JPS6215867B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording paper feeding method in a recording apparatus that is used while cutting a long recording paper wound in a roll, for example.

For example, in a facsimile receiver, a copying machine, or a similar recording device, a recording paper wound into a roll is cut by a cutter before or after recording.

A recording paper feeding system in such an apparatus will be explained with reference to FIG. In the figure, numeral 10 is a recording paper, for example, one drawn out from a roll. This recording paper 10 is
It is pressed by a feed roller 11 and a recording head 12, and is transported in the direction of arrow A by the rotation of the feed roller 11, and a desired image is formed by the recording head 12, after which the cutter 1
It is cut at 3.

To explain these in more detail, for example, in response to a recording start signal, the feed roller 11 is rotated to transport the recording paper 10, and the recording head 12 performs the required recording on the recording paper 10. Then, recording is stopped when a break, such as one page, is reached. However, the recording paper 10 continues to be fed until the last recorded portion passes through the cutting edge 14 of the cutter 13 to form the required blank area, and then the rotation of the feed roller 11 is stopped and the recording paper 10 is
0 is stopped, and the cutter 13 is operated to cut the recording paper 10.

By the way, the cutter 13 generally has a fixed blade 15 and a movable blade 16, and the movable blade 16 rotates around its axis B to cut the recording paper 10. Therefore, feed roller 1
Recording paper 1 is transported between guides 17 by
The 0 end must pass through the gap between the fixed blade 15 and the movable blade 16 each time it is cut. However, when recording and cutting are performed continuously, the ends of the recording paper 10 are cut by a fixed blade 15 and a movable blade 16.
However, if you restart recording after a long time has passed after cutting, the edges of the recording paper 10 will curl due to the influence of humidity, and the recording paper If the end of the blade 10 gets caught on the peripheral edge of the movable blade 16, it cannot pass through the gap between the fixed blade 15 and the movable blade 16, resulting in a paper jam. Particularly when the recording paper 10 is an electrostatic recording paper or a heat-sensitive recording paper, in which the recording layer and the base paper layer are made of different materials, there is a drawback that the recording paper 10 tends to curl under the influence of humidity.

This invention was made in view of the above points, and it is necessary for the end of the recording paper to pass through the cutting edge of the cutter immediately after the cutter returns to the cutting standby state after the recording paper is cut. The present invention provides a recording paper feeding method that eliminates the conventional drawbacks by transporting the recording paper by a certain distance.

An embodiment to which the present invention is applied shown in FIG. 2 will be described below. The same reference numerals will be used for the same components as those of the conventional one shown in FIG. 1, and some explanations thereof will be omitted. The figure shows the state before the start of recording, that is, the end of the recording paper 10 has stopped after passing the cutting edge 14 of the cutter 13.

That is, in response to a recording start signal or the like, the feed roller 11 is rotated to transport the recording paper 10 and the recording head 12 performs the required recording. and,
After one section of recording is completed, the last recorded portion passes through the cutting edge 14 of the cutter 13, and when a required blank space is formed between the last recorded portion and the cutting edge 14, the feed roller 11 rotates. is stopped, and then the cutter 13 is operated to cut the recording paper 10. Up to this point, it is the same as the conventional feeding method, but the recording paper 1
When the movable blade 16 that cut the paper has returned to its pre-cutting state, the feed roller 11 is rotated again for a very short time so that the end of the recording paper 10 on the entrance side of the cutter 13 is connected to the fixed blade 15 and the movable blade 16. The cutting blade 14 is transferred through the gap therebetween so as to protrude from the cutting edge 14 by a small distance α.

Therefore, even if recording is restarted after being stopped for a long time in the state shown in FIG. 2, the edge of the recording paper 10 passes through the gap between the fixed blade 15 and the movable blade 16, Even if the end of the blade 10 is deformed, such as curling, it will not get caught on the movable blade 16 as in the conventional case.

In the above embodiment, the recording head 12 is disposed opposite to the feed roller 11, but the recording head 12 is disposed at another position and the recording paper 10 is transferred between the feed roller 11 and the recording head 12 opposite to the feed roller 11. This may be done by providing an auxiliary roller.

As is clear from the above description, according to the recording paper feeding system of the present invention, it is possible to eliminate the occurrence of the recording paper being caught at the cutter.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the main parts of a recording apparatus to which a conventional recording paper feeding system is applied, and FIG. 2 is a schematic side view of the main parts of a recording apparatus to which the recording paper feeding system of the present invention is applied. . 11...Feed roller, 12...Recording head, 1
3... cutter, 14... cutting blade section, 15... fixed blade, 16... movable blade.

Claims (1)

[Claims] 1. The recording paper, the recording layer and the base paper layer of which are made of different materials, is transported by a feeding mechanism between the fixed blade located above and the movable blade located below among the blades of the cutter, and the cutting process is performed by the cutter. In the recording paper feeding method in which the transportation of the recording paper is stopped when the feeding mechanism is stopped, the transportation of the recording paper is stopped and the recording paper is cut by the cutter, and then the cutter is in a cutting standby state. Immediately after returning to the position, the recording paper is transported by the feeding mechanism by a short distance such that the end of the recording paper on the inlet side of the cutter passes through the cutting edge of the cutter, and the cutting edge of the movable blade moves A recording paper feeding method characterized by supporting the recording paper.