JP2007189721A - Image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus provided with a plurality of functions and capable of solving problems which may be generated due to the existence of the plurality of functions and capable of utilizing respective functions at maximum. <P>SOLUTION: The image forming apparatus having at least one of a copying function, a facsimile function and a printer function is provided with: a determination function for determining a combination axis of images formed on a first surface and a second surface in a binding margin direction in the case of forming images based on image data on the first and second surfaces of an image forming medium of which binding margin is specified; and an image forming means for developing the image data formed on the first and second surfaces so that the images to be formed on the first and second surfaces of the image forming medium are combined on the combining axis of the binding margin direction which is determined by the determination means and forming images on the basis of the developed image data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image forming apparatus having a plurality of functions such as a copying function, a facsimile function, and a printer function.

  In recent years, development of an image forming apparatus having a plurality of functions such as a copying function, a facsimile function, and a printer function, that is, a so-called composite image forming apparatus (or a multifunction copying apparatus) has been actively promoted. One such image forming apparatus can play a plurality of roles such as a copying machine, a facsimile, and a printer.

  The above-described image forming apparatus can play a plurality of roles, but it cannot be said that each function is easy to use.

  As an example, the printing order will be described. There are two types of printing orders: ascending order for printing from the first page to the last page in order, and descending order for printing from the last page to the first page in order. Generally, when executing a copying function, image data to be copied is acquired in order from the last page of the document, and the printing order is descending. When the facsimile function and the printer function are executed, the image order to be printed is acquired in order from the first page of the document, so the printing order is ascending. Regardless of the printing order, if the printed surface is discharged toward the front side or discharged toward the back side, the context of the document and the context of the print result will not match.

  As described above, an image forming apparatus having a plurality of functions has a problem caused by having a plurality of functions. The object of the present invention is made in view of the circumstances as described above, and in an image forming apparatus having a plurality of functions, solves problems caused by the provision of the plurality of functions and makes the best use of each function. An object of the present invention is to provide an image forming apparatus capable of performing the above.

This invention has been made on the basis of the above problems,
According to this invention,
Acquisition means for acquiring an image data file comprising a series of image data of a manuscript;
Storage means for storing the image data file acquired by the acquisition means;
A first image forming mode for forming an image based on the image data file stored in the storage means on the image forming medium in order from the one corresponding to the first page of the document, and the image corresponding to the last page of the document in order. Image forming means for executing a second image forming mode formed on the image forming medium;
When the image forming media subjected to the image forming process by the image forming unit are stacked and discharged in the order of the image forming process, an image is formed on the image forming medium subjected to the image forming process in the first image forming mode. Discharging means for discharging the surface in the direction opposite to the direction in which the surfaces are stacked, and discharging the image forming medium subjected to the image forming process in the second image forming mode toward the direction in which the surfaces on which the images are formed are stacked When,
An image forming apparatus is provided.

Moreover, according to this invention,
A copying function for acquiring an image data file to be copied and executing image forming processing based on the image data file, and a facsimile function for acquiring an image data file to be received by facsimile and executing image forming processing based on the image data file And an image forming apparatus having at least one of printer functions for acquiring an image data file to be printed and executing an image forming process based on the image data file.
Acquisition means for acquiring an image data file comprising a series of image data of a manuscript;
Storage means for storing the image data file acquired by the acquisition means;
A first image forming mode for forming an image based on the image data file stored in the storage means on the image forming medium in order from the one corresponding to the first page of the document, and the image corresponding to the last page of the document in order. Image forming means for executing a second image forming mode formed on the image forming medium;
When the image forming media subjected to the image forming process by the image forming unit are stacked and discharged in the order of the image forming process, the image forming medium subjected to the image forming process on only one side in the first image forming mode has an image. The formed surface is discharged in the direction opposite to the stacking direction, and the image forming medium subjected to image forming processing on both sides in the first image forming mode forms an image of the first page or a page close to the first page. The image forming medium that has been subjected to image forming processing on only one side in the second image forming mode is directed in the direction in which the surface on which the image is formed is stacked. The image forming medium that has been ejected and subjected to image forming processing on both sides in the second image forming mode is a direction in which the surface on which the image of the first page or a page close to the first page is formed is stacked. And a discharge means for discharging towards,
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copying function for acquiring an image data file to be copied and executing image forming processing based on the image data file, and a facsimile function for acquiring an image data file to be received by facsimile and executing image forming processing based on the image data file And an image forming apparatus having a printer function for acquiring an image data file to be printed from an external device and executing an image forming process based on the image data file.
When acquiring an image data file consisting of a series of document image data, the copying function acquires sequentially from the image data corresponding to the last page of the document, and the facsimile function acquires from the image data corresponding to the first page of the document. Acquisition means for acquiring in order, and in the printer function, acquiring in accordance with an instruction from the external device, selecting whether to acquire sequentially from the image data corresponding to the first page of the document or sequentially from the image data corresponding to the last page When,
Storage means for storing the image data file acquired by the acquisition means;
A first image forming mode for forming an image based on the image data file stored in the storage means on the image forming medium in order from the one corresponding to the first page of the document, and the image corresponding to the last page of the document in order. Image forming means for executing a second image forming mode formed on the image forming medium;
When forming an image based on the image data file acquired by the copying function, the second image forming mode is selected, and when the storage medium has a predetermined capacity or more, the image acquired by the facsimile function is selected. When the image based on the data file is formed, the second image forming mode is selected, and the image based on the image data file acquired by the facsimile function is selected when there is no storage medium having a predetermined storage capacity. When forming, select the first image forming mode, and when forming an image based on the image data file acquired by the printer function, the first and second images according to instructions from the external device A selection means for selecting one of the formation modes;
When the image forming media subjected to the image forming process by the image forming unit are stacked and discharged in the order of the image forming process, the image forming medium subjected to the image forming process on only one side in the first image forming mode has an image. The formed surface is discharged in the direction opposite to the stacking direction, and the image forming medium subjected to image forming processing on both sides in the first image forming mode forms an image of the first page or a page close to the first page. The image forming medium that has been subjected to image forming processing on only one side in the second image forming mode is directed in the direction in which the surface on which the image is formed is stacked. The image forming medium that has been ejected and subjected to image forming processing on both sides in the second image forming mode is a direction in which the surface on which the image of the first page or a page close to the first page is formed is stacked. And a discharge means for discharging towards,
An image forming apparatus comprising:

Still further, according to the present invention,
Acquisition means for sequentially acquiring an image data file composed of a series of image data of an original from image data corresponding to the first page of the original or image data corresponding to the last page of the original;
Storage means for storing the image data file acquired by the acquisition means;
In the process of storing, in the storage means, image data files acquired in order from the image data corresponding to the first page of the document by the acquisition means, when the remaining storage capacity of the storage means falls below a predetermined value, The first image forming mode for forming the image based on the image data file on the image forming medium in order from the image corresponding to the first page of the document is executed, and the images acquired in order from the image data corresponding to the last page of the document In the process of storing the data file in the storage means, when the storage capacity of the storage means falls below a predetermined value, the image based on the predetermined image data file is covered sequentially from the one corresponding to the last page of the document. Image forming means for executing a second image forming mode formed on the image forming medium;
When the image forming media subjected to the image forming process by the image forming unit are stacked and discharged in the order of the image forming process, the image forming medium subjected to the image forming process on only one side in the first image forming mode has an image. The formed surface is discharged in the direction opposite to the stacking direction, and the image forming medium subjected to image forming processing on both sides in the first image forming mode forms an image of the first page or a page close to the first page. The image forming medium that has been subjected to image forming processing on only one side in the second image forming mode is directed in the direction in which the surface on which the image is formed is stacked. The image forming medium that has been ejected and subjected to image forming processing on both sides in the second image forming mode is a direction in which the surface on which the image of the first page or a page close to the first page is formed is stacked. And a discharge means for discharging towards,
An image forming apparatus is provided.

Furthermore, according to the present invention,
Facsimile function for acquiring image data file to be received by facsimile and executing image forming process based on this image data file, and printer for acquiring image data file to be printed and executing image forming process based on this image data file In the image forming apparatus having at least one of the functions,
Storage means for storing the image data file acquired by the function;
In the process of storing the predetermined image data file acquired by the function in the storage unit, when the remaining storage capacity of the storage unit becomes a predetermined value or less, the predetermined image data file is sequentially stored from the first page. In the case of an acquired file, the first image forming mode is executed in which an image based on the predetermined image data file is formed on the image forming medium in order from the first page, and the predetermined image data file is acquired in order from the last page. An image forming means for executing a second image forming mode for forming an image based on the predetermined image data file on the image forming medium in order from the last page when
When the image forming media subjected to the image forming process by the image forming unit are stacked and discharged in the order of the image forming process, the image forming medium subjected to the image forming process on only one side in the first image forming mode has an image. The formed surface is discharged in the direction opposite to the stacking direction, and the image forming medium subjected to image forming processing on both sides in the first image forming mode forms an image of the first page or a page close to the first page. The image forming medium that has been subjected to image forming processing on only one side in the second image forming mode is directed in the direction in which the surface on which the image is formed is stacked. The image forming medium that has been ejected and subjected to image forming processing on both sides in the second image forming mode is a direction in which the surface on which the image of the first page or a page close to the first page is formed is stacked. And a discharge means for discharging towards,
An image forming apparatus is provided.

Still further, according to the present invention,
A copy function that acquires image data to be copied and executes image forming processing based on the image data, acquires image data to be transmitted or received by facsimile, transmits image data to be transmitted, and becomes a reception target In an image forming apparatus having at least one of a facsimile function for executing image forming processing based on image data and a printer function for acquiring image data to be printed and executing image forming processing based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
Determining means for determining the vertical and horizontal directions of the image data stored in the storage means based on characteristics at the time of acquisition of different image data depending on the function;
Image processing means for performing image processing on image data stored in the storage means based on a determination result by the determination means;
Image forming means for forming an image based on image data after image processing by the image processing means;
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copy function that acquires image data to be copied and executes image forming processing based on the image data, acquires image data to be transmitted or received by facsimile, transmits image data to be transmitted, and becomes a reception target In an image forming apparatus having at least one of a facsimile function for executing image forming processing based on image data and a printer function for acquiring image data to be printed and executing image forming processing based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
First vertex designating means for designating a specific vertex on the image forming medium in order to form an image in the direction of the specific vertex of the image forming medium;
A second vertex that designates a vertex corresponding to a specific vertex on the image forming medium designated by the first vertex designation means on the image data storage area based on characteristics at the time of acquisition of different image data by the function. Vertex designation means, and
Image forming means for developing image data in the direction of the vertex on the image data storage area designated by the second vertex designation means, and forming an image based on the image data developed on the image data storage area; ,
An image forming apparatus is provided.

Still further, according to the present invention,
A copy function that acquires image data to be copied and executes image forming processing based on the image data, acquires image data to be transmitted or received by facsimile, transmits image data to be transmitted, and becomes a reception target In an image forming apparatus having at least one of a facsimile function for executing image forming processing based on image data and a printer function for acquiring image data to be printed and executing image forming processing based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
First area designating means for designating a specific area on the image forming medium in order to form an image leaving a margin in the specific area of the image forming medium;
A second area that designates an area corresponding to a specific area on the image forming medium designated by the first area designation means on the image data storage area based on characteristics at the time of acquisition of different image data by the function. Area designation means,
Image forming means for developing image data outside the area on the image data storage area designated by the second area designation means, and forming an image based on the image data developed on the image data storage area;
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copy function that acquires image data to be copied and executes image forming processing based on the image data, acquires image data to be transmitted or received by facsimile, transmits image data to be transmitted, and becomes a reception target In an image forming apparatus having at least one of a facsimile function for executing image forming processing based on image data and a printer function for acquiring image data to be printed and executing image forming processing based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
First vertex designating means for designating a specific vertex on the image forming medium in order to form an image in the direction of the specific vertex of the image forming medium;
A second vertex that designates a vertex corresponding to a specific vertex on the image forming medium designated by the first vertex designation means on the image data storage area based on characteristics at the time of acquisition of different image data by the function. Vertex designation means, and
The image data is expanded in the direction of the vertex on the image data storage area designated by the second vertex designating means, and a cornering process for forming an image based on the image data developed on the image data storage area is executed. First image forming means for
A second image forming means for centering and developing the image data on the image data storage area and executing a centering process for forming an image based on the image data developed on the image data storage area;
First area designating means for designating a specific area on the image forming medium in order to form an image while leaving a margin as a binding margin in a specific area of the image forming medium;
A second area that designates an area corresponding to a specific area on the image forming medium designated by the first area designation means on the image data storage area based on characteristics at the time of acquisition of different image data by the function. Area designation means,
The image data is expanded outside the area on the image data storage area designated by the second area designating means, and a binding margin process for forming an image based on the image data developed on the image data storage area is executed. A third image forming means;
When the processing by the first or second image forming unit and the third image forming unit is instructed redundantly, cornering processing and centering for the direction of the margin left as a binding margin by the third image forming unit The processing is invalidated, and an image is developed in the margin direction left as a binding margin on the image data storage area and developed, and an image based on the image data developed on the image data storage area is formed. Image forming means;
An image forming apparatus is provided.

Still further, according to the present invention,
A copy function that acquires image data to be copied and executes image forming processing based on the image data, acquires image data to be transmitted or received by facsimile, transmits image data to be transmitted, and becomes a reception target In an image forming apparatus having at least a facsimile function among a facsimile function for executing image forming processing based on image data and a printer function for acquiring image data to be printed and executing image forming processing based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
First vertex designating means for designating a specific vertex on the image forming medium in order to form an image in the direction of the specific vertex of the image forming medium;
A second vertex that designates a vertex corresponding to a specific vertex on the image forming medium designated by the first vertex designation means on the image data storage area based on characteristics at the time of acquisition of different image data by the function. Vertex designation means, and
The image data is expanded in the direction of the vertex on the image data storage area designated by the second vertex designating means, and a cornering process for forming an image based on the image data developed on the image data storage area is executed. First image forming means for
A second image forming means for centering and developing the image data on the image data storage area and executing a centering process for forming an image based on the image data developed on the image data storage area;
Control means for invalidating cornering processing or centering processing in the sub-scanning direction when processing by the first or second image forming means is instructed in the facsimile function;
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
In order to form a series of image data for a plurality of pages on a single image forming medium, a plurality of pages corresponding to one page of the image data storage area are obtained based on characteristics obtained when different image data are acquired by the function. Determining means for determining a development order and a development position of a series of image data;
Based on the determination result by the determining means, a series of image data for a plurality of pages is expanded on an image data storage area for one page, and a plurality of pages corresponding to the image data storage area for one page is expanded. Image forming means for forming an image based on a series of image data on a single image forming medium;
An image forming apparatus is provided.

