JPS58117560A - Copying machine equipped with transfer paper storage part - Google Patents

Abstract

PURPOSE:To reduce the weight and size of a copying machine by forming the bottom plate of a transfer paper storage cassette together with the bottom plate of the copying machine in one body. CONSTITUTION:The transfer paper storage cassette 1 is incorporated in the copying machine body 10 in one-body structure and the bottom plate of the cassette 1 serves as the bottom plate 2' of the copying machine body. To supplement transfer paper PR, uniformly stack sheets of transfer paper PR are loaded through an opening part 9 made in a flank of the copying machine body. The sheets of transfer paper PR are held so that one end of each sheet is as high as the upper side of the transfer paper storage part. A paper feed roll 6 rotates to separate only one sheet of transfer paper PR from a retaining pawl and the sheet is conveyed to a resist roller 7. Each sheet of transfer paper is carried to a photosensitive drum 8 by the resist roller 7 and passed through a transfer charger part 11 for transfer, and the paper is then discharged out of the machine by a discharge roller 12.

Description

[Detailed description of the invention] The present invention relates to a transfer paper storage member for a copying machine.

In particular, the present invention relates to a transfer paper storage member used in a portable electrophotographic copying machine.

In conventional small and popular electrophotographic copying machines, in order to easily replenish transfer paper, a cassette-shaped transfer paper storage member (hereinafter simply referred to as a cassette) that is independent of the copying machine body is used.
was prepared, the cassette was removed from the copying machine, transfer paper was loaded into the cassette, and this was inserted into the copying machine. The cassette was made to be strong so that it could be handled independently from the copying machine, and therefore the cassette itself became heavy. Furthermore, the cassette holder on the main body of the copying machine has a receptacle, and this mechanism increases the overlap of the copying machines themselves.

The inventors have been conducting various studies to make copying machines smaller and more portable, and one of the important issues in this type of portable I machine is to reduce the weight of the transfer paper feeder. And,
Furthermore, in order to make it portable, K is not preferable if it is an SA type in which the copying machine main body and the cassette are separate, as in the past, not only because the copying machine main body becomes large but also because the cassette itself is added as an accessory.

Under the above-mentioned conditions, the present invention fixes and incorporates a cassette into the main body of a copying machine, and in order to reduce the weight thereof, a part of the casing of the copying machine, for example, the bottom plate of the bottom plate of the main body of the copying machine When refilling the transfer paper, leave it as it is or
Alternatively, a part of the main body or bottom plate of the copying machine is opened and transfer paper is loaded into a fixed transfer paper storage section.

That is, the present invention is a copying machine equipped with a transfer paper storage section, characterized in that the transfer paper storage section is configured to also serve as a member forming a casing of the copying machine.

This will be explained below using one drawing.

Figures 1a and 1b show general examples of cassettes, which are made of gold maple or metal and plastic materials, and the paper portion has a double structure of a bottom plate 2 and a transfer paper mounting plate 3.
The transfer paper mounting plate 5 on which the transfer paper is placed is an aluminum plate with a thickness of about 1.5 W. One end of the plate is supported on the inner bottom side of the cassette 1, and the bottom plate 2 is supported near the one end. and a transfer paper mounting plate 6 via a spring 4. When replenishing the cassette with transfer paper, place the stacked transfer papers aligned on the transfer paper placement plate. At this time, one end surface of the transfer paper is always lifted up by the spring 4 to a height that corresponds to the upper surface of the cassette. Prevents from jumping out.

On the copying machine main body side, a paper feed roller 6 for taking out the transfer paper from the cassette is provided so as to be pressed against the uppermost surface of the transfer paper by the spring 4. Alternatively, a configuration may be adopted in which the transfer paper on a pre-inclined transfer paper placement plate is pressed against the transfer paper by a spring force attached to the paper feed roller 41AK. Only one sheet of transfer paper is removed from the presser claw 5 by the rotation of the paper feed roller 6, and is conveyed to the photoreceptor surface by the registration rollers 7. In some cases, a detector l1l (not shown) is provided to detect when paper runs out.

Next, the present invention will be described with reference to FIG. 2, which shows a sectional view of one embodiment. Copy machine main body 1 in 10! It incorporates the ISK cassette 1 as an integral structure, and the bottom plate of the cassette 1 also serves as the bottom plate 2' of the copying machine main body, and when replenishing the transfer paper PR, there is an opening 9 provided on the side of the copying machine main body. Then, the aligned and stacked transfer papers PR are inserted and loaded. On this occasion,
By stacking and loading a hard thin plate or the like on the upper surface of the transfer paper PR and removing the thin plate after loading, the transfer paper can be loaded without being disturbed by a paper feed roller 6 provided in pressure contact with the surface of the transfer paper. The transfer paper PR loaded in the transfer paper storage section in this manner is held at one end by the spring 4 at a height that coincides with the upper side of the transfer paper storage section. The paper feed roller 6 rotates to remove only one sheet of transfer paper PR from the presser pawl and convey it to the registration rollers 7. Further, the transfer paper is carried by the registration rollers 7 to the photosensitive drum 8 having a toner image on its surface, passes through the transfer charger 11, is transferred, and is carried out of the machine by the carry-out roller 212.

Figures 4 and 4 were taken into consideration to facilitate and ensure insertion of one sheet when replenishing transfer paper PR.
The figure shows another embodiment in which the copying machine opens and closes up and down with the transfer paper storage section as a boundary, and Figure 4 shows a part of the bottom of the copying machine when it is upright when replenishing transfer paper. An embodiment is shown in which the bottom plate of the transfer paper storage area is opened and closed via a hinge. FIGS. 5 and 4 - Specific Examples are particularly excellent examples of the present invention. Furthermore, in the first embodiment, it is also possible to adopt a configuration in which the paper feed roller 6 escapes upward when replenishing the transfer paper.

As a result of our efforts to reduce the weight of all parts of a portable copying machine in order to make it more compact and lightweight, the present invention was developed by incorporating a part of the transfer paper storage cassette, for example, its bottom plate, into the bottom plate of the copying machine itself. By forming it, it is possible to bring about the effect of reducing weight.

[Brief explanation of drawings]

Figures 1a and 1b are general transfer paper storage cassettes, Figure 1a is a winter perspective view of Figure 8, Figure 1b is a vertical sectional view of the portion shown in Figure 1a, and Figure 2 is an embodiment of the present invention. A sectional view showing,
5 and 4 show schematic cross-sectional views according to other embodiments of the invention. 1...Cassette 2.2'...Bottom plate 6...
・Transfer paper mounting plate 4...Spring agent Masumushi (8107) Takashi Iiki 2 Figure 7 Figure 4

Claims (1)

[Claims] +11. A copying machine equipped with a transfer paper storage section, characterized in that the casing of the copying machine is configured to serve as at least a lower part of the transfer paper storage section. (2) A copying machine equipped with a transfer paper accommodating section according to claim 11, wherein the casing of the copying machine has an opening for loading a transfer paper. (3) The copying machine A copying machine equipped with a transfer paper storage section according to claim (1), which is configured to open and close vertically in a horizontal direction with the transfer paper storage section as a boundary for loading transfer paper. A copying machine equipped with a transfer paper storage section according to claim 1, wherein the bottom plate of the transfer paper storage section is opened and closed by an opening/closing means for loading the transfer paper.