JP2000332950A - Facsimile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide facsimile equipment capable of preventing the division of an image when the both faces are printed. SOLUTION: A CPU 1 controlling the whole, a ROM 2 in which processing procedures are stored, a RAM 3 in which temporary data is stored when processing is performed, a CCU 4 as a communicating means, a DCR 5 as a restoring means, a plotter 6 as a printing means and a PM 7 storing received image data are respectively connected to an internal bus 8. When an received image ranges over a plurality of pages, the CPU 1 selects transfer paper on the basis of the larger image between images to be printed on the surface and rear face of the transfer paper and performs control that prints the images on the surface and rear face of the transfer paper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facsimile machine, and more particularly to a technique for controlling double-sided printing.

As a method for double-sided printing of image data, there is a method of simply transferring an image size to the front and back of a selected transfer sheet, as described in JP-A-10-97157. Currently, some image processing apparatuses used in the market select a transfer paper based on the size of the image of the first page, print the first page, and print the second page on the back of the transfer paper. In many cases, the next transfer paper is selected by determining that the printing cannot be performed.

[0003]

In the conventional double-sided printing, for example, if the image of the first page is B5 size and the image of the second page is B4 size, the first transfer paper B
The image of the first page is transferred to the table of No. 5, the first half of the image of the second page is transferred to the back of the first transfer sheet, and the remainder of the image of the second page is transferred to the table of the second transfer sheet A portion may be printed, and the image is divided and printed, so that the received document becomes difficult to view.

[0004] It is an object of the present invention to provide a facsimile apparatus capable of preventing division of an image during double-sided printing.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a communication unit for receiving image data transmitted through a line, and a restoration of the image data received by the communication unit. A restoring unit, a printing unit that prints the image data restored by the restoring unit, a transfer sheet selecting unit that selects a standard transfer sheet, and a double-sided printing unit that prints image data on both sides of the transfer sheet. When the received image covers a plurality of pages, the control unit selects a transfer sheet based on the larger one of the images to be printed on the front and back of the transfer sheet, and selects the transfer sheet. And a control for printing an image on the back side.

[0006] To achieve the above object, the present invention provides a second aspect.
The described invention includes a communication unit for receiving image data transmitted through a line, a restoration unit for restoring the image data received by the communication unit, a printing unit for printing the image data restored by the restoration unit, and a fixed form. Transfer paper selecting means for selecting transfer paper, double-sided printing means for printing image data on both sides of the transfer paper, and control means for controlling the entire control, the control means, when the received image spans a plurality of pages, 1
Based on the width of the image on the page, select the transfer paper of the longitudinal size, print the image of the size on the table of the transfer paper, and the image of the page following the printed image is the size of the selected transfer paper If it fits in the range, control for printing on the back side is performed.

[0007] In order to improve the usability, claim 3
The described invention is characterized in that the function of the control means according to any one of claims 1 and 2 can be selected.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of a facsimile machine. CPU 1 for controlling the whole, ROM 2 for storing processing procedures, RAM 3 for storing temporary data for performing processing, CCU as communication means
4, a DCR 5 as a restoration unit, a plotter 6 as a printing unit, and a PM 7 for storing received image data are connected to the internal bus 8, respectively. The CCU 4 is connected to an external line. The two-sided printing means and the divided printing means are stored in the ROM 2 as a processing procedure.

FIG. 2 is a flowchart showing a first processing procedure of the duplex printing control. After the front side image is transferred by the double-sided printing means, the transfer sheet is discharged to a double-sided tray, and then the transfer sheet is fed again from the double-sided tray to transfer the back side image. The image received via the CCU 4 is B5 on the first page and B4 on the second page.

When image data is received via the CCU 4 (Y in P1), first, the image size B5 of the first page is detected and stored in S (P2 to P4). Next, the image size B4 of the second page is detected. Since B4 is larger in size than B5, the transfer paper is selected based on B4 (P
5 to P8).

The image of the first page is restored (P9), and B4
The transfer paper of B4 size is fed from the tray where the transfer paper of the size is completed, and the image is transferred (printed) to the front surface (P1).
0, P11). The printed transfer paper is temporarily discharged to a double-sided tray (P12).

Next, the image of the second page is restored (P1
3) Refeed the B4 transfer paper on the double-sided tray (P1
4) The image of the second page is transferred (printed) to the back surface of the B4 transfer paper (P15). Thereafter, the printed transfer sheet is discharged (P16), and the page number is incremented by 2 (P1).
7). Since there is no next third page, the process is terminated here and the next reception is waited.

FIG. 3 is a flowchart showing a second processing procedure of the duplex printing control. In this example, it is assumed that the image received via the CCU 4 is B5 for the first page, B5 for the second page, B4 for the third page, and B5 for the fourth page.

When image data is received via the CCU 4 (Y in P21), first, the width of the image of the first page is detected (P22 to P24), and a long-size transfer sheet is selected based on the width. (P25). In this case, the B5 width is detected,
B4 is selected as the longitudinal size.

