JPS61235854A - Copying machine - Google Patents

Abstract

PURPOSE:To perform all operations on the front of the copying machine and to facilitate the handling in the feeding of, specially, copying paper of special size more by providing a manual insertion slit to part of the top surface part of the copying machine and providing a guide part for copying paper inserted into the paper feed slit on the original cover of an original platen. CONSTITUTION:A console panel 2 is arranged at the top surface part of the copying machine body 1 closely to an operator, a copying paper feed cassette 3 and a discharge tray 4 are provided under the front part, and an original platen 5, an original cover 6, and the manual insertion slit 10 for thick copying paper 9 which is arranged at its inner side and used for both-surface copying are provided at the top surface part of the main body. Further, a guide mechanism which guides copying paper of special size inserted to be inserted into the manual insertion slit to a manual insertion slit is provided nearby the inner part of the original cover. Then, guide plates 26-a and 26-b of both sides are adjusted by the guide mechanism 25 according to the width size of copying paper to be used to set the distance between the guide plates to necessary size lo, thereby determining the position and direction of the feeding of the copying paper accurately and easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improved technique for downsizing, stabilizing, and improving operability of a copying machine.

[Conventional technology]

Conventional copying machines have an operation panel on the top of the copying machine, and when an operator places a document on the original table near the operation panel on the top of the machine and presses an operation button on the operation panel, Copy paper is fed from a paper feed cassette loaded on the right (or left) side, and the toner image is transferred and fixed from the photoreceptor drum, and the paper is received at the outlet on the left (or right) side. In addition, the paper feed cassette is loaded from the front, and the copy paper fed from there is transferred from the photoreceptor, fixed, and collected in the ejection tray on the left or right side. A system was adopted in which the copy paper fed from the paper feed cassette was received by a discharge tray at the rear side after the copy paper was transferred.

[Problem that the invention seeks to solve]

As mentioned above, when looking at the copying machine from the operator's side, conventional copying machines require work space on the front and all or one of the left and right sides, and when there is an ejection port on the rear. This included problems with exclusive space, such as the need for at least enough space in the front, on either the left or right sides, and at the rear for people to enter and exit. In addition, there is also the problem that the operating range of the operator is too wide and the operator gets tired, and the maintainability cannot be said to be good. In order to solve these problems, the present invention provides a copying machine in which all operations can be performed from the front of the copying machine, and in particular, feeding of special-sized copy paper is made easier. With the goal.

[Means for solving problems]

The purpose of this is to provide a copying machine in which a copy paper feed cassette is loaded in the front of the copying machine, a recorded copy paper ejection section is also arranged in the front of the copying machine, and a manual paper feed port is installed on the top of the copying machine. This is achieved by a copying machine characterized in that a guide portion for the copy paper entering the paper feed port is provided on a document cover of the document table.

[Examples and effects]

FIG. 1 is a cross-sectional view of a copying machine according to one embodiment of the present invention, taken along a plane perpendicular to the copy paper conveying roller axis and the photosensitive drum axis. It is operated from the side, and the right side in the figure is the rear part. An operation panel 2 is arranged on the upper surface of the copying machine body 1 near the operator.
Copy paper feed cassette 3. A discharge section 4 is provided, and a document table 5, a document cover 6, and a manual feed port 10 for thick copy paper 9 including double-sided copying are provided on the upper surface of the main body. Further, as shown in FIGS. 1 and 2, a guide mechanism 25 for guiding the special size copy paper 9 to be inserted into the nucleus holder is provided in a portion near the back of the document cover. ing. The guide mechanism adjusts the guide plates 26-a and 26-b on both sides according to the width of the copy paper 9 to be used, and adjusts the distance between the guide plates to the required size l. The position and direction of feeding of the copy paper 9 can be determined accurately and easily. When the document is held by the document cover 6, this guide mechanism is naturally additionally connected to the nucleus holder, so that the feeding waste of the copy paper 9 can be handled at a position closer to the operator. This will further improve operability.

