JPS60128771A - Image reader of copying machine - Google Patents

Abstract

PURPOSE:To minimize the space of a reader and to make a shunting mechanism of an optical mirror unnecessary by providing the image reader at the rear face part of a belt photosensitive body, making one part of the photosensitive body transparent, and reading the image passing through the transparent part at the time of reading. CONSTITUTION:A transparent sheet member 2 is arranged at the one part of a belt photosensitive body 1 as shown in the figure, and both ends are seamed to an end part 3 of the photosensitive body. A reader 4 is arranged at the inside face of the photosensitive body 1 by approximating a light receiving part 5 to the image formation part of the photosensitive body 1. In the normal copy mode, the transparent part 2 is timely controlled so that it will position at the outside of the image area. In the image reading mode, the member 2 stops at the optical image formation part after moving since the optical scanning image is read by the device 4. After that, the optical scanning is executed, and the original picture can be read by the light-receiving part 5 which is in contact with the rear face of the member 2.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an image reading device for a multifunction copying machine equipped with a copying machine and a facsimile or printer function (1.Related to 3. [Prior Art] Office automation technology With the development of technology, it is being considered that conventional copying machines can be used not only as a standalone unit, but also as a composite model with facsimile and printer functions.For example, a long image sensor
There is a concept to integrate the function of a conventional facsimile machine, which uses a fax machine to read images, into a copier. When used as a copying machine, the light reflected by the optical mirror in the image projection optical path is irradiated onto the photoreceptor, but when used as a facsimile machine, the image reading device (long In order to project the image onto the image sensor), the optical mirror was retracted to open the optical path.

However, it has the disadvantage that it cannot be made smaller because it requires space other than the photoconductor (image reading device) of the copying machine, and that the mechanism is complicated because the optical mirror must be retracted.

[Purpose of the invention]

The present invention has been made in order to eliminate the above-mentioned defects (second), and an object of the present invention is to provide an image reading device for a copying machine that minimizes the space of the image reading device and eliminates the need for an optical mirror retraction mechanism. do.

[Structure of the invention]

According to the present invention, an image reading device is provided on the back side of the belt photoreceptor of a copying machine using a belt photoreceptor, a part of the belt photoreceptor is made transparent, and when reading an optical image, the image is read through the transparent portion. It is meant to be read.

〔Example〕

Hereinafter, the present invention will be explained in detail based on examples.

In Fig. 1, (1) is a belt photoreceptor on which a flexible photosensitive material is formed into a belt shape, onto which (2) the original image on the original table of the copying machine is projected and a latent image is formed. form.

A part of this belt photoreceptor (two transparent sheet members (2) is arranged as shown in the figure, and its both ends are adhesively seamed to the end portion (3) of the belt photoreceptor. The inner surface of this belt photoreceptor (1) is An image reading device (4) of two elongated image sensors is arranged so that its light receiving surface (5) is close to the imaging surface (=proximity) of the belt photoreceptor (1).

(6) and (7) respectively show the charger and developing roll of the copying machine. The original image is reflected by an optical mirror (8) and irradiated onto the belt photoreceptor. In the normal copy mode, the transparent part (2) of the belt photoreceptor is positioned outside the image area, that is, in the inter-image area (because the timing is controlled, the original image on the copying machine is placed in the transparent part (2)). will not be irradiated.

However, in an image reading mode such as a facsimile transmission mode, the transparent sheet member (2) of the belt photoreceptor scans the optical image in order to use the image reading device (4) to read the optically scanned image of the document on the platen of the copying machine. Imaging unit (after moving 2)
Stop. Thereafter, the original is optically scanned, and the original image is read by the light receiving surface (5) of the image reading device (4) that is in contact with the back surface of the transparent sheet member (2).

The images read by the image reading device (4) are sequentially sent out as facsimile signals and sent to a distant place through a line (not shown).

The signal read by this image reading device (4) may be simultaneously recorded on the belt photoreceptor (1) by a recording device (not shown) as a printer signal, or it may be recorded by another recording device. You may also press C to make it happen.

〔Effect of the invention〕

As explained above (2. The present invention involves installing an image reading device inside the belt photoconductor of a copying machine using a belt photoconductor, and when reading an image (2. Since the image reading device is a reading device, there is no need to perform a complicated retracting operation of the optical mirror, and the space required for the image reading device is also small, making it possible to provide a simple and compact multifunction copying machine.

[Brief explanation of the drawing]

The figure is a side view of one embodiment of the present invention. Ladle explanation (1)... Belt photoreceptor (2)...
Transparent sorting member (5)... Image reading device
(8)...Optical mirror special d! ``Applicant: Fuji Xerox Co., Ltd. Agent: Tomohiro Donakamura, Patent Attorney: Katsuo Naruse/

Claims (1)

[Claims] In a copying machine using a belt photoreceptor, an image reading device is provided on the back side of the belt photoreceptor, and a part of the belt photoreceptor is scanned with a light image from a transparent optical scanning system by the image reading device (()). An image reading device according to Copy 1, characterized in that when reading from two directions (= reads an optical image through a transparent portion of the belt photoreceptor).