JPH0624083A - Perfecting press - Google Patents

Abstract

PURPOSE:To provide a perfecting press capable of selecting the method of the binding of a form and the quantity of a binding margin at desired values without changing printing data from a host device. CONSTITUTION:When printing data are received from a host device 3, a data control section 4 edits the printing data in response to data from the binding- margin information section 6 of a form and prepares image data on an image memory 5. The image data corresponding to a binding margin are erased at that time. A printing command is issued to a printing section 7, and the image data are printed on the form, but a video control section 9 sets and controls the read start address of the image memory 5 in response to the two sides and size of the form and the method of the binding and quantity of binding margin of the form at that time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided printing apparatus, and more particularly to a double-sided printing apparatus for generating a print format with a binding margin for bookbinding.

[0002]

2. Description of the Related Art Conventionally, in a double-sided printing device of this type, print data of a fixed format sent from a host device is
Printing is performed by editing and generating image data according to the type (size) of the set paper and the front and back sides of the printing surface. Therefore, when printing according to the binding method and binding margin of the paper at the time of bookbinding, it is indispensable to generate print data according to the binding method and binding margin of the paper in the host device and send it to the printing device. is there.

[0003]

In the above-described conventional double-sided printing apparatus, since the editing and the image data generation are performed according to the paper type and the printing surface, the binding direction of the paper and the binding margin amount are determined by the upper apparatus. At, it is always fixed in a fixed direction and fixed amount. Therefore, if you change the binding direction and binding amount of the paper, the printed result is often very difficult to see as it is. There is a problem in that the print data from the printer must be changed, which complicates the work.

[0004]

SUMMARY OF THE INVENTION A double-sided printing apparatus according to the present invention includes a margin information section for issuing setting information on the binding method and binding amount of sheets, a sheet cassette for issuing information indicating the type of the sheet, and a predetermined size. From the image memory, a data control unit that generates image data of format print data according to the setting information, the paper type information, and information indicating the front and back of the paper, an image memory that temporarily stores the image data, and the image memory. A video control unit for controlling reading of the image data, and a printing unit for printing data on the image memory on the front surface or the back surface of the paper.

[0005]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. The print control unit 1 edits print data and generates image data, and at the same time controls the entire duplex printing. The print mechanism unit 2 is the print control unit 1.
The image data is printed on the front surface or the back surface of the paper in accordance with the command. The double-sided printing device of this embodiment is
It is composed of a printing control unit and a printing mechanism unit 2, and the higher-level device 3 sends printing data to this double-sided printing device.

The data control unit 4 of the print control unit 1 converts the print data of the page terminal into a paper format to be printed and, at the same time, generates image data for printing. The image memory 5 temporarily stores the image data generated by the data control unit 4. The video control unit 9 reads the image data from the image memory 5 and sends it to the printing mechanism unit 2. The binding margin information section 6 holds information on the binding method and binding amount designated by the higher-level device 3 or set by the operator of the double-sided printing device.

The printing section 7 of the printing mechanism section 2 generates an image image from the image data sent from the video control section 9 and prints it. The paper cassette 8 is for stacking paper for printing. The type of stacked sheets is notified to the data control unit 4.

FIG. 2 shows the image data 10 and 11 stored in the image memory 5 and the image reading area 12 sent from the video control section 9 to the printing mechanism section 2 in this embodiment.
13, 14, 15 and the print result 1 by the print mechanism unit 2
It is a classification diagram which illustrated 6, 17, 18, and 19.

FIG. 3 is a process diagram illustrating the process from image generation to bookbinding completion in this embodiment.

The operation of this embodiment will be described below with reference to FIGS.

