JPS62254171A - Plate-writing recording device - Google Patents

Abstract

PURPOSE:To prevent an image from being disordered when drawn on a writing medium and to eliminate hindrance to the cleaning of a coloring material sticking on a recording medium by making the writing medium thick. CONSTITUTION:The writing medium 16 is formed thickly of synthetic resin, rubber, etc., and preferably >=500mum thick and about 200mm at a maximum although a member of this kind is normally 50-200mum. When an image is drawn on the writing medium 16 with a felt pen 29, the writing medium 16 deforms mainly at only a surface part and its reverse surface is neither pressed nor rubbed against the recording medium 1. Consequently, the toner image on the recording medium 1 is prevented from becoming unerasable and being disordered owing to the contact to the recording medium 1.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is capable of displaying an image of a manuscript or the like on a blackboard-like surface,
The present invention also relates to a board writing device that allows a desired image to be written over a displayed image.

(Prior Art) Conventionally, as this type of board recording device, the following have been proposed. This is as shown in Figure 4.
An endless belt-shaped recording medium 102 is wound between a pair of rollers too and tot, and an image forming means 103 is provided at a position facing one of the rollers 101. This image forming means 103 is disclosed in Japanese Patent Publication No. 51-46707, etc., and forms an image by depositing toner on the recording medium 102 according to image information.

Further, on the outer circumferential side of the recording medium 102, a writing medium 104 that is transparent in the form of an endless belt and that can be written on with a felt pen 114 or the like is arranged.
It is wound around rollers 106, 107° 108 so as to overlap the recording medium 102 on the display section 105 on the front side of the apparatus. ”-recording medium 102 or writing medium 10
4 are illuminated by a lamp 11O with a reflective shade 109, and the reflected light image is reflected by a mirror 111.
It is read by the photoelectric conversion element 113 via the lens 112 and recorded by a printer or the like.

(Dark Problems to be Solved by the Invention) However, such prior art has the following problems. That is, the writing medium 104 has a thickness of 50 to
Since it is made of a thin sheet with a thickness of 200 mm, as shown in FIG. Press. Therefore,
The toner 115 attached to the surface of the recording medium 102.

There is a problem in that the adhered toner 115 is pressed against the surface of the recording medium 102, making it difficult to erase it even with a cleaning member. Furthermore, when an image is recorded on the writing medium 104, the writing medium 104 deforms and rubs the surface of the recording medium 102, causing the problem that characters, figures, etc. printed on the recording medium 102-L are disturbed. there were.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and its purpose is to write an image on a writing medium without disturbing the image, and also to ensure that the image does not adhere to the recording medium. An object of the present invention is to provide a board recording device that does not impede toner cleaning.

(Means for Solving the Problems) In order to achieve the objects stated in the following, the present invention includes a belt-shaped recording medium, and a coloring substance is attached to the recording medium according to image information to form an image. means for planarly and movably supporting a recording medium on which an image is formed in a display section; and a transparent and writable writing medium disposed in front of the recording medium in the display section. In the board writing recording device, the writing medium is formed to have a thick wall.

(Function) In the present invention, since the writing medium is formed thick, only the surface side of the writing medium is deformed when writing an image, and the image on the recording medium is not affected.

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

FIG. 1 shows an embodiment of a board recording device according to the present invention. ■ is a recording medium formed in the shape of an endless belt,
The recording medium l is wound around a pair of rollers 2 and 3 that are arranged vertically opposite each other, and the recording medium l is wound around a pair of rollers 2 and 3 that are arranged vertically opposite each other.
It is movably supported in a planar manner. This recording medium 1 is.

It is driven in the direction of the arrow during image formation. A means 6 for forming an image by depositing toner 9 as a coloring substance on the recording medium 1 according to image information is disposed at the lowermost position of the circulation path of the recording medium 1, that is, at a position facing the roller 3. It is set up.

In the figure, 5 is a toner container containing toner 9.

1. The image forming means 6 employs a so-called magnetic stylus system known from Japanese Patent Publication No. 51-46707. That is, as shown in FIG. 3, the principle is that a cylindrical magnet 8 is rotated within a non-magnetic cylinder 7, and a conductive magnetic toner 9 colored black or the like is conveyed over the non-magnetic cylinder 7. , a non-magnetic cylinder 7''- is passed over acicular recording electrodes 10 made of magnetic material densely arranged along the axial direction. Therefore, the insulating layer 11 on the front side and the conductive layer 12 on the back side
A voltage is applied between the conductive layer 12 of the recording medium 1 consisting of the above and the recording electrode 10 according to the image information, and the toner 9 is attached to the recording medium 1 only in the area where the voltage is applied to form an image. .