Still further, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
In order to form image data for two pages or four pages on a single image forming medium, in addition to vertical writing or horizontal writing information of an original, image data based on characteristics at the time of acquisition of different image data by the above function Determining means for determining a development order and a development position of a series of image data for a plurality of pages on a storage area;
Based on the determination result by the determination means, the image data for two pages or four pages is reduced and expanded on the image data storage area for one page, and is expanded on the image data storage area for one page. Image forming means for forming an image based on image data for two pages or four pages on one image forming medium;
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copying function for acquiring image data to be copied and executing image forming processing based on the image data, a facsimile function for acquiring image data to be received by facsimile and executing image forming processing based on the image data, and a printing target In an image forming apparatus having at least a facsimile function among printer functions for acquiring image data and executing image forming processing based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
In order to form a series of image data for a plurality of pages on a single image forming medium, a series of image data for a plurality of pages on an image data storage area based on characteristics obtained when different image data is acquired by the function. Determining means for determining a deployment order and a deployment position of
Based on the determination result by the determining means, a series of image data for a plurality of pages is reduced and developed on an image data storage area, and the series of image data for a plurality of pages developed on the image data storage area An image forming means for executing a connection process for forming an image based on a single image forming medium;
Designating means for designating in advance a lower limit of resolution permitting connection processing in the facsimile function;
Control means for invalidating the connection processing executed based on the image data when the resolution of the image data acquired in the facsimile function is lower than the resolution specified by the specifying means;
An image forming apparatus is provided.

Still further, according to the present invention,
At least one of a copying function for acquiring image data to be copied and executing an image forming process based on the image data, and a facsimile function for acquiring image data to be transmitted by facsimile and transmitting the image data In an image forming apparatus having
Acquisition means for dividing and acquiring image data obtained from a single original;
Storage means for storing the divided image data acquired by the acquisition means;
In order to output each of the divided image data stored in the storage means to a single image forming medium, the development of the divided image data on the image data storage area based on the characteristics at the time of obtaining different image data by the function A determining means for determining an order and a deployment position;
Based on the determination result by the determining means, each of the divided image data is expanded on the image image data storage area, and an image based on the divided image data expanded on the image data storage area is stored on one image forming medium. Image forming means for forming;
An image forming apparatus is provided.

Furthermore, according to the present invention,
At least one of a copying function for acquiring image data to be copied and executing an image forming process based on the image data, and a facsimile function for acquiring image data to be transmitted by facsimile and transmitting the image data In an image forming apparatus having
Acquisition means for acquiring image data obtained from one original by dividing it into image data for two pages or four pages;
Storage means for storing the divided image data acquired by the acquisition means;
In order to output each of the divided image data stored in the storage unit to one image forming medium, in addition to the vertical writing or horizontal writing information of the original, 1 is based on the characteristics at the time of acquiring different image data depending on the function. Determining means for determining the development order and development position of each of the divided image data on the image data storage area for a page;
Based on the determination result by the determining means, each of the divided image data is expanded on an image image data storage area for one page, and an image based on the divided image data expanded on the image data storage area for one page is obtained. Image forming means for forming on a single image forming medium;
An image forming apparatus is provided.

Still further, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
Acquisition means for acquiring image data defined in the main scanning direction and the sub-scanning direction;
Storage means for storing the image data acquired by the acquisition means;
When forming an image based on the image data stored in the storage means on the first surface and the second surface of the image forming medium, the first surface and the second surface based on the characteristics at the time of acquiring different image data depending on the function. Determining means for determining the coupling axis of the image formed on the surface in the main scanning direction or the sub-scanning direction;
Formed on the first surface and the second surface so that the images formed on the first surface and the second surface of the image forming medium are combined with the connecting axis in the main scanning direction or the sub-scanning direction determined by the determining means. Image forming means for expanding the image data to be formed and forming an image based on the expanded image data;
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
When an image based on the image data stored in the storage means is formed on the first and second surfaces of the image forming medium for which the binding margin is specified, the images formed on the first and second surfaces are combined. Determining means for determining the axis in the binding margin direction;
Image data formed on the first surface and the second surface so that the images formed on the first surface and the second surface of the image forming medium are combined by the binding axis in the binding margin direction determined by the determining means. And image forming means for forming an image based on the developed image data,
An image forming apparatus is provided.

Still further, according to the present invention,
A copying function for acquiring image data to be copied and executing image forming processing based on the image data, a facsimile function for acquiring image data to be received by facsimile and executing image forming processing based on the image data, and a printing target In an image forming apparatus having a printer function for acquiring image data and executing image forming processing based on the image data,
Acquisition means for acquiring image data defined in the main scanning direction and the sub-scanning direction;
Storage means for storing the image data acquired by the acquisition means;
When executing double-sided processing for forming an image based on the image data stored in the storage unit on the first and second sides of the image forming medium, the image data acquired by the copying function and the printer function is double-sided. In the case of an object, the coupling axis of the images formed on the first and second surfaces of the image forming medium is determined in the main scanning direction, and the image data acquired by the facsimile function is an object to be processed on both sides. Determining means for determining the coupling axis in the sub-scanning direction;
Formed on the first surface and the second surface so that the images formed on the first surface and the second surface of the image forming medium are combined with the connecting axis in the main scanning direction or the sub-scanning direction determined by the determining means. Image forming means for expanding the image data to be formed and forming an image based on the expanded image data;
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copying function for acquiring image data to be copied and executing image forming processing based on the image data, a facsimile function for acquiring image data to be received by facsimile and executing image forming processing based on the image data, and a printing target In an image forming apparatus having a printer function for acquiring image data and executing image forming processing based on the image data,
Acquisition means for acquiring image data defined in the main scanning direction and the sub-scanning direction;
Storage means for storing the image data acquired by the acquisition means;
When executing double-sided processing for forming an image based on the image data stored in the storage unit on the first and second sides of the image forming medium, the image data acquired by the copying function and the printer function is double-sided. When the binding margin is specified for the target and the image forming medium, the coupling axis of the images formed on the first surface and the second surface of the image forming medium is determined in the binding margin direction, and the copying function and When the image data acquired by the printer function is a double-sided processing target and the binding margin is not specified for the image forming medium, the coupling axis is determined in the main scanning direction, and the image data acquired by the facsimile function is double-sided. A determining means for determining a coupling axis in the sub-scanning direction in the case of a processing target;
The first surface and the first surface so that the images formed on the first surface and the second surface of the image forming medium are combined with the binding axis in the binding margin direction, the main scanning direction, or the sub-scanning direction determined by the determining unit. Image forming means for developing image data formed on the second surface and forming an image based on the developed image data;
An image forming apparatus is provided.

Still further, according to the present invention,
At least one of a copying function for acquiring image data to be copied and executing an image forming process based on the image data, and a facsimile function for acquiring image data to be transmitted by facsimile and transmitting the image data In an image forming apparatus having
Acquisition means for acquiring image data obtained from the first side and the second side of the document;
Storage means for storing the image data acquired by the acquisition means;
When the images based on the image data stored in the storage means are formed on the first surface and the second surface of the image forming medium, the positional relationship between the first surface and the second surface is the same as that of the document. Rotation processing means for performing rotation processing on image data obtained from the first surface or the second surface of the document as needed based on characteristics at the time of acquisition of image data different depending on functions;
Image forming means for executing image forming processing based on image data acquired by the acquiring means and subjected to rotation processing as necessary;
An image forming apparatus is provided.

Furthermore, according to the present invention,
At least one of a copying function for acquiring image data to be copied and executing an image forming process based on the image data, and a facsimile function for acquiring image data to be transmitted by facsimile and transmitting the image data In an image forming apparatus having
Acquisition means for acquiring image data obtained from the first side and the second side of the document;
Storage means for storing the image data acquired by the acquisition means;
Facsimile so that when the image based on the image data stored in the storage means is formed on the first surface and the second surface of the image forming medium, the positional relationship between the first surface and the second surface is the same as that of the original. Rotation processing means for applying an image rotation process of 180 degrees to the image data of the second side of the document acquired by the function;
Image forming means for executing image forming processing based on image data acquired by the acquiring means and subjected to rotation processing as necessary;
An image forming apparatus is provided.

Still further, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
First storage means for storing image data acquired by the acquisition means;
Rotation processing means for performing image rotation processing in accordance with image rotation data as necessary for the image data stored in the first storage means;
Image forming means for forming an image based on the image data acquired by the acquisition means and subjected to rotation processing as necessary on an image forming medium;
Medium holding means for holding an image forming medium on which an image is formed by the image forming means;
A staple process is performed on the image forming medium held by the medium holding unit, and the staple position with respect to the image forming medium is fixed, or the staple position with respect to the image forming medium is set to a predetermined position. Stapling means capable of executing stapling by one of the variable second stapling processes;
First image rotation data required for performing staple processing at the target position by the first staple processing, and second required for performing staple processing at the target position by the second staple processing. Second storage means for storing the image rotation data of
The rotation processing unit is instructed to perform image rotation processing according to the first image rotation data when the first staple processing is executed, and image rotation processing according to the second image rotation data when the second staple processing is executed. Control means to
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
First storage means for storing image data acquired by the acquisition means;
Rotation processing means for performing image rotation processing in accordance with image rotation data as necessary for the image data stored in the first storage means;
Image forming means for forming an image based on the image data acquired by the acquisition means and subjected to rotation processing as necessary on an image forming medium;
Medium reversing means for reversing the image forming medium on which the image is formed by the image forming means, if necessary;
Medium holding means for holding an image forming medium on which an image is formed by the image forming means;
A staple process is performed on the image forming medium held by the medium holding unit, and the staple position with respect to the image forming medium is fixed, or the staple position with respect to the image forming medium is set to a predetermined position. Stapling means capable of executing stapling by one of the variable second stapling processes;
First image rotation data required for performing staple processing at the target position by the first staple processing, and second required for performing staple processing at the target position by the second staple processing. Second storage means for storing the image rotation data of
The rotation processing unit is instructed to perform image rotation processing according to the first image rotation data when the first staple processing is executed, and image rotation processing according to the second image rotation data when the second staple processing is executed. First control means to:
Second control means for instructing the medium reversing means to invert the image forming medium in order to perform stapling at a target position when the first or second stapling is performed;
An image forming apparatus is provided.

Still further, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
A first image forming means for forming an image based on the image data on an image forming medium having a specified size specified by the image data;
A second image forming means for forming an image based on the image data on an image forming medium having a size different from the specified size when an image forming medium having a specified size specified by the image data cannot be obtained;
Interruption means for interrupting the image forming process based on the image data when an image forming medium having a designated size designated by the image data cannot be obtained;
Control means for instructing processing by the second image forming means or processing by the interruption means according to a function when an image forming medium having a specified size specified by image data cannot be obtained;
An image forming apparatus is provided.

Furthermore, according to the present invention,
A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
A first image forming means for forming an image based on the image data on an image forming medium having a specified size specified by the image data;
When an image forming medium having a specified size specified by the image data cannot be obtained and an image forming medium having a size larger than the image forming medium having the specified size can be obtained, the image forming medium having the specified size can be obtained. A second image forming means for forming an image based on the image data on an image forming medium larger in size than the image forming medium;
An image forming medium having a specified size specified by the image data and an image forming medium having a size larger than the image forming medium having the specified size cannot be obtained. A third image forming unit that reduces and forms an image based on the image data on an image forming medium of a size smaller than the image forming medium of a specified size when an image forming medium can be obtained;
Instructing means for instructing a lower limit of a reduction magnification that permits image formation by the third image forming means;
In the image forming process by the third image forming unit, when it is necessary to execute a reduction scaling process that is lower than the reduction scaling ratio instructed by the instruction unit, the image forming process by the third image forming unit is performed. First interrupting means for interrupting;
A second interrupting unit for interrupting the image forming process based on the image data when an image forming medium having a size specified by the image data cannot be obtained;
When the image forming medium having the specified size specified by the image data cannot be obtained when executing the copying function and the printer function, the processing by the second interrupting means is instructed, and the image forming of the specified size is performed when the facsimile function is executed. Control means for instructing processing by the third image forming means including processing by the second image forming means or the first interruption means when a medium cannot be obtained;
An image forming apparatus is provided.

  According to the present invention, it is possible to provide an image forming apparatus that can solve problems caused by having a plurality of functions and can make maximum use of each function.

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

  First, common items of the first to eighth embodiments will be described. FIG. 1 is a perspective view showing an example of the appearance of an image forming apparatus (multifunction type copying apparatus) according to an embodiment of the present invention.

  An automatic document feeder (hereinafter referred to as ADF) 207 that also serves as a document cover and automatically feeds sheet-like documents one by one is provided at the top of the apparatus main body 200 so as to be openable and closable. An operation panel 202 provided with various operation keys and various displays for instructing copy start and copy start is provided on the upper front portion of the apparatus main body 200. The operation panel 202 will be described in detail later.

  On the right side of the apparatus main body 200, a paper feed cassette 257 that can store a small capacity of paper and a large capacity paper feed cassette 255 that can store a large capacity of paper are detachably provided. The paper feed cassette 257 includes a manual feed tray 256 for manually supplying paper.

  At the bottom of the apparatus main body 200, paper feed cassettes 252, 253, and 254 are detachably provided. Each of these paper feed cassettes stores sheets of the same size in the horizontal direction and the vertical direction, and is selected as necessary. On the left side of the apparatus main body 200, a paper discharge tray 362 for receiving copied paper is provided.

  An insertion port 204 for inserting a magneto-optical disk as a storage medium for storing image data and the like is provided below the operation panel 202 on the entire surface of the apparatus main body 200. The magneto-optical disk apparatus ( (Not shown) is provided.

  On the rear surface of the apparatus main body 200, a parallel port (not shown), a serial port (not shown), a SCSI (FIG. 3), and the like are provided. The parallel port connects the apparatus and an external device such as a PC (personal computer) when the apparatus operates as a printer. The serial port connects the apparatus and an external device such as a PC for reading internal management information of the apparatus and setting functions of the apparatus during maintenance of the apparatus. The SCSI performs command / data communication between this apparatus and an external controller operating as a master.

  FIG. 2 is a schematic diagram structurally showing an example of the internal configuration of the composite image forming apparatus of FIG.

  In the apparatus main body 200, a scanner unit 50 as an acquisition unit for acquiring image data and a printer unit 52 as an image forming unit are provided for realizing a copying function and a facsimile function.

  On the upper surface of the apparatus main body 200, a document placing table 212 made of transparent glass on which a reading object, that is, a document D is placed, and an ADF 207 for automatically sending the document on the document placing table 212 are arranged. ing. The ADF 207 is disposed so as to be openable and closable with respect to the document placing table 212, and also functions as a document presser that brings the document D placed on the document placing table into close contact with the document placing table 212.

  The ADF 207 includes a document tray 208 on which the document D is set, an empty sensor 209 that detects the presence or absence of the document, a pickup roller 214 that picks up the document one by one from the document tray, and a paper feed roller 215 that conveys the extracted document. An aligning roller pair 216 that aligns the leading edge of the document, an aligning sensor 286 that is provided upstream of the aligning roller pair 216 and detects the arrival of the document, and a size sensor 287 that detects the size of the document D A conveying belt 218 disposed so as to cover almost the entire document placing table 212. Then, a plurality of documents set on the document tray 208 are taken out from the bottom page, that is, the last page in order, aligned by the aligning roller pair 216, and then placed on the document by the conveying belt 218. It is conveyed to a predetermined position on the table 212.

  In the ADF 207, a reverse roller 220, a non-reverse sensor 221, a flapper 222, and a paper discharge roller 223 are disposed at the end opposite to the aligning roller pair 216 with the conveyance belt 218 interposed therebetween. A document D whose image information has been read by a scanner unit 50 to be described later is sent out from the document placing table 212 by a conveyor belt 218, and the document is discharged on the upper surface of the ADF 207 via the reverse roller 220, the flapper 221, and the discharge roller 222. It is discharged onto the part 224.

