JPH0623874B2 - Copier - Google Patents

Description

The present invention relates to an improved technique for miniaturizing and stabilizing a copying machine and improving operability.

[Conventional technology]

In a conventional copying machine, an operation panel is provided on the upper surface of the copying machine, and an operator puts an original on an original table near the operation panel on the upper surface and presses an operation button on the operation panel. Copy paper supplied from a paper feed cassette or a paper feed tray mounted on the right (or left) side surface of the front surface has its toner image transferred and fixed from the photosensitive drum, and the left (or right) side surface portion of the copy paper is fixed. Paper discharged to the discharge tray, or copy paper supplied by loading the paper feed cassette from the front side is collected in the discharge tray on the left or right side after fixing after receiving the image transfer from the photoconductor. Further, there has been adopted a system in which the copy paper supplied from the paper feed cassette loaded from the front part is transferred and then received by the discharge tray on the rear part.

[Problems to be solved by the invention]

In the conventional copying machine, as described above, when the copying machine is viewed from the operator side, a working space is required on the front side, the left side, the right side, or any one of them, and there is a discharge port on the rear surface. In this case, there is a problem regarding a place to occupy, such as a front, one of the left and right sides, and a rear side that requires at least a space for people to enter and exit. In addition, when the operator works, there is a problem that the range of action is too wide and tired, and the maintainability is not good. SUMMARY OF THE INVENTION It is an object of the present invention to provide a copier in which all operations can be performed in front of the copier in order to solve such a problem.

[Means for solving problems]

For this purpose, in a copying machine, a copy paper feeding cassette or a paper feed table is loaded in the lower part of the front part of the copying machine, and a discharge tray for recorded copy paper is also arranged in the middle part of the front part of the copying machine. An opening is provided in a part of the upper surface of the copying machine, and the curve of the transport path of the thick copy paper for manual sheet feeding is looser than the curve of the transport path from the cassette or the paper feed table. Is achieved by a copying machine characterized by the fact that they are merged on the upstream side of the transfer position.

[Examples and functions]

FIG. 1 is a sectional view of a copying machine according to an embodiment of the present invention, taken along a plane perpendicular to the axis of a copy paper conveying roller.
The operation is performed on the front side on the left side of the figure, and the right side of the figure is the rear side of the copying machine. An operation panel 2 is arranged on the upper surface of the main body 1 near the operator, a copy paper feeding cassette 3 and a discharge tray 4 are provided below the front surface, and an original table 5 is provided on the upper surface of the copying machine main body 1. A document cover 6 and a manual feed port 10 for thick copy paper 9 including double-sided copy are provided on the back side thereof. The rear part is in contact with the wall. The copy paper 7 normally used is from the paper feed cassette 3 to the carrying rollers 11, 12, 13 and the carrying chute 1.
It is conveyed through 4, 16 and reaches the photoconductor drum 19 where the original on the platen is imaged on the photoconductor 19 by the optical system 20 and the toner-developed image on the photoconductor is transferred onto the copy paper. After being heat-fixed by the fixing device 21, the copy paper is collected on the discharge tray pallet 4.

On the other hand, the thick special copy paper 9 is similar to a double-sided copy paper which has been copied on one side or various recording cards such as postcards and book classification cards. It is inserted from a certain manual insertion port 10 and conveyed through the conveying rollers 17, 18, 13 and the conveying chutes 15, 16 to reach the photosensitive drum 19 like the plain paper copying paper 7, and the image on the photosensitive member is transferred there. , And is collected on the discharge tray 4 through the fixing device 21. That is, the transport roller 13, the transport chute
After 16, normal copy paper and thick special copy paper are collected through a common route. Ordinary copy paper 7 is conveyed from the paper feed cassette 3 and 180 ° at the conveyance chute 14.
It is U-turned and collected on the discharge pallet, but since the flexibility of the paper is good, it can handle 180 ° U-turn without any problems, but it is a double-sided copy or a thick special copy paper such as postcards and book classification cards. No. 9 has reduced flexibility and has a sharp 180 ° U
In the present invention, 180 ° U-turn is avoided to feed from another port and the radius of curvature R of the transport chute 15 is 90 ° in a gentle curve because it cannot endure a turn and causes poor transport.
It was intended to make a stable conveyance by making it turn. In addition, since the path from the manual feed port 10 to the transport chute 15 can be turned with a gentle curve, the transportability is smooth.

By arranging each function of the copier as described above,
All operations (replacement of the paper feed cassette, collection of copied copy paper, setting of originals on the platen, operation of each operation button on the operation panel and monitoring of operation status, manual insertion of special copy paper) The document table 5 and the document cover 6 can be placed in front of the document table, and the document table 5 and the document cover 6 can be easily inserted even if the height of the copying machine is high to some extent.
It is effective to incline as shown in FIG. If the platen is tilted toward the operator in this way, the lower side of the platen can be used as the reference for the exposure scanning of the document. The edge on the side is designed so that it can hit against itself due to its own weight.
This works to make it extremely easy to place the original on the original table.

〔The invention's effect〕

According to the present invention, both normal-sized copy paper and thick-sized copy paper of a specific size can be stably conveyed, and all operations can be performed in front of the copying machine. , Stable copying has come to be expected. Also, since there is no work on the rear side or both sides, it is no longer necessary to reserve a space for the installation space, and a highly effective copying machine can be provided.

[Brief description of drawings]

 FIG. 1 is a sectional view of one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Copier main body, 2 ... Operation panel 3 ... Paper feed cassette, 4 ... Ejection tray 5 ... Original plate, 6 ... Original cover 10 ... Manual feed port 11, 12, 13, 17, 18 ... Conveying rollers 14, 15, 16 … Conveying chute 19… Photoconductor, 20… Optical system 21… Fixer, 22… Reference wall

Claims (1)

[Claims] 1. In a copying machine, a copying paper feed cassette or a paper feed tray is loaded in the lower part of the front part of the copying machine, and a discharge tray for recorded copying paper is also arranged in the middle part of the front part of the copying machine, and is manually fed. A paper port is provided in a part of the upper surface of the copying machine, and the curve of the transport path for the thick copy paper for manual sheet feeding is provided more gently than the curve of the transport path from the cassette or the paper feed table. The copying machine is characterized in that the path is merged on the upstream side of the transfer position.