 to print the pattern 2 to be described later in step S7. Execute composite printing and finish.

  Here, the printing form of the pattern 1 is in the order of the first page (composite) → the second page (unsynthesized) → the third page (synthesized) → the fourth page (unsynthesized). Second page (not synthesized) → first page (synthesized) → fourth page (not synthesized) → third page (synthesized).

  Therefore, when printing is started by touch-selecting “specific paper 1” 9b on the operation panel screen of FIG. 3 in a state where the discharge state of the printing paper is set to face up, steps S1, S3, Through step S5 and step S6, the print data and the composite print data are printed in the order of the first page (composite) → second page (uncombined) → third page (composite) → fourth page (uncombined). .

  These processing procedures are executed by the image forming program of the present invention.

  Note that when “specific paper 1” or “specific paper 2” 9b is selected on the operation panel unit 9 and the specific paper feed stage 13a is not set to duplex printing in the management data, the duplex printing instruction is not accepted. It is good to display a predetermined error.

  As described above, in the image forming apparatus A according to the present invention, a plurality of paper feed stages 13a and 13c on which printing paper on which an image is formed are set, and duplex printing is performed on the print paper among these paper feed stages 13a and 13c. An operation panel unit that accepts the selection of the specific paper feed stages 13a and 13c associated with the designated double-sided printing instruction and also accepts the synthetic selection on which side the predetermined composite print data is to be composite-printed at the time of double-sided printing. (Paper feed stage selection unit) 9, printing unit 11 that performs composite printing processing of the double-sided printing and composite print data on the printing paper, and the specification selected by the operation panel unit (paper feed stage selection unit) 9 A printing control unit 1 that controls feeding of printing paper from the paper feeding stages 13a and 13c, and controls the double-sided printing and the composite printing by the printing unit based on the composition selection is provided.

  Therefore, the paper feed stages 13a and 13c are linked to the double-sided printing function and the composite printing, and the double-sided printing and the composite printing can be easily performed only by designating the paper name and size, for example, “special paper” or “A4”. In addition, the printing operation is simplified and the operability is improved, and paper can be reduced and saved, contributing to resource saving.

  Moreover, if one-sided composite printing or double-sided composite printing is set and registered in advance for a specific paper feed stage, execution switching of single-sided or double-sided composite printing can be performed by specifying switching of the specific paper feed stages 13a and 13c. Therefore, it is possible to cope with various composite printing forms, and switching can be executed by simply selecting a paper feed stage (specific paper 1 or specific paper 2) without being aware of both sides and one side.

  Further, the paper feed stage selection unit 9 refers to the management table in which the correspondence relation between the paper feed stages 13a to 13c and the printing mode including double-sided printing is set in advance, and duplex printing is set to the specific paper feed stage 13a. Therefore, when the duplex setting is not actually set for the specific paper feed stages 13a and 13c, the selection of the specific paper feed stages 13a and 13c is not accepted, and malfunction can be prevented.

  In the present invention, among the paper feed stages 13, the specific paper feed stages 13a and 13c associated with the double-sided printing instruction for the print paper include paper dimensions such as “specific paper 1”, “specific paper 2”, and “A4”. In addition to the name and name, various display forms such as a paper feed stage number are possible. In short, the object of the present invention can be achieved by carrying out display with a specific paper feed stage.

  In the image forming apparatus A described above, even when “specific paper 1” and “specific paper 2” are selected on the operation panel unit 9, the specific paper feed stages 13a and 13c are not set to duplex printing in the management table. In some cases, it is possible to perform a single-sided printing by interpreting it as a normal single-sided printing instruction without displaying an “error”, and in accordance with this, the print control unit 1, the operation panel unit 9, and the printing unit are configured. 11 may be formed.

  In the embodiment described above, the paper feed stage selection unit that accepts the selection of the specific paper feed stages 13a and 13c associated with the extended print instruction is not limited to the operation panel unit 9, but via an external network. In addition, selection via facsimile reception is also possible, and a paper feed stage for facsimile reception can be associated with a specific paper feed stage.

  In the image forming apparatus A of the present invention, the print medium is not limited to paper, and can be implemented with various sheet media such as a synthetic resin sheet.

  Furthermore, the image forming apparatus A of the present invention can be implemented in an image forming apparatus such as a copying machine, a facsimile machine, or a multifunction machine.

  By the way, in the image forming program according to the present invention, the above-described paper feed tray is supplied to a print control computer that feeds the print medium from a plurality of paper feed trays on which the print medium is set to control double-sided printing and composite printing. Among them, the selection of the specific paper feed stage associated with the double-sided printing instruction for instructing the double-sided printing for the printing medium is accepted, and on which side the predetermined composite print data is combined and printed at the time of the double-sided printing Paper feed stage selection processing that accepts composite selection, and feed control of the print medium from the specific paper feed stage selected in the paper feed stage selection processing for the printing unit that performs duplex printing and composite printing on the print medium And the print control process for controlling the double-sided printing and the composite printing for the printing unit based on the composition selection, the image of the present invention described above Forming apparatus and the same effect can be obtained.

