JPH0155625B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording paper feed control system used in facsimile machines, copying machines, and the like.

Generally, facsimile machines, copying machines, and the like are provided with a recording paper feeding device that feeds and transports a roll of recording paper.

FIG. 1A is a side view for explaining a conventional control system for the above-mentioned recording paper feeding device, and particularly shows the feeding device of a facsimile machine.

The recording paper 2 pulled out from the recording paper roll 1 passes through a paper guide (not shown) and is held between a pair of recording paper drive rollers 3 and 4 (hereinafter simply referred to as drive rollers). The paper passes through a paper guide (not shown) and is transferred to a recording section 7 consisting of a presser roller 5 and a recording head section 6. The recording head section 6 is constructed by arranging a large number of recording electrodes for electrostatic recording or thermal recording, for example, in parallel in the axial direction of the presser roller 5.

Here, the recording section 7 presses and holds the recording paper 2 between the presser roller 5 and the recording head section 6, and the recording paper 2 recorded by the recording head section 6 is sequentially moved in front of the presser roller 5 by the presser roller 5 (arrow). A direction). According to such a conventional recording paper feed control system, the leading edge 2a of the recording paper 2 always remains pressed between the presser roller 5 and the recording head section 6 until the next recording operation is performed. Therefore, when recording was restarted and the presser roller 5 was rotated, the recording paper 2 sometimes wound around the presser roller 5 while being in pressure contact with the presser roller 5, as shown in FIG. 1B. In particular, the outer layer of the presser roller 5 is made of an elastic material or the like to ensure tight pressure contact between the recording paper 2 and the recording head section 6. Therefore, it cannot be left for more than several hours in high humidity or for a long time even at room temperature and humidity. If this is done, the tendency of the recording paper 2 to come into pressure contact with the presser roller 5 becomes even more pronounced.

Therefore, if recording continues in this state, the recording paper 2 will be wrapped around the presser roller 5 and this will cause a jam (paper jam), making it impossible to record. The drawback was that it took a lot of time to set the position.

The present invention has been made in view of the above-mentioned drawbacks of the conventional recording paper feed control system.
It is an object of the present invention to provide a recording paper feed control method that reduces the occurrence of such problems as much as possible.

In order to achieve this object, the present invention uses a paper feed controller that controls the drive roller to catch a transmission start signal from a facsimile transmitter, drive the drive roller, and press the leading edge of the recording paper to a predetermined position between the roller and the recording head. At the same time, the drive roller is driven by capturing the transmission end signal from the facsimile transmitter, and the leading edge of the recording paper is set at a predetermined position between the drive roller and the presser roller. This is a recording paper feed control system in which the recording paper is not held between the presser roller of the recording section and the recording head section.

An embodiment of the recording paper feed control method according to the present invention will be described below with reference to the accompanying drawings.

FIGS. 2a, b, c, and d are side views showing a recording paper feed control system according to the present invention, and the same parts as in FIG. 1 are designated by the same reference numerals.

In FIGS. 2a, b, c, and d, a roller drive mechanism 10 rotates the drive rollers 3 and 4, and is composed of, for example, a motor, gears, or a belt. Its operation is controlled by

The paper feed controller 11 captures a transmission start signal and a transmission end signal among the transmission signals from the facsimile transmission side and sends a predetermined operation signal to the roller drive mechanism 10 to control the recording paper feed. Its operation will be explained in detail. A cutter mechanism 12 for cutting off the recorded portion of the recording paper 2 is disposed at a predetermined position, for example, between the drive rollers 3 and 4 and the presser roller 5.

FIG. 2a shows a state in which the recording head section 6 has finished recording the transmitted information on the recording paper 2, and the recording section 2b of the recording paper 2 (the section of the recording paper in the direction of arrow A from the recording head section 6). When recording is completed, the paper is cut by the cutter mechanism 12 that operates upon detecting the end of the recording signal, and is transferred and discharged to a recording paper mounting table (not shown) by a feed roller (not shown) arranged in the direction of arrow A. be done.

