JPS6199168A - Image forming device - Google Patents

Abstract

PURPOSE:To decrease the height size of an original platen and to permit the setting of the original with an operator in a sitting posture by providing a paper feed cassette for a material to be formed with image to one side part of an original platen in the direction intersecting orthogonally therewith and making freely attachable and detachable the cassette from the front side of the device body. CONSTITUTION:The paper feed cassette 21 is provided to one side part of the original platen 6 in the direction intersecting orthogonally therewith in the perpendicular part of an electrophotographic copying machine of an inverted L shape installed to the top surface part of a desk 1. Paper P as the material to be formed with image is housed into the cassette 21 and is delivered successively by each sheet by a feed roller 22. The delivered paper is conveyed along a conveying path 23. The height size of the plate 6 is thus made smaller than the height size thereof in the conventional construction in which the feed cassette is set in the lower part of the platen 6. The operator is able to set the cassette 21 from the front face part of the device in the state of sitting on a seat.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an image forming apparatus such as an electronic copying machine that is used while being placed on a desk.

[Technical background of the invention and its problems]

Generally, an electronic copying machine is equipped with a document table on the top of its main body, the entire document is placed on the document table, light is scanned over the document by an optical system, and all of the reflected light is imaged on the surface of a photoreceptor. to form an electrostatic latent image, and make it visible by supplying a developer from a developing device. At the same time, paper is fed from a paper feed cassette, the visualized image is transferred to this paper, and the image is ejected. It is supposed to be done.

However, in the past, a paper feed cassette was placed below the document table. As a result, the height of the document table increases accordingly, and when the document table is installed on a desk, it is difficult for the operator to set the document while sitting on a chair, which is inconvenient.

Furthermore, since the paper feed cassette 7) is set from the side of the main body of the apparatus, it is difficult to attach and detach the paper feed cassette while sitting on a chair.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to reduce the height dimension of the document table, and to
It is an object of the present invention to provide an image forming apparatus in which an image forming material supply section can be easily attached and detached from the apparatus main body.

[Summary of the invention]

In order to achieve the above object, the present invention provides a supply section for an image forming material on one side of the document table in a direction perpendicular thereto, and the supply section is detachably attached to the front surface of the main body of the apparatus. This is what happens.

[Embodiments of the invention]

Hereinafter, the present invention will be described with reference to an embodiment shown in the drawings. In the figure, reference numeral 1 denotes a desk, and an electronic copying machine 2 is placed on the upper surface of the desk 1. The main body 3 of this electronic copying machine 20 is constructed in an abbreviated shape and has a horizontal portion 4 and a vertical portion 5. The horizontal part 4 is placed on the top surface of the desk 1, and the vertical part 5 is placed on the top surface of the desk 1.
are arranged in the following manner along the side surface of the As shown in FIG. 3, an original platen 6 is provided on the upper surface of the horizontal portion 4 of the main body 3, and the lower part of the original platen 6 has a run shift, first to third mirrors 5-s, 9°. 10, a lens, f11, and a fourth mirror 12. A photosensitive drum 14 is rotatably provided in the center of the vertical portion 5 of the main body 3, and a charger 15, a developer 16, a developer 16,
Transfer and peel chargers 17 and 18 and a cleaner 19 are provided. Further, within this vertical portion 5, a paper feed curved 21 as a paper feed portion is provided on one side of the document table 6 in a direction perpendicular thereto. This paper cassette 2
A sheet of paper P as an image forming material is stored in the inside of the image forming apparatus 1, and this sheet of paper P is sequentially fed out one by one by the rotation of a paper feed row 222. This sent out paper P
is conveyed along a conveyance path 23. The conveyance path 23 includes a registration roller 24, a transfer/separation charger 1, and a transfer/separation charger 1.
7.1B, a conveyor belt 25, a fixing device 26, and a paper discharge roller 27 are provided.

An insertion opening 28 is provided in the front face of the vertical portion 5 of the main body 1, and the paper feed cassette 21 is detachably inserted into the insertion opening 28.

Further, a paper output tray 29 is provided at the bottom of the vertical portion 5 of the main body 1.
is provided.

During image formation, the original placed on the original platen 61C is irradiated with light from the lamp 7 and scanned, and the reflected light is reflected by W.
, the first to third mirrors 8, 9°, 10 lenses 11, and the fourth mirror 12, the image is formed on the photosensitive drum 24.

The surface of the photosensitive drum 14 is uniformly charged by a charger 15, and an electrostatic latent image is formed by imaging. This electrostatic latent image is sent to the developing device 19 by the rotation of the photosensitive drum 140, and is visualized by being supplied with developer. On the other hand, at this time, the paper P is supplied from the paper feed cassette 21, aligned by the registration rollers 22, and sent between the photosensitive drum 14 and the transfer charger 17 at the appropriate timing. The electrostatic latent image on the photosensitive drum 14 is transferred to a transfer charger 170.
The image is transferred to the paper P by the action, and after being peeled off from the photosensitive drum 14 by the action of the peel charter 18, it is transported to the fixing device 26 by the transport belt 25. Here, the image is fixed, and the paper P is discharged to the paper discharge tray 29 via the paper discharge roller 27.

According to this embodiment, the paper feed cassette 2 is provided on one side of the document table 2 in a direction perpendicular thereto.
The height of the document table 2 can be made smaller compared to the case where the paper feed cassette (a) is set in the lower part of the document tray, and the operator can set all documents while sitting on the chair 31. .

Furthermore, since the paper feed cassette 21 is inserted into and removed from the insertion slot 28 formed in the front face of the vertical part 5 of the apparatus main body 3, the fourth controller also sets the paper feed cassette 2 while sitting on the chair 31. be able to.

Furthermore, since the paper discharge tray 29 can be provided along the side surface of the desk 1, there is no need for a special installation swivel for the paper discharge tray 29.

Note that the present invention is not limited to the above embodiment,
Of course, many modifications can be made within the scope of the gist.

〔Effect of the invention〕

As explained above, in the present invention, since the supply section for the image forming material is provided on one side of the document table in the direction orthogonal thereto,
The height of the document table can be made small, and even if the document table is installed on a desk, the operator can set the document on the document table while sitting on a chair, improving operability.

In addition, since the supply unit is detachably attached to the front of the device, the operator can attach and detach the supply unit while sitting on the chair, resulting in excellent usability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of an electronic copying machine installed on a desk, FIG. 2 is a perspective view thereof, and FIG. 3 shows the inside of the electronic copying machine. FIG. 3... Main body, 6... Document table, 2... Supply unit (paper feeding force cera), P... Paper (image forming object). Applicant's agent Patent attorney Hikohisa Takeshi Suzue

Claims (2)

[Claims] (1) In an apparatus that is equipped with a document table on the top surface of the main body for placing a document, and forms an image of the document on an image forming material supplied from a supplying section, there is a document table on one side of the document table. An image forming apparatus characterized in that the supply section is provided in a direction orthogonal to the image forming apparatus, and the supply section is detachably attached to the front side of the apparatus main body. (2) The image forming apparatus according to claim 1, wherein the apparatus main body is configured in a substantially L-shape.