JPS637157B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording paper setting mechanism for an electrostatic recording facsimile apparatus, and more particularly to a recording paper setting mechanism that can reliably set the recording paper.

In general, a pre-cut type electrostatic recording facsimile device has a recording head of a single-sided controlled multi-stylus electrode in which a control electrode and a multi-needle electrode are arranged on one side, and a rotatable recording head which is arranged opposite to the recording head. Pass the recording paper between the elastic presser roller and
Therefore, the recording paper was charged with an electrostatic latent image by the recording head section, the recording paper was fed by being bitten by a sub-scanning drive roller and a sub-scanning press roller that were opposed to each other, and the recording paper was cut by a cutter unit. After that, development and fixing are performed. Roll-shaped recording paper is often used in this pre-cut type electrostatic recording facsimile apparatus. The leading edge of this recording paper passes through the cutting, developing, and fixing parts of the device, but if the leading edge is bent or wrinkled, paper jams may occur. . However, when the recording paper is set in the apparatus for replacement, the leading edge of the recording paper is likely to be bent, wrinkled, or otherwise deformed. A conventional recording paper setting mechanism is a mechanism in which only an elastic pressing roller is raised to sandwich the recording paper when setting the recording paper. Therefore, in this method, if the leading edge of the recording paper is inserted too far, the leading edge will come into contact with the sub-scanning drive roller and the sub-scanning presser roller and be deformed, and if it is not inserted sufficiently, the elastic presser roller will be lowered. There is an inconvenience that it moves and is set diagonally. If the device is driven with the recording paper set in this way, the recording paper will not run reliably and paper jams may occur as described above, which may impair the operability of the electrostatic recording facsimile device. It will lower it.

The present invention has been made in view of the actual state of the prior art, and its object is to provide a recording paper setting mechanism that can reliably set recording paper.

That is, in the present invention, when recording paper is set, the sub-scanning presser roller is automatically raised in conjunction with the operation of raising the elastic presser roller, and a sufficient gap is formed between the sub-scanning drive roller and the sub-scanning presser roller. The recording paper is set by inserting the leading end of the recording paper into the gap, and then returning the sub-scanning press roller to its original position to bite the recording paper, thereby ensuring that the recording paper is set. be.

The recording paper setting mechanism of the present invention will be explained below with reference to the drawings. FIG. 1 is an explanatory diagram showing one embodiment of the recording paper setting mechanism of the present invention, FIG. 2 is a top view of the bearing portion of the sub-scanning presser roller shown in FIG.
4 are explanatory views of the operation of the recording paper setting mechanism shown in FIG. 1 at the time of setting. In the figure, 1 is a roll of recording paper, 2 is a single-sided control type multi-stylus electrode, 3 is arranged opposite to the multi-stylus electrode 2, and a freely rotatable elastic pressing roller or sponge roller 4 is a sub-scanning drive roller, 4a 4b is a rubber portion covering the shaft 4a, and the sub-scanning drive roller 4 is rotated in the direction of arrow A by a motor (not shown) to feed the sub-scanning paper. 5 is a sub-scanning press roller facing the sub-scanning drive roller 4; 6 is a bearing that supports both ends of the sub-scanning press roller 5; 7 is an elastic body that presses the sub-scanning press roller 5 against the sub-scanning drive roller 4; As a result, the sub-scan press roller 5 rotates in accordance with the sub-scan drive roller 4. 8 is a roller unit, that is, a paper guide, 8a is a tapered portion at the end of the paper guide 8, 8b and 8c are each a part of the paper guide 8, and the paper guide 8 holds the sponge roller 3 and the sub-scanning presser roller 5. There is. 9 is a side plate of the device, and 9a is a notch in the side plate 9. Also the second
As shown in the figure, the bearing 6 of the sub-scanning press roller is fitted and fixed to the paper guide 8, and is fitted into the notch 9a of the side plate 9. against arrow B,
It can be rotated in the C direction. Further, the bearing 6 is pulled downward by the spring 7, and the notch 9a
It is designed to be able to slide up and down using it as a guide. 1
0 is a cutter unit, 10a is a fixed blade, and 10b is a rotating blade.

In the recording paper setting mechanism of the present invention having such a configuration, the recording paper 1 is charged with an electrostatic latent image between the multi-stylus electrode 2 and the sponge roller 3, and the recording paper 1 is charged with an electrostatic latent image between the multi-stylus electrode 2 and the sponge roller 3, and the recording paper 1 is charged with an electrostatic latent image between the multi-stylus electrode 2 and the sponge roller 3. 5 to the cutting section and cut by the fixed blade 10a and rotary blade 10b of the cutter unit 10,
The image is sent to a developing and fixing unit in the next step (not shown) and emerges as a recorded image.

