JPS59102256A - Color recording device - Google Patents

Abstract

PURPOSE:To execute color recording which scarcely causes a color shift by a small-sized and simple mechanism by fixing temporarily a toner image, executing a development repeatedly, forming the toner image of each color, and thereafter, transferring it on a recording paper at the same time. CONSTITUTION:Electrostatic charging is executed onto a drum 1 by a corona charger 2, an electrostatic latent image is formed on the drum 1 by a light irradiating mechanism 3 in accordance with a color signal, and by a developing machine 4, it is developed by use of a toner corresponding to the color signal. Subsequently, it is heated by a heating mechanism 5 and a toner image is fixed temporarily onto the drum 1. In the same way, said operation is executed with respect to other color signal, too, all color images are formed on the drum 1, and thereafter, a recording form is made to contact with the drum 1, the form 6 is heated by a fixing heating mechanism 7, and the toner image is melted, and transferred and fixed on the form 6.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides color recording "Kl!!!-" which enables high-speed color recording with a small and simple mechanism.
L64 O''''''''° Rice A conventional recording device of this type irradiates a source for each color component onto a sensitive f1 ram to form an electrostatic latent image, and then irradiates the toner corresponding to the color component. , each toner image was transferred to recording paper, and the process was repeated the necessary number of times to perform recording.
The drawbacks are that high precision is required for positioning the paper to prevent color misregistration, and that the device is complicated and expensive.

In order to eliminate these drawbacks, this invention forms an electrostatic latent image corresponding to each color component on a substrate such as a photoreceptor drum, then develops it, and temporarily fixes the toner image on the drum by heat. This process is repeated the required number of times, and then the toner image on the drum is transferred and fixed onto the recording paper by heat, and recording is performed. The present invention will be explained in detail below with reference to the drawings.

The drawing shows an embodiment of the present invention, in which 1 is a drum whose surface is photoconductive, 2 is a copier charger, 3 is a light irradiation mechanism, 4 is a developing device, and 5 is an infrared heating device. A heating device such as a heater, 6 a recording paper, 7 a heating mechanism for fixing such as a heat roll, and 8 a cleaning mechanism.

To operate this, the drum 1 is uniformly charged by a corona charger 2, and then an electrostatic latent image is formed on the drum 1 by a light irradiation mechanism 3 that irradiates light in accordance with the color signal. . Next, the electrostatic latent image is developed by a developer Ia4 using toner corresponding to the written color signal. Next, the toner image on the drum 1 is heated by the heating mechanism 5 and temporarily fixed on the drum 1.

Next, similarly, a toner image corresponding to another color signal is transferred to the drum 1.
The process of temporary fixing on top is repeated the necessary number of times, that is, the number of color components. After all the color images are formed on the drum 1, the recording paper 6 is brought into contact with the drum 1, and the fixing heating mechanism 1 heats the recording paper 6, melting the toner image on the drum 1 and applying it to the recording paper 6. Transfer and fix. Next, the toner fibers remaining on the drum 1 are cleaned using a cleaning machine s8 such as a knot, and the above process is performed again.

Here, the developing machine 4 consists of four independent developing sections 4B, 4M, and 48° 4Y for black, magenta, cyan, and yellow. 4Y can be selected.

Note that when recording in a single color, an electrostatic latent image is formed on the drum 1, then developed with toner, and the infrared rays of the heating mechanism 5 are used to form an electrostatic latent image on the recording paper 6 without temporarily fixing it on the drum 1. Recording is performed by transferring and fixing the image by heating it with the fixing heating mechanism 7.

If amorphous silicon is used, which is excellent in terms of
(The assumed adhesion of toner is 80-9.
No process at 0℃, transfer/fixing to paper is 90~IOQ℃
It can be done with

Furthermore, the light irradiation mechanism 3 may be a light scanning mechanism using seven LEDs, a semiconductor laser beam scanning mechanism, a gas laser beam scanning mechanism, or a mechanism in which the reflected light from the copy document is filtered in accordance with the color of the toner. good.

As explained above, according to the present invention, a toner image is temporarily fixed on a substrate and developed repeatedly to form a toner image of each color component, and then the toner image is transferred and fixed onto a recording sheet at once to perform recording. This allows for compact color recording with less color shift.

It has the advantage that it can be performed on plain paper recording paper using a simple mechanism.

[Brief explanation of drawings]

The drawing shows one embodiment of the present invention and is a schematic configuration diagram. In the drawing, 1 is a drum, 2 is a copier charger, 3 is a light irradiation mechanism, 4 is a developing machine, and 5 is a heating mechanism. , 6 is a recording paper, 7 is a heating mechanism for fixing, and 8 is a cleaning mechanism.

Claims (1)

[Claims] 5 devices that perform color recording using electrophotographic technology include a substrate with a photoconductive surface, a charging mechanism that uniformly charges this substrate with corona, and a device that corresponds to each color component on this substrate. a light irradiation mechanism that forms an electrostatic latent image of each color component by irradiating it with light; a developing device that attaches toner of each color component to each electrostatic latent image; It consists of a heating mechanism for temporarily fixing and a heating mechanism for fixing that transfers the temporarily fixed toner image onto the recording paper, and after forming an electrostatic latent image on the substrate by the light irradiation mechanism for each color component, The color is developed by the developing machine, then heated and temporarily fixed by the heating machine rJ, and after the temporary fixing of all color components is completed, the color is transferred and fixed onto the recording paper by the fixing heating mechanism. Recording device.