JPS62127866A - Plate writing copying device - Google Patents

Abstract

PURPOSE:To make it sufficient to use the minimum one piece of reflecting mirror, and to miniaturize a body device by illuminating the picture information of a transparent plate writing surface from a write side by an illuminating light source, and reading it by the lens of its reverse side. CONSTITUTION:In case of copying the picture information written in a plate writing member 1, the plate writing member 1 rotates a driving roller 10 by a switch which is not shown in the figure, and moves it to a part to be exposed 6, and the information is read by the transmission and illumination from its surface by an illuminating light source 7. To put it concretely, it is reflected by a reflecting mirror 3 placed so that its long side direction is arranged in parallel to an information writing part 9 against the plate writing member 1, on the reverse side of the picture information, projected by an image forming lens 4, and a slit exposure is executed to a rotary electrophotographic photosensitive body 5.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application of the Invention) The present invention relates to a board 4 copying device for copying image information drawn on a board using an electrophotographic device.

(Prior art) Conventionally, in order to copy the image information of a document using a 1km photographic device, the board was illuminated by reflection, the reflected light was read, and a slit was projected onto the electrophotographic photoreceptor using a lens. and due to constraints on the placement of the photoreceptor.

An even number of two or more reflecting mirrors was required. In addition, these reflecting mirrors are generally placed at nine positions away from the board, which requires an increased number of parts and tends to increase the size of the device. Furthermore, since gold was used for reflective illumination, the illumination light source had to have a high fluoride content.

(Problems to be Solved by the Invention) The present invention reduces the number of suE products compared to the above-mentioned conventional example, and at the same time effectively utilizes space to reduce the overall IB (iB) of the entire device, and further reduces illumination light. Efficient use makes it possible to reduce the wattage of the light source.

(Means for solving the problem) The board copying apparatus of the present invention includes a translucent board member and an illumination light source disposed close to the recording side of the board member.

A reflecting mirror is disposed on the opposite side of the illumination light source to the translucent board of the illuminated part of the board member, and the long side direction is parallel to the board. It exposes an information sound electrophotographic photoreceptor.

(Embodiment) FIG. 1 is an 8+ diagram for clarifying the main parts of an embodiment of the present invention, and the image information on the surface of the board member 1 made of transparent and flexible metal is the illumination light source 21 reflecting mirror 3. ．． An image is formed on the electrophotographic photoreceptor 5 by the optical system of the lens 4.

In the figure, 6 is an exposed part, 7 is an outer frame of an illumination light source, 8 is a board pre-coating/shading plate, and 9 is an information entry part.

In the above-mentioned a formation, writing of image information on the transparent board 1 is done using a felt pen or the like at the information writing section 9 corresponding to the board 8.

When copying the image information written on the writing board member 1.

A switch (not shown) causes the board member 1 to move to the drive roller 10.
While rotating the illumination light source 7 and moving it to the exposed area 6,
The information is read from the information table by transillumination. Specifically, an electrophotographic photosensitive member is placed on the back side of the image information with the long side of the board member 1 parallel to the information entry section 9, reflected by nine reflecting mirrors 3, projected by an imaging lens 4, and rotated. The body 5 is exposed to slit light.

In this embodiment, the reflecting mirror 3 is composed of one reflecting mirror, but if an odd number of reflecting mirrors are used, the image information on the board will not be a mirror image and will be output onto the transfer material.

Incidentally, along the rotation path of the photoreceptor 5, a charger for the photoreceptor, a developer, a transfer charger, and a cleaning device are provided. Then, a transfer material is supplied to the transfer position, and the transfer material that has been transferred is discharged via a fixing means. Since the image formats obtained by these electrophotographic VC methods are well known,
Detailed explanation here will be omitted.

Next, the imaging lens 4 of the above embodiment may be provided within the electrophotographic device, or may be provided separately in the board writing device. When a VC electrophotographic device has a lens for copying, it is possible to use the lens in this device for other documents.
It can be used to form an image on a photoreceptor. Therefore, it is possible not only to copy for board writing but also to copy other manuscripts.

In the above embodiment, the board member utilizes a transparent film of ethylene terephthalate.

Therefore, the fixed underlay 8 is conveniently made of a white or light-colored board on the display side, and the narrow side has been treated to reduce the friction between it and the writing board member 1. However, this board member does not have to be limited to a transparent film.

It may be a transmissive-diffusive film of white or light color such as milky white with good original transmittance, or it may be formed by mixing it into a transparent synthetic resin film.

That is, if the image information written on the writing board member 11C can be read in shape by a light source, it can be used as a writing board member.

FIG. 2 is a cross-sectional view of the device of another embodiment, in which the board member 11i has an end shape and is wound up and down in the vertical direction;
ing. The materials used and the example of dispersion follow those of the apparatus shown in FIG.

The member 11 is wound and supported by upper and lower support shafts 12.13,
When moving along the underlay 19 in the direction of the arrow mark 14, the member 1
The image information of 1 is the light source 15, the reflecting mirror 16, and the lens I.
Electrophotographic photoreceptor 18 rotating in the direction of the LK rainbow arrow rliJ
exposed to light.

(Effects of the Invention) The configuration of the present invention as explained above uses the illumination light source to illuminate the transparent board, so it is possible to reduce the wattage of the illumination light source. By illuminating all the image information on the document from the writing side and reading it with the lens on the back side, at least one reflection board is required, the space inside the arrangement can be used effectively, and the main unit can be downsized.

[Brief explanation of drawings]

Figure 1 is an example of the present invention! ! FIG. 2 shows a sectional view of another embodiment of the device. In the figure, 1 and 11 are translucent board members, 2 and 15 are illumination light sources, 3 and 16 are reflecting mirrors, 4 and 17 are lenses, and 5 and 1
8 indicates a photoreceptor.

Claims (1)

[Claims] (1) In a board copying device that copies graphic information drawn on a board using an electrophotographic device, a translucent board member, an illumination light source placed close to the recording side of the board member, and a transparent part of the board member to be illuminated are used. A reflecting mirror is disposed on the opposite side of the optical board from the illumination light source with its long side parallel to the translucent board,
A board copying device that exposes image information on a board to an electrophotographic photoreceptor.