JPS595775A - Data recording method of facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent deterioration in the quality of a received picture resulting from overlap writing, white, etc., of received data on receiving paper by varying the timing of recording to receiving paper according to output intervals of a print request signal. CONSTITUTION:A reception part 1 decodes data on every line from a transmitting facsimile equipment through a circuit L to generate recording data DR, and generates the print request signal PQ every time one-line data is decoded. A control circuit 2 stores said data DR and sends a movement command signal PR to a motor driving part 3 at the same timing with the print request signal PQ. The delay time (t) from the starting of a stepping motor 5 to the movement of the receiving paper varies with intervals T of said signal PQ, so the control circuit 2 outputs the recording data DR to a recording element driving part 4 said delay time (t) after the output timing of the movement command signal PR.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data recording method for a facsimile machine in which the timing of recording on received paper is changed in accordance with the output interval of a print request signal.

In the recording section (printer 1 to section) of the facsimile machine, a print request signal is issued and 1. Timing//-One line of data is recorded in synchronization with the drive timing of the paper feeding stepping motor. Since the amount of compressed data for each line received by a facsimile machine differs greatly depending on the state of the image information of those lines, the driving timing of the stepping motor is determined as shown in FIG. 1 as an example of the driving timing pulse PM. The interval is not constant (T+ < T2), but is variable depending on the image information.

By the way, the receiving paper for recording is sent by a rubber roller or the like driven by the above-mentioned stepping motor.
As shown in the figure, there is a delay time LI, j2, . there was.

The delay time t(t+, tz) is the interval of the timing pulse PM as shown in FIG.

Conventionally, when the interval T is large, problems such as overwriting of received data on the receiving set, white spots, etc., and deterioration of image quality have occurred.

SUMMARY OF THE INVENTION An object of the present invention is to provide a data recording method for a facsimile machine that can eliminate the above-mentioned drawbacks and record data with good image quality.

In order to achieve the above object [1], the present invention avoids changing the recording timing on the receiving paper according to the output interval of the request signal to the printer 1.

Hereinafter, detailed description of the present invention will be given with reference to the accompanying drawings.
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FIG. 3 shows an example of a recording section of a facsimile machine for carrying out the method according to the invention. J3 in the same figure
The receiving unit 1 decodes the compressed data line by line sequentially transmitted from the transmitting side facsimile machine (not shown) via the line 1 to form recorded data DR in the naming, and also converts one cast number effect into one. At the end of each line, Zorin [・
It forms a request signal PQ, and these recording data D RJ5 and print request signal PQ are applied to the control circuit 2 of the recording section.

The control circuit 2 temporarily stores the recording data DR, and outputs a movement command signal PR to the motor drive section 3 constituting the receiving paper feeding mechanism at the timing when the print request signal PQ is applied.

By the way, the output interval ``'' of the print request signal PQ changes depending on the image information for each row as described above.This interval 1- is also the interval of the movement command signal PR, so it is not applicable. As the interval T changes, the delay time 1 (1, ,
12...) changes. The control circuit 2 includes a function light generator (not shown) that generates the function shown in FIG. 2 and means (V not shown) for timing the generation interval T of the print request signal PQ, A delay time t corresponding to the time value, that is, an interval T, is generated by the function generator, and the recorded data DR is temporarily stored at a timing delayed by the delay time t from the output timing of the movement command signal PR. is output to the recording element driving section 4.

For example, as shown in Figure 4(a), the interval is T.
When the print backwater (5% PQ is applied to the control circuit 2 at T1 and T2), the control circuit 2 performs the movement at the same timing as the print request signal PQ, as shown in FIG. The command signal PR is output, and as shown in FIG. The above recording data DR is output.

Therefore, after the receiving paper (shown in the figure) has been reliably fed, the recording element drive section 4 drives the recording element (for example, a legal array) 6, thereby causing overwriting or blank areas on the receiving paper. (It does not cause bulges.

In the above description, the present invention is applied to a recording unit in which the position of the recording element is fixed and the receiving paper moves. The present invention can also be applied to a recording section.

As explained above, in the present invention, the recording timing on the receiving paper is changed according to the output interval of the print water signal, so that overwriting of received data on the receiving paper, white areas, etc. may cause the received image to be distorted. Quality deterioration can be prevented.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing the delay phenomenon in the movement timing of the received paper, FIG. 2 is a graph showing the relationship between the drive interval of the paper feed motor and the movement delay time of the received paper, and FIG.
FIG. 3 is a waveform chart for explaining the operation of implementing the method according to the present invention. DESCRIPTION OF SYMBOLS 1... Receiving section, 2... Control circuit, 3... Motor drive section, 4... Recording element drive section.

Claims (1)

[Claims] In a data recording method for a facsimile device that records data in synchronization with a print request signal, at the time the print request signal is output, a time interval between that time and the previous print request signal output time is detected. , C. A f-small recording method for a facsimile machine, characterized in that the recording timing of the data is delayed by a time corresponding to the time interval.