JPH04366660A - Ppc facsimile equipment - Google Patents

Abstract

PURPOSE:To perform a lap-printing by providing a memory of a lap-printing line number. CONSTITUTION:A title device is provided with a high-speed decoder part 2 capable of decoding coded image data at a high speed; a lap-line memory part 4 for accumulating only a lap-printing line number; and a lap-line memory management part 5 for controlling the lap-line memory part 4.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to PPC (Plain P
The present invention relates to a PPC facsimile device, and particularly to a PPC facsimile device for realizing a page memoryless PPC facsimile recording system that takes duplicate printing into consideration.

0002

2. Description of the Related Art An example of a conventional PPC facsimile device is shown in FIG. 2 and will be described. As shown in FIG. 2, the recording method of the conventional PPC facsimile machine that takes into consideration duplicate printing is an image memory section 1 that stores encoded image data.
1, a decoder section 12 that inputs image data from the image memory section 11, decodes it, and outputs raw image data, and a page memory section 13 that stores the raw data page by page (1 to 2 pages). and an image processing section 14 that performs image processing such as smoothing and thinning for output to the PPC printer 16. 15 is a PPC interface section.

[0003] When performing a duplicate printing operation, the raw data in the page memory section 13 is output for one page, and the image processing section 14 outputs the raw data for one page.
and is outputted by the PPC printer 16 via the PPC interface section 15. After that, PPC printer 16
Then, the page memory unit 13 again outputs the image data of the number of lines of overlap printing from the last line of the output first page data, and then outputs the image data of the second page, which is used as the image data of the second page. The image is then sent to the image processing section 14 and output to the PPC printer 16, resulting in duplicate printing.

0004

[Problems to be Solved by the Invention] In this conventional recording method that takes duplicate printing into consideration in PPC facsimile machines, the processing speed of the decoder section is low, and since PPC printers print at a constant speed, the decoder section The raw image data outputted through the image processing section had to be stored page by page in memory and then output to the PPC printer. Therefore, there is a problem in that a memory with a large capacity that can store image data in units of pages is required.

[0005]

[Means for Solving the Problems] A PPC facsimile apparatus of the present invention includes decoding means for decoding encoded image data from an image memory section by a high-speed decoder section, and performs image processing from the high-speed decoder section. In order to perform redundant printing of raw image data outputted through a PPC printer using a PPC printer, the printer is provided with a line memory for the number of redundant print lines, and a management means for managing this line memory.

[0006]

[Operation] In the present invention, image data is managed line by line by providing a high-speed decoder.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an embodiment of a PPC facsimile apparatus according to the present invention. In FIG. 1, 1 is an image memory section, 2 is a high-speed decoding section that can decode encoded image data at high speed,
This high-speed decoding section 2 constitutes a decoding means for decoding encoded image data from the image memory section 1. Reference numeral 3 denotes an image processing unit which receives the output of the high-speed decoder unit 2, 4 an overlap line memory unit which is a memory that stores only the number of overlap print lines, 5 an overlap line memory management unit, 6 a PPC interface unit, and 7 is a PPC printer.

[0008] Then, the high-speed decoding unit 2 and the image processing unit 3
In order to perform redundant printing of raw image data outputted via the PPC printer 7, a line memory for the number of redundant print lines (duplicate line memory section 4) and this line memory (
A management means (overlapping line memory management section 5) for managing the overlapping line memory section 4) is provided.

Next, the operation of the embodiment shown in FIG. 1 will be explained. First, raw image data outputted from a high-speed decoder section 2 that decodes encoded image data outputted from an image memory section 1 at high speed is inputted to an overlap line memory management section 5 via an image processing section 3. do. The image data output by the high-speed decoder section 2 can satisfy the throughput with the PPC printer 7 side. The overlapping line memory management section 5 manages the image data in the overlapping line memory section 4 on a line-by-line basis. Next, the image data is stored line by line in the overlapping line memory section 4, and when the number of overlapping print lines has been accumulated, the next image data is stored on top of the first accumulated line of image data. At that time, the first line of image data accumulated has already been output to the PPC printer 7 by the overlapping line memory management section 5. Repeat this process to P the image data for one page.
Output to PC printer 7.

When outputting the second page of the PPC printer 7, the PPC printer 7 starts with the oldest image data of the image data stored in the overlap line memory section 4.
Duplicate printing is performed by inputting the second page of image data from the high-speed decoder section 2 while outputting the image data.

[0011]

Effects of the Invention As explained above, the present invention is equipped with a high-speed decoder and can manage image data in units of lines, so when duplicate printing is taken into account, memory for each page can be saved. There is no need to have memory for the number of duplicate print lines, and it has the effect of making duplicate print possible.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a PPC facsimile apparatus according to the present invention.

FIG. 2 is a block diagram showing an example of a conventional PPC facsimile device.

[Explanation of symbols]

1 Image memory section 2 High-speed decoder section 3 Image processing section 4 Duplicate line memory section 5 Duplicate line memory management section 6 PPC interface section 7 PPC printer

Claims (1)

[Claims] 1. A decoding means for decoding encoded image data from an image memory section by a high-speed decoder section, and a decoding means for decoding encoded image data from an image memory section, and raw image data outputted from the high-speed decoder section via an image processing section. In order to perform duplicate printing with a PPC printer, a line memory for the number of duplicate print lines,
A PPC facsimile apparatus comprising: management means for managing this line memory.