JPS5962878A - Color recorder - Google Patents

Abstract

PURPOSE:To perform the color recording onto the recording form of an ordinary paper with a small-sized and simple mechanism, by recording toner images of respective color components on the recording form at a time after forming them while fixing temporarily toner images on a base material. CONSTITUTION:An electrostatic latent image corresponding to a color signal is formed on a drum 1 by an electrostatic latent image writing mechanism 2. This latent image is developed with a toner corresponding to the color signal, and the toner image is heated by a heating mechanism 4 and is fixed temporarily onto the drum 1. The process where a toner image corresponding to another color signal is fixed temporarily onto the drum 1 is repeated by the number of color components to form all color images, and thereafter, a recording form 5 is brought into contact with the drum 1, and it is heated to melt toner images to transfer and fix them. A developing machine 3 consists of four developing parts 3B, 3M, 3S, and 3Y of black, magenta, cyan, and yellow independent of one another, and electrostatic latent images are formed by an ion current control-type writing mechanism 2 which is superior in controllability of electric charge density and has a high allowance of the precision of the length between an electrode of the drum.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a color recording device having a small size, simple mechanism, and high recording speed.

Conventional recording devices of this type irradiate a photosensitive drum with a source for each color component to form an electrostatic latent image, then develop it with toner corresponding to the color component, and transfer it to recording paper. Since the above-mentioned process is repeated a necessary number of times to perform recording, there are disadvantages in that a high degree of viscosity is required for the positioning accuracy of the paper, and the apparatus is complicated and expensive.

In order to eliminate these drawbacks, this invention forms an electrostatic latent image on a body such as a body drum, and then develops it.
The process of temporarily fixing the toner image on the drum with heat is repeated a necessary number of times, and then the toner image on the drum is transferred and fixed onto the recording paper using heat to perform recording. The present invention will be explained in detail below with reference to the drawings.

Figure ii1'41 is a diagram showing an embodiment of the present invention.

1 is a drum whose surface is insulated, 2 is an electrostatic latent image writing mechanism, 3 is a developing machine, 4 is a heating mechanism such as an infrared wafer heater, 5 is a recording paper, and 6 is a fixing device such as a heat roll. A heating mechanism and 7 are a cleaning mechanism.

To operate this, an electrostatic latent image corresponding to a color signal is formed on the drum 1 by an electrostatic latent image writing mechanism 2. next,
The silent latent image is developed with toner corresponding to the miswritten color signal. Next, the toner image on tram 1 is heated+a+784
It is heated and temporarily fixed on the drum 1.

Next, similarly, a toner image corresponding to another color signal is transferred to the drum 1.
Repeat the process of temporary fixing on top as many times as necessary, that is, the number of force and ra components. All power on drum 1.

After the color image is formed, the recording paper 5 is brought into contact with the drum 1, and the fixing heating mechanism 6 heats the recording paper 5 to melt the toner image on the drum 1 for recording, and the above steps are repeated.

Here, the developing device 3 includes four independent developing sections 3B, 3M, and 3S for black, magenta, cyan, and yellow.

4. It consists of 3Y, and as it rotates, it touches the drum 1 one by one.4. The developing sections 3B, 3M, and 38.3Y can be selected.

Note that when recording in monochrome, the VC forms an electrostatic latent image on the drum 1, then develops it with toner, and temporarily prints it on the drum 1 with infrared rays from the heating mechanism 4. Recording is performed by heating and transferring and fixing the image onto the recording paper 5 using a fixing heating mechanism. Further, the drum 1 may have a base body of other shapes.

The formation of an electrostatic latent image is achieved by using ion flow, which has excellent charge density controllability and has a high precision tolerance for the distance between the electrode and the drum.
This is performed by a 1jp electric latent image writing mechanism 2 of the Ta model.

Figure 2 shows the ion flow controlled latent image 2.
Show details. In this figure, 21 is a corona yoke, 22 is an ion flow focusing electrode, 23 is polarization for controlling ion flow on/off, 24 is a voltage generation circuit, and 25.26 is a power source.

To operate this, apply a high voltage to the corona wire 21,
Corona ions are generated, the ion flow convergence electrode 22 focuses the corona ions, and the ion flow on/off control electrode 23 '! The flow of corona ions is controlled by applying a pulse voltage from the tEE generation circuit 24, and the drum 1
An electrostatic charge image is formed on the surface.

Note that the ion flow focusing electrode 22 is provided to focus corona ions and increase the recording speed, and may be omitted in an apparatus with a slow recording speed.

As explained above, according to the present invention, the toner image is repeatedly developed while being temporarily fixed on the substrate.

After forming the toner image of the Rani component, the toner image can be transferred and fixed onto the recording paper at one time and recorded, so there is no color difference. less power. It has the advantage of being able to perform color recording on plain paper using a compact and simple mechanism.

[Brief explanation of the drawing]

Figure 1 shows an embodiment of the present invention. Figure 1.82 shows details of an ion flow control type electrostatic latent image writing model 4'G.
It is a composition diagram. In the figure, 1 is a drum, 2 is an electrostatic latent image writing mechanism, 3 is a developing device, 4 is a heating mechanism, 5 is a recording paper, 6 is a heating mechanism for fixing j), and 7 is a cleaning mechanism.

Claims (1)

[Claims] A device for recording using powder electrostatic force, which includes a substrate with an insulating surface, and forms electrostatic latent images of each color component on this substrate by controlling ion flow. an electrostatic latent image writing mechanism, a developing device that causes toner of each color component to adhere to each electrostatic latent image, and a toner image on the substrate to be temporarily fixed. It consists of a heating mechanism and a fixing heating mechanism that transfers the temporarily fixed toner image onto the recording paper.
After forming the image, it is developed in the developing machine, then heated and temporarily fixed by the heating mechanism, and after all the color components have been temporarily fixed, it is transferred to the self-recording paper by the fixing heating mechanism. A color recording device characterized by fixation.