Now, the copy paper 7 of normal size and normal thickness is conveyed from the paper feed cassette 3 through the conveyance rollers 11 , 12 , 13 and conveyance shoes 14 , 16 , and then transferred to the photosensitive drum 19 .
Then, the original on the document table 5 is condensed onto the photoreceptor 19 by the optical system 20, and the toner-developed image on the photoreceptor is transferred onto the copy paper and thermally fixed by the fixing device 21, and then the copy is made. The paper is collected onto the output pallet 4.

On the other hand, the thick special copy paper 9 is similar to various recording cards such as postcards and book classification cards, and the copy paper 9 is connected to a guide mechanism 25 provided on the document cover 6 on the document table 5 at the top of the copier. The conveyor rollers 17, 18, 13 and the conveyor shoe) 15,
16 and reaches a photoreceptor drum 19 in the same way as the plain paper copy paper 7, where the image on the photoreceptor is transferred, passes through a fixing device 21, and is collected onto the discharge section 4. That is, after the conveyance roller 13 and the conveyance chute 16, ordinary copy paper, thick special copy paper, etc. are collected through a common path. Ordinary copy paper 7 is conveyed from the paper feed cassette 3, made a 180° U turn at the conveyance chute 14, and then collected on the output pallet. However, since the paper has good flexibility, it can also be made a 180° U turn. However, thick special copy paper 9 such as postcards and book classification cards has reduced flexibility and cannot withstand sudden 180° U-turns, resulting in poor conveyance. The intention was to avoid U-turns and to perform stable conveyance by feeding the conveyance chute from a separate port and making a 90'° turn with a large gentle curve with a radius of curvature of about 150. Furthermore, the path from the manual feed port 10 to the conveyance chute 15 via the guide mechanism 25 is designed so that it can be turned with a gentle curve, so that the conveyance is smooth.

Being able to arrange each function of the copying machine as described above means replacing the paper cassette, collecting the copy paper of the copying method, setting the original on the document table, operating the various operation buttons on the operation panel, and monitoring the operating status. The guide mechanism 25 provided on the original cover 6 on the original platen 5 allows all operations to be performed by manually feeding special copy paper from the front of the copying machine, and even when the height of the copying machine is as high as possible. Although it is easy to place the special copy paper 9 on the paper as described above, operability is further improved by tilting the document table 5 and document cover 6 as shown in FIG. Also, if you tilt the document table towards the operator in this way,
Since the low front side can be used as a reference for exposure scanning of the original, a reference wall 22 is provided at the lowest side of the original table so that the edge of the reference side of the original hits with the help of its own weight. It functions so that the operation of placing the original on the original table becomes extremely easy.

〔Effect of the invention〕

According to the present invention, both normal thickness copy paper and thick copy paper of a specific size can be stably conveyed, and in terms of operation,
It became possible to perform all operations from the front of the copying machine, and stable copying came to be expected. Furthermore, since there is no work to be done on the rear side or on both the left and right sides, it is no longer necessary to set aside 1ζ extra space for installation, making it possible to provide a very efficient copying machine.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of one embodiment of the present invention, and FIG. 2 is a perspective view of a copying machine equipped with a guide mechanism provided on a document cover. 1...Copy machine body 2...Operation panel 3...
・Paper feed cassette 4...Ejector 5...Document table
6... Original cover 10... Manual feed ports 11, 12, 13, 17, 18... Conveyance rollers 14, 15, 16... Conveyance chute 19...
・Photoreceptor 20...Optical system 21...Fixing device 22...Reference wall 25...Guiding mechanism
26-a...Fixed guide plate 26-b...Movable guide plate 26-c...Adjustment slide groove 27...Body side guide Applicant: Konishiroku Photo Industry Co., Ltd. Figure 1

Claims (1)

[Claims] In a copying machine, a copy paper feed cassette is loaded in the front part of the copying machine, a discharge tray for recorded copy paper is also arranged in the front part of the copying machine, and a manual paper feed port is located in a part of the top part of the copying machine. A copying machine characterized in that a guide portion for copy paper entering the paper feed port is provided on a document cover of the document table.