JP3273822B2 - Copier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine, and more particularly to a copying machine capable of replenishing transfer paper from a high position of a copying machine main body.

[0002]

2. Description of the Related Art Recently, for the purpose of saving space, so-called front-loading type copiers, for example, in which transfer paper is fed from the front side of a copier body, have been increasing. ing. However, in a front-loading type copying machine, a tray frequently operated by a user is located near the floor, which makes the work cumbersome or difficult.

A problem with such a front-loading type copying machine is that in the case of a so-called digital copying machine, it is necessary that a document reading section (scanner section) and a transfer drum of a transfer / fixing section be located close to each other. In view of the above, the document reading unit, the transfer paper stock unit, and the transfer / fixing unit can be arranged in this order from the upper side of the copying machine main body. In such a copying machine, if a manual tray is provided on the exit side of the transfer paper stock section, the transfer paper loading property to the tray becomes good, but the transport path to the transfer / fixing section becomes longer, and There is a problem that the risk of causing a paper jam is great. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a copying machine capable of greatly reducing the risk of paper jam without impairing the transfer paper loadability.

[0004]

In order to achieve the above object, a copying machine according to the present invention has a copying machine in which a document reading section, a transfer paper stock section, and a transfer / fixing section are arranged in order from the upper side of a copying machine body. In the machine, a manual tray provided on the output side of the transfer paper stock unit can be moved up and down between a position where the transfer paper is loaded and a position where the loaded transfer paper is fed,
The loading position is approximately the same height as the transfer paper stock unit, and the paper feeding position is approximately the same height as the transfer / fixing unit.

[0005]

[0006]

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a copying machine according to the present invention will be described with reference to FIG. The copying machine shown in FIG. 1 mainly includes a large-volume paper feeding device 2 and a paper discharging device 3 arranged on one side of the copying machine main body 1, and a manual tray 4 arranged on the other side of the copying machine main body 1. Things.

The copier body 1 has a scanner section 5 at the top, a transfer / fixing section 6 at the bottom, and a plurality of trays 7.
Are arranged in the middle of them. At the right end of each tray 7, a pickup roller 8 and a feed roller 9 are arranged.
The transfer paper is lowered within 0 and supplied to the transfer drum 11 of the transfer / fixing unit 6.

As is well known, a plurality of intermediate rollers 12 may be provided in the transfer path 10 as shown in FIG. 1 to lower the transfer sheet, but as shown in FIG. If the transfer paper is once put on standby by disposing a stopper 13 near the lower end position of the transfer paper 10 and the transfer paper is aligned by the jogger 14 at the same time, it is possible to carry the transfer paper without providing an intermediate roller. Skew and lateral registration error correction can be performed near the roller pair 15, so that accurate conveyance is possible.

The manual feed tray 4 is attached to the copying machine main body 1 so as to be able to move up and down by, for example, a helical gear fixed to a screw shaft 16 and a shaft of a motor 17, and when transfer paper is loaded at a position shown by a solid line in FIG. Transfer tray 4
It is lowered to the height of the manual feed opening 18 of the fixing unit 6 (the position indicated by the dotted line in FIG. 1), and the feeding of the transfer paper or the copying operation is completed. It returns to its original position by sensing that the copy paper has been removed. Therefore, transfer paper can be loaded at a high position, and by feeding paper from the height position of the manual feed opening 18, even small-size paper with a high risk of lateral displacement during conveyance can be accurately fed. Jams are less likely to occur.

[0011]

According to the first aspect of the present invention, as described above, the manual feed tray provided on the exit side of the transfer paper stock section can be moved up and down. Loading is possible, and furthermore, even if the transfer paper is a small size paper, it can be fed with high accuracy, and there is an effect that jamming or the like hardly occurs.

[0012]

[0013]

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of a copying machine according to the present invention.

FIG. 2 is an enlarged partial cross-sectional view showing a modification of the configuration of the transport path in the copying machine shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Copier main body 2 Mass feeder 3 Paper discharger 4 Manual tray 5 Scanner part 6 Transfer / fixing part 7 Tray 8 Pickup roller 9 Feed roller 10 Transport path 11 Transfer drum 12 Intermediate roller 13 Stopper 14 Jogger 15 Register roller pair 16 Screw shaft 17 Motor 18 Opening for manual feed 19 Output tray

──────────────────────────────────────────────────続 き Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G03G 15/00 550 G03G 21/16-21/18 G03G 15/00 510-534

Claims (1)

(57) [Claims] 1. A copying machine in which a document reading section, a transfer paper stock section, and a transfer / fixing section are arranged in order from the upper side of a copying machine main body, a manual feed tray provided on an output side of the transfer paper stock section is provided with a transfer tray. It is possible to move up and down between a position for loading paper and a position for feeding the loaded transfer paper. The loading position is almost the same height as the transfer paper stock unit, and the paper feeding position is the transfer / fixing position. A copying machine characterized in that the height is almost equal to the height of the copying machine.