JPH04121160U - Image forming device - Google Patents

Abstract

(57) [Summary] [Purpose] To easily separate roll paper of an image forming apparatus. [Structure] An optical sensor 5 that detects perforation detection marks formed at predetermined intervals on the roll paper R, a feed roller 3 that feeds pieces of paper on the roll paper R, and a feed roller that detects perforation detection marks formed at predetermined intervals on the roll paper R; 3 and a control means for driving and controlling the perforations at predetermined positions. Thereby, when the detection means detects the perforation detection mark, the control means drives and controls the paper feeding means to stop the perforation at a predetermined position.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an image forming apparatus using roll paper.

0002

[Conventional technology]

Image forming devices use roll paper or cut paper as recording paper to record received signals, etc. is used. Among these, in the case of roll paper, high-end machines have an automatic cover. It is equipped with a cutter mechanism that cuts the roll paper into a predetermined size. Ru. Small machines and low-priced machines are not equipped with such an auto cutter mechanism. Therefore, the rolled paper pieces that are fed out are cut into a fixed blade ( edge) and cut by hand.

0003

[Problem that the idea aims to solve]

However, when cutting roll paper by hand, it may not be possible to cut it properly. There was a problem. An object of the present invention is to provide an image forming apparatus that can easily separate roll paper. It is in.

0004

[Means to solve the problem]

This invention detects perforation detection marks formed at predetermined intervals on roll paper. a detection means for sending pieces of rolled paper; Based on this, the paper feeding means is driven and controlled, and the perforation of the roll paper is stopped at a predetermined position. The gist of the invention is that it is equipped with a control means.

[0005]

[Effect]

In the present invention configured as described above, the detection means of the image forming apparatus is a roll paper sewing machine. When the eye detection mark is detected, the control means drives and controls the paper feeding means to feed the roll paper. The perforation corresponds to the fixed blade and stops.

[0006]

【Example】

1 to 3 show examples in which the present invention is embodied in an image forming apparatus using roll paper. Explain according to the following. As shown in FIG. 1, the roll paper R is rotatably arranged within the frame 1 of the image forming apparatus. It is. This piece of paper roll R is guided to the right end 1a of the frame 1 in FIG. It is. At this end 1a, a fixing member is fixed that can cut the roll paper R in its width direction. A blade 2 is provided.

[0007] Near the end 1a in the frame 1, a paper feeding means for feeding the pieces of the roll paper R is provided. A pair of feed rollers 3 are arranged at a predetermined interval in the feed direction, and a driving roller (not shown) is provided. Rotationally driven by a motor and transmission mechanism. Above each feed roller 3 is a feed roller. A driven roller 4 that constantly presses the roller 3 to convey the roll paper R is rotatably arranged. It is.

[0008] Further, an optical sensor 5 as a detection means is provided between the feed rollers 3. Ru. This optical sensor 5 is a reflective sensor, and is placed on the perforation 6 of the roll paper R shown in FIG. Provided at a position corresponding to the detection hole 6a as a transparent perforation detection mark, The detection hole 6a can be detected as the roll paper R is fed. Furthermore, a thermal head 7 serving as a recording device is located closer to the end portion 1a than the optical sensor 5. are arranged in parallel and driven to scan in the width direction of the roll paper R by a scanning mechanism (not shown).

[0009] As shown in FIG. 3, the optical sensor 5 is operated by a CPU 8 (central processing unit) as a control means. It is connected to the drive circuit 9 of the drive motor that drives the feed roller 3 via the Ru. Then, the feed roller 3 is driven based on the detection signal from the detection hole 6a of the optical sensor 5. It corresponds to the fixed blade 2 in order to control and position the perforation 6 of the roll paper R at a predetermined position. It is designed to stop.

0010 Note that the CPU 8 receives received signals demodulated from a transmission section (not shown) of the image forming apparatus. In order to record the number, the drive circuit 9 of the drive motor that drives the feed roller 3 is controlled. It is also now possible to do so. Next, the operation of the image forming apparatus configured as described above will be explained. When recording the received signal on the roll paper R, the CPU 8 starts driving upon receiving the received signal. The circuit 9 is controlled to rotate the feed roller 3. Then, feed roller 3 becomes driven The roll paper R is conveyed in cooperation with the rollers 4. At the same time, CPU8 is thermal The head 7 is scan-driven to start printing characters and the like. Next, one page of printing is finished. , when the optical sensor 5 detects the detection hole 6a of the roll paper R, the CPU 8 detects the feed roller 3. is rotated at increased speed, and the distance L between the position of the optical sensor 5 and the fixed blade 2 (see Fig. 1) is increased. The roll paper R is conveyed and the perforations 6 are stopped in correspondence with the fixed blade 2.

[0011] Note that if the reception signal continues to be received, the CPU 8 further sends the feed roller 3 is driven to rotate, and the thermal head 7 is driven to scan to print characters, etc. Ru. Then, the CPU 8 finishes reading the received signal and checks the detection hole 6a of the roll paper R. When the optical sensor 5 detects the detection, the CPU 8 drives the feed roller 3 to rotate at an increased speed, and Then, the perforation 6 is stopped in correspondence with the fixed blade 2.

0012 In this way, in the image forming apparatus of this embodiment, the roll paper R is fixed so that it can be cut. The blade 2, the optical sensor 5 that detects the detection hole 6a of the perforation 6 of the roll paper R, and the roll Detection of the feed roller 3 that feeds the pieces of paper R, the driven roller 4, and the detection hole 6a of the optical sensor 5. By being equipped with a CPU 8 that controls the drive of the feed roller 3 based on the information signal, Since the perforation 6 stops corresponding to the fixed blade 2 located at a predetermined position, the roll paper R can be easily separated along the perforations 6.

[0013] Note that the present invention is not limited to the above embodiments, and may be implemented as follows. . (a) In the configuration of the above embodiment, the fixed blade 2 is omitted and the perforation 6 is placed at the right end of the frame 1. To stop at a predetermined position located further outward than 1a. (b) In the above embodiment, a reflective optical sensor was used as the detection means, but a transmissive optical sensor was used as the detection means. Adopt other sensors such as sensors. (c) In the above embodiment, the detection hole 6a was provided at the perforation 6 of the roll paper R. , Instead of this, the perforation 6 is marked and detected. (2) Provide a perforation detection mark at a position other than perforation 6.

[0014]

[Effect of the idea]

As detailed above, according to the image forming apparatus of the present invention, the perforations of the roll paper are Because it stops at a fixed position, it has the excellent effect of allowing you to easily separate the roll paper. play the fruit.

[Brief explanation of drawings]

FIG. 1 is a partial schematic diagram showing an image forming apparatus according to an embodiment.

FIG. 2 is a perspective view showing roll paper installed in the image forming apparatus.

FIG. 3 is an electrical block diagram showing control means of this embodiment.

[Explanation of symbols]

3 feed roller, 4 driven roller, 5 optical sensor, 6
Perforation, 8 CPU.

Claims (1)

[Scope of utility model registration request] 1. A detection means for detecting perforation detection marks formed at predetermined intervals on a roll paper, a paper feed means for feeding pieces of the roll paper, and a paper feed means based on a detection signal from the detection means. 1. An image forming apparatus comprising: a control means for driving and controlling a perforation of a roll paper and stopping the perforation of the roll paper at a predetermined position.