  Moreover, in the image forming program of the present invention, the paper feed stage selection process accepts double-sided or single-sided composite printing selection, and the print control process controls the double-sided printing and double-sided or single-sided composite printing based on the composite printing selection. Configuration, configuration in which the paper feed stage selection process accepts selection of the type of print medium as the specific paper feed stage, and further, the paper feed stage selection process performs printing including double-sided printing and composite printing for the paper feed stage A configuration in which the selection of the specific paper feed stage is accepted when the printing form is set for the specific paper feed stage with reference to a management table in which the correspondence relationship with the form is set in advance is also possible. The same effects as those of the image forming apparatus of the present invention described above can be obtained.

1 is a schematic block diagram illustrating an embodiment of an image forming apparatus according to the present invention. It is a schematic block diagram which shows the image forming apparatus of FIG. It is a figure which shows the display screen in this invention. It is a figure explaining the management data in the image forming apparatus which concerns on this invention. It is a figure which shows the example of a printing result by the image forming apparatus which concerns on this invention. 6 is a flowchart illustrating an operation of the image forming apparatus according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Print control part 3 Image reading part 5 Communication part 7 Storage part 9 Operation panel part (paper feed stage selection part)
11 Printing Section 13 Paper Feed Stages 13a, 13c Specific Paper Feed Stage (Paper Feed Stage)
13b General paper feed tray (paper feed tray)
15 Main body case 17 Reverse conveyance section 19 Transfer fixing section 21 Paper discharge section 23 Paper discharge tray A Image forming apparatus

Claims (10)

A plurality of paper feed stages on which print media to be imaged are set;
Among these paper feed stages, a selection of a specific paper feed stage associated with a double-sided printing instruction for instructing double-sided printing on the print medium is accepted, and predetermined composite print data is synthesized on either side during the double-sided printing. A paper feed stage selection unit that accepts composite selection of printing,
A printing unit that performs the double-sided printing and the synthetic printing on the printing medium;
A print control unit that controls the feeding of the printing medium from the specific paper feed stage selected by the paper feed stage selection unit, and controls the duplex printing and the composite printing by the printing unit based on the combination selection; ,
An image forming apparatus comprising: The image forming apparatus according to claim 1, wherein the paper feed stage selection unit accepts a composite print selection on both sides, and the print control unit controls the double-sided print and the double-sided composite print based on the composite print selection. 2. The image formation according to claim 1, wherein the paper feed stage selection unit accepts selection of composite printing on one side, and the print control unit controls the double-sided printing and single-sided composite printing on the previous page based on the composite printing selection. apparatus. The image forming apparatus according to claim 1, wherein the paper feed stage selection unit accepts selection of a type of the print medium as the specific paper feed stage. The paper feed stage selection unit refers to a management table in which a correspondence relationship between the paper feed stage and the print mode including the duplex printing and the composite print is set in advance, and the print mode is set in the specific paper feed stage. The image forming apparatus according to claim 1, wherein when the setting is set, the selection of the specific paper feed stage is accepted. For a print control computer that controls double-sided printing and composite printing by feeding the printing medium from a plurality of paper feed stages on which the printing medium is set,
A selection of a specific paper feed stage associated with a double-sided printing instruction for instructing double-sided printing on the print medium is received, and predetermined composite print data is synthesized on either side of the paper feed stage during the double-sided printing. Paper feed stage selection processing that accepts composite selection of printing,
The printing unit based on the sheet feeding control of the printing medium from the specific sheet feeding stage selected in the sheet feeding stage selection process and the composition selection for the printing unit that performs the duplex printing and the composite printing on the printing medium. Print control processing for controlling the duplex printing and composite printing for
An image forming program for executing The image forming program according to claim 6, wherein the paper feed stage selection process receives a composite print selection on both sides, and the print control process controls the double-sided print and the double-sided composite print based on the composite print selection. 7. The image formation according to claim 6, wherein the paper feed stage selection process accepts a composite print selection on one side, and the print control process controls the double-sided printing and the single-side composite print on the previous page based on the composite print selection. program. The image forming program according to claim 6, wherein the paper feed stage selection process accepts selection of a type of the print medium as the specific paper feed stage. The paper feed stage selection process refers to a management table in which a correspondence relationship between the paper feed stage and the print mode including the duplex printing and the composite printing is set in advance, and the print mode is set to the specific paper feed stage. The image forming program according to claim 6, wherein when the setting is set, the selection of the specific paper feed stage is accepted.

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