When the print data is transferred from the higher-level device 3, the data control section 4 informs the binding method and binding amount given from the binding information section 6 and the type and printing of the sheet given from the sheet cassette 8. The format to be printed is determined according to the information indicating the front and back of the surface, the print data received from the higher-level device 3 is converted into the format to be printed page by page, and the image data 20 to be stored in the image memory 5 is stored. To generate. For example, as shown in FIG. 3, when the final print result is the booklet binding 21, the original image as shown in the image data 20 is first generated on the image memory 5. Next, the image data of the margin portion 10 is erased according to the margin information of the sheet. After this, the print controller 1
Issues a print command to the print mechanism unit 2 to print the image data on the front surface or the back surface of the paper. At this time, the video control unit 9 sets the image reading area according to the instruction from the data control unit 4. In the case of binding binding surface printing, the area 12 in FIG. 2 is read from the read start address S at the upper left end of the image data erasing portion. Reference numeral S in the image data and areas 12, 13, 14, and 15 in FIG. 2 indicates a read start address, and reference numeral E indicates a read end address. Areas 12, 13, 14,
The solid line arrow in 15 indicates the horizontal read direction, and the broken line arrow indicates the vertical read direction. In addition, area 1 in FIG.
Although the read start addresses S of 2 and 14 are out of the address range of the generated image data, it is hypothesized that the data space on the image memory 5 exists also in this portion, and nothing is written. Output the image.

By the above operation, it is possible to obtain a print result in which the binding margins 16, 17, 18, and 19 with the specified binding method are provided. If this binding method is used for binding, left binding or top binding Get 21 or 22.

FIG. 4 is a classification diagram showing another example of image reading in the embodiment of FIG. 1, and FIG. 5 is a process diagram showing a process from image generation by image reading to bookbinding completion in FIG. is there.

When print data is transferred from the higher-level device 3 in FIG. 1, the data control unit 4 informs the binding method from the binding margin information unit 6, the type of paper from the paper cassette 8 and the front and back sides of the printing surface. Image data 20 to be stored in the image memory 5 by editing the print format page by page in accordance with the information indicating Next, the print control unit 1 issues a print command to the print mechanism unit 2 to print the image data 20 on the front surface or the back surface of the paper. At this time, the video control unit 9
The image reading area is set in accordance with the command from the data control unit 4, and at the same time, the reading timing is controlled.
At this time, the video control unit 9 outputs an image in which nothing is written in the unnecessary portions 32, 33, 34, and 35 corresponding to the binding margin in the image read data.

By the above-described operation, a printing result having the binding margins 16, 17, 18, and 19 in the specified binding method is obtained, and if the binding result is bound, the left binding 21 or the upper binding binding is performed. 22 can be obtained.

[0017]

As described above, according to the present invention, it is possible to perform printing in accordance with the binding method and the binding amount of sheets,
It is possible to perform printing with a desired binding method without having to change the print data from the host device each time.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a classification diagram for explaining an embodiment of the present invention.

FIG. 3 is a process drawing for explaining the embodiment of the present invention.

FIG. 4 is a classification diagram for explaining an embodiment of the present invention.

FIG. 5 is a process drawing for explaining the embodiment of the present invention.

[Explanation of symbols]

 1 Print Control Section 2 Printing Mechanism Section 3 Upper Device 4 Data Control Section 5 Image Memory 6 Binding Margin Information Section 7 Printing Section 8 Paper Cassette 9 Video Control Section 12, 13, 14, 15 Image Read Area 16, 17, 18, 19 Gutter 20 image data

Claims (3)

[Claims] 1. A binding margin information section for issuing setting information on binding method and binding amount of sheets, a sheet cassette for issuing information indicating the type of the sheet, and image data of print data of a predetermined format as the setting information. A data control unit that generates according to the paper type information and information indicating the front and back of the paper; an image memory that temporarily stores the image data;
A double-sided printing apparatus comprising: a video control unit that controls reading of the image data from the image memory, and a printing unit that prints data on the image memory on a front surface or a back surface of the paper. 2. The image memory temporarily stores the image data erased by the margin of the sheet,
2. The double-sided printing apparatus according to claim 1, wherein the video control unit sets and controls a read start address of the image memory so that printing is not performed at the binding margin. 3. The double-sided printing apparatus according to claim 1, wherein the video control unit sets and controls a read area and a read timing of the image memory so that printing is not performed at a binding margin portion of the paper.