  When reading the back side of the document D, the document D conveyed by the conveyance belt 218 is reversed by the reversing roller 220 by switching the flapper 222, and then again is transferred to a predetermined position on the document table 212 by the conveyance belt 218. Sent to location.

  The ADF 207 includes a paper feed motor that drives the pickup roller 214, the paper feed roller 215, and the aligning roller pair 216, and a transport motor that drives the transport belt 218, the reverse roller 220, and the paper discharge roller 223. Yes.

  The scanner unit 50 disposed in the apparatus main body 200 includes a light source 225 such as a fluorescent lamp that illuminates the document D placed on the document table 212 and a first light that deflects reflected light from the document D in a predetermined direction. 1 mirror 226 is provided. The light source 225 and the first mirror 226 are attached to a first carriage 227 disposed below the document table 212. On the first carriage 216, a size sensor 217 for detecting the size of the document placed on the document placement table 212 is attached. The first carriage 227 is disposed so as to be movable in parallel with the document placing table 212, and is reciprocated below the document placing table by a drive motor via a toothed belt (not shown).

  A second carriage 228 that is movable in parallel with the document placement table is disposed below the document placement table 212. Second and third mirrors 230 and 231 for sequentially deflecting reflected light from the document D deflected by the first mirror 226 are attached to the second carriage 228 at right angles to each other. The second carriage 228 is driven with respect to the first carriage 227 by a toothed belt or the like that drives the first carriage 227, and the document placement table at a half speed with respect to the first carriage. It is moved in parallel along 212.

  Further, below the document table 212, an imaging lens 232 that focuses the reflected light from the third mirror 231 on the second carriage 228, and the reflected light focused by the imaging lens is received and photoelectrically received. A CCD sensor 234 for conversion is provided. The imaging lens 232 is disposed so as to be movable via a driving mechanism in a plane including the optical axis of the light deflected by the third mirror 231. When the imaging lens 232 moves, the reflected light is reflected at a desired magnification. Form an image. The CCD sensor 234 photoelectrically converts the incident reflected light and outputs an electrical signal corresponding to the read document D.

  On the other hand, the printer unit 52 includes a laser exposure device 240 that functions as an exposure unit. The laser exposure apparatus 240 includes a semiconductor laser 241 as a light source, a polygon mirror 236 as a scanning member that continuously deflects laser light emitted from the semiconductor laser 241, and a polygon mirror that is driven to rotate at a predetermined rotational speed described later. A polygon motor 237 serving as a scanning motor, and an optical system 242 that deflects laser light from the polygon mirror and guides it to a photosensitive drum described later. The laser exposure apparatus 240 having such a configuration is fixed and supported on a support frame described later of the apparatus main body 200.

  The semiconductor laser 241 is controlled to be turned on / off according to the image information of the document D read by the scanner unit 50, and this laser beam is directed to the photosensitive drum via the polygon mirror 236 and the optical system 242, and the photosensitive drum An electrostatic latent image is formed on the drum peripheral surface by scanning the peripheral surface.

  Further, the image forming unit 52 has a rotatable photosensitive drum 244 as an image carrier disposed almost at the center of the apparatus main body 200, and a laser exposure device 240 is provided on the peripheral surface of the photosensitive drum 244. The laser beam is exposed to form a desired electrostatic latent image.

  Around the photosensitive drum 244, a charging charger 245 for charging the peripheral surface of the drum to a predetermined charge, and toner as a developer is supplied to the electrostatic latent image formed on the peripheral surface of the photosensitive drum 244. A developing device 246 that develops at a desired image density and a transfer material fed from a paper cassette 252, 253, 254, 255, or 257, that is, a copy paper P, is separated from the photosensitive drum 244. A peeling charger 247, a transfer charger 248 for transferring the toner image formed on the photosensitive drum 244 to the paper P, a peeling claw 249 for peeling the copy paper from the peripheral surface of the photosensitive drum 244, and the circumference of the photosensitive drum 244. A cleaning device 250 that cleans the toner remaining on the surface and a static eliminator 251 that neutralizes the peripheral surface of the photosensitive drum 244 are sequentially arranged.

  In the lower part of the apparatus main body 200, paper feed cassettes 252, 253, and 254 that can be pulled out from the apparatus main body 200 are arranged in a stacked state, and copy papers of different sizes are loaded in each cassette. A large-capacity paper feed cassette 255 is provided on the side of these cassettes. The large-capacity paper feed cassette 255 stores about 3000 sheets of frequently used copy paper, for example, A4 size copy paper. ing. A paper feed cassette 257 that also serves as a manual feed tray 256 is detachably mounted above the large capacity paper feed cassette 255.

  In the apparatus main body 200, a conveyance path 258 is formed extending from each cassette through a transfer portion located between the photosensitive drum 244 and the transfer charger 248, and a fixing device 260 is provided at the end of the conveyance path. Yes. A discharge port 261 is formed in the side wall of the apparatus main body 200 facing the fixing device 260, and a finisher 300 is attached to the discharge port 261. The finisher 300 will be described in detail later.

  In the vicinity of the paper feed cassettes 252, 253, 254, 255, and 257, pickup rollers 263 for taking out sheets one by one from the cassettes are provided. The transport path 258 is provided with a plurality of paper feed roller pairs 264 that transport the copy paper P taken out by the pickup roller 263 through the transport path 258.

  A registration roller pair 265 is provided on the upstream side of the photosensitive drum 244 in the transport path 258. The registration roller pair 265 corrects the inclination of the taken copy paper P and aligns the leading edge of the toner image on the photosensitive drum 244 with the leading edge of the copying paper P so that the moving speed of the peripheral surface of the photosensitive drum is the same. The copy paper P is fed to the transfer unit at a speed. An aligning sensor 266 for detecting the arrival of the copy paper P is provided in front of the registration roller pair 265, that is, on the paper feed roller 264 side.

  The copy paper P taken out from each cassette by the pickup roller 263 is sent to the registration roller pair 265 by the paper feed roller pair 264. The copy paper P is fed to the transfer section after the leading edge is aligned by the registration roller pair 265.

  In the transfer portion, the developer image formed on the photosensitive drum 244, that is, the toner image is transferred onto the paper P by the transfer charger 248. The copy paper P to which the toner image has been transferred is peeled off from the peripheral surface of the photosensitive drum 244 by the action of the peeling charger 247 and the peeling claw 249, and is transferred to the fixing device 260 via the conveyance belt 267 constituting a part of the conveyance path 252. Be transported. Then, after the developer image is melted and fixed on the copy paper P by the fixing device 260, the copy paper P is discharged to the discharge tray 362 of the finisher 300 through the discharge port 261 by the paper feed roller pair 268 and the paper discharge roller pair 269. Is done.

  Below the conveyance path 258, an automatic duplexer (ADD) 270 that reverses the copy paper P that has passed through the fixing device 260 and sends it again to the registration roller pair 265 is provided. The automatic duplexer 270 includes a temporary stacking unit 271 that temporarily stacks the copy paper P, and a reverse path 272 that branches from the conveyance path 258 and reverses the copy paper P that has passed through the fixing device 260 and guides it to the temporary stacking unit 271. A pickup roller 273 that picks up the copy sheets P collected in the temporary stacking unit one by one, and a paper feed roller 275 that feeds the taken sheets to the registration roller pair 265 through the transport path 274. In addition, a distribution gate 276 that selectively distributes the copy paper P to the discharge port 261 or the reverse path 272 is provided at a branch portion between the transport path 258 and the reverse path 272.

  When performing double-sided copying, the copy paper P that has passed through the fixing device 260 is guided to the reversing path 272 by the sorting gate 276 and temporarily accumulated in the temporary accumulating unit 271 in an inverted state, and then the pickup roller 273 and The paper is fed to the registration roller pair 265 through the conveyance path 274 by the paper feed roller pair 275. Then, after the copy paper P is aligned by the registration roller pair 265, it is sent again to the transfer unit, and the toner image is transferred to the back surface of the copy paper P. Thereafter, the copy sheet P is discharged to the discharge tray 362 of the finisher 300 via the conveyance path 258, the fixing device 260, and the discharge roller 269.

  Further, by using the automatic duplexer 270, it is possible to discharge the paper with the printed side facing down. That is, in the manner of performing double-sided copying, first, the image is transferred and fixed on the paper surface, temporarily accumulated in the temporary collecting unit 271, and adjusted by the registration roller pair 265 through the conveyance path 274 by the pickup roller 273 and the paper feed roller pair 275. The sheet is discharged to the discharge tray 362 via the conveyance 258, the fixing device 260 and the discharge roller 269.

  FIG. 3 is a block diagram functionally illustrating an example of an internal configuration of the composite image forming apparatus.

  The apparatus includes a main CPU 30, a ROM 32 (for program and database), an NVRAM 34, and a DRAM (for work and data storage) 36. The main CPU 30 controls the entire apparatus. Here, the main CPU 30 controls each function according to an instruction from the operation panel 202, a signal input (FAX) from a communication line, and input signals from various external interfaces (external IF). Control.

  Further, this apparatus is provided with a hard disk drive (HDD) 37 as storage means for storing image data, and an optical disk drive (ODD) 38 as storage means, so that large-capacity image data can be stored. Memory can be realized.

  The SIF 40 is a scanner interface that receives image data from the scanner unit 50, and the IPU (image processing circuit) 42 is an image quality enhancement process, an enlargement / reduction process, a pixel thinning process, or a specified area whitening process by marker detection according to the recording apparatus. A page memory (PM) 44 serving as a storage means and an image processing unit for performing the image editing process is a multi-value page memory having a multi-value bit number per pixel, QNT / PM (QNT: quantization, PM: page) (Di-memory) 46 is a portion composed of a binarized page memory (page buffer) for storing multi-valued data for storage, a compression / decompression circuit, and various image processing ASICs. LANC54 is a connection interface with Ethernet (registered trademark) and N company network A network control circuit including a CPU for controlling the protocol.

  One end of the LANC 54 cable is connected to a device (not shown) constituting a network such as a router / repeater. The SCSI 56 as an acquisition means for acquiring image data for realizing the printer function is a SCSI bus control chip set for performing communication command control with an external device (not shown) such as a PC. For example, when a control command is received from the main CPU 30, it is interpreted and sent to the target device. Conversely, when a signal is received, the signal is passed to the main CPU 30 as it is. The main CPU 30 interprets the signal, returns a response as appropriate, and controls the entire apparatus.

  As shown in FIG. 4, a FAXC unit 58 as an acquisition means for acquiring image data transmitted by facsimile for realizing a facsimile function is a so-called MODEM 76 that forms a connection IF with a public line according to a facsimile procedure, and a transmission / reception buffer 74. , A file memory 68 as a storage means for storing FAX image data, a CODEC (CODER-DECODER) 66 for performing image encoding / decoding and resolution conversion, a CODEC 72, and their control and mutual communication with the main CPU 30. It consists of a FAX CPU 78 to perform.

  The PRNC 60 is a control circuit for performing protocol control and data transfer / compression / decompression control for receiving print data from a device such as an external PC. These devices are connected via an image bus 62, and control signals between the main CPU 30 and each device are exchanged at high speed via the system bus 64. This image bus 62 is a unique one provided when this controller operates as a copying machine. In order to guarantee the real-time operation of the copying machine, image data input from the scanner unit 50 is received by the SIF 40. Then, the IPU 42 performs image quality enhancement processing, enlargement / reduction processing, and various editing processing, and the PIF 48 outputs the output of the printer unit 52 in parallel. Of the boards connected to the image bus 62, processing boards unnecessary for the operation at that time are in a passing state. For example, the QNT / PM 46 is unnecessary because it is unnecessary in the case of a copying operation, and this binary page memory is necessary when editing a plurality of copy images using the memory.

  FIG. 4 is a diagram illustrating the configuration of the FAXC unit 58.

  In FIG. 4, the dotted line portion indicates the system bus 64 in FIG. 3, and the double line portion indicates the image bus 62. For example, in the composite type image forming apparatus having the configuration described in this embodiment, under certain operating conditions, FAX transmission data is input from the scanner unit 50 and then input / output from the image bus 62 to the FAXC unit 58. Accumulated in the buffer. The accumulated data is encoded / compressed by the CODEC 66 and accumulated in the file memory (FILEMEMORY) 68.

  After the line is selected by the NCU (NETWORK CONTROL UNIT) 70, the transmission data for FAX is converted by the CODEC 72 into an encoding method / resolution that matches the capability of the partner station, and transmitted from the MODEM 76 via the transmission / reception buffer 74. The At this time, a transmission header for FAX is also added by the CODEC 66.

  The FAX communication control command is sent from the main CPU 30 of the system to the FAXC unit 58 by DMA transfer. The FAX CPU 78 of the FAX C unit 58 executes the command contents and transmits the status or request to the main CPU 30 side by DMA transfer. In response to this command, the FAX CPU 78 sends a control signal (compliant with ITU-T / T.30) based on the standard protocol over the line via the MODEM 76. Further, the main CPU 30 sends out the next instruction according to the status or the content of the request.

  When the image data stored in the HDD 37 shown in FIG. 3 is transferred as a transmission image to the FAXC unit 58, it is DMA-transferred to each other via the transfer buffer of the FAXC unit 58.

  In the case of reception, the received data is temporarily stored in the transmission / reception buffer 74 of the FAXC unit 58, and after error checking, etc., is converted into a specified encoding method by the CODEC 66 and stored in the file memory 68 of the FAXC unit 58. The When the accumulated image data is stored in the HDD 37 shown in FIG. 3, it is DMA-transferred to the HDD 37 shown in FIG. 3 after performing coding conversion, resolution conversion processing, etc. in the CODEC 72.

  When printing the received image stored and stored in the file memory 68 of the FAXC unit 58, the stored received data is decompressed by the CODEC 66, expanded in the input / output buffer 80, and then printed out to the PIF 48 from the image bus 62 side. . When printing the image data stored and stored in the HDD 37 of FIG. 3, the image is developed on the QNT / PM 46 of FIG. 3, and printed out to the PIF 48 from the image bus 62 side.

  The image input / output buffer 80 of the FAXC unit 58 can rotate image data. For example, when an A4 image is received, a 90 degree rotation process is performed here, so that both A4 horizontal and A4 vertical cassette recording paper can be used, and at the same time, originals can be input in both portrait and landscape directions. It becomes.

  Furthermore, using the 180 degree rotation process, for example, all the directions of the image data input using the ADF 207 are corrected to the forward direction. Further, the automatic duplex device 270 alternately performs 180 degree rotation processing on the received document, and then performs printing processing on both sides of the recording paper.

  FIG. 5 is a diagram illustrating a configuration of the operation panel 202.

  As shown in FIG. 5, the operation panel 202 includes a touch panel display 82, a start key 90, a pause key 91, a clear key 92, a numeric key 93, a size key 94 for selecting a document size, a cassette key 95 for selecting a cassette, and a selected key. LEDs 84 and 85 for displaying a document size / cassette, a copy magnification setting key 96, an image mode selection key 97, and the like are provided. The numeric keypad 93 has the same arrangement as the numeric keypad arrangement of the button telephone apparatus so that it can be shared by copying or FAX (FAX number input). Incidentally, the above-described keys 90 to 97 are collectively referred to as hard keys.