FIG. 2b shows the recorded portion 2b cut by the cutter mechanism 12 as described above.
(The portion of the recording paper that has been cut and transferred is shown by a dotted line.) After that, when a transmission end signal from the facsimile transmitter is input, the paper feed controller 11 detects the end signal, and the drive roller 3, 4 to transport the leading edge 2a of the recording paper 2 in the direction of arrow A, and
As shown in FIG.
The facsimile machine is stopped at a predetermined position (a predetermined position between the drive rollers 3 and 4 and the presser roller 5) before the facsimile transmission signal is received, and this state is maintained until the next facsimile transmission signal is received, thereby entering a standby state.

When the next transmission signal from the facsimile transmitter is received in the standby state shown in FIG. 2c, the paper feed controller 1
1 captures the transmission start signal of the transmission signal and drives the drive rollers 3 and 4 to move the leading edge 2a of the recording paper 2 to the second
As shown in Figure d, the presser roller 5 and the recording head section 6
Then, when the recording signal (message signal) of the transmitted signal is received, the transmitted information is recorded on the recording paper 2 by the recording head section 6, and when the recording is completed, the information shown in FIG. The recording end state shown in FIG. 1 is reached, and the above-described operations are sequentially repeated thereafter.

According to the recording paper feed control system as described above, the recording paper 2 is not held and pressed between the presser roller 5 and the recording head 6 except when the recording head section 6 is recording transmission information.

In the above embodiment, the cutter mechanism 12 that cuts the recording end portion of the recording paper 2 is driven by the drive rollers 3 and 4.
Although the case has been described in which the cutter mechanism 12 is disposed at a predetermined position between the presser roller 5 and the presser roller 5, the present invention is not limited to the above embodiment. A direction). In this case, the paper feed controller 11 receives the transmission end signal from the facsimile transmitter after the operation of the cutting mechanism 12 is completed, reverses the driving rollers 3 and 4, and moves the leading edge 2a of the recording paper 2 as shown in FIG. 2c. Once the recording paper 2 is moved to a predetermined position between the drive rollers 3, 4 and the presser roller 5 and stopped, the subsequent operation of the recording paper 2 is the same as in the above embodiment.

Further, in the above embodiment, the position of the cutter mechanism 12 disposed between the drive rollers 3, 4 and the presser roller 5 is made to coincide with the stop position of the leading edge 2a of the recording paper 2 shown in FIG. 2c. Also good. In this case, the recording paper 2 is stopped at the cut position without being transferred upon receiving the transmission end signal, and the transmission start signal is detected and the presser roller 5 and the recording head section 6 are connected to each other as shown in FIG. In between, the leading edge 2a of the recording paper 2
All you have to do is transfer it.

As explained above, in the recording paper feed control method of the present invention, the rolled recording paper in the standby state before recording is not pressed and held between the presser roller and the recording head section that constitute the recording section, and therefore a new method is adopted. During recording, the recording paper does not wrap around the presser roller and cause a paper jam (paper jam), and as a result, the roll recording paper is transported smoothly and the smooth operation of the recording device that uses the roll recording paper is maintained. Accordingly, it is possible to provide a recording apparatus that uses roll recording paper with fewer failures.

[Brief explanation of drawings]

Figures 1a and 1b are side views showing a conventional recording paper feed control system and diagrams showing the wrapping state of the recording paper, and Figures 2a, b, c, and d are diagrams showing the recording paper feed control system according to the present invention. 3rd side view showing a series of operations of
The figure is a side view showing another embodiment. 1... Recording paper roll, 2... Recording paper, 3, 4...
...Recording paper drive roller, 5...Press roller, 6...
Recording head unit, 7...Recording unit, 10...Roller drive mechanism, 11...Paper feed controller, 12...Cutter mechanism.

Claims (1)

[Scope of Claims] 1. A recording paper feed control system in which a roll of recording paper is fed and transported to a recording section consisting of a presser roller and a recording head section by a drive roller disposed upstream of the recording section, comprising: A paper feed controller that controls a roller positions the leading edge of the roll recording paper in a standby state before recording by the recording head unit between the drive roller and the recording unit that are spaced from the recording unit; A recording paper feeding control method characterized in that the roll recording paper in a standby state before recording is not held between a presser roller of the recording section and a recording head section.