JPS6113864A - Paper feeding device for facsimile or the like - Google Patents

Abstract

PURPOSE:To obtain a paper feeder selected optionally for a sheet paper system or a roll paper system by providing a sheet paper cassette containing sheet paper and a roll paper cassette containing roll paper and a cutter in common attachably and detachably to a paper feeding section of the device main body. CONSTITUTION:In the embodiment, a roll paper cassette 26 freely attached and detached to a paper feeding section 14 of a facsimile main body is provided in common to a sheet cassette 15. The cutter 33 consists of a moving blade 34 and a fixed blade 35 and guide plates 36, 37 are provided before and after the cutter. Thus, when the recording size is fixed, a small sized and simplified type for the copying machine is applied by using the sheet paper cassette 15. On the other hand, when a free size in the sub-scanning direction is requested, the free size reception is attained easily by using the roll paper cassette 26 in place of the sheet paper cassette 15.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a paper feeding device for facsimiles, printers, copying machines, and the like.

BACKGROUND ART In general, electrostatic recording and thermal recording methods are mainstream in facsimiles, but recently facsimiles using plain paper have also appeared, and their trends are attracting attention. Also, in the field of printers, laser printers, thermal transfer printers, etc. have appeared in place of the conventional dot type, daisy-wheel type, etc.

These methods are characterized by the fact that they can use plain paper, and in order to make the most of this advantage, they are sheet paper methods and can use the same paper used in copying machines, etc. is desired.

However, in facsimiles, the receiving side often has to decide the size of the recording paper according to the size of the original to be sent, so in most cases roll paper is used and the size is free in the sub-scanning direction. If a sheet feeding method is adopted for this purpose, there will be disadvantages.

OBJECTS The present invention has been made in view of the above points, and an object of the present invention is to provide a paper feeding device for a facsimile machine or the like, which can be arbitrarily selected from either a sheet feeding method or a roll paper feeding method.

Structure In order to achieve the above object, the present invention provides a sheet paper cassette that stores sheet paper and a roll paper cassette that stores roll paper and a cutter device so that they can be commonly attached to the paper feeding section of the main body of the device. It is characterized by this.

- Hereinafter, one embodiment of the present invention will be described based on the drawings. This example is applied to a transfer-type electrostatic recording facsimile machine that can use plain paper.As shown in Figure 1, in order to make it smaller and simpler, it is constructed based on a sheet paper method. has been done.

First, a dielectric belt 1 is provided as a recording medium in the main body of the facsimile.A charger 2, a recording electrode 3, a developing device 4, a transfer charger 5, a separation belt 6, and a cleaner unit are arranged around the dielectric belt 1. 7th grade is provided. A fixing device 8 and a paper discharge tray 9 are provided downstream of the separation belt 6. Also, a pickup roller 11 that feeds the sheet paper 10 toward the transfer charger 5;
A feed roller 12, a registration roller 13, etc. are provided, and a paper feeding section 14 is provided.

As a result, uniform charging of the dielectric belt 1 → recording by the recording electrode (time-division drive multi-stylus) 3 → reversal development →
Recording is performed on a sheet of plain paper 10 through a repeated process of transfer and cleaning.

Here, the sheet paper 10 is stored in a sheet paper cassette 15 that can be freely attached to a paper feed section 14 of a facsimile main body, as seen in a copying machine or the like.

This sheet paper cassette 15 will be explained with reference to FIGS. 1 and 2. This sheet paper cassette 15 has a movable plate 16 on the bottom surface on the leading end side, and is configured so that the topmost sheet of the sheet paper 10 pushed up and stored by a push-up plate 17 on the main body side is always in contact with the pick-up roller 11. has been done.

A shaft 12a of the feed roller 12 is supported by a main body side plate 19 via a bracket 18. A sprocket 21 is provided on this shaft 12a via an electromagnetic clutch 20, and is connected to a motor side (not shown) by a chain 22. There is. Further, a separation roller 23 that faces and contacts the feed roller 12 is provided at the tip of the sheet paper force roller 1-15. A friction disk 24 and a pressure spring 25 are provided for this separation roller 23, so that the one-separation roller 23 is configured to rotate with a constant torque.