  For example, when five copies are made, the menu on the touch panel display 82 is switched to copy, a desired process (such as double-sided copy) is selected, and then the “5” key of the numeric keypad 93 is pressed. Then, this number is displayed in a specific area on the touch panel display 82. After the user confirms this, if the document is set and the start key 90 is pressed, the copying operation is started.

  FIG. 6 is a block diagram showing a configuration of touch panel display 82 shown in FIG.

  The touch panel display 82 is configured by overlapping the touch panel 102 on the liquid crystal display 104. In the touch panel 102, a transparent resistor is uniformly applied to a transparent substrate, and transparent electrode groups are arranged in parallel at predetermined distance intervals in the X / Y direction. Under the control of the touch panel control unit 106, a voltage is sequentially applied to each transparent electrode in the X / Y direction in a certain direction. The position indicating operation on the touch panel 102 is performed using a dedicated conductive pen or a finger. The touch panel control unit 106 monitors the resistance value between the electrodes in the X / Y direction, and detects a position where the resistance value is locally reduced by an instruction from a conductive pen or a finger by calculating from the resistance value between the electrodes. I do.

  The liquid crystal display 104 is connected with a display control unit 108 for driving the display and a display RAM (VRAM) 110 for storing display data in units of display pixels.

  In the touch panel display 82 having the above configuration, the position data obtained by the touch panel control unit 106 is read by the main CPU 30 in the main control unit, and processing corresponding to the position data is executed by the main CPU 30. For example, when handwritten input is performed, the data on the VRAM 110 corresponding to the position designated on the touch panel 102 is reversed from the non-display state to the display state, and the keyboard display or various setting buttons displayed on the liquid crystal display 104 are displayed. The touch panel display 82 can be used for a wide range of applications such as input of operation parameters by selection from the menu.

  7 to 9 are diagrams showing the flow of a standard G3 facsimile communication protocol used in this composite type image forming apparatus. Here, all examples in the non-error correction mode are shown, but the communication protocol flow is basically the same in the error correction mode.

  FIG. 7 is a diagram illustrating a flow of a communication protocol when transmitting transmission data for only one page (no subsequent page). As shown in FIG. 7, the FAX communication protocol is divided into five phases A to E. A: call setting, B: initial recognition, C: data transmission, D: transmission data confirmation, E: Divided into cutting.

  FIG. 8 is a diagram illustrating a flow of a communication protocol when transmitting transmission data (with subsequent pages) of a plurality of pages without changing the transmission condition. In the case of FIG. 8, the called terminal side is informed of the multi-page in phase D (MPS), and then phase C and subsequent steps are repeated.

  FIG. 9 is a diagram illustrating a flow of a communication protocol when transmitting transmission data (with subsequent pages) by changing the transmission condition. In the case of FIG. 9, the change of the communication condition is notified to the called terminal side in phase D (EOM), and then the phase B and subsequent steps are repeated.

  In phase B (initial recognition) of each communication procedure, first, an NSF (Not Standered facsimile) signal is transmitted from the called terminal (receiving terminal). In this signal, ITU-T / T. 35 stipulates that a country code and a manufacturer code are presented. Normally, in communication between facsimile machines of the same manufacturer, each signal is identified by this signal, and ITU-T / T. Communication is carried out in accordance with the procedures unique to each company, which are different from the 30 regulations.

  Next, the network transmission operation in the composite image forming apparatus will be described.

  In this case, first, a network transmission mode is set on the operation panel 202. Next, transmission destination information (network address, user ID, etc.) is set. Then, transmission image data is set. The set transmission destination information is set in the transmission queue under the control of the main control unit. The transmission data is subjected to an editing process based on the transmission condition, and then encoded / compressed, and a line connection to the transmission destination is performed according to a protocol corresponding to the network. When all pages are transmitted, line disconnection processing is performed.

  During the above operation, the main control unit manages transmission destination information from the operation panel 202 and sets parameters such as an image size and a compression method in the SIF 40 and the QNT / PM 46. If there is a start instruction, the scanner unit 50 is driven to perform resolution conversion, binarization, and compression processing on the input image data, and then hold these in the QNT / PM 46 or the HDD 37. Do up to the page.

  Next, the facsimile transmission operation of the input document in the composite image forming apparatus will be described.

  First, the menu on the touch panel display 82 is switched to the FAX menu on the operation panel 202 described above, and then the facsimile transmission mode is set. Alternatively, the transmission mode is set from a terminal device such as a PC via a network or a serial interface such as 232C. When this mode setting is performed from the operation panel 202, the setting is performed by pressing a hard key corresponding to an instruction of a mode selection switch displayed on the touch panel display 82 and a desired condition.

  When mode setting is performed from a terminal device such as a PC, a facsimile transmission mode is selected from a menu on the screen. At this time, the destination information (telephone number, abbreviated dial number etc.), transmission size information, scaling information such as enlargement / reduction, desired resolution, presence / absence of rotation, and high security contents are included in the facsimile transmission mode setting screen. A transmission condition such as whether or not the document is a confidential document is set.

  The transmission data is input by the scanner unit 50, subjected to image processing such as enlargement / reduction and halftone processing specified by the operation panel 202 in the IPU 42, and then used by the input / output buffer 80 of the FAXC unit 58 of FIG. And developed as binary data. Subsequently, encoding / compression processing is performed using the CODEC 66 shown in FIG. 4, and if necessary, rotation processing / resolution conversion processing of the input image is performed and stored / saved in the file memory 68 of the FAXC unit 58. The

  When the HDD 37 is mounted, the data is expanded in the QNT / PM 46 of FIG. 3 and subjected to image processing designated by the user, and then the QNT / PM 46 is used to perform the encoding process and the HDD 37 stores the memory. The image processing specified by the user at this time is, for example, a so-called “Nin1 (N: integer)” process (reduction concatenation) in which a plurality of originals are reduced to one and transmitted as one original. Also referred to as processing).

  In the case of performing memory accumulation transmission, it is set in the transmission queue after the document input is completed. If the transmission time is specified, it is not transmitted until the time specified by the user, but if it is not specified and there is no state file waiting for transmission, the transmission procedure is immediately started.

  When starting the transmission process, the image data stored in the file memory 68 of the FAXC unit 58 uses the CODEC 72, and after performing the resolution conversion process and the size conversion process according to the reception performance on the receiving terminal side, Send to the other station. Also, using the HDD 37, the image file stored in the HDD 37 at the time of transmission execution is DMA-transferred to the FAXC unit, and the transmission procedure is started.

  When direct transmission is performed, the NCU 70 performs line connection control based on transmission destination information. When line connection is established, image data is input from the scanner unit 50, and the image processing unit converts the image data to a resolution that matches the capabilities of the partner station. At this time, the partner station ability is given priority over the resolution and image size desired by the user. Subsequently, the data is transferred to the input / output buffer 80 of the FAXC unit 58 shown in FIG. After transmission of all pages of transmission data is completed, line disconnection processing is performed.

  Next, the memory editing function of a copy image using the QNT / PM 46 in this composite type image forming apparatus will be described.

  The image input from the scanner unit 50 is subjected to resolution conversion and binarization processing according to the function selected by the user in the image processing unit, and then stored in the QNT / PM 46. The resolution conversion according to the function selected by the user corresponds to, for example, a 71% reduction when a 2 in 1 function for reducing two originals and storing them in one sheet is selected. In the case of 2-in-1 processing, an image that has been reduced by about 71% in the image processing unit is read into the QNT / PM 46. Further, after 90 degree rotation processing is performed, two sheets are printed as one sheet.

  FIG. 10 is a diagram schematically illustrating the overall configuration of the composite image forming apparatus.

  In FIG. 10, an input / output control unit 112 is an engine control that performs scanner drive control at the time of image input, ADF control, printer control at the time of printing, paper conveyance control, and the like, and changes the resolution and size of the image. From an image processing unit that performs image quality improvement processing, an input / output image processing unit that performs modification processing such as rotation processing of images that are input or output or image composition, and an image memory that decompresses / encodes and compresses input images Composed.

  Here, the image processing unit performs, for example, a size conversion process specified by the user at the time of copying or an image quality improving process such as an error diffusion process, and a conversion process to a resolution specified by the user at the time of FAX image input. Performs size conversion processing, high image quality processing, etc. according to the performance of the receiver. At this time, the image data input to the image memory is subjected to modification processing such as rotation processing and image composition in accordance with the user's setting contents.

  Also, during FAX printing, resolution expansion processing (interpolation processing) that matches the resolution of the printer, high image quality processing such as smoothing, and image rotation processing according to user settings are performed on the received fax data. Also, reduction processing or page division processing when a long document is received is performed. These scanners / printers are directly controlled by a mechanical control CPU, and the main CPU 30 in FIG. 3 performs control by sending a message to them.

  The copy control unit 114 controls the copy function by controlling the drive timing of the input / output control unit 112 and setting parameters for image processing. The timing control means, for example, ADF drive timing, scanner drive timing, modification processing of an image developed in a memory, designation of print start timing, designation of input start timing of the next document, and the like.

  The operation panel control unit 116 includes the operation panel 10 of the composite image forming apparatus described with reference to FIGS. 5 and 6, a serial port, a SCSI controller, and the like. For example, when FAX transmission is instructed from the operation panel 10, the information is transmitted to the overall control unit 118. Also, when the FAX communication is started using the communication line, the information is notified via the overall control unit 118, and the LED on the operation panel 10 is turned on and the message is displayed on the LCD.

  When control information such as data and FAX transmission conditions is received from an external PC via a serial port or SCSI controller, the conditions are the same as when FAX transmission is selected by the user setting from the control panel. This is transmitted to the overall control unit 118. The overall control unit 118 confirms the availability of the scanner unit 50 and the printer unit 52 and then transmits the setting contents to the FAX communication control unit 120.

  The overall control unit 118 also constantly monitors the remaining memory capacity and operation state of the entire apparatus, and performs exclusive control of resources shared by a plurality of functions such as the scanner unit 50 and the printer unit 52, priority operation, and the like. Also, time control such as timer monitoring is performed, and depending on the state, job switching control such as menu switching and FAX time designation transmission function is appropriately performed on the operation panel control unit 116.

  The FAX communication control unit 120 includes the FAXC unit 58 and FAX control software described in FIG. For example, the FAX control software sends a command to the FAX CPU 78 of the FAXC unit 58 to realize a FAX communication function, and also performs processing such as list / report generation and recovery processing when a power failure occurs.

  The print control unit 122 is configured from data control software connected to the PRNC 60 and PC in FIG. 3 for printing image data.

  FIG. 11 is a schematic diagram of a hardware configuration of the PRNC 60 shown in FIG. The PRNC 60 includes an interface to the system bus 64 and a command control CPU 60a that controls their communication protocol, a buffer memory 60b, a data control ASIC 60c that performs high-speed data control, and a parallel port that connects itself to an external device such as a PC ( Centronics) 60d.

  For example, a document created by application software on a PC is expanded into image data on the PC, encoded / compressed, and stored in a memory on the PC. This encoded data is transferred at high speed according to a predetermined protocol with the PRNC 60. The PRNC 60 transfers the received image data to the QNT / PM 46 or the HDD 37 by direct memory access (DMA).

  Subsequently, the description is made with reference to FIG. FIG. 12 is a diagram illustrating a schematic configuration of the input / output control unit 112.

  The input / output control unit 112 is divided into two control units: a document data input unit 112a and an image data printing unit 112b.

  The manuscript data input unit 112a performs input processing control when inputting image data with the scanner 50 by a copying function and a facsimile function. That is, the document data input unit 112a drives the ADF 207 as necessary to set the document on the scanner 50 (document placement table 212) as shown in the flowchart of FIG. Further, the scanner 50 is driven to scan a document set on the scanner 50. Further, the scanned image data of the original is read by using the scanner 50 and the IPU 42 of the present apparatus, and subjected to appropriate image processing, and then the input / output buffer 80 in the memory of the QNT / PM 46 unit or in the FAXC unit 58. The image is developed (when the HDD 37 is not mounted by FAX input). Further, after performing an image editing process, which will be described later, the encoding / decoding circuit 46 is used to perform data compression by encoding, and the image is accumulated and stored in the QNT / PM 46 or the HDD 37.

  The image data printing unit 112 reads the data stored and stored in the QNT / PM 46 or the HDD 37, decodes and decompresses it, and writes it in the memory of the QNT / PM 46, as shown in the flowcharts of FIGS. Then, one of the paper feed cassettes 252, 253, 254 and the large capacity paper feed cassette 255 is selected to feed an appropriate size copy paper, and the image data is transferred from the memory of the QNT / PM 46 to the printer 52, Print an image on copy paper. Thereafter, the copy sheet is discharged to the discharge tray 362 or the finisher according to the setting. At this time, when the staple is instructed, the staple is applied to the discharged paper.

  These two control units, the document data input unit 112a and the document image data printing unit 112b, give instructions such as operation start, operation end, operation stop, and operation stop from the upper overall control unit 118 to the OS. The message is received using supported message communication, and a message is transmitted to the overall control unit 118 when processing corresponding to each instruction is completed and as necessary. Also, a job parameter table for storing parameters relating to job control as shown in FIG. 16 is shared among the overall control unit 118, the input / output control unit 112, the copy control unit 114, the print control unit 122, and the FAX communication control unit 120. I write and reference from time to time.

  The document data input unit 112a and the document image data printing unit 112b write and refer to the parameter storage table shared between the two control units shown in FIG. 17 as needed without using message communication.

  Here, the flowchart of FIG. 13 will be described. FIG. 13 is a flowchart showing document input processing executed by the document data input unit 112a.

  The document input process is started when the overall control unit 118 receives a message regarding the document input process. When the overall control unit 118 receives a message for instructing termination or cancellation (ST52, YES), termination processing is executed (ST54). Further, when the interruption instruction message is received in overall control section 118 (ST52, YES), interruption processing is executed (ST56). When overall control section 118 receives a message for instructing start of document input processing (YES in ST52), the job message received together with this message is analyzed (ST58), and the document input processing is started thereafter. It will be.

  The document input process is divided into a case where the ADF 207 is used and a case where the ADF 207 is not used. Whether to use the ADF 207 is determined based on whether or not a document to be read is set on the ADF 207. When a document to be read is set on the ADF 207 (ST60), the ADF 207 is driven (ST62).

  When the reduction and concatenation function for reducing the images of a plurality of originals and outputting them on a single sheet is instructed (ST64, YES), the reading position is calculated, the scanner is driven according to the calculation result, and the page memory is written. After the position calculation and the page memory image development corresponding to the calculation result are performed (ST66), reading of images of a plurality of documents output on one sheet is executed. That is, until the reading of the images of a plurality of documents output on one sheet is completed, (ST70, NO) → (ST80, NO) → (ST82, YES) → (ST60, YES) → (ST62) → ( The process is repeated in the order of ST64, YES) → (ST66). When reading of images of a plurality of originals output on a single sheet is completed, if it is instructed to combine data stored in advance in the HDD 37 as a form (ST70, YES), (ST72, YES) → ( Image data corresponding to the images read in the order of ST74) is synthesized. When the composition is not instructed (ST72, NO), the composition processing is not performed. The image data obtained in this way is encoded / compressed (ST76), and the file information is updated (ST78). If there is no next original in the ADF 207, the process is interrupted (ST84).

