JPS6285563A - Electronic copying device - Google Patents

Abstract

PURPOSE:To obtain a recorded picture having the high position accuracy by confirming optically the positioning relation between a recording means and a means which projects pictures on a writing medium. CONSTITUTION:The cuts 14 and 15 are provided at both ends outside the picture area of a slit plate 8 fixed to an electronic copying device main body as the reference mark projecting members. While a recording means 4 positioned and attached mechanically to the copying device has the confirming parts for the projected images of the reference marks at the positions corresponding to the cuts 14 and 15 serving as the reference marks of an incident surface part 13. Then marks 16 and 17 are provided to said confirming part in response to the reference marks. Thus it can be easily confirmed whether the means 4 is positioned at a proper place or not according to the coincidence or discordance between the images of the cuts 14 and 15 of the slit 8 and the marks 16 and 17 respectively. In such a way, the coincidence of positions is secured accurately between the means 4 and a writing medium on a production process or a maintenance/checking mode of the electronic copying device.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a copying device such as an electronic blackboard device that records image information on a writable writing member.

(Prior art) Conventionally, when using a board such as a blackboard for meetings, meetings, etc., in order to save the time and effort of transcribing the contents written on the board one by one into a notebook, etc. A device called an "electronic blackboard" that records image information such as written characters and figures has been proposed and is actually used.

This type of electronic copying device combines a projection means for projecting an image of a writing surface and an electrophotographic recording means for recording the projected image using an electrophotographic method, and both means are mechanically attached to appropriate positions. There is something configured.

(Problems to be Solved by the Invention) However, in the case of such prior art, the positional relationship between the projection means and the electrophotographic recording means and the mechanical attachment are determined by precision. In addition, the writing surface of the above-mentioned "electronic blackboard bag 4" has a large area and the projection means is also large, so it is easy to misalign due to movement of the main unit, etc. Therefore, due to impact during use or long-term use. Even if a positional shift occurs between the projection means and the electrophotographic recording means, there is no way to confirm this, so the positional accuracy between the image to be recorded and the recorded image is extremely poor. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and its object is to be able to optically confirm the positional relationship between the projection means and the electrophotographic recording means. An object of the present invention is to provide an electronic copying device that can obtain highly accurate recorded images.

(Means for Solving the Problems) In order to achieve the above object, the present invention combines a projection means and an electrophotographic recording means, and projects an image on a writable writing medium by the projection means. In the electronic copying apparatus for recording, a reference mark projection member for projecting a reference mark onto the projection means is provided, and a confirmation part for the reference mark is provided on the entrance surface side of the electrophotographic recording means.

(Example) The present invention will be explained below based on illustrated embodiments.

FIG. 2 is a perspective view showing an embodiment of an electronic copying device using a board according to the present invention. In FIG. 4 is an electrophotographic recording means for recording the image on the plate 3; 5 is recording paper on which the image is recorded; and 6 is a discharge tray.

FIG. 1 is a perspective view showing the main parts inside the electronic copying neck main body 1. As shown in FIG. Reference numeral 7 denotes a hair-length sheet made of polyester film or the like forming the plate portion 3, and both ends of the sheet 7 are wound up into a roll. When winding up the sheet 7 on which the image is written on the plate part 3, the image written on the surface of the sheet 7 is illuminated by a fluorescent lamp (not shown) as a light source constituting the projection means, This image is guided through the slit 9 of the slit plate 8, the mirrors io and it, and the projection lens 12 to the incident surface section 13 of the recording means 4. A drum (not shown) is exposed to light, and an image is recorded on recording paper 5 using a known electrophotographic method.

Incidentally, in this embodiment, notches 14 are provided as reference mark projection members for projecting reference marks on both ends of the slit plate 8 outside the image area fixed to the main body l of the electronic copying apparatus.
．． 15 are provided. On the other hand, the recording device 4, which is mechanically positioned and attached to the main body 1 of the L-distribution copying device, has the reference mark at a position corresponding to the notch 14.15 as the reference mark on the entrance surface portion 13. There is a part to check the projected image of the mark. Marks 16 and 17 corresponding to the reference marks are provided as this confirmation part.

Therefore, the notches 14 and 15 provided in the slit plate 8
Depending on whether the image matches the reference mark 16, 17 provided on the entrance surface portion 13 of the recording device 4 or not, it is possible to determine whether the projection device provided in the electronic copying apparatus main body l and the recording device 4 are positioned at appropriate positions. You can easily check whether the Therefore, the above-mentioned positioning can be performed reliably during manufacturing and maintenance inspection of the child copying device, and a proper image can always be recorded.

Note that the reference mark on the electronic copying apparatus main body 1 side may be formed with a light bulb or the like, or may be colored to make it easier to see.

(Effect of the invention) The present invention consists of the following structure and operation.

The positioning of the means for projecting the image of the writing medium-4- and the recording means can be optically confirmed.

The positional accuracy of both can be easily checked, and appropriate images can be recorded at all times.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing essential parts of an embodiment of an electronic copying apparatus according to the present invention, and FIG. 2 is a perspective view showing the same electronic copying apparatus. Explanation of symbols 3...Plate part 4...Recording means 8...Slit plate 9...Slit 10.11...Mirror 12...Projection lens 13...Incidence surface part 1
4.15...Notch 16.17...Confirmation part

Claims (1)

[Claims] In an electronic copying apparatus that combines a projection means and an electrophotographic recording means and projects and records an image on a writable writing medium by the projection means, a reference mark projection member for projecting a reference mark onto the projection means is provided, and An electronic copying apparatus characterized in that a confirmation section for the reference mark is provided on the incident side of the electrophotographic recording means.