JPH07300266A - Paper feeding device - Google Patents

Abstract

PURPOSE:To provide a roll paper feeding device simply extracting the tip of the roll paper with a simple structure at a low cost by using a guide member forming part of the conveyance path of the roll paper concurrently as an extracting means of the tip of the roll paper. CONSTITUTION:When new roll paper is fitted and the tip of the roll paper is cut, a guide plate 6a forming part of a paper guide downstream of a cutter is made pivotally movable around a shaft 6b. When the roll paper is cut, the lever 6c of the guide plate 6a is operated to open the guide plate 6a to the operator side, a stopper 6d provided on the tip side of the guide plate 6a interrupts the conveyance path of the roll paper, and the tip section of the roll paper is extracted to the operator side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll paper feeding device used in a paper conveying path of an image forming apparatus such as a copying machine, a facsimile machine or a printer, and more particularly to a roll paper when a new roll paper is mounted. The present invention relates to a roll paper feeder that facilitates the work of trimming the ends.

[0002]

2. Description of the Related Art In an image forming apparatus such as a copying machine, continuous paper pulled out from roll paper is cut into a predetermined size, for example, a designated size such as A1 size or A0 size by operating a cutter. It was

Conventionally, when a roll paper is newly mounted, the front end of the roll paper is not straightly cut and aligned, so that the front end of the roll paper must be cut and aligned. To trim the leading edge of the roll paper, the operator sets it so that the leading edge of the roll paper is inserted into the roll paper transport path, pulls the appropriate amount of the leading edge of the roll paper that has passed through the cutter to the operator side, and then Although the cutter is operated, the operator pulls out the roll paper by inserting his or her hand inside the device or by activating an additional means for pulling out the leading end. In the latter case,
The leading end pulling means is provided independently of the guide member forming the roll paper transport path.

[0004]

However, in such a device, when the roll paper is set, it is difficult to insert the hand into the device and pull out the leading end of the roll paper, the work efficiency is poor, and the hand etc. It was also necessary to consider the possibility of damaging the

Further, in the case of the structure in which the leading end drawing means is separately provided like the latter, there is a problem that the cost of parts is increased because the guiding member and the means for drawing the leading end of the roll paper are individually provided. is doing.

The present invention has been made in view of the above-mentioned problems, and the leading end of the roll paper is obtained by using the pulling-out means of the leading end of the roll paper together with the guide member forming a part of the transport path of the roll paper. It is an object of the present invention to provide a roll paper feeding device that can be easily taken out and is inexpensive, with a simple configuration.

[0007]

In order to solve the above-mentioned problems, the present invention constitutes a part of a paper guide downstream of a cutter when the front end of a roll paper is newly aligned when a new roll paper is mounted. Guide plate (6a) to shaft (6b)
The guide plate (6
The lever (6c) of a) is operated to open the guide plate (6a) to the operator side, whereby the stopper (6d) provided on the leading end side of the guide plate (6a) blocks the roll paper transport path, The feature is that the front end of the paper is pulled out to the operator side.

[0008]

With such a construction, when the front end of the roll paper is cut and aligned, the front end of the roll paper can be pulled out to the operator side by simply operating the lever of the guide plate without putting a hand inside the apparatus. it can.

[0009]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows an embodiment according to the present invention.
When loading the roll paper, the operator opens the door 7 of the apparatus to open the roll paper loading unit 8 and the roll paper leading end unit 9. As shown in the figure, the paper P pulled out from the newly loaded roll paper 1 is sent to the roll paper transport path 3 by the paper feed roller pair 2, passes through the cutter 4, and then is sent to the guide member 6. To be

The guide member 6 constitutes a roll paper conveyance path 3a by two guide plates 6a and 6e facing each other. The guide plate 6a on the operator side (on the right side in the figure) for mounting the roll paper is pivotable around a shaft 6b,
The conveyance path 3a can be opened and closed by operating the lever 6c at one end of the guide plate 6a.

By operating the lever 6c, the guide plate 6a is opened upward to the operator side. This state is shown in FIG.
When the guide plate 6a is opened, the stopper 6d provided on the front end side of the guide plate 6a moves and acts so as to block the conveyance path 3a.

As shown in FIG. 3, the sheet P blocked by the transport path 3a bulges toward the operator side below the open guide plate 6a and hangs down in the direction of gravity. The hanging paper P is
The operator pulls the sheet toward the operator side and operates the cutter 4 by an appropriate switch means to cut the paper P and align the leading edge. The operation of the cutter 4 may be automatically performed by closing the door 7, or may be manually performed. After such trimming, scraps of unnecessary paper are appropriately discarded.

[0011]

With the above-described structure, the cut-out piece of the roll paper tip can be easily taken out, the cost can be reduced by using the leading end pulling means and the guide plate in common, and the structure is also simple.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment according to the present invention.

FIG. 2 is a side view for explaining an embodiment according to the present invention.

FIG. 3 is a side view for explaining an embodiment according to the present invention.

[Explanation of symbols]

 6 Guide member 6a, e Guide plate 6b Shaft 6c Lever 6d Stopper

Claims (1)

[Claims] 1. A guide plate (6a) forming a part of a paper guide downstream of a cutter when a roll paper is newly mounted and the front ends of the roll paper are cut and aligned, and a shaft (6b).
The guide plate (6
The lever (6c) of a) is operated to open the guide plate (6a) to the operator side, whereby the stopper (6d) provided on the leading end side of the guide plate (6a) blocks the roll paper transport path, A roll paper feeder that allows the operator to pull the leading edge of the paper toward the operator.