JPS6052425A - Paper feeding cassette for copying machine - Google Patents

Abstract

PURPOSE:To improve the copying-work efficiency by installing at least a partitioning wall which extends in the direction of paper feed onto a paper feeding cassette and forming at least two sheet stack parts, thus permitting a plurality of copying paper sheets to be supplied at the same time. CONSTITUTION:In the paper feeding cassette 2 of a copying machine 1, at least a partitioning wall 13 which extends in the direction of the feed of copying paper at the center part, and at least two sheet stack parts 12a and 12b are formed. Therefore, the stack parts 12a and 12b can accommodate two sheet stacks 14a and 14b. While, at least two small-sized original copies 4 are arranged on an original-copy guiding table 3, and can be transported at the same time in the direction (b) by an original-copy transportation roller 18, when the original copy is printed. Thus, at least two copying paper sheets 15 can be supplied, and the copying-work efficiency can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper feed cassette for a copying machine that accommodates a stack of sheets of copy paper, and particularly to a paper feed cassette for use in a copying machine capable of copying large originals.

[Prior art]

In general, copying machines capable of copying large originals adopt a document movement method to prevent the device itself from increasing in size.
A large Fat document guide table is provided to guide large documents, and a large copy FHMf is provided.

It is now possible to install a paper feed cassette from the Great War to supply paper. Although it is possible to copy manuscripts stored in a shed even with such a large manuscript copying machine,
In this case, it is preferable to simultaneously copy a plurality of sheets σ) /j% m originals onto a plurality of small-sized copy sheets, since this saves the effort of cutting the copy M-sheets, etc., compared to the case of copying onto large-sized copy sheets.

However, the conventional paper feed cassette has 7 cassettes/
Since the printer is configured with two sheet stack sections, when a plurality of small originals are to be copied at the same time, it is necessary to make a pressure copy of a large copy sheet and then cut it. If you try to omit this cutting operation, you will have to copy each small document seven sheets at a time onto small copy paper, which not only prevents you from fully utilizing the copying capacity of the copier for large documents.
There is also a problem in that the copying speed cannot be improved.

[Purpose of the invention]

In view of the problems of the prior art described above, the present invention provides a paper feed cassette that can feed multiple sheets of copy paper at the same time, thereby eliminating unnecessary work such as cutting copy paper after copying. The purpose is to

[Prior art]

Before describing embodiments of the present invention, a conventional paper feed cassette will be briefly described with reference to FIG. Reference numeral 1 is a copying machine capable of copying large originals, and reference numeral 2 is a conventional paper feed cassette 2. As shown in the figure, the conventional paper feed cassette 2 has only one sheet stack section 2a, sb, and therefore cannot simultaneously feed a plurality of copy sheets into a copying machine. Therefore, although the illustrated copying machine is equipped with a large document guide table 3, it is only able to copy seven small documents 4 at a time.

That is, in this copying machine, the capability of the document guide cheagle 3, which can convey a plurality of small documents, is not fully utilized, and the copying speed cannot be improved.

2A and 28 illustrate a copying machine equipped with a paper feed cassette 12 according to the present invention, which improves the drawbacks of the conventional example. These 12 paper feed cassettes differ from the conventional paper feed cassette 2 in that they have one partition wall 13 that extends in the copy inilb feeding direction (direction indicated by arrow a in the figure), and this partition wall 13 allows a sheet to be stacked in a single stack. Parts 12m, 12b
is formed.

As described above, this paper feed cassette 1211-1 has a sheet stack portions 12m and 12b, so one sheet stack 14a and 14b can be accommodated therein. These sheet stacks are 14 m long.

There are q paper feed rollers 16 on the uppermost copy paper 15 of 14b.
are in contact with each other, and one sheet of copy paper 15 is simultaneously conveyed by these paper feed rollers 16 to copy paper transport rollers 17.

On the other hand, one small original 4 is placed side by side on the original guide table 3, and when copying the original, these two small originals 4 are
are simultaneously transported by the document transport roller 18 in the direction indicated by the arrow.

In the above embodiment, an example of a paper feed cassette having one sheet stack section has been described, but it is also possible to provide one or more sheet stack sections by providing a plurality of partition walls. Multiple sheets can be fed.

〔Effect of the invention〕

In the paper feed cassette of the present invention, a plurality of sheet stack sections are formed by providing at least one partition wall, so that a plurality of sheets can be fed at the same time. Therefore, there is an effect of increasing the copying speed, that is, shortening the copying time. Furthermore, extra operations such as cutting the copy paper after copying are no longer necessary. In particular, it becomes possible to copy two-page spread documents at once onto separate copy sheets. From another point of view, since it is possible to feed multiple sheets of copy paper at the same time, it is possible to effectively utilize the available copying widths such as development width, fixing width, exposure width, etc. in large document copying machines. .

[Brief explanation of drawings]

FIG. 1 is a perspective view of a copying machine for large originals equipped with a conventional paper feed cassette, and FIGS. 2A, 2B, and 2B are perspective views of the same copying machine as shown in FIG. The figure and its partial schematic cross-sectional view, the third figure, is an enlarged perspective view of the paper feed cassette according to the present invention. 1・・・・・・・・・Copy machine, 2・・・・・・・・・
Paper feed cassette, 3......Document guide table, 4......)g, Draft. 12... Paper feed cassette, 13...
...Partition wall, 14a, 14b...
Sheet stack, 15...Top copy paper, 16...Paper feed roller, 17...
...Copy paper conveyance roller, 18...
...Document transport roller. Figure 1 Figure 2A Figure 2B Figure 3

Claims (1)

[Claims] A paper feed cassette for a copying machine that accommodates a sheet stack of copy paper, characterized in that the paper feed cassette is provided with at least/' partition walls extending in the conveyance direction to form a plurality of sheet stack sections. paper cassette.