JPS63256982A - Plate writing recorder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a blackboard recording device capable of recording and displaying images on a blackboard-like recording medium.

(Prior Art) Conventionally, as this type of board recording device, the following have been proposed. As shown in FIG.
An image forming means 103 is provided at a position facing 1.

This image forming means 103 is disclosed in Japanese Patent Publication No. 51-46707, etc., and includes a recording electrode 104 and a recording medium 1.
03 A voltage corresponding to the image information is applied between the conductor 105 on the back surface side from the recording control unit (not shown), and the recording medium 10
2. Toner T as a coloring substance is attached to the surface of the toner to record an image.

After the recording medium 102 on which this image has been formed is moved to the display section 106 and displayed, the toner T adhering to the recording medium 102 is removed by the cleaning means 107 by rubbing or by the action of a magnetic field, and the next recording is performed again. Prepare for.

(Problem to be solved by the invention) However, in such conventional technology, the recording medium 1
Since the image formed on 02 is an unfixed toner image, the toner tends to float and scatter, and an image of another color cannot be recorded over the unfixed toner image. It had

The present invention has been made to solve the above-mentioned problems of the prior art, and its purpose is to fix an image recorded on a recording medium, and then record another image on top of it. The object of the present invention is to provide a board recording device that can perform the following operations.

(Means for Solving the Problems) In order to achieve the above object, the board recording device according to the first invention includes an endless belt-shaped recording medium, and a display unit that allows the recording medium to be movable in a planar manner. and a support means for supporting the recording medium by applying a signal voltage corresponding to the image information.
- a recording means for recording an image by attaching a colored substance to the
A fixing means for fixing the image recorded by the recording means.

Further, the board recording device according to the second invention includes an endless belt-shaped recording medium, support means for movably supporting the recording medium in a display section in a planar manner, and applying a signal voltage corresponding to image information. a first recording means for recording an image by depositing a first colored substance on the recording medium; a fixing means for fixing the image recorded by the first recording means;
a second coloring substance located on the downstream side of the fixing means with respect to the moving direction of the recording medium and applying a signal voltage corresponding to image information to deposit a second colored substance on the recording medium to record an image; a recording device, a second cleaning device for removing an image recorded by the second recording device, and a second cleaning device located downstream of the second cleaning device with respect to the moving direction of the recording medium and cleaning the first recording device. and a first cleaning means for removing an image recorded by the cleaning means.

(Function) In the first invention having the above configuration, a colored substance is deposited on the recording medium by applying a signal voltage corresponding to image information to the recording means, and the recorded information is caused by the deposition of the colored substance. The unfixed image is fixed by a fixing means so that the image is not disturbed, and an image can be written on top of it.

The second invention is one in which another image made of the second colored substance is recorded by the second recording means, superimposed on the image made of the first colored substance recorded by the first recording means and fixed by the fixing means. When deleting an image, the second
The second colored substance is removed by the cleaning means, and then the first colored substance is removed by the first cleaning means, so that the first and second colored substances are not mixed together after removal. This is what I did.

(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 first invention. In the figure, reference numeral 1 denotes a recording medium formed in the shape of an endless belt, which is wound around a pair of rollers 2 and 3 that are arranged vertically opposite each other. 3, it is movably supported in a planar manner.

This recording medium 1 is driven in the direction of the arrow during image formation. At the lowest position of the circulation path of the recording medium 1, that is, at a position facing the roller 3, there is a recording means 6 for depositing toner 9 as a colored substance on the recording medium 1 according to image information and recording an image. It is arranged. Note that 5 in the figure is a toner container containing toner 9.

The recording means 6 employs a so-called magnetic stylus system known from Japanese Patent Publication No. 51-46707. In other words, the principle is as shown in Figure 2.
A cylindrical magnet 8 is rotated within the non-magnetic cylinder 7, and conductive magnetic toner 9 colored black or the like is conveyed on the non-magnetic cylinder 7, and is densely distributed on the non-magnetic cylinder 7 along the axial direction. It passes over the arrayed needle-shaped recording electrodes 10 made of magnetic material. Thus, a signal voltage according to the image information is applied between the recording electrode 10 and the conductive layer 12 of the recording medium 1, which is composed of the insulating layer 11 on the front side and the conductive layer 12 on the back side, and the portion to which the voltage is applied is The toner 9 is applied only to the recording medium 1 to form an image.