  If the reduced concatenation function is not instructed (ST64), after reading position calculation and scanner driving according to the calculation result, and page memory writing position calculation and page memory image expansion according to the calculation result are performed. (ST68) If the form composition is valid, composition processing is performed, image data is encoded / compressed (ST76), and file information is updated (ST78).

  Next, the flowcharts of FIGS. 14 and 15 will be described. 14 and 15 are flowcharts showing the printing process executed by the image data printing unit 112b.

  The printing process is started when the overall control unit 118 receives a message regarding the printing process. If the overall control unit 118 receives an interrupt, stop, or end instruction message (ST102, YES), job interrupt, job stop, or job end processing is executed (ST104). When the overall control unit 118 receives a print processing start instruction message (YES in ST102), the job message received together with this message is analyzed (ST106). In accordance with the analysis result, the paper source switching possibility determination (ST108) and the development page determination (ST110) are performed. When the developed page is determined, the paper source is checked (ST112).

  In the case of only paper discharge (ST114, YES), paper discharge from ADD 270 is instructed (ST116), and the paper in ADD 270 is discharged (ST118). When it is not only the paper discharge (ST114, NO), the reduction connection process is performed as necessary (ST120 to 130). When the reduction concatenation process is not required, paper feeding is started (ST132), the page memory writing position is calculated (ST134), the data on the file is decrypted / expanded, and developed in the page memory (STEP). ST136). When the paper feeding is completed (ST138, YES) and the development of the image data is completed (ST140, YES), the image transfer range and the rotation angle are calculated (ST142, ST144).

  Thereafter, stapling and shifting are set as necessary (ST146). Further, processing corresponding to the case where the binding margin is set or not set is executed (ST148 to 154). When the paper discharge for the number of copies is completed (ST156, YES), the page memory is released (ST158).

  Next, an outline of memory editing mainly related to the input / output control unit 112 and an implementation method thereof will be described. First, as a premise, the transfer direction of image data by a copying function, a facsimile function, and a printer function will be described with reference to FIGS.

  FIG. 18 is a view showing a portrait document (vertically long document) and a landscape document (landscape document). In FIG. 19, the transfer direction of the image data of the document shown in FIG. 18 will be described.

  FIG. 19 is a diagram for explaining the transfer direction of image data and the development state of image data for each of the copying function, the facsimile function, and the printer function. Here, in order to make the explanation easy to understand, it is assumed that the original for image input in the copying function and the facsimile function is a single-sided original having an image formed on one side.

  First, the case of the copy function will be described (ST1-1 to ST1-4). Here, the description will be made assuming that the original to be copied is a portrait, but the same applies to a landscape.

  In the case of the copying function, when inputting a document image, there are a case where a document is set on the document table 212 using the ADF 207 and a case where a document is directly set on the document table 212. When the ADF 207 is used, it is set so that the printing surface of the document is on the upper side (face up) and the left side of the document is in the transport direction of the ADF 207. That is, when the operator places the document on the ADF 207, the printing side of the document is visible, the right side of the document is in the right hand direction on the operator side, and the left side of the document is in the left hand direction on the operator side. The original is set so that the lower side of the original comes to the front side of the user (ST1-1).

  The document set in this way is conveyed to the document placing table 212 by the ADF 207. At this time, the document is reversed and set on the document table 212 so that the printing surface of the document is in contact with the document table 212. When the document is set directly on the document table 212 without using the ADF 207, the document is set so as to be in such a state (ST1-2).

  When a document is set on the document table 212, the set document is read. At this time, reading of the original is started from the right side of the printing surface, and the vertical direction of the original is the main scanning direction, and the horizontal direction is the sub-scanning direction (ST1-3).

  The image data of the original read in this way is transferred to the QNT / PM 46 line by line and developed in the page memory 44. At this time, the image data is expanded on the page memory 44 as shown in ST1-4. That is, the image data in the left direction is developed in order from the image data in the right direction of the document image.

  Since the QNT / PM 46 incorporates a mechanism for managing the memory with a two-dimensional address, the input / output control unit 112 assumes that the transferred image is written from the x-axis direction as shown in FIG. Processing proceeds. Further, when an image is transferred from the QNT / PM 46 to the printer 52 or the HDD 37, the image is read from the origin in the x-axis direction in the QNT / PM 46 coordinate system.

  Second, the case of the facsimile function will be described (ST2-1 to ST2-4). Here, the description will be made assuming that the document to be transmitted and received is a portrait, but the same applies to a landscape.

  In the case of document transmission by the facsimile function, when inputting a document image, there are a case where a document is set on the document placement table 212 using the ADF 207 and a case where a document is directly set on the document placement table 212. When the ADF 207 is used, it is set so that the printing surface of the original is on the upper side (face up) and the lower side of the original is in the transport direction of the ADF 207. In other words, when the operator places the document on the ADF 207, the printing surface of the document is visible, the upper side of the document is in the right hand direction on the operator side, and the lower side of the document is in the left hand direction on the operator side. The document is set so that the right side of the document is in front of the user (ST2-1).

  The document set in this way is conveyed to the document placing table 212 by the ADF 207. At this time, the document is reversed and set on the document table 212 so that the printing surface of the document is in contact with the document table 212. When the document is set directly on the document table 212 without using the ADF 207, the document is set so as to be in such a state (ST2-2).

  When a document is set on the document table 212, the set document is read. At this time, reading of the original is started from the upper side of the printing surface, and the horizontal direction of the original is the main scanning direction, and the vertical direction is the sub-scanning direction (ST3-3).

  The image data of the original read in this way is transferred to the CODEC 66 line by line and developed in the file memory 68. At this time, the image data is developed on the file memory 68 as shown in ST2-4. That is, the image data in the lower direction is developed in order from the image data in the upper direction of the document image.

  In the case of document reception by the facsimile function, documents are received in the order of ST2-3 and ST2-4 described above.

  Third, the case of the printer function will be described (ST3-2 to ST3-4, ST4-2 to ST4-4). Here, the case where the print target is a portrait and the case of a landscape will be described separately.

  When the print target is a portrait (ST3-2), reception starts from the image data corresponding to the upper side of the original image, and image data corresponding to the lower side of the original image is gradually received. At this time, the horizontal direction of the original is the main scanning direction, and the vertical direction is the sub-scanning direction (ST3-3).

  The image data received in this way is transferred line by line to the QNT / PM 46 and developed in the page memory 44. At this time, the image data is expanded on the page memory 44 as shown in ST3-4. That is, the image data in the lower direction is developed in order from the image data in the upper direction of the document image.

  When the print target is a landscape (ST4-2), reception starts from the image data corresponding to the right side of the original image, and image data corresponding to the left side of the original image is gradually received. At this time, the vertical direction of the document is the main scanning direction, and the horizontal direction is the sub-scanning direction (ST4-3).

  The image data received in this way is transferred line by line to the QNT / PM 46 and developed in the page memory 44. At this time, the image data is expanded on the page memory 44 as shown in ST4-4. That is, the image data in the left direction is developed in order from the image data in the right direction of the document image.

  As described above, in the case of the printer function, the image is transferred on the page memory 44 so that the short side direction = the main scanning direction.

  Next explained is the first embodiment of the invention. The first embodiment relates to the printing order in the copying function, facsimile function, and printer function.

  There are two types of printing orders: ascending order for printing from the first page to the last page in order, and descending order for printing from the last page to the first page in order. In order to make the context of the original and the context of the printing result coincide, the discharge method of the printed paper is different between when the printing order is ascending and when the printing order is descending. Note that the discharged sheets are discharged so as to be stacked in order from the bottom on the discharge tray 362.

  When single-sided printing is executed in ascending order, first, the first page is printed on one side of the paper. The printing surface of the sheet on which the first page is printed is discharged in the direction opposite to the stacking direction, that is, toward the sheet discharge tray 362 (face down). Next, the second page is printed on one side of the paper. The printing surface of the sheet on which the second page is printed is discharged in the direction opposite to the stacking direction, that is, toward the sheet discharge tray 362 (face down). At this time, the paper on which the second page is printed is stacked and discharged on the paper on which the first page is printed. Next, the third page is printed on one side of the paper. The printing surface of the sheet on which the third page is printed is discharged in the direction opposite to the stacking direction, that is, toward the sheet discharge tray 362 (face down). At this time, the paper on which the third page is printed is stacked and discharged on the paper on which the second page is printed. Thus, in the case of single-sided printing in ascending order, the printed paper is discharged face down. This is shown in FIG. When the printed paper is discharged face-down, the printing surface is reversed by the ADD 270 serving as a discharging unit due to the mechanism of the apparatus (FIG. 2), and then discharged.

  In the case of duplex printing in ascending order, first, the surface on which the first page of the paper on which the first page and the second page are printed is discharged toward the discharge tray 362. Next, the surface on which the third page of the paper on which the third and fourth pages are printed is discharged toward the discharge tray 362. Also in this case, the print surface is reversed by the ADD 270 as the discharge means, and then discharged.

  When single-sided printing is executed in descending order, first, the last page (N) is printed on one side of the paper. The printing surface of the paper on which the last page is printed is discharged in the direction in which it is stacked, that is, in the direction opposite to the direction of the discharge tray 362 (face-up). Next, the (N-1) th page is printed on one side of the paper. The printing surface of the sheet on which the (N-1) th page is printed is discharged toward the stacking direction, that is, the direction opposite to the discharge tray 362 direction (face-up). At this time, the paper on which the (N-1) th page is printed is stacked on the paper on which the last page is printed and then discharged. Next, the (N-2) th page is printed on one side of the paper. The printing surface of the sheet on which the (N-3) th page is printed is discharged toward the stacking direction, that is, in the direction opposite to the discharge tray 362 direction (face-up). At this time, the paper on which the (N-2) th page is printed is stacked and discharged on the paper on which the (N-1) th page is printed. Thus, in the case of single-sided printing in descending order, the printed paper is discharged face up. This is shown in FIG.

  In the case of duplex printing in descending order, first, the surface on which the last page of the sheet on which the last page (N) and the (N-1) th page have been printed is discharged toward the discharge tray 362. Is done. Next, the surface on which the (N-2) th page of the paper on which the (N-2) th page and the (N-3) th page are printed is discharged toward the discharge tray 362. The

  The image data to be printed that is printed in the printing order as described above is acquired as follows for each function. When the copying function is executed, the image data to be printed is acquired (read) by the scanner 50 as acquisition means. When the facsimile function is executed, the image data to be transmitted is also acquired (read) by the scanner 50 as the acquisition unit, and the image data to be received (print target) is acquired (received) via the MODEM 76 as the acquisition unit. ) When the printer function is executed, image data to be printed is acquired (received) by the LANC 54 as an acquisition unit.

  The image data to be printed read when the copying function is executed is encoded / compressed by the QNT / PM 46 and stored in the page memory 44 or the HDD 37 as a storage unit. The image data to be transmitted read at the time of executing the facsimile function is encoded / compressed by the CODEC 66 and stored in a file memory 68 as a storage means. The image data file to be printed received when the facsimile function is executed is also stored in a file memory 68 as a storage means. The image data to be printed received when executing the printer function is encoded / compressed by the QNT / PM 46 and stored in the page memory 44 or the HDD 37 as a storage unit. As described above, the image data stored in the page memory 44, the HDD 37, or the file memory 68 is handled as one file by collecting a portion corresponding to a series of documents. Note that storage means for storing image data such as the page memory 44, the HDD 37, and the file memory 68 are collectively referred to as a storage unit.

  In the job parameter table shown in FIG. 16, information relating to an image data file composed of image data acquired by the acquisition means is recorded. For example, in the information related to the image data file, an attribute for one page is additionally recorded every time image data for one page of the document is accumulated in the storage unit. Further, in the image data file, page numbers such as page 1, page 2,..., Page n are assigned to the image data in the input order of the image data. Accordingly, the overall control unit 118 determines whether the image data file is read sequentially from the first page or sequentially from the last page depending on whether the image data is input in ascending order or descending order. That is, the image forming process is executed by the printer 52 in accordance with the reading order of the image data file determined by the overall control unit 118. Incidentally, a mode for executing image forming processing in order from the first page is referred to as a first image forming processing mode, and a mode for executing image forming processing in order from the last page is referred to as a second image forming processing mode. Are executed by the overall control unit 118 and the printer 52.

  Currently, many copying machines employ a method of inputting original images to be copied in descending order and outputting them in descending order. In this case, the output image is discharged face up so that the page order of the original image and the page order of the output image match. Many printers employ a method of receiving image data to be printed in ascending order and outputting the data in ascending order. This is because the transmission order from a PC or the like that is the transmission destination of image data is generally in ascending order. In this case, the output image is discharged face down so that the arrangement of pages does not change. Of course, if the transmission order of the image data from the PC or the like is in descending order, a method of outputting in descending order will be adopted. In this case, the output image is displayed in such a manner that the page order does not change. It will be discharged by up. Furthermore, in principle, facsimile is premised on transmitting image data in ascending order. That is, image data received by the facsimile is received in ascending order and output in ascending order. In this case, the output image is discharged face down so that the arrangement of pages does not change.

  According to the present invention, in an image forming apparatus having a plurality of functions such as a copying function, a facsimile function, and a printer function, output processing corresponding to the characteristics of each function is made possible. As shown in FIG. 2, the image forming apparatus of the present invention is suitable for the face-up output mechanically (the face-up output can shorten the time required for printing compared to the face-down output). To output face up, it is necessary to print in descending order. However, in order to print the image data input in ascending order in descending order, the image data file corresponding to all pages of the document to be printed is temporarily stored and printed sequentially from the last accumulated page (last page). Need to start. However, the page memory 44 or the HDD 37 that stores the image data file has a limited storage capacity, and the entire image data file may not be stored depending on the size of the image data file.

  Therefore, in the present invention, the printing process is controlled by the method shown in the flowchart of FIG. The print processing is started when the overall control unit 118 receives a print job output from the copy control unit 114, a print job output from the FAX communication control unit 120, or a print job output from the print control unit 122. (ST20). At this time, the overall control unit 118 determines the type of the print job (ST22). That is, it is determined whether the print job is a copy function, a facsimile function, or a printer function.

  When the print job is based on the copy function (ST24), the output order is determined to be the input order, that is, descending order (ST26), and the paper is discharged face-up onto the paper discharge tray 362 (ST28). That is, when the print job is based on the copy function, the first image forming mode is executed, and the printed paper is discharged onto the paper discharge tray 362 face up. However, in the printer function, when the data transmission order from the PC is descending, the sheets are discharged face up in the first image forming mode. When the paper is discharged face up onto the paper discharge tray 362, the paper after the image forming process is discharged directly onto the paper discharge tray 362 without passing through the ADD 270.

  When the print job is a facsimile function or a printer function (ST30), occurrence of memory full in the storage unit is monitored in the process of storing image data to be printed in the storage unit (ST32). The occurrence of memory full is determined according to the remaining storage capacity of the storage unit. That is, it is determined that the memory is full when the remaining capacity of the storage capacity of the storage unit becomes a predetermined value or less. When the memory full occurs (ST32, YES), the output order is determined as the input order, that is, the ascending order (ST38), and the paper is discharged face down onto the paper discharge tray 362 (ST40). However, in the printer function, when the data transmission order from the PC is descending, the output order is descending, and the paper is discharged face up. That is, when the print job is a facsimile function or a printer function and the memory is full, the second image forming mode is executed, and the printed paper is discharged face down onto the paper discharge tray 362. Is done. When the sheet is discharged face down to the discharge tray 362, the sheet after the image forming process is discharged onto the discharge tray 362 after the image forming process surface is reversed via the ADD 270.

