JPS61288556A - Record scanning system in facsimile equipment - Google Patents

Abstract

PURPOSE:To attain speed recording while uneven feeding is reduced by storing a line data transferred discontinuously into a plural line memories tentatively and recording the data continuously in the lump. CONSTITUTION:A line data transferred discontinuously is supplied as an input data to a terminal 6 normally. A line memory 1 receives the input data and stores tentatively by (l) lines below one sheet of recording paper to receive control from a memory control circuit 2. When data of m-line (2<m<=l) being a prescribed threshold value is finished for input, the memory control circuit 2 controls n-line (n>=m) of data including the data finished for input to as to be outputted in a burst way at an equal time interval T even when the data is being outputted. When a recording control circuit 3 recognizes the start of transfer of n-line group of data, the circuit 3 controls a stepping motor 5 to start feeding consecutively for n-line and sends the data of n-line at an equal time interval T after a time tau to a recording head 4, where the data is subject to main scanning recording continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording scanning method for a recording device in which sub-scanning is performed intermittently in a facsimile machine.

[Conventional technology]

Conventionally, in dot line recording devices that perform this type of sub-scanning intermittently, in order to prevent uneven feeding, consideration is given to the feed response delay time due to the inertia of the sub-scanning mechanism system, and printing is started after the feed response delay time for each line. start, and finish printing before the feed stops. A recording scanning method using a feed that repeatedly starts and stops has been used.

For example, as shown in the time chart in Figure 3, this method generates 4 pulses per line as the drive timing nogle A of the stepping motor for sub-scanning, and the timer operation The case is shown in which a time T is taken as the recording period C after a two-step delay time τ determined by the pulse width generated by the pulse B. The feed curve shows the time relationship between the recording period C and the feed.

[Problem that the invention seeks to solve]

However, in the conventional recording scanning method as described above, feeding is stopped for each line.

In other words, since the feeding of the secondary line is repeated and restarted after the stoppage of the feeding of the previous line is confirmed, the noise emitted from the recording paper and structures is significant. Since it is necessary to insert the delay time τ, there is a drawback that the recording speed decreases.

[Means for solving problems]

The recording scanning method according to the present invention includes a line memory that receives data recorded in dot line format and temporarily stores 4247 minutes of the data (which is the number of lines less than one sheet of recording paper); In data input/output control, memory control controls the reading of n lines (n>m) of data in a burst manner at equal time intervals T when the input of a fixed value of m lines (2<m≦l) of data is completed. With means.

Receive notification of the start of data transfer for the n line group.

Continuously start feeding Jn lines by the sub-scanning motor, and at the equal time interval T after τ time from the feed start.
and recording control means for recording the n-line data in continuous main scanning.

[Embodiments of the invention]

Next, two embodiments of the recording scanning system according to the present invention will be described with reference to two drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention;
FIG. 2 is a time chart showing the time relationship between the recording period and the feed in the embodiment shown in FIG. In FIG. 1, l is a line memory.

2 is a memory control circuit that controls the line memory 1;

3 is a recording control circuit that controls sub-scanning feed and main-scanning recording; 4 is a recording head; and 5 is a stepping motor.

According to this example, normally line data transferred discontinuously is given to the terminal 6 as input data. The line memory 1 receives the above input data and is controlled by the memory control circuit 4 in order to temporarily store 4247 minutes, which is less than the recording sheet. Then, at the point when the line memory 1 completes inputting data of a certain value m lines (2<m≦l) which is a threshold value, data of n lines (n>m) including data whose input is completed even when data is being output The memory control circuit 2 outputs the data in bursts at equal time intervals T.

The recording control circuit 3 controls the stepping motor 5 when it learns of the start of data transfer for the n line group.

As shown in the driving nozzles in Figure 2A, feed is started continuously for n lines, and after τ time after the feed start (Figure 2B), n lines of data are sent to the recording head at equal time intervals T. 4 to perform continuous main scanning recording. Note that D in FIG. 2 shows a feed curve, and the correspondence of the recording period at this time can be seen in FIG.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, line data that is transferred discontinuously is temporarily stored in a plurality of line memories, and then the plurality of lines are continuously recorded at the same time. In addition to making it possible to record speeds with significantly reduced shimura, it also significantly reduces noise, which has great effects in improving performance.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention;
FIG. 2 is a time chart showing the time relationship between the recording period and the feed in the embodiment of FIG. 1, and FIG. 3 is a time chart showing an example of the time relationship between the recording period and the feed in the conventional recording scanning method. be. In the figure, 1 is a line memory, 2 is a memory control circuit,
3 is a recording control circuit, 4 is a recording head, 5 is a stepping motor, 6 is a data input terminal, and 7 is a timing signal input terminal. Invitation 1 Figure 2 Figure 3 EF! while

Claims (1)

[Claims] 1. A line memory that receives data recorded in dot line format and temporarily stores the data for lines (the number of lines is less than one sheet of recording paper), and input/output of data in the line memory. During control, a constant value m line (2
When inputting data for <m≦l) is completed, line n (
n≧m) data in a burst manner at equal time intervals T; and upon receiving notification of the start of data transfer of the n line group, a sub-scanning motor starts feeding n lines continuously; A recording scanning method for a facsimile apparatus, further comprising a recording control means for recording the data of the n lines in continuous main scanning at the equal time interval T after a time .tau. from the start of the feed.