Therefore, the sheet paper 10 in the sheet 1-paper cassette 15 is
After being fed out by the pink-up roller 11, only the topmost sheet of paper is sent to the main body side by the feed roller 12 and separation roller 23, and is used for recording.

Therefore, in this embodiment, a roll paper cassette 26 is provided in common with the sheet paper cassette 15, which can be freely attached to the paper feed section 14 of the facsimile main body.

As shown in FIGS. 3 and 5, the roll paper cassette 26 consists of a cassette body 27 and a cover 28 rotatably attached to the cassette body 27. By opening the cover 28, a roll of plain paper can be opened. Paper 29 can be set in a roll paper holder 30. A feed roller 31, a pressure roller 32, and a cutter device 33 are provided in the roll paper force roller 1-26, and the roll paper 29 is pulled out by the feed roller 31 and cut into the cutter device 33.
It stops at that part. The cutter device 33 has a movable blade 34
and a fixed blade 35, and a guide plate 36 in front and behind the fixed blade 35.
37 are provided. Further, a tension roller 40 supported by a rotatable lever 38 and biased by a spring 39 is provided in front of the feed roller 31, and maintains paper feeding accuracy at a constant level by applying tension to the roll paper 29. It is configured as follows. Here, regarding the drive transmission system on the roll paper cassette 26 side, the feed roller 31
A sprocket 41 is provided on the shaft, a sprocket 42 and a clutch 43 are provided on the shaft of the movable blade 34, and a chain 46 is hooked between it and a sprocket 45 provided on the idler stud 44. A joint gear 47 is provided coaxially with this sprocket 45. A portion of this joint gear 47 is exposed at the front of the roll paper cassette 26, as shown in FIG.

Correspondingly, a joint gear 48 is also provided on the main body side, and a sprocket 49 provided on the same axis.
A chain 51 is passed between sprockets 50 provided on the shaft 12a. Further, a connector 52 is provided at the front end of the roll paper cassette 26, and is electrically connected to the main body side.

In such a configuration, FIG. 6 shows a state in which the roll paper cassette 26 is set in the paper feed section 14 of the facsimile main body. At this time, the feed roller 31 is connected to the motor, the chain 22, the sprockets 21 and 50, and the chain 5.
1. The main body side is driven by the sprocket 49 and the joint gear 48, and the joint gear 47 and the sprocket 4
5, transmitted through the chain 46 and sprocket 41 route. At this time, the clutch 43 is disconnected, and the movable blade 3
4 is not driven. As a result, the roll paper 29 is pulled out by the feed roller 31 and fed to the facsimile main body. Therefore, when the main body detects that the roll paper has been drawn out to the length required for recording, the clutch 43 is engaged via the connector 52 based on the control on the facsimile main body, the sprocket 42 becomes effective, and the movable blade 34 is rotated and the roll paper 29 is cut into a predetermined length.

Therefore, according to this embodiment, when the recording size is fixed, by using the sheet paper cassette 15 as shown in FIG. 1, it is possible to make the copying machine type smaller and simpler. can. On the other hand, if free size in the sub-scanning direction is required, instead of the sheet 1-paper cassette 15,
By using a roll paper cassette 26 as shown in FIG. 6, it is possible to easily support one-size-fits-all reception.

In particular, in the case of facsimiles, the reading width of A3 size is common, and there are many machines that have reduction and enlargement functions. It can also be used in output terminal equipment, and can be adapted to various applications.

Effects As described above, in the present invention, the sheet paper cassette and the roll paper pressurizer 1- are provided so that they can be commonly attached to the paper feed section of the main body of the apparatus, so that when the paper size is fixed, the sheet paper The use of a paper cassette allows the device to be made smaller and simpler, while the use of a roll paper cassette allows for flexible size requirements at any time.

Claims (1)

[Claims] A paper feeding device for a facsimile machine, etc., characterized in that a sheet paper cassette storing sheet paper and a roll paper cassette storing roll paper and a cutter device are commonly installed in a paper feeding section of the main body of the device.