Image information to be displayed is input from the document reading device 13 and applied as an electrical signal to the recording electrode IO via the storage device 14 or directly by the recording control section 15.

In addition, a writing medium 16 formed in the shape of an endless belt and transparent and capable of writing and erasing with a felt pen or the like is disposed on the outer circumferential side of the recording medium 1.
6 is wound around rollers 17, 18 and 19 so as to be able to circulate. Further, this writing medium 16 is supported in a planar manner by rollers 17 and 18 in the display section 4.

By the way, the writing medium 16 is made of a thick material such as synthetic resin or rubber, and the thickness of this type of member is usually 5.5 mm.
0-200pm, preferably 500pm
It is formed to be more than Lm, and has a maximum thickness of about 20 layers.

Further, a cleaning member 20 is provided near the roller 3 to remove the image on the recording medium 1 and the toner adhering to the back surface of the writing medium 16. The cleaning member 20 removes toner by moving toner spikes formed on the outer periphery of a cylindrical member by magnetic attraction in a rotating brush shape. Further, below the roller 18, an erasing member 21 for erasing an image written on the writing medium 16J- is provided.

Further, on the back side of the recording medium 1, means 22 for reading images on the recording medium 1 and the writing medium 16 is provided. That is, at the reading position which is the closest position between the recording medium 1 and the writing medium 16, there is a lamp 24 with a reflective shade 23 that illuminates the images on both the mediums 1 and 16, and a light image reflected from both the mediums 1 and 16. A mirror 27 is provided to make the light incident on the photoelectric conversion element 26 via the lens 25. The images on the recording medium 1 and the writing medium 16 are read by a photoelectric conversion element 26 as described in Japanese Patent Laid-Open No. 60-164770,
Recorded by printer.

In the figure, 28 is a support plate provided behind the recording medium 1, and 30 is the main body of the apparatus.

In the above configuration, in the board recording apparatus according to this embodiment, image display, addition, etc. are performed in the following manner.

That is, while moving the recording medium 1 at a predetermined speed, a voltage corresponding to image information is applied between the recording electrode 10 and the conductive layer 12 of the recording medium 1, and toner 9 is applied to the surface of the recording medium 1.
is attached, an image is displayed, and the image is stopped on the display section 5. Therefore, the image displayed on the recording medium 1 can be viewed even from a distance via the transparent writing medium 16, and if necessary, in addition to this displayed image, the image displayed on the recording medium 1 can be viewed using a felt-tip pen or the like. ” Second, you can add letters, figures, etc.

By the way, since the writing medium 16 is formed thick, when writing on the writing medium 16 with the felt-tip pen 29, only the surface portion of the writing medium 16 is mainly damaged, as shown in FIG. It will not deform and its back side will press or rub against the recording medium 1. Therefore, it is possible to prevent the toner image on the recording medium 1 from coming into close contact with the recording medium l and becoming impossible to erase, or from disturbing the toner image on the recording medium l.

In the above embodiment, the case where an image is displayed on a recording medium by the so-called magnetic stylus method has been described.
Similarly to the above, a combination of electrophotography and an optical scanning device, electrostatic recording, etc. may be used.

(Effects of the Invention) The present invention has the above-described structure and operation, and when an image is written on a writing medium, the image is not disturbed, and furthermore, the cleaning of the colored substance adhering to the recording medium is not hindered. A board recording device can be provided.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a board recording device according to the present invention, FIG. 2 is an enlarged view of section A in FIG. 1, FIG. 3 is an explanatory diagram showing the image forming principle of the device, and FIG. The figure is a block diagram showing a conventional board writing apparatus, and FIG. 5 is an enlarged view of part B in FIG. 4. Explanation of symbols l...Recording medium 2, 3...Roller 4...
・Display section 6... Image forming means 9... Toner 16... Writing medium 17.18.19
...Roller Figure 1 Figure 3 Cause 5

Claims (1)

[Claims] A belt-shaped recording medium, means for forming an image by attaching a colored substance to the recording medium according to image information, and means for movably supporting the recording medium on which the image is formed in a planar manner in a display section. and a transparent and writable writing medium disposed in front of the recording medium in the display section, wherein the writing medium is formed thick.