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Image forming device

An image and exposure device technology, which is applied in the fields of electrical recording technology using charge graphics, equipment for electrical recording technology using charge graphics, and electrical recording technology, and can solve problems such as cost and image quality issues

Inactive Publication Date: 2008-01-16
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this structure, the backside exposure method of exposing the exposed part from the inside of the photoreceptor drum is used, so a transparent base material is used as the material of the photoreceptor drum, or a transparent electrode is used as the electrode, and a special structure becomes necessary. There are problems in cost and image quality

Method used

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Examples

Experimental program
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Embodiment Construction

[0031] Embodiments of the present invention will be described below with reference to the accompanying drawings. It should be noted that in all the following drawings, the film thicknesses and dimensional ratios of the respective constituent elements are appropriately different in order to facilitate viewing of the drawings.

[0032] FIG. 1 is a schematic perspective view showing an image forming apparatus 1 according to an embodiment of the present invention. This image forming apparatus 1 has a photoreceptor drum 2 serving as an image carrier in the vicinity of a moving path of a transfer medium 15 . Around the photoreceptor drum 2, along the rotation direction of the photoreceptor drum 2 (indicated by arrows in the figure), a charging device 3, an exposure member 4, a developing device 7, a pressing device 8, a fixed corona device 9, Transfer roller 10 , cleaning device 11 and static elimination device 12 . Among them, the transfer roller 10 and the photoreceptor drum 2 s...

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Abstract

The present invention provides an image forming device of the printing head, and the image forming device has the advantages of ensuring sufficient exposure amount even if the light source can not radiate above the necessary condition, long service life and excellent picture quality. The image forming device of the invention includes the following components: a photoconductor drum (2) which is provided with a given rotation axis (29); an exposure device (6) which form electrostatic latent image on the surface of the photoconductor drum (2) by exposing the photoconductor drum (2); a medium supplying component (7) which forms a layer (53) which is composed of the transparent liquid material between the exposure device (6) and the photoconductor drum (2) by supplying transparent liquid material (52) to the surface of the photoconductor drum (2); and a developing device (7) which develops the electrostatic latent image on the surface of the photoconductor drum (2) with the liquid developer (73) containing the toner particles.

Description

technical field [0001] The present invention relates to electrophotographic image forming apparatuses such as copiers and printers, and more particularly to a wet type image forming apparatus that develops an electrostatic latent image with a liquid developer such as liquid toner. Background technique [0002] A line printer (image forming apparatus) is known as a printer utilizing an electrophotographic method. In this line printer, devices such as a charger, a line-shaped print head (line head), a developing device, and a transfer device are disposed close to the peripheral surface of a photoreceptor drum serving as an exposed portion. That is, on the peripheral surface of the photoreceptor drum charged by the charger, an electrostatic latent image is formed by the selective light-emitting operation of the light-emitting element provided on the line head, and the latent image is developed with the toner supplied from the developer. , Transfer the toner image to paper with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/10G03G15/00
CPCG03G15/04G03G15/10G03G15/04072G03G15/06G03G15/02G03G15/00
Inventor 柳原弘和
Owner SEIKO EPSON CORP
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