JPH0732438B2 - Recording paper transport device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording paper conveyance device, and more particularly to a recording paper conveyance device used in a facsimile machine for preventing paper jam of recording paper.

[Prior Art] FIG. 4 is a diagram showing a main part of a facsimile machine using a conventional carrier device. In the figure, (1) is a recording paper on which the contents of electric transmission are recorded. (2) is this recording paper (1)
The recording paper (1) is advanced or retracted or stopped by a paper feed roller that conveys. Reference numeral (3) is a recording head for recording the content of electric transmission on the recording paper (1) passing between the recording paper and the paper feed roller (2). A recording paper guide (4) guides the recording paper (1) to the paper feed roller (2).

(5) is a recording paper roll around which the recording paper (1) is wound. A recording paper cutter (6) passes through the recording head (3) and cuts the last page after the recording is completed.

In the conventional facsimile apparatus, the recording paper (1) is conveyed by the paper feed roller (2) when recording the content of electric transmission, and after a series of recording is completed, the end of the recording paper (1) is moved to the position of the cutter (6). After proceeding, the recording paper (1) was cut. Then, the recording paper (1) is reversely rotated by the paper feed roller (2) (fourth
The leading edge (1a) of the recording paper is moved back until it reaches the position of the recording head (3), and the next recording is performed from the leading edge (1a) of the recording paper (1).

[Problems to be Solved by the Invention] Since the recording paper is conveyed in the conventional facsimile apparatus as described above, the leading end (1a) of the recording paper (1) is moved to the paper feed roller (2) for a long time. When pressed, the leading edge (1a) of the recording paper sticks to the paper feed roller (2) due to humidity and temperature, and at the start of the next recording, the recording paper (1) winds around the paper feed roller (2). There was a problem of causing a jam.

The present invention has been made in order to eliminate such a problem, and an object of the present invention is to obtain a recording paper conveying apparatus capable of recording from the leading end of the recording paper without paper jam at the start of the next recording.

[Means for Solving the Problems] In order to achieve the above object in the present invention, a guide is provided between the recording paper roll and the paper feed roller on the side of the recording paper surface in contact with the roller. When the recording paper sticks to the paper feed roller when the paper feed roller side end is in the reverse direction, the recording paper is separated from the paper feed roller,
It is extended to the position where it is guided on the guide.

[Operation] According to the present invention, when the leading edge of the recording sheet is stopped between the recording head and the cutter at the end of recording, and when the leading edge of the recording sheet is moved back to the recording head at the beginning of the next recording, the paper feed roller on the recording sheet surface is used. The end of the guide on the side of the contact surface on the paper feed roller side separates the recording paper from the paper feed roller and guides it onto the guide, peeling off the part attached to the paper feed roller from the roller. Paper jams can be prevented.

[Embodiment] FIGS. 1 to 3 show an embodiment according to the present invention. A recording paper (1), a recording head (3), a recording paper roll (5), a recording paper cutter (6). Is exactly the same as the above conventional device. A paper feed roller (7) stops the leading edge (1a) of the recording paper (1) between the recording head (3) and the cutter (6) at the end of recording, and the recording paper leading edge (1a) at the time of restarting recording. ) Is retracted to the recording head (3). A guide (8) is provided between the paper feed roller (7) and the roll (5), and the guide (8) is on the side of the recording paper surface that contacts the paper feed roller, and the recording paper (1 ), The recording paper (1) is guided from the roll (5) to the roll (7). The end (8a) of the guide on the roller (7) side is the recording paper (1) when recording is restarted.
When the paper is fed in the reverse direction, the contact portion (1b) of the recording paper (1) that is in contact with the paper feed roller (7) is peeled off, and the guide (8)
It has been extended until you guide you to the top.

According to the facsimile apparatus having the above structure, after the recording is completed, the leading edge (1a) of the recording paper is stopped in front of the recording head (3) as shown in FIG.

If left as it is for a long time, the recording paper (1) is pressed against the paper feed roller (7) by the recording head (3). Therefore, depending on the humidity and temperature, as shown in FIG. The paper (1) sticks to the paper feed roller (7) at the recording head (3).

At the start of the next recording, in order to start recording from the leading edge of the recording paper, the paper feed roller (7) is reversely rotated in the direction shown in FIG. 3 and the recording paper (1) is moved back. The part adhered to the contact part (1b) is peeled off from the paper feed roller by the guide end part (8a) extending near the paper feed roller (7) and guided onto the guide (1). To be done.

When the leading edge (1a) of the recording paper reaches the position of the recording head (3), the reverse rotation is stopped and recording is started.

In the above embodiment, the end portion (8a) of the recording paper guide (8)
Is shown near the paper feed roller (7). If the waist strength of the recording paper is larger than the peeling force of the part where the recording paper is stuck to the paper feed roller (7), the recording paper guide It may be further separated from the end portion (8a) of (8) and the paper feed roller (7).

Further, although the facsimile apparatus has been described, the present invention can be applied to other apparatuses.

As described above, according to the present invention, the leading edge of the recording paper is stopped in front of the recording head, and at the start of recording, the paper feed roller is reversely rotated to the position of the recording head, so that the recording paper In a recording paper transport device that enables recording from the leading edge of the paper, between the paper feed roller and the recording paper roll, the end of the guide provided on the side of the recording paper surface where the recording paper roller is located on the paper feed roller side. When the recording paper is fed in the reverse direction by the section, the recording paper is released from the paper feed roller and guided on the guide, so that the recording paper does not stick to the paper feed roller and cause a paper jam. There is an effect that a paper conveyance device can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a facsimile apparatus using an embodiment of the present invention, FIG. 2 is a view when recording paper is stuck to a paper feed roller, and FIG. FIG. 4 is an explanatory view showing the relationship between the recording paper, the paper feed roller, and the recording paper head of the conventional facsimile apparatus when the recording is performed. In the figure, (1) is a recording paper, (2) and (7) are paper feed rollers, (3) is a recording head, (4) and (8) are recording paper guides, (5) is a recording paper roll, and (6) ) Is a recording paper cutter. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A recording paper wound around a recording paper roll, a paper feed roller for conveying the recording paper, and a paper feed roller for the recording paper fed in the forward direction from the recording paper roll to the paper feed roller. A recording head for recording the content of electric transmission between the recording head and a cutter for cutting the recording paper after the recording is completed, and the leading end of the recording paper cut by the cutter at the end of recording is stopped between the recording head and the cutter. Then, at the start of recording, in the recording paper conveyance device that reverses the leading end of the recording paper to the recording head by reversing the paper feed, between the recording paper roll and the paper feed roller, A guide for guiding the recording paper from the recording paper roll to the paper feed roller is provided on the side of the recording paper surface that contacts the roller, and when the paper feed is in the forward direction, the end of the guide on the paper feed roller side is in the reverse direction. Write when feeding paper A recording paper conveyance device, wherein when a recording paper is stuck to a paper feed roller, the recording paper is extended from a position where the recording paper is released from the paper feed roller and guided on a guide.