Next, the operation of setting recording paper in this recording paper setting mechanism will be explained with reference to FIGS. 3 and 4. In FIG. 4, reference numeral 11 indicates a gap between the sub-scanning drive roller 4 and the sub-scanning pressing roller 5.
First, when the paper guide 8 is raised, the paper guide 8 moves along with the sponge roller 3 to the position shown in FIG. Rotate in the direction of arrow B. When the paper guide 8 is further rotated in the direction of the arrow B, the tapered portion 8 moves toward the shaft 4.
a, the sub-scanning press roller 5 is pushed up, the bearing 6 slides using the notch 9a of the side plate 9 as a guide, and the sub-scanning press roller 5 rises to the uppermost position and then moves downward. However, the paper guide 8 stops at the position shown in FIG. 4 where a portion 8b of the paper guide 8 rides on the shaft 4a and a portion 8c of the paper guide 8 hits the cutter unit 10. When the paper guide 8 is in the state shown in FIG. 4, the recording paper setting mechanism is configured so that a gap 11 having a sufficient distance is formed between the sub-scanning drive roller 4 and the sub-scanning pressing roller 5. There is. Note that the paper guide 8 placed in this position is tensioned by the spring 7 via the bearing 6 toward the side plate 9, that is, downward, and a portion 8b of the paper guide is in contact with the fixed member, so it is difficult to release the hand. However, the paper guide 8 does not rotate in the direction of arrow C and return to its original position, that is, it does not close. In this state, there is a gap 11 between the sub-scanning drive roller 4 and the sub-scanning presser roller 5.
A roll of recording paper 1 is set in the paper (Fig. 4).
Insert the tip of the After that, hold the insertion part of the recording paper 1 with your hand and rotate the paper guide 8 in the direction of arrow C to return it to the position shown in FIG. The paper guide 8 is then bitten, and then released and the paper guide 8 is further rotated in the direction of arrow C to return it to the position shown in FIG. In this way, the sub-scanning presser roller 5 is automatically raised in conjunction with the movement of raising the paper guide 8, and the paper guide 8 does not return to its original position even if you release your hand, so you can use both hands. Then, the leading end of the recording paper 1 can be inserted between the sub-scanning drive roller 4 and the sub-scanning press roller 5. Since the gap 11 into which the recording paper 1 is inserted is sufficiently spaced, the recording paper 1 can be easily set and can even be inserted into the cutter unit 10. Further, when rotating the paper guide 8 in the direction of arrow C to close it,
Before the sponge roller 3 returns to its original position and presses the recording paper 1 against the multi-stylus electrode 2, the recording paper 1 is caught by the sub-scanning drive roller 4 and the sub-scanning presser roller 5. It is possible to hold down the recording paper 1. Therefore, the leading edge of the recording paper 1 will not be inserted too far and be deformed by hitting the sub-scanning drive roller 4 and the sub-scanning presser roller 5, and the leading edge will not be displaced when the paper guide 8 is closed. do not have. Even if a paper jam occurs near the insertion port for the recording paper 1, opening the paper guide 8 will create a sufficient gap 11 between the sub-scanning drive roller 4 and the sub-scanning presser roller 5. It is easy to remove the matte paper.

As mentioned above, the recording paper setting mechanism of the present invention is
This has the effect of preventing errors in setting the recording paper and ensuring that the recording paper is set with a simple operation.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of the recording paper setting mechanism of the present invention, FIG. 2 is a top view of the bearing portion of the sub-scanning presser roller shown in FIG. 1, FIGS. 3 and 4. 2 is an explanatory diagram of the operation of the recording paper setting mechanism shown in FIG. 1 at the time of setting; FIG. 1...Recording paper, 2...Multi-stylus electrode,
3...Sponge roller, 4...Sub-scanning drive roller, 4a...Shaft, 4b...Rubber part, 5...
Sub-scanning press roller, 6...Bearing, 7...Spring, 8
... Paper guide, 8a ... Tapered part, 9 ... Side plate,
9a...Notch portion, 10...Cut unit,
10a... Fixed blade, 10b... Rotating blade, 11...
Gap.

Claims (1)

[Claims] 1. The leading end of a roll of recording paper is passed between a single-sided controlled multi-stylus electrode and an elastic presser roller disposed opposite to it to charge an electrostatic latent image, and the recording paper is driven in the sub-scanning direction. In a recording paper setting mechanism that sets recording paper in a pre-cut type electrostatic recording facsimile device that feeds the paper in the sub-scanning direction by being caught between a roller and a sub-scanning presser roller disposed opposite to the roller, the elastic presser roller and It has a roller unit that integrally holds the sub-scanning press roller, the bearing of the sub-scanning press roller is vertically slidably guided in a notch formed in the side plate of the facsimile machine, and the bearing is elastic. The roller unit is rotatable relative to the side plate using the sub-scanning presser roller as a fulcrum, and the elastic presser roller rotates the roller unit in the direction away from the electrode. When the roller unit is pressed, a part of the roller unit comes into contact with the sub-scanning drive roller, its shaft, or a fixed member that supports the sub-scanning drive roller and pushes up the sub-scanning presser roller, causing the sub-scanning drive roller and the sub-scanning presser roller to A recording paper setting mechanism characterized in that a gap sufficient for inserting the leading edge of the recording paper is formed between the two.