Image information to be displayed is applied as an electrical signal to the recording electrode IO by the recording control unit 13.

Further, in this embodiment, the image recorded on the recording medium 1 is configured to be fixed onto the recording medium 1 by a fixing roller 14 serving as a fixing means. The fixing roller 14 is a rigid roller whose surface is plated with chrome, and the roller 3 that supports the recording medium 1 has an elastic body coated on the outer periphery of a cylindrical metal body. The pressurized state is flexible.

In this embodiment, the roller 3 is made of urethane rubber (hardness 95
In addition to rubber materials, cotton and resins such as high-density polyethylene can be used as this type of elastic body. Further, in this embodiment, a pressure fixing toner having a general working pressure of about 25 kg/crs in linear pressure is used, and in reality, a longitudinal line is formed between the fixing roller 14 and the support roller 3 of the recording medium 1. Approximately 1 at pressure
A pressure of 0 kg/cm is applied. This is because the image is not completely fixed on the recording medium l for the purpose of use, but is fixed to an extent that is stable against writing with a felt-tip pen or the like and to an extent that can be removed by a cleaning means.

In this embodiment having the above configuration, images are recorded and displayed in the following manner. First, recording medium 1
While moving at a predetermined speed in the direction of the arrow shown in Figure 1,
A signal voltage (for example, +40 V) corresponding to image information is applied between the recording electrode 10 and the conductive layer 12 of the recording medium 1, and the electric field generated thereby induces a charge in the dielectric layer 11 to remove the charged toner. The toner image is recorded by adsorption onto the recording medium 1, and then the toner image is fixed onto the recording medium 1 by the fixing roller 14. Then, this fixed image appears on the display section 14 as the recording medium l moves, and the movement is temporarily stopped here. Therefore, the user can not only view the recorded image on the blackboard-like display section 4, but also freely record (write) other images on the image using a felt-tip pen or the like. .

Note that after this, images that are no longer needed are removed by the cleaning means 15 as the recording medium 1 is moved.

As explained above, in this embodiment, even if another image is recorded on top of the fixed image using a felt ben or the like,
It does not disturb the image below.

Although this embodiment shows a case where pressure fixing is performed using a pressure fixing toner, the present invention is not limited to this, and a heating type fixing roller may be used by using a heat fixing toner. In this case, temperature control means commonly used in copying machines can be used to control the temperature of the fixing roller.

FIG. 3 shows another embodiment of the board recording device according to the first invention, and the same components as those in the embodiment of FIG. 1 are denoted by the same reference numerals. In addition to the recording means 6 (hereinafter referred to as the first recording means), the apparatus is equipped with a second recording means 6' on the downstream side of the fixing roller 14 with respect to the moving direction of the recording medium 1.

This second recording means 6' has the same configuration as the first recording means 6, and the recording controller 13' applies an electric current between the needle-shaped recording electrode 10' and the conductive layer 12 of the recording medium l. The toner 9' is deposited on the recording medium 1 in accordance with the signal voltage, and an unfixed toner image can be recorded. In this case, if the toner 9' is a different color from the toner 9 of the first recording means 6, for example, the toner 9 is a black toner and the toner 9' is a red toner, a multicolor image can be formed on the recording medium 1. It should be noted that the configuration and operation other than those described above are the same as those of the embodiment shown in FIG.

FIG. 4 shows still another embodiment of the first invention, and the same components as in FIG. 3 are denoted by the same reference numerals. The image recorded by ' is configured so that it can be fixed by a fixing roller 14'. With such a configuration, in this embodiment, it is possible to write another image with a felt-tip pen or the like over the multicolor image. The structure and operation other than those described above are the same as those of the embodiment shown in FIG. 3 described above, and therefore their explanation will be omitted.

