JPS59211075A - Display device provided with printer - Google Patents

Abstract

PURPOSE:To display a high quality picture by electrostatic recording, and also to execute easily copying by forming an electrostatic latent image inverting left and right on the outside of a transparent dielectric sheet made adjacent to develop. CONSTITUTION:A transparent dielectric sheet 11 extended to rollers 2, 3 is made parallel and adjacent to each other by rollers 2', 3'. A left and right inverted electrostatic latent image C formed on the sheet 11 by a write electrode 4 is developed by a developing device 5 to obtain a toner visible image D. The image D is an inverted image, but when it is seen from a display part 8, namely, the direction as indicated with an arrow of a thick line, it comes to be seen from the rear side of the image D through two transparent sheets 11 to obtain a display picture of an erect image. In case of obtaining a copy, the image D is transferred to paper 9 by using a transfer device 10. Since the image D is an inverted image, the transfer image obtains an erect image, and a normal recording.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device with a printer that is capable of high-resolution display and that can easily output a hard copy of the display screen.

Conventionally, as this type of display device, one shown in FIG. 1 has been proposed. That is, in FIG. 1, a dielectric sheet 1 is stretched endlessly between drums 2 and 3, and moves in the direction of the arrow. 4 is a writing electrode such as an electrostatic bottle,
5 is a developing device, 6 is a cleaner such as a dust cleaner, 7 is a static eliminator, and 8 is a display unit viewed from the direction of the bold line arrow.

The operation is to form a normally rotated electrostatic latent image A on the dielectric sheet 1 using the write electrode 4, move the dielectric sheet 1 by rotating the drum 2. Display is performed on the display section 8 by depositing an electrostatic latent image (AK) toner and forming a visible toner image BY. After displaying, after the toner visible image B is scraped off by the cleaner 6,
The static eliminator 7 removes an electrostatic latent image A'? :to erase.

Conventionally, in this type of display device, an endless dielectric sheet 1
Since the structure is such that a normally rotated toner visible image is formed on the outside of the dielectric sheet 1 without using a particularly transparent material, the visible toner image 8 is transferred to the recording sheet S as shown in FIG.
Even if the image is transferred to , only a reversed image can be obtained as the transferred image B'. Therefore, the toner visible image used for display is unchanged.
There was no one that was designed to be used for Dofubee output.

In order to eliminate the above-mentioned drawbacks, this invention comprises an endless dielectric sheet made of a transparent material, forms a visible toner image for display on the outside of the sheet as an inverted image, and allows the toner to pass through the transparent dielectric sheet. The visual image is designed so that a normally rotated image can be obtained on the display section by viewing from the back side (outside the dielectric sheet).
By doing this, the toner visible image transferred to the recording paper becomes a normal rotation image, which can also be used as a printer. The drawings of this invention will be explained below.

FIG. 3 is a configuration diagram showing one embodiment of the present invention, and FIG.
The figure is a partially enlarged view of FIG. 3. In the diagram, 10 is a transfer device, 11 is a transparent endless dielectric sheet, 2',
Reference numeral 3' denotes a drum 4, which is provided to move the parallel portions of the dielectric sheet 11 close to each other. Others are shown in Figures 1 and 2.
Same as shown in the figure.

Next, the operation will be explained. The left-right inverted electrostatic latent image C formed on the transparent dielectric sheet 11 by the write electrode 4 is coated with toner by the developer 5 and becomes a visible toner image. Here, the toner visible image is an inverted image, but as shown in FIG. Since it becomes visible from the back side of the image, a normally rotated display image can be obtained. Furthermore, if a hard copy of the display screen is required, a visible toner image is transferred onto the recording paper 9 using a transfer device 10.

As shown in FIG. 4, since the toner visible image is converted into a reversed image, the transferred image D' on the recording paper 9 becomes a forwardly rotated image, and normal recording cannot be obtained. If a hard copy of the display screen is not required, it is not transferred and the toner visible image D' is printed using the cleaner 6.
& After scraping off, the static electricity is removed by the static eliminator 7.

Here, the drums 2' and 3' are in contact with only both sides of the dielectric sheet 11, and the intermediate portion thereof does not contact the visible toner image, so that it does not affect the visible toner image DK.

As explained above, the present invention uses a transparent dielectric sheet and arranges the parallel parts to be close to each other.
An electrostatic latent image with left and right sides reversed was formed on the outside of this dielectric sheet, and this was developed to become a visible toner image. When you look at the visible image, it appears as a normal image. Then, by transferring with a transfer device, a normal rotation image copy can be obtained.

According to this invention, it is not only possible to display high-quality images by electrostatic recording, but also to easily change the display screen.
・It can output copies and can also be used as a printer.

Furthermore, since it is not a luminescent display like a CRT, it has the advantage of causing less eye fatigue.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a conventional display device, FIG. 2 is a partial perspective view showing an example of transfer recording of a conventional display device, and FIG. 3 is a block diagram showing an example of the present invention. FIG. 4 is a partial perspective view showing an example of transfer recording according to the present invention. In the figure, 2. 2', 3. 3' is a drum, 4 is a write electrode, 5 is a developer, 6 is a cleaner, 7 is a static eliminator, 8 is a display section, 9 is a recording paper, 10 is a transfer device, 11 is a transparent dielectric sheet, and C is a static The electrolatent image, D is the toner visible image. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A transparent, endless dielectric sheet with parallel portions close to each other, a write electrode forming an electrostatic latent image with left and right sides reversed on the outside of the dielectric sheet, and toner particles applied to the electrostatic latent image. a developing device for supplying the toner to obtain a visible toner image on the outside of the dielectric sheet; a display section for displaying the toner visible image as a normal rotation image through the dielectric sheet in parallel portions; 1. A display device with a printer, comprising: a transfer device that transfers a visual image onto recording paper; and a cleaner that removes toner particles on the outside of the dielectric sheet.