  When all the series of image data to be printed is received (ST34, YES) without the occurrence of memory full (ST32, NO), the presence / absence of face-up designation is confirmed (ST36). This face-up designation is designated from the operation panel 202 by the user in advance. When face-up is designated (ST36, YES), the image data stored in the storage unit is read in descending order, the output order is determined to be descending (ST42), and the sheet is discharged face-up to the paper discharge tray 362. Paper is printed (ST44). That is, when face-up is designated without the occurrence of memory full, the first image forming mode is executed, and the printed paper is discharged onto the paper discharge tray 362 with face-up.

  When face-up is not designated (ST36, NO), the image data stored in the storage unit is read in ascending order, the output order is determined as input order, that is, ascending order (ST38), and the paper is discharged face-down. The paper is discharged onto the tray 362 (ST40). That is, when the memory full state does not occur and the face-up is not designated, the second image forming mode is executed, and the printed paper is discharged onto the paper discharge tray 362 face-down.

  By controlling the print output in this way, the following effects can be obtained. When the copying function is executed, printing is output in descending order with face-up, so that a printing result similar to that of a conventional copying machine can be obtained. As a result, the user can use the copy function without a sense of incongruity. When executing the facsimile function or the printer function, the descending order output by face-up and the ascending order output by face-down are selected according to the remaining amount of memory or the presence / absence of face-up designation. As a result, it is possible to avoid errors associated with the occurrence of memory full. Furthermore, it is possible to obtain a user desired output.

  Next explained is the second embodiment of the invention. The second embodiment relates to output image centering processing and cornering processing in the copying function, facsimile function, and printer function, respectively.

  First, the centering process and the cornering process will be described with reference to FIG. If the output image and the output destination paper size are different (the paper is larger than the output image), centering is performed so that the center of the paper matches the center of the image. This is called processing. Also, the process of printing an image in the direction of the apex of the paper is referred to as a cornering process. As shown in FIG. 23, the cornering process includes an upper left cornering process that forms an image by bringing the image to the upper left vertex of the paper, an upper right cornering process that forms an image by bringing the image to the upper right vertex of the paper, and an image at the lower left vertex of the paper. There is a lower left cornering process in which the image is formed by moving the image to the lower right corner of the sheet. These centering processing and cornering processing are executed based on user instructions.

  The centering process and the cornering process are realized as follows. First, to which position on the page memory of the size corresponding to the paper is developed based on the image size data and paper size data included in the image data by the page memory access ASIC attached to the QNT / PM 46 Is calculated. Then, according to this calculation result, the image is developed at a predetermined position in the page memory. Note that the calculation of which position on the page memory the image is to be developed is performed in the “calculation of page buffer write position” portion in the flowcharts shown in FIGS. Further, the “page buffer write calculation” is described in detail with reference to flowcharts shown in FIGS. As shown in the flowcharts shown in FIGS. 24 and 25, in the image forming apparatus of the present invention, the direction of cornering is set with respect to the direction of the image with sufficient attention to the direction of image data that differs depending on the job type shown in FIG. A cornering process is performed so as to be correct. This will be described in detail later.

  Further, when the binding margin is valid, a process of temporarily canceling a part of the centering / corner designation and adding an image to the binding margin side is added. This is because the binding margin is realized by shifting the image when the data in the page memory is transferred to the printer, so that an increase in the amount of image loss due to centering / cornering is avoided. The centering / cornering process when the binding margin is valid is executed based on the cornering position conversion table based on the binding margin shown in FIG. Note that the cornering conversion table based on the binding margin is stored in the NVRAM 34.

  Furthermore, when the centering / cornering designation is designated by the initial setting of the user, the centering / cornering may be performed as designated when the job type is copying or printer. However, in the FAX in the apparatus using roll paper, since the effective image is transmitted by the data of the standard paper width × required length, if centering / cornering is performed to the designated transmission paper size as specified, it is more than usual. However, the communication time may be long, which is inconvenient for FAX transmission. Therefore, when fax transmission is performed, document data input is performed so that the centering / corner setting is invalid only in the sub-scanning direction and is closer to the origin in the sub-scanning direction, and the image is arranged as set in the main scanning direction. Control in the page memory write position calculation by the unit 112a is performed as shown in FIG. In this apparatus, the binding allowance is prohibited when the image data is transmitted in the facsimile function.

  The present invention enables desired cornering processing and binding margin processing in an image forming apparatus having a plurality of functions such as a copying function, a facsimile function, and a printer function. That is, as described with reference to FIG. 19, since the development state of the image data on the memory differs depending on each function, the difference in the development state is absorbed and the cornering process and the binding margin process are executed.

  The cornering process is executed based on a cornering instruction received from the operation panel 202, that is, an instruction for upper right cornering, lower left cornering, upper right cornering, or lower left cornering. However, since the cornering process is actually performed on the image on the page memory, it is necessary to convert the designated cornering processing position to a position on the page memory. This conversion is executed according to the cornering processing position conversion table shown in FIG. The cornering processing position conversion table is stored in the NVRAM 34.

  Here, the conversion of the cornering processing position will be described with reference to FIG. When executing the copying function, the cornering processing position specified by the user is the same as the cornering processing position after conversion by the cornering processing position conversion table. That is, when the user-specified cornering processing position is upper right cornering, lower right cornering, upper left cornering, or lower left cornering, the converted cornering processing positions are upper right cornering, lower right cornering, upper left cornering, or lower left cornering, respectively. .

  When executing the facsimile function, if the corner processing position specified by the user is upper right cornering, lower right cornering, upper left cornering, or lower left cornering, the converted cornering processing positions are lower right cornering, lower left cornering, upper right cornering, or upper left corner, respectively. It becomes cornering.

  When the printer target is landscape when executing the printer function, if the cornering processing position specified by the user is upper right cornering, lower right cornering, upper left cornering, or lower left cornering, the converted cornering processing positions are the upper right cornering and lower right corner, respectively. Cornering, upper left cornering, or lower left cornering.

  When the printer function is a portrait when the printer function is executed, if the corner processing position specified by the user is upper right cornering, lower right cornering, upper left cornering, or lower left cornering, the converted cornering processing positions are respectively lower right cornering, Lower left cornering, upper right cornering, or upper left cornering.

  In this way, the cornering processing is executed at the user-specified cornering processing position by absorbing the difference in the development state on the page memory in each function and converting the cornering processing position specified by the user into the position on the page memory. be able to.

  On the other hand, the binding margin process is executed based on a binding margin instruction received from the operation panel 202, that is, a longitudinal left hand binding, a longitudinal right hand binding, a short left hand binding, or a short right hand binding instruction. However, since the binding margin processing is actually performed on the image on the page memory, it is necessary to convert the designated binding margin processing position into a position on the page memory. This conversion is executed according to the binding margin processing position conversion table shown in FIGS. The binding margin processing position conversion table is stored in the NVRAM 34.

  Here, the binding process conversion will be described with reference to FIGS. 29 and 30 and FIGS. 31 to 34. First, the premise of the binding margin process is as shown in FIG. That is, when the output result is a vertically long image (main scanning at the time of memory development = longitudinal direction), by specifying the left binding in the longitudinal direction, the right binding in the longitudinal direction, the left binding in the short direction, or the right binding in the short direction, Assume that the position of the added binding margin is the right side of the image, the left side of the image, the lower side of the image, or the upper side of the image. If the output result is a horizontally long image (main scan at memory expansion = short direction), add it by specifying the left binding in the long direction, the right binding in the long direction, the left binding in the short direction, or the right binding in the short direction. Assume that the binding margin position is the lower side of the image, the upper side of the image, the right side of the image, or the lower side of the image.

  If there is such a premise, at the time of executing the copying function, the designated binding margin is added to the image on the memory as shown in FIG. That is, in the expanded state a1 in the memory, the position of the binding margin to be added by the longitudinal direction left binding designation, the longitudinal direction right binding designation, the short direction left binding designation, or the short direction right binding designation, respectively. It is the rear end in the main scanning direction, the front end in the main scanning direction, the rear end in the sub scanning direction, or the front end in the sub scanning direction (see the memory copy column in FIG. 29). In the expanded state a2 on the memory, the position of the binding margin to be added is sub-scanned by the longitudinal left binding specification, the longitudinal right binding specification, the short direction left binding specification, or the short direction right binding specification, respectively. It becomes the rear end in the direction, the front end in the sub-scanning direction, the rear end in the main scanning direction, or the front end in the main scanning direction (see the memory copy column in FIG. 30).

  When the facsimile function is executed, the designated binding margin is added to the image on the memory as shown in FIG. That is, in the expanded state b1 on the memory, the positions of the binding margins to be added by the longitudinal direction left binding designation, the longitudinal direction right binding designation, the short direction left binding designation, or the short direction right binding designation, respectively. It becomes the rear end in the main scanning direction, the front end in the main scanning direction, the front end in the sub scanning direction, or the rear end in the sub scanning direction (see the FAX column in FIG. 29). In the development state b2 on the memory, the position of the binding margin to be added is sub-scanned by the longitudinal left binding designation, the longitudinal right binding designation, the short direction left binding designation, or the short direction right binding designation, respectively. The leading end in the direction, the trailing end in the sub-scanning direction, the trailing end in the main scanning direction, or the leading end in the main scanning direction (see the FAX column in FIG. 30).

  When the printer function is executed, the designated binding margin is added to the image on the memory as shown in FIG. That is, in the case of the development state c1 (landscape) in the memory, the position of the binding margin to be added by specifying the left binding in the longitudinal direction, the right binding in the longitudinal direction, the left binding in the short direction, or the right binding in the short direction. Are the rear end in the sub-scanning direction, the front end in the sub-scanning direction, the rear end in the main scanning direction, or the front end in the main scanning direction (see the column of the printer landscape in FIG. 30). In the expanded state c2 on the memory, the position of the binding margin to be added is sub-scanned by the longitudinal left binding designation, the longitudinal right binding designation, the short direction left binding designation, or the short direction right binding designation, respectively. The leading end in the direction, the trailing end in the sub-scanning direction, the trailing end in the main scanning direction, or the leading end in the main scanning direction (see the column of the printer portrait in FIG. 30).

  In this manner, the binding margin process is performed at the user-specified binding margin processing position by absorbing the difference in the development state on the page memory in each function and converting the user-specified binding margin processing position into the position on the page memory. Can be executed.

  Here, the flowcharts of FIGS. 24 and 25 will be described. First, the page memory size necessary for developing an image is obtained by referring to a previously prepared table based on the resolution and the paper size (ST160). Here, the number of main scanning pixels (size in the main scanning direction) is X1, and the number of sub scanning lines (size in the sub scanning direction) is Y1. When the binding margin process is designated, the designated binding margin position is converted into a position on the page memory as described above (ST162). When cornering processing is designated, the designated cornering position is converted into a position on the page memory as described above (ST164).

  There are the following two types of centering / cornering processing and binding margin processing. One is to add white data and transfer margin when transferring data from the page memory to the printer (ST174). The other is to prepare a binding allowance in advance in the page memory and develop image data in other areas (ST168 to ST172). When the reduced connection is invalid (ST166, NO), the former is adopted, and when the reduced connection is valid (ST166, YES), the latter is adopted. Therefore, when the concatenation reduction is effective (ST166, YES), the portion that cannot be written is removed from the page memory. That is, an effective image writable range is calculated (ST170, ST172). This calculation is performed separately when the binding margin is in the main scanning direction and in the sub-scanning direction (ST168, YES / NO).

  Subsequently, according to the number of connections in the main scanning direction and the sub-scanning direction (ST176), an effective image writable range per image is calculated (ST178). Further, in accordance with the binding margin designation (ST180), a corrected origin calculation process for moving the origin is performed for the convenience of the process (ST182 to 186). Here, the number of effective image main scanning pixels and the number of effective image sub-scanning lines are set (ST188). Further, centering processing and cornering processing are performed in accordance with the centering / cornering designation (ST192) (ST194 to ST212). That is, the image shift vector at the centering time and the image shift vector at the cornering time are calculated. Thereafter, an image development position vector is determined (ST214), and image development processing is executed (ST216 to 218).

  Next, the flowchart of FIG. 26 will be described. When the job type is copying (ST222), there is no need to control the pasting position at the time of input, and image data may be developed from the page memory origin (ST224). When the job type is FAX (ST222), the routine proceeds to a routine for determining the image data development position (ST226 to 250).

  Here, the number of main scanning pixels (size in the main scanning direction) is X1, and the number of sub scanning lines (size in the sub scanning direction) is Y1 (ST226). When cornering is valid, cornering direction conversion processing is executed (ST228). Subsequently, according to the number of connections in the main scanning direction and the sub-scanning direction (ST230), an effective image writable range per image is calculated (ST232). Further, centering processing and cornering processing are performed according to the centering / cornering designation (ST236) (ST238 to ST246). That is, the image shift vector at the centering time and the image shift vector at the cornering time are calculated. Thereafter, an image development position vector is determined (ST248), and image development processing is executed (ST250 to 252).

  Next explained is the third embodiment of the invention. The third embodiment relates to output image reduction and concatenation processing in the copying function, facsimile function, and printer function.

  As described above, the reduction concatenation process is a process in which image data for a plurality of pages (2 pages or 4 pages) is stored in one original and output. This reduction concatenation process is realized by expanding image data for a plurality of pages in a page memory for a single page. Therefore, this reduction and concatenation process may be executed at any timing of image data acquisition (input) and image data output (print). However, in the image forming apparatus according to the present invention, it is assumed that the manuscript is input in descending order when the copying function is executed. In this case, the connection reduction process cannot be executed until the total number of documents is known. That is, in such a case, the concatenation reduction process is executed when the image data is output.

  Here, the reduction connection process will be specifically described with reference to FIGS. 35 and 36. FIG. 35 is a diagram showing an image of the reduction concatenation process for a vertically long document. For example, it is assumed that a vertically long original, an original 1 (first page), an original 2, an original 3, and an original 4 (last page) are to be reduced and connected. At this time, the reduction concatenation processing by horizontal writing 4in1, vertical writing 4in1, horizontal writing 2in1, or vertical writing 2in1 results in processing as shown in FIG.

  FIG. 35 is a diagram showing an image of the process for reducing and concatenating horizontally long originals. For example, it is assumed that the horizontally long original, the original 1 (first page), the original 2, the original 3, and the original 4 (last page) are to be reduced and connected. At this time, the reduced concatenation processing by horizontal writing 4in1, vertical writing 4in1, horizontal writing 2in1, or vertical writing 2in1 results in processing as shown in FIG.

  Since the image forming apparatus of the present invention supports a plurality of functions as described with reference to FIG. 19, the direction of the image developed on the page memory is not uniform. Therefore, in the image forming apparatus according to the present invention, it is necessary to perform the reduction and connection process with sufficient attention to the direction of image data that differs depending on the job type. Such connection reduction processing is executed based on the reduction connection processing / standard division processing table shown in FIGS. This reduced concatenation process / standard division process table is stored in the NVRAM 34.

  The reduction concatenation process at the time of image output is executed as shown in the flowcharts of FIGS. The connection pattern is selected in the calculation part of the page memory write position in this flowchart. The reduction concatenation process at the time of image input is executed as shown in the flowchart of FIG. The connection pattern is selected in the calculation part of the page memory write position in this flowchart.

  Further, although an effect of reduction connection is that paper is saved, the image forming apparatus according to the present invention has a mode in which FAX reception data is always output to 2 in 1 for the purpose of paper saving by an initial setting. However, the FAX may be difficult to read due to the reduction process depending on the resolution. In view of this, in the job analysis process (ST106) shown in the flowcharts of FIGS. 14 and 15, a process of enabling or disabling the designation of reduced concatenation according to the FAX resolution is executed. For example, if the resolution is less than or equal to a predetermined resolution, the reduction connection process (2 in 1) setting is invalidated.

  Here, the reduced concatenation process executed based on the reduced concatenation process / standard division process table shown in FIGS. 37 to 42 will be described. It is assumed that the relationship between the coordinates of the page memory and the region as a premise is as shown in FIG. That is, the region a → (0, 1), the region b → (0, 0), the region c → (1, 1), and the region d → (1, 0). The counter counter in the reduced concatenation processing / standard division processing table is a variable prepared for associating the order of pasting 0, 1, 2, and 3 from the top with respect to the completion of the document regardless of the ascending order or descending order. is there. That is, 0, 1, 2, 3 are counted in ascending order, and 3, 2, 1, 0 are counted in descending order. For example, when the document shown in FIG. 35 is filed in the order of document 4 (last page) → document 3 → document 2 → document 1 (first page), the counters 3, 2, 1, 0 are set. Turned. Conversely, if the document is filed in the order of document 1 (first page) → document 2 → document 3 → document 4 (last page), the counters 0, 1, 2, and 3 are rotated. .

  Based on such assumptions, the horizontal writing 4in1 reduced concatenation process based on the table shown in FIG. 37, the vertical writing 4in1 reduction concatenating process based on the table shown in FIG. 38, and the horizontal writing 2in1 based on the table shown in FIG. Reduced concatenation process of short document / longitudinal page memory in main scanning direction), reduced concatenation process of horizontal writing 2 in 1 (longitudinal document in main scanning direction / short page memory in main scanning direction) based on the table shown in FIG. 40, table shown in FIG. The vertical writing 2 in 1 (main scanning direction short document / main scanning direction long page memory) is reduced and concatenated, and the vertical writing 2 in 1 (main scanning direction long original / main scanning direction short page memory) is based on the table shown in FIG. The reduced concatenation process is executed. As a result, the reduced concatenation process can be executed by absorbing the difference in the development state on the page memory by each function.

  Next explained is the fourth embodiment of the invention. The fourth embodiment relates to the regular division processing of the output image in each of the copying function and the facsimile function.

  First, the regular division process will be described. The regular division processing is a function of dividing and capturing one original as two or four pieces of image data, forming a file, printing, and FAX transmission. FIG. 44 shows an image of the regular division process. Further, the regular division processing can be considered as the reverse of the reduction concatenation processing. In view of this, the regular division process can be imagined in FIGS. 35 and 36. In the image forming apparatus according to the present invention, a single original is scanned as many times as the number of sheets to be divided, only a portion (sub-scanning direction) of a range to be captured is scanned, and a necessary portion (main scanning direction) is cut out. The processing is realized by expanding the image data into a page memory and converting the image data into a file.

  Since the image forming apparatus of the present invention supports a plurality of functions as described with reference to FIG. 19, the direction of the image developed on the page memory is not uniform. Therefore, in the image forming apparatus according to the present invention, it is necessary to perform the regular division process with sufficient attention to the direction of image data that differs depending on the job type. Such a regular division process is executed based on the reduced concatenation process / standard division process table shown in FIGS. This reduced concatenation process / standard division process table is stored in the NVRAM 34.

  In the image forming apparatus of the present invention, the image cutout range is determined in the reading position calculation processing unit shown in the flowchart of FIG. Here, a method of determining the image cutout range will be described with reference to the flowchart of FIG. When the regular division processing is not valid (ST262, NO), a normal reading start position is set (ST264), and reading is started from the set reading start position. When the regular division processing is valid (ST262, YES), the image development position vector on the page memory is determined according to FIGS. 37 to 42 (ST266), and the reading start position is set based on this (ST268). , ST270), reading is started from the set reading start position.

  37 based on the table shown in FIG. 37, horizontal division 1out4 based on the table shown in FIG. 38, vertical division 1out4 based on the table shown in FIG. 38, horizontal writing 1out2 based on the table shown in FIG. Page memory) regular division processing, horizontal writing 1out2 (main scanning direction longitudinal original / main scanning direction short page memory) based on the table shown in FIG. 40, vertical writing 1out2 (main scanning based on the table shown in FIG. 41) Normal division processing of the direction short document / main scanning direction long page memory) and vertical division 1out2 (main scanning direction long original document / main scanning direction short page memory) are executed based on the table shown in FIG. . Thereby, it is possible to absorb the difference in the development state on the page memory by each function and execute the regular division processing.

  Next explained is the fifth embodiment of the invention. The fifth embodiment relates to double-sided printing processing executed according to the copying function, the facsimile function, and the printer function.

  In the image forming apparatus of the present invention, the double-sided printing process is executed by the method described above. At this time, due to the mechanical properties of the automatic duplexer 270, after the front surface (first surface) of the paper is printed, it is reversed with the main scanning direction as an axis, and the back surface (second surface) is printed. That is, the main scanning direction is a coupling axis for double-sided printing. This property is suitable for double-sided printing processing with the main scanning direction as the coupling axis as shown in FIG. Further, in the image forming apparatus (equipped with a digital copying function) of the present invention, double-sided printing with the sub-scanning direction as shown in FIG. 47 as the coupling axis is performed by rotating the data on the memory 180 degrees and transferring it to the printer. Processing can also be realized.

  The image forming apparatus according to the present invention executes double-sided printing with the main scanning direction or the sub-scanning direction as a coupling axis according to the following situation. For example, when binding margin processing is designated when the copying function is executed or when the printer function is executed, duplex printing is executed with the binding margin direction as the coupling axis. That is, when the binding margin direction is the main scanning direction, double-sided printing is performed with the main scanning direction as the coupling axis, and when the binding margin direction is the sub-scanning direction, duplex printing is performed with the sub-scanning direction as the coupling axis. Further, when the binding margin process is not specified when the copying function or the printer function is executed, duplex printing is executed with the main scanning direction as the coupling axis. Further, when the facsimile function is executed, double-sided printing is executed with the sub-scanning direction as the coupling axis (in the case of FAX, it is desirable to use the sub-scanning direction as the coupling axis from the characteristics of the image transfer direction). As a result, it is possible to save the trouble of specifying the coupling axis each time double-sided printing is performed. That is, according to the present invention, it is possible to provide an image forming apparatus excellent in operability during double-sided printing.

  Such double-sided printing processing is executed according to the rotation angle calculated by the rotation angle calculation processing unit shown in the flowcharts of FIGS. In this rotation angle calculation processing unit, the orientation of the original and the orientation of the image data developed on the page memory are absorbed in order to absorb the difference in the development state on the page memory depending on the copying function, facsimile function, and printer function. Is calculated as a rotation angle. Further, in the case where the sub-scanning direction is the coupling axis for double-sided printing, the final rotation angle is calculated by adding 180 degrees to the calculated rotation angle in order to increase the rotation angle by 180 degrees during the second surface printing. Is done.

  Here, the rotation angle calculation processing will be described with reference to FIG. First, in order to absorb the difference in the development state on the page memory depending on the copy function, facsimile function, and printer function, the correspondence between the orientation of the original and the orientation of the image data developed on the page memory A rotation angle (rotation angles 1 and 2) is calculated (ST282 to ST292). If the second side is to be printed by double-sided printing (ST294, YES), it is determined from the job type whether the combined axis of double-sided printing is the main scanning direction or the sub-scanning direction (ST296). -ST310). If it is determined that the coupling axis for duplex printing is the sub-scanning direction (YES in ST310), 180 degrees is added to the rotation angle for associating the orientation of the document with the orientation of the image data developed on the page memory. The obtained rotation angle is calculated as the final rotation angle (ST312 to ST314). When it is determined that the coupling axis of the duplex printing is the main scanning direction (ST310, NO), the rotation angle for making the orientation of the document correspond to the orientation of the image data developed on the page memory is the final rotation. Calculated as an angle (ST314).

  Next, a sixth embodiment of the present invention will be described. The sixth embodiment relates to a document double-sided input process executed in accordance with each of a copying function and a facsimile function.

  The image forming apparatus according to the present invention can realize double-sided input of a document using the ADF 207. Due to the mechanism of the ADF 207, the original is reversed and read in the main scanning direction. Accordingly, when the coupling axis of the double-sided original is in the main scanning direction, the direction of the original is set on the original table 212 without changing between the front side (first side) and the back side (second side).

  When executing the copying function, the double-sided document is generally set on the ADF 207 so that the coupling axis is in the main scanning direction. However, in order to execute the facsimile function, it is common for a double-sided document to be set on the ADF 207 so that the coupling axis is in the sub-scanning direction. In this case, the orientation of the document on the front and back sides is reversed. .

  Therefore, in the image forming apparatus of the present invention, when inputting both sides of the original when executing the facsimile function, a rotation of 180 degrees is added to the rotation for image editing when inputting the reverse side. Of course, only the rotation for image editing is performed at the time of document input when the copying function is executed. As a result, it is possible to execute both-side input of a document when the facsimile function is executed without any problem. In addition, such rotation processing is performed by the encoding / compression processing unit shown in the flowchart of FIG.

  Next explained is the seventh embodiment of the invention. The seventh embodiment relates to post-printing stapling processing executed according to the copying function, facsimile function, and printer function.

  The image forming apparatus according to the present invention executes a staple process in the finisher 300 shown in FIG. Here, the finisher 300 shown in FIG. 2 will be described with reference to FIGS. 49 to 51. The finisher 300 staples and stores a series of discharged documents in units of parts. As shown in FIG. 49, each time the copy paper P to be stapled is discharged from the single sheet discharge port 261, the guide bar 301 is moved toward the staple side and aligned. When all the paper has been discharged, the paper presser arm 302 suppresses the partial copy paper P discharged, and the stapler unit 303 performs stapling. After that, the guide bar 301 is lowered to the position shown by the broken line in FIG. 50, and the copy paper P after stapling is discharged to the discharge tray 362 by the finisher discharge roller 305 as shown in FIG. . The lowering amount of the discharge tray 362 is determined to some extent by the number of copy sheets P to be discharged, and decreases step by step each time it is discharged in some units. Further, the guide bar 301 for aligning the copy paper P to be discharged is at such a height that it does not hit the copy paper P already stapled on the discharge tray 362.

  In the above description, the case where the staple position is fixed to the front side in the apparatus main body 200 direction as an example of the finisher has been described. However, in the finisher that can be optionally set in the image forming apparatus of the present invention, the staple position is set to the front side in the apparatus main body 200 direction. Some can be specified on either side. In the image forming apparatus according to the present invention, when both the binding margin processing and the staple processing are designated, a specification for stapling on the side having the binding margin is employed. Further, when only the staple processing is designated, a specification is adopted in which staples are placed on the upper left side of the image. In addition, depending on the vertical writing / horizontal writing information given when the reduced concatenation processing or the regular division processing is specified, a specification of stapling the upper right for vertical writing and the upper left for horizontal writing may be considered. Details are omitted.

  When realizing the above specifications, the staple position is limited (can only be stapled to the front side of the ejected paper in the direction of the apparatus main body 200). Therefore, the image data is appropriately rotated to form an image. By doing so, staples are made at appropriate positions.

  The image data rotation processing for the stapling processing is executed according to the tables shown in FIGS. 52 and 53 in the flowchart of FIG. When the paper orientation can be changed, the rotation angle and the stapling position of the image data are determined according to the table shown in FIG. 52, and when the paper orientation cannot be changed, the table shown in FIG. Note that the tables shown in FIGS. 52 and 53 are stored in the NVRAM 34. Incidentally, the upper part of each table in FIGS. 52 and 53 shows the rotation angle of the image data and the staple position when the stapling position can be designated on the front side and the far side of the apparatus main body 200, and the lower stage designates the stapling position. The rotation angle and the staple position when they cannot be shown are shown. Further, the back 0 degree and the back 180 degree mean that the staple cannot be correctly stapled when the staple position is the finisher fixed to the apparatus main body 200 side. Therefore, in this case, the stapling process is canceled or the paper is reversed using the duplex printing method, and the paper is discharged face down and stapled (back 0 degree: paper is reversed without rotation, back 180 degree: 180 degree rotation and paper reversal).

  Next, an eighth embodiment of the invention will be described. The eighth embodiment relates to a paper feed process in a print process executed in accordance with each of a copying function, a facsimile function, and a printer function.

  In the conventional digital copying machine, the following process is executed when the paper runs out during the printing process. If the rotation printing is possible, the printing process is performed on the paper corresponding to the rotation printing (continuation of the printing process). If the rotation printing is impossible, for example, if the paper corresponding to the rotation printing cannot be obtained, the printing process is interrupted. Such processing was considered optimal for the copy function alone.

  Since the image forming apparatus of the present invention has a plurality of functions such as a copying function, a facsimile function, and a printer function, the above-described processing is not sufficient. For example, there are the following problems when the facsimile function is executed. Assume that printing processing (FAX reception processing) is started by the facsimile function when the user is not nearby, such as at night. In this case, when the printing process is interrupted due to running out of paper, the received image data is accumulated in the storage device such as the file memory 68 or the HDD 37. At this time, there is no problem if all the received image data can be accumulated, but depending on the amount of information of the received image data or the storage capacity of the storage device, it may not be possible to accumulate all the received image data. In such a case, reception of image data itself is interrupted.

  In order to solve such a problem, in the image forming apparatus according to the present invention, if rotation printing cannot be executed when a predetermined size of paper is out of print, the paper size is changed and printing is continued. When executing the paper size change printing process for changing the paper size and continuing printing, the paper size to be changed is determined by the paper source switching possibility determination unit shown in the flowcharts of FIGS. Here, the processing in the paper source switching possibility determination unit will be described with reference to the flowchart of FIG.

  First, a job is first classified (ST322). In the case of a copy job by the copy function and a print job by the printer function, the paper size change printing process is not executed. That is, it is determined that the paper source cannot be changed (ST324). In the case of a FAX job by the facsimile function, a paper size change printing process is executed.

  When a paper having a size larger than the designated paper size designated by the image data to be printed is obtained (ST326, YES), the paper source is changed to a paper having a size larger than the designated size (ST336, ST338). . That is, when a paper having a size larger than the specified size is obtained, the printing process is performed on a paper having a size larger than the specified size.

  When only a paper having a size smaller than the designated paper size designated by the image data to be printed can be obtained (ST326, NO), the allowable change magnification is determined from the table showing the relationship between the resolution and the allowable change magnification shown in FIG. Is obtained (ST328). When printing can be performed on a paper having a size smaller than the designated paper size with the obtained allowable change magnification (ST330, YES), the paper source is changed to a paper having a size smaller than the designated size (ST334, ST338). ). If printing cannot be performed on a paper having a size smaller than the designated paper size according to the obtained allowable change magnification (ST330, NO), the paper source is not changed (ST332, ST338). That is, when a paper having a size smaller than the designated size is obtained and printing on the paper can be performed with the allowable change magnification, printing processing is performed on the paper having a size smaller than the designated size according to the allowable change magnification. Thereby, it is possible to sufficiently support the printing process when the paper runs out.

  Hereinafter, it is as follows when the effect by the 1st-8th embodiment described above is put together.

  According to the first embodiment, the printing order (ascending order or descending order) is determined according to the job type such as the copying function, the facsimile function, and the printer function, and the discharging method (face-up or face-down) according to the printing order. Therefore, the image forming process can be executed without impairing the characteristics of the copying function, facsimile function, and printer function. Furthermore, since the printing order is switched according to the remaining storage capacity of the storage device that stores the image data, it is possible to prevent errors due to memory full.

  According to the second to seventh embodiments, the top and bottom of the image data developed in the page memory based on the characteristics at the time of acquisition of image data that differs depending on the job type such as the copying function, the facsimile function, and the printer function. Since the left and right are determined, various image data development states are absorbed depending on each function (cornering processing, reduction / concatenation processing, regular division processing, binding margin processing, double-sided printing processing, double-sided input processing, stapling processing, etc.) Can be performed accurately.

  According to the second embodiment, depending on the type of job such as a copying function, a facsimile function, and a printer function, there are those that place importance on the image development position and those that place importance on other elements (communication time, etc.). Processing is executed with attention. For example, when the facsimile function is executed, unnecessary increase in communication time can be prevented by partially canceling the centering process and the cornering process in the sub-scanning direction. Thus, the conventional centering process and cornering process can be maintained in the copying function and the printer function.

  Further, when the centering process or the cornering process and the binding margin process are specified in an overlapping manner, the centering process and the cornering process are provided with a function for canceling the centering process and the cornering process in the direction orthogonal to the binding margin. Data lost due to image shifts due to processing can be minimized.

  According to the third embodiment, when the reduced concatenation process is designated at the time of executing the facsimile function, if the image data having a resolution lower than the predetermined resolution is received, the reduction concatenation process is invalidated. As a result, it is possible to prevent a reduction and concatenation process in which the content of the document received by the facsimile cannot be confirmed (preventing meaningless editing).

  According to the fifth embodiment, when the binding margin is specified in the double-sided printing process by the copying function and the printer function, the images formed on the first surface (front surface) and the second surface (back surface) of the sheet are combined. The axis is determined in the binding margin direction. When the binding margin is not specified in the double-sided printing process by the copying function and the printer function, the coupling axis of the images formed on the first surface and the second surface of the paper is determined in the main scanning direction. In the double-sided printing process using the facsimile function, the coupling axis of images formed on the first and second sides of the paper is determined in the sub-scanning direction. As a result, a print result that does not cause inconsistency in relation to the binding margin is obtained. When the binding margin is invalid, the direction (horizontal direction) next to the image is the combined axis regardless of the job type, and the user can select the job type. Double-sided printing can be performed without being conscious of

  According to the sixth embodiment, when a double-sided document is input by the copying function, only the rotation necessary for editing is added to the input image data to form a file, and when a double-sided document is input by the facsimile function, the input image corresponding to the first side of the document Only the rotation necessary for editing is added to the data to be filed, and the input image data corresponding to the second surface is further rotated 180 degrees in addition to the rotation necessary for editing to be filed. This makes it possible to create a file with the image orientation aligned, and when executing the copy function, it is possible to perform print processing regardless of whether the original is a single-sided document or a double-sided document. It is possible to obtain a print result in which the directions of the images are aligned even if information on whether the document is a single-sided original or a double-sided original is not transmitted.

  According to the seventh embodiment, when two types of options, a finisher that can change the position of staples and a non-finished option, are prepared, it is possible to perform staple processing that fully utilizes the characteristics of each finisher. It is possible to minimize the occurrence of stapling errors by changing the rotational printing angle of the image in accordance with the installed finisher. The staple error indicates a process in which the staple process is stopped when the staple process cannot be performed at the designated position.

  In addition, when there are two types of options, a finisher that can change the position of the staple and a non-finisher, a finisher that is installed so that the staple processing can be performed fully utilizing the features of each finisher. Accordingly, it is possible to minimize the occurrence of stapling errors by changing the angle of rotational printing of the image and reversing the paper if permitted by the initial setting.

  According to the eighth embodiment, the response when the paper runs out is performed according to the job type such as a copying function, a facsimile function, and a printer function. For example, the printing process is interrupted when the copy function is executed and the printer function is run out of paper. If there is a paper out during execution of the facsimile function, if there is paper larger than the specified size, there is no larger size paper than the specified size paper, and smaller than the specified size paper. If there is a sheet of a size, it is reduced and printing processing is performed on the sheet of this small size. As a result, a facsimile communication error due to running out of paper can be avoided.

1 is a perspective view showing an example of the appearance of a composite image forming apparatus (multifunction copying apparatus) according to an embodiment of the present invention. FIG. 2 is a schematic diagram structurally illustrating an example of an internal configuration of the composite image forming apparatus illustrated in FIG. 1. FIG. 2 is a block diagram functionally illustrating an example of an internal configuration of the composite image forming apparatus illustrated in FIG. 1. FIG. 4 is a block diagram illustrating an example of a configuration of a FAXC unit illustrated in FIG. 3. The figure which shows an example of a structure of the operation panel shown in FIG.1 and FIG.3. The block diagram which shows an example of a structure of the touchscreen display shown in FIG. FIGS. 1 to 3 show a flow of a standard G3 facsimile communication protocol used in the composite image forming apparatus shown in FIGS. 1 to 3, and in particular, a G3 facsimile communication protocol for transmitting transmission data for only one page (no subsequent page). The figure which illustrates a flow. 1 to 3 show the flow of a standard G3 facsimile communication protocol used in the composite type image forming apparatus shown in FIGS. 1 to 3, and particularly G3 facsimile communication when transmitting transmission data of a plurality of pages without changing transmission conditions. The figure which illustrates the flow of a protocol. 1 to 3 show a flow of a standard G3 facsimile communication protocol used in the composite image forming apparatus shown in FIGS. 1 to 3, and in particular, a case where transmission data (with subsequent pages) is transmitted by changing transmission conditions It is a figure which illustrates the flow of the communication protocol of. FIG. 4 is a schematic diagram illustrating an example of the overall configuration of the composite image forming apparatus illustrated in FIGS. 1 to 3. Schematic which shows an example of a structure of PRNC shown in FIG. Schematic which shows an example of a structure of the input / output control part shown in FIG. FIG. 13 is a flowchart showing document input processing executed by the document data input unit shown in FIG. 12. FIG. 13 is a flowchart showing print processing executed by the image data printing unit shown in FIG. FIG. 13 is a flowchart showing print processing executed by the image data printing unit shown in FIG. FIG. 11 is a diagram illustrating an example of a job parameter table that stores parameters related to various job controls in the overall control unit, input / output control unit, copy control unit, print control unit, and FAX communication control unit shown in FIG. 10. FIG. 13 is a diagram illustrating an example of a parameter table that stores parameters required for input processing in the document data input unit illustrated in FIG. 12 and print processing in the document data printing unit. FIG. 4 is an image diagram of a portrait document (vertical document) and a landscape document (landscape document). The figure explaining the transfer direction of image data and the expansion | deployment state of image data divided for every copying function, a facsimile function, and a printer function. The figure explaining the image writing direction with respect to QNT / PM. The figure which shows the image of discharge by the face down performed at the time of ascending order printing, and the discharge by the face up performed at the time of descending order printing. FIG. 3 is a flowchart showing print output control executed in the first embodiment. The figure which shows the image of a centering process and a cornering process. FIG. 16 is a flowchart specifically illustrating a page memory write position calculation process in the flowcharts of FIGS. 14 and 15. FIG. 16 is a flowchart specifically illustrating a page memory write position calculation process in the flowcharts of FIGS. 14 and 15. The flowchart figure which shows the write-in process of the image with respect to page memory. The figure which shows an example of the cornering process position conversion table by a binding margin. The figure which shows an example of a cornering process position conversion table. The figure which shows an example of a binding margin process position conversion table. The figure which shows an example of a binding margin process position conversion table. The figure explaining the premise of binding margin processing. The figure explaining the binding margin process at the time of copy function execution. The figure explaining the binding margin process at the time of facsimile function execution. The figure explaining the binding margin process at the time of printer function execution. The figure explaining the premise of reduction concatenation processing. The figure explaining the premise of reduction concatenation processing. The figure which shows an example of a reduction | restoration connection process / standard division | segmentation process table. The figure which shows an example of a reduction | restoration connection process / standard division | segmentation process table. The figure which shows an example of a reduction | restoration connection process / standard division | segmentation process table. The figure which shows an example of a reduction | restoration connection process / standard division | segmentation process table. The figure which shows an example of a reduction | restoration connection process / standard division | segmentation process table. The figure which shows an example of a reduction | restoration connection process / standard division | segmentation process table. The figure which shows the relationship between the coordinate on a page memory, and an area | region. The figure explaining the premise of a fixed form division process. FIG. 14 is a flowchart specifically showing reading position calculation processing in the flowchart of FIG. 13. The figure which shows the image of the double-sided printing process result which made the main scanning direction the coupling axis. The figure which shows the image of the double-sided printing process result which made the sub-scanning direction the coupling axis. The flowchart figure which shows the calculation process of the rotation angle in the flowchart figure of FIG.14 and FIG.15 concretely. The figure explaining the staple driving | operation by a finisher. The figure explaining the staple driving | operation by a finisher. The figure explaining the staple driving | operation by a finisher. The figure which shows an example of the image rotation angle table required in the case of a staple process. The figure which shows an example of the image rotation angle table required in the case of a staple process. FIG. 16 is a flowchart specifically showing a paper source switching possibility determination process in the flowcharts of FIGS. 14 and 15. The figure which shows the relationship of the permissible change magnification with respect to the resolution of the image data received at the time of facsimile function execution.

Explanation of symbols

30 ... Main CPU
34 ... NVRAM
37 ... HDD
38 ... ODD
42 ... IPU
44 ... Page memory 50 ... Scanner unit 52 ... Printer unit 56 ... SCSI
58 ... FAXC
68 ... File memory 102 ... Touch panel 106 ... Touch panel control unit 112 ... Input / output control unit 114 ... Copy control unit 116 ... Operation panel control unit 118 ... Overall control unit 120 ... FAX communication control unit 122 ... Print control unit

Claims (6)

A copying function for acquiring image data to be copied and executing an image forming process based on the image data, a facsimile function for acquiring image data to be a facsimile receiving target and executing an image forming process based on the image data, and a printing object In the image forming apparatus having at least one of the printer functions for acquiring the image data and executing the image forming process based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
When an image based on the image data stored in the storage means is formed on the first and second surfaces of the image forming medium for which the binding margin is specified, the images formed on the first and second surfaces are combined. Determining means for determining the axis in the binding margin direction;
Image data formed on the first surface and the second surface so that the images formed on the first surface and the second surface of the image forming medium are combined by the binding axis in the binding margin direction determined by the determining means. And image forming means for forming an image based on the developed image data,
An image forming apparatus comprising: A copying function for acquiring image data to be copied and executing image forming processing based on the image data, a facsimile function for acquiring image data to be received by facsimile and executing image forming processing based on the image data, and a printing target In an image forming apparatus having at least the printer function and the facsimile function among printer functions for acquiring image data to be obtained and executing an image forming process based on the image data,
An acquisition means for acquiring image data;
Storage means for storing the image data acquired by the acquisition means;
When images based on the image data acquired by the copying function and the printer function are formed on the first surface and the second surface of the image forming medium, the coupling axes of the images formed on the first surface and the second surface Is formed on the first and second surfaces when images based on the image data acquired by the facsimile function are formed on the first and second surfaces of the image forming medium. Determining means for determining the image combining axis in the sub-scanning direction;
Formed on the first surface and the second surface so that the images formed on the first surface and the second surface of the image forming medium are combined with the connecting axis in the main scanning direction or the sub-scanning direction determined by the determining means. Image forming means for expanding the image data to be formed and forming an image based on the expanded image data;
An image forming apparatus comprising: In an image forming apparatus having a copying function for acquiring image data to be copied and executing an image forming process based on the image data, and a facsimile function for acquiring image data to be transmitted by facsimile and transmitting the image data
Acquisition means for acquiring image data obtained from the first side and the second side of the document;
Storage means for storing the image data acquired by the acquisition means;
When the images based on the image data stored in the storage means are formed on the first surface and the second surface of the image forming medium, the positional relationship between the first surface and the second surface is the same as that of the document. Rotation processing means for performing rotation processing on image data obtained from the first surface or the second surface of the document as needed based on characteristics at the time of acquisition of image data different depending on functions;
Image forming means for executing image forming processing based on image data acquired by the acquiring means and subjected to rotation processing as necessary;
Transmitting means for transmitting image data acquired by the acquisition means and subjected to rotation processing as necessary;
An image forming apparatus comprising: In an image forming apparatus having a copying function for acquiring image data to be copied and executing an image forming process based on the image data, and a facsimile function for acquiring image data to be transmitted by facsimile and transmitting the image data
Acquisition means for acquiring image data obtained from the first side and the second side of the document;
Storage means for storing the image data acquired by the acquisition means;
When the images based on the image data stored in the storage means are formed on the first surface and the second surface of the image forming medium, the positional relationship between the first surface and the second surface is the same as that of the document. Rotation processing means for performing rotation processing on image data obtained from the first surface or the second surface of the document as needed based on characteristics at the time of acquisition of image data different depending on functions;
Image forming means for executing image forming processing based on image data acquired by the acquiring means and subjected to rotation processing as necessary;
Transmission means for transmitting image data acquired by the acquisition means and subjected to rotation processing as necessary,
The rotation processing means includes an image formed on the first surface and a second surface in order to form an image based on the image data acquired by the facsimile function on the first surface and the second surface of the image forming medium. An image forming apparatus, wherein a predetermined rotation process is performed on the image data so that a positional relationship with an image formed on the image becomes a positional relationship rotated by 180 degrees.   In the copying function, image data is acquired in descending order, in the facsimile function, image data is acquired in ascending order, and in the printer function, image data is acquired in ascending order or descending order. The image forming order is controlled by the means, and when forming an image in descending order, the medium on which the image is formed is discharged face up, and when forming an image in the ascending order, the medium on which the image is formed is discharged face down. The image forming apparatus according to claim 1, further comprising a formation control unit. The rotation processing means includes
When an image based on the image data is formed on the first surface and the second surface of the image forming medium, in the copying function, the vertical direction of the image coincides with the main scanning direction, and the image forming medium has the main scanning direction as an axis. In the facsimile function, the first surface and the second surface are formed on the basis of the feature of each function that the left and right direction of the image coincides with the main scanning direction and the image forming medium is inverted about the main scanning direction. 4. The rotation angle with respect to the image data is calculated so that the positional relationship of the surfaces becomes a predetermined relationship, and the rotation process is performed on the image data based on the calculated rotation angle. Image forming apparatus.

Images