FIG. 5 shows an embodiment of a board recording device according to the second invention, and this embodiment has a second cleaning means 15 in addition to the structure of the embodiment shown in FIG. 3 of the first invention. It consists of being equipped with '. Therefore, in this embodiment, the same components as those in the embodiment shown in FIG. 3 of the first invention will be described with the same reference numerals. here,
The second cleaning means 15' is disposed downstream of the cleaning means 15 with respect to the moving direction of the recording medium l.
The toner 9 deposited on the recording medium l by the recording means 6' of
' is removed. This second cleaning means 15'
is constructed by disposing a magnet 15a' inside a container 15b'' via a non-magnetic plate 150'.
The surface magnetic flux density of 5a' is 600 to 900 Gauss, and it is composed of three poles, and the distance between the nonmagnetic plate 150' and the surface of the recording medium 1 is 3007 J, m''1 mm. The toner 9' of the means 6' is a magnetic low-resistivity component toner.Even if the image formed by the first recording means is rubbed by the second cleaning means, the first toner 9'
Since the toner is fixed, color mixing and image disturbance do not occur. Therefore, during display, the first toner 9 is fixed, but the second toner 9' remains unfixed. In this way, after the image is developed and displayed using the two-color developer, during cleaning, the unfixed toner 9' is first removed by the second cleaning means 15'' by the rubbing force of the toners with each other using the binding force of the magnetic force. Cleaning is performed.At this time, due to the toners rubbing against each other, the toner 9 fixed on the recording sheet is not cleaned, but only the magnetic toner 9' is removed and stored in the container 15b'.Next, the cleaning means [ 5 (hereinafter referred to as the first cleaning means) removes the fixed first toner 9 by rubbing the recording medium 1 with a rubber blade with a stronger sliding force than the second cleaning means 15''. It is stored in the container 15b in preparation for the next recording.

That is, in this embodiment, two cleaning means are used to erase the unfixed toner 9' with weak rubbing (by magnetic force) in the first cleaning in the moving direction of the recording medium l, and to erase the unfixed toner 9' temporarily in the next cleaning. In order to erase the fixed toner 9, it is erased using a cleaning means having a stronger sliding force such as a blade.

As described above, by separating the toner 9 of the first recording means 6 and the toner 9' of the second recording means 6' during cleaning, the toners from the containers of the cleaning means are collected and used again for development. can do. It should be noted that the structure and operation other than those described above are the same as those of the embodiment shown in FIG.

Further, in the above embodiment, a case where two recording means are provided has been described, but the first invention and the second invention are not limited to this, and three or more recording means may be provided. .

Further, in the embodiment shown in the second invention, the second cleaning means 15' is described as using magnetic force, but the present invention is not limited to this, and it is also possible to use means using magnetic force due to the action of air force or electric field. It is possible to use any cleaning method as long as it does not remove the fixed image.

(Effects of the Invention) The first and second inventions have the above-described configuration and operation, and by fixing an image recorded on a recording medium, another image is recorded or written in a superimposed manner on top of the image. This has the effect of making multicolor display possible. Furthermore, in addition to the above-mentioned effects, the second invention has the advantage that the toners of a plurality of colors once used for recording an image can be collected separately and reused, which is economical.

[Brief explanation of drawings]

1 to 4 show a board recording device according to the first invention, in which FIG. 1 is a sectional view showing an embodiment of the invention, FIG. 2 is a diagram explaining the principle, and FIG. A cross-sectional view showing the top example of
FIG. 4 is a sectional view showing still another embodiment, and FIG. 5 is a sectional view showing a second embodiment.
FIG. 6 is a sectional view showing an embodiment of the board writing apparatus according to the invention, and FIG. 6 is a sectional view of a conventional example. Explanation of symbols l...Recording medium 2.3...Roller (supporting means) 6...Recording means (or first recording means) 6'...Recording means (or second recording means) 9 ... Toner (colored substance or first colored substance) 9'... Toner (second colored substance) 14.14'... Fixing roller (fixing means) 15...
Cleaning means (or first cleaning means) 15'...Second cleaning means FIG. 7(X) Tin I) N T 206- eyes'! , 1707

Claims (2)

[Claims] (1) An endless belt-shaped recording medium, a supporting means for movably supporting the recording medium in a display section, and a colored substance applied to the recording medium by applying a signal voltage corresponding to image information. What is claimed is: 1. A board recording device comprising: a recording means for recording an image by adhering the recording means; and a fixing means for fixing the image recorded by the recording means. (2) An endless belt-shaped recording medium, a supporting means for planarly and movably supporting the recording medium in a display section, and a first a first recording means for recording an image by depositing a colored substance thereon; a fixing means for fixing the image recorded by the first recording means; and a downstream side of the fixing means with respect to the moving direction of the recording medium. a second recording means located at , which records an image by depositing a second colored substance on the recording medium by applying a signal voltage corresponding to the image information; a second cleaning means for removing an image; and a first cleaning means located downstream of the second cleaning means with respect to the moving direction of the recording medium and removing the image recorded by the first recording means. A board recording device characterized by comprising: