Image forming apparatus and image forming method

An image and latent image technology, applied in image forming devices and image forming fields, can solve problems such as difficult control, and achieve the effect of improving precision

Inactive Publication Date: 2010-11-03
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the printing deviation is not periodic, it is difficult to control the positional relationship with respect to each color or the registration of printing on paper.

Method used

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  • Image forming apparatus and image forming method
  • Image forming apparatus and image forming method
  • Image forming apparatus and image forming method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0127] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a diagram showing main components constituting the image forming apparatus according to the embodiment of the present invention. The developing devices 30Y, 30M, 30C, and 30K are arranged below the image forming apparatus with respect to the image forming sections of the respective colors arranged in the central portion of the image forming apparatus, and the transfer belt 40 , the secondary transfer section (secondary transfer A unit) 60, a fixing unit 90, and the like are arranged at the upper portion of the image forming apparatus. In particular, by arranging the fixing unit 90 above the transfer belt 40 , the installation area of ​​the image forming apparatus as a whole can be suppressed. In this embodiment, since the transfer material such as paper that has undergone the secondary transfer in the secondary transfer unit 60 is sucked by the transfer ma...

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Abstract

The invention provides an image forming apparatus capable of easily eliminating the image unevenness based on the speed change generated by a transfer roller. An image forming apparatus including a latent image bearing drum on which a latent image is formed, an exposure unit that exposes the latent image bearing drum, a developer unit that develops the latent image formed on the latent image bearing drum, a transfer medium onto which the image developed by the developer unit is transferred, and a transfer roller that transfers the image from the transfer medium to the transfer material, the transfer roller having a concaved portion extending in the axial direction and a support portion disposed on the outer circumference of the roller that supports the transfer material, where the outer circumference of the transfer roller being an integral multiple or an approximate integral multiple of the circumference of the latent image bearing drum.

Description

technical field [0001] The present invention relates to developing a latent image formed on a photoreceptor by using a liquid developer composed of a toner and a carrier, transferring the developer based on this to a medium such as recording paper, and then making the transferred medium An image forming apparatus and an image forming method that form an image by fusing and fixing a toner image on it. Background technique [0002] Various wet-type image forming apparatuses for visualizing electrostatic latent images by developing a latent image using a high-viscosity liquid developer have been proposed. agent. The developer used in this wet image forming apparatus is a material in which solids (toner particles) are suspended in an electrically insulating high-viscosity organic solvent (carrier liquid) composed of silicone oil, mineral oil, edible oil, etc. The particle diameter of the toner particles is about 1 μm, which is extremely fine. By using such fine toner particle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/16
CPCG03G15/1655G03G15/757G03G2215/1619G03G15/161G03G2215/00075G03G2215/1614G03G15/1605
Inventor 千叶悟志井熊健
Owner SEIKO EPSON CORP
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