The length (data) of the selected transfer paper is LT
(P26). Here, the length of B4 is 364 mm
Enters. The length 182 mm of the image B5 of the first page is detected, and it is checked whether or not this is within the LT. B
Since the length of 5 fits, the image data of the first page is restored. Next, the number of pages is incremented, the length 182 mm of the image B5 of the second page is detected, and it is checked whether or not this is within LT. Since this also fits, the image data of the second page is also restored to the back of the first page. This operation is repeated until the image data does not fit in the LT (P27 to P32).

Since the value of LT is decremented every time whether or not image data can be accommodated in LT, the value of LT becomes 0 or less in the next third page. The content of the image to be printed on the front side is determined. Then, the transfer paper B4 is fed (P33), the restored image is transferred (printed) to the front surface (P34), and is discharged to the double-sided tray (P3).
5).

Next, the length of the transfer paper present on the double-sided tray (364 mm because it is B4) is stored again in LT (P
36). Next, the length 364 mm of the image B4 of the third page is detected, and it is checked whether or not this is within the LT. Here, since the image of the third page fits on the transfer paper existing in the double-sided tray, the image data of the third page is restored (P37 to P40).

The number of pages is incremented (P41),
The next fourth page (Y in P42) does not fit in the LT, so the transfer page is fed from the double-sided tray and the restored third page is transferred (printed) to the back side of the B4 transfer sheet and discharged. (P43-P45). Thus, the image has been transferred to the front and back of the B4 transfer sheet, and the sheet has been discharged.

Next, the fourth page is processed in the same manner as the previous time, and after the fourth page is restored, since there is no fifth page (N in P42), the fourth page is printed and the processing is terminated ( P46 to P48), and waits for the next reception.

As described above, when printing the image data, the layout of the image data is determined from a plurality of image data pages, and the transfer paper is selected and printed based on the determined layout. You can get the form.

FIG. 4 is a diagram showing a selection processing procedure for double-sided printing control. Whether to use the processing procedure of FIG. 2 or the processing procedure of FIG. 3 as a method of double-sided printing is stored in a nonvolatile memory such as NVRAM. This holds the value even when the power is turned off, and stores the previous contents after the power is turned on.

The processing procedure will be described with reference to the flowchart of FIG. A change of the duplex printing method is selected on the operation panel or the like (Y in P51). NVR the current method
The information is read from the AM and notified to the operator (P52). Here, the input of the method is urged (P53), and when the operator performs the input, the value is newly stored in the NVRAM and the processing is terminated (P5).
4) Wait for the next double-sided printing method change request.

[0023]

According to the first aspect of the present invention, when printing image data, a transfer paper corresponding to the large image data is selected in consideration of the size of the image data and the size of the image data of the next page. By printing the image on the front and back of the transfer paper, it is possible to prevent the image from being divided and becoming difficult to see.

According to the second aspect of the present invention, when the received image covers a plurality of pages, a transfer paper of a longitudinal size is selected based on the width of the image of the first page, and the size of the transfer paper is displayed in the table of the transfer paper. Print the image, and the image of the page following the printed image is
Since printing is performed on the back side when the size of the selected transfer paper fits, waste on the printing surface of the transfer paper can be eliminated.

According to the third aspect of the present invention, the above-mentioned 2
Since the operator is allowed to select one of the two-sided printing control methods, it is possible to realize an operation that the operator desires.

[Brief description of the drawings]

FIG. 1 is a block diagram of a facsimile machine.

FIG. 2 is a flowchart illustrating a first processing procedure of duplex printing control.

FIG. 3 is a flowchart illustrating a second processing procedure of duplex printing control.

FIG. 4 is a diagram illustrating a selection processing procedure of double-sided printing control.

[Explanation of symbols]

 1 CPU 2 ROM 3 RAM 4 CCU 5 DCR 6 Plotter 7 PM

Claims (3)

[Claims] A communication unit for receiving image data transmitted through a line; a restoration unit for restoring the image data received by the communication unit; a printing unit for printing the image data restored by the restoration unit; Transfer paper selecting means for selecting the transfer paper, double-sided printing means for printing image data on both sides of the transfer paper, and control means for controlling the entirety, the control means, when the received image covers a plurality of pages, A facsimile apparatus wherein a transfer paper is selected based on a larger one of images to be printed on the front and back of the transfer paper, and control is performed to print the images on the front and back of the transfer paper. 2. A communication device for receiving image data transmitted through a line, a restoration device for restoring the image data received by the communication device, a printing device for printing the image data restored by the restoration device, and a fixed form. Transfer paper selecting means for selecting the transfer paper, double-sided printing means for printing image data on both sides of the transfer paper, and control means for controlling the entirety, the control means, when the received image covers a plurality of pages, Based on the width of the image of the first page, a transfer paper of a longitudinal size is selected, an image of the size is printed on the table of the transfer paper, and an image of a page subsequent to the printed image is printed on the selected transfer paper. A facsimile apparatus which controls printing on the back side if the size of the facsimile can be accommodated. 3. A facsimile apparatus wherein a function of the control means according to claim 1 or 2 can be selected.