JP2541101B2 - Facsimile machine recording method - Google Patents

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 recording system for a facsimile machine.

[0002]

2. Description of the Related Art Having a serial printing type recording section,
As shown in FIG. 3, in a facsimile machine using sheet paper as a recording paper, which is capable of overlapping recording, a buffer memory 1 is provided between a decoding section 13 and a recording section 15.
4 (see JP-A-63-59171). The buffer memory 14 has a memory capacity of about one page, and at the time of divided recording, the data before the number of lines to be redundantly recorded is sent to the recording unit 15 as image data of the next page. In the figure, 11 is a receiving unit and 12 is a receiving buffer.

[0003]

In the duplication recording in the conventional facsimile apparatus, the image data of the duplication portion is recorded at the beginning of the next page, so that it must be sent again to the recording unit. Further, due to the duplicate recording, there is a problem that the control of the buffer memory becomes complicated.

It is an object of the present invention to provide a recording system for a facsimile machine which solves the above problems.

[0005]

SUMMARY OF THE INVENTION The present invention is a facsimile apparatus having a serial printing type recording section and using sheet paper as a recording sheet, and is provided with two buffer memories between a decoding section and a print head. Normally, writing and reading are alternately performed to these buffer memories, but at the time of duplication recording, duplication recording is performed by re-reading the final data of the previous page.

[0006]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a receiving portion and a recording portion (serial printer portion) of a facsimile apparatus according to an embodiment of the present invention. The reception part has a reception unit 1, a reception buffer 2, a decoding unit 3, and a control unit 10. The recording part has a switch 4, buffer memories 5 and 6, a switch 8, a print head 9, and a recording control unit 7.

The receiving unit 1 is connected to a line and receives facsimile data. Received data is received buffer 2
Is temporarily stored in. The decoding unit 3 uses the reception buffer 2
The received data of 1 is sequentially decoded, and the decoded image signal is accumulated in the buffer memory 5 or the buffer memory 6 via the switch 4. The image data in the buffer memory 5 or 6 is sent to the print head 9 via the switch 8 and recorded therein.

In the buffer memory 5 and the buffer memory 6, writing and reading of image data are alternately performed by the recording control unit 7, the buffer in which the image data is written by the switch 4 is connected to the decoding unit 3, and the switch 8 is used. A buffer for reading is connected to the print head 9.

When the data of one page received from the line cannot fit on one page of the recording paper, the control unit 10 instructs the recording control unit 7 to divide the recording paper into a plurality of pages for recording. At this time, after the recording of the previous page is completed between the recording pages, the recording control unit 7 again reads and records the final data of the previous page at the beginning of the next page without switching the switches 4 and 8.

FIG. 2 is a timing chart showing the operation of the serial printer unit before and after the last data of the nth page is recorded at the beginning of the (n + 1) th page. Figure 2
The duplication recording operation will be described in detail with reference to FIG.

Image data "a", "b",
It is assumed that "c", "d", "e", "f", "g" ... Are output. When the switch 4 is connected to the 4a side, the data “a”, “c”,
When "e" is written and connected to the 4b side, data "b" and "d" are written in the buffer memory 6. When the switch 8 is connected to the 8a side, the data "a" and "c" are transferred from the buffer memory 5 to the head 9,
When connected to the 8b side, data "b" and "d" are transferred from the buffer memory 6 to the head 9. The final data of the nth page is "d".

When an instruction to turn on duplicate recording is given from the control unit 10 at the head of the (n + 1) th page, the recording control unit 7 switches the switch 4,
The final data "d" is read from the buffer memory 6 without switching the switch 8 and transferred to the print head 9 for recording.

In this way, the duplicate recording of the data "d" is performed.

[0015]

As described above, according to the present invention, when two buffer memories for serial printing are used and divided recording is performed, the image data of the last line is read from the buffer memory again at the beginning of the next page. Since the duplicate recording can be performed by issuing the data, there is an effect that complicated buffer management is not required and the duplicate recording can be performed without retransmitting the data to the recording unit.

[Brief description of drawings]

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

FIG. 2 is a timing chart explaining the operation of the embodiment of the present invention.

FIG. 3 is a block diagram of a conventional facsimile apparatus capable of double recording.

[Explanation of symbols]

 3 Decoding section 4, 8 Switch 5, 6 Buffer memory 7 Recording control section 9 Print head 10 Control section

Claims (2)

(57) [Claims] 1. A facsimile apparatus having a serial printing type recording section and using sheet paper as a recording sheet, comprising two buffer memories between a decoding section and a print head, and these buffer memories are normally alternately arranged. The recording method of the facsimile apparatus is characterized in that the data is written to and read from, but at the time of duplicate recording, the final data of the previous page is read again to perform duplicate recording. 2. A facsimile device having a serial printing type recording unit and using sheet paper as recording paper, a decoding unit for decoding received image data, two buffer memories, the decoding unit, and the decoding unit. A first switch provided between the two buffer memories and alternately writing the data from the decoding unit into the buffer memory; a printhead; and a gap between the two buffer memories and the printhead. A second switch for alternately reading the data of the two buffer memories to the print head, and at the time of overlapping recording, without switching the first and second switches, A recording method for a facsimile apparatus, which is characterized in that the final data of a page is read again to perform duplicate recording.