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image forming device

An image and agent image technology, applied in the field of image forming devices, can solve the problems of filling developer, poor image quality, etc.

Active Publication Date: 2022-03-29
OKI ELECTRIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In general, in an electrophotographic image forming apparatus, when an image is formed on a medium with a relatively large surface roughness, it is difficult to fill the concave portion of the medium with developer, and the image quality may be poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0062] (Example of an image forming apparatus that transfers a color image using a second transfer voltage so as to be superimposed on the transparent image after transferring a transparent image on a medium using a first transfer voltage)

no. 2 approach

[0064] (Example of an image forming apparatus that further transfers a color image and a second transparent image so as to be superimposed on the first transparent image after transferring the first transparent image to a medium)

no. 3 approach

[0066] (an image forming apparatus that transfers a color image and a second transparent image using a second transfer voltage in a manner superimposed on the first transparent image after the first transparent image is transferred on a medium using a first transfer voltage example of)

[0067] 4. Experimental example

[0068] 5. Other modifications.

[0069]

[0070] [1-1. Configuration of Image Forming Apparatus]

[0071] figure 1 An overall configuration example of the image forming apparatus according to the first embodiment of the present invention is schematically shown. figure 2 is a block diagram showing a configuration example of a control mechanism of the image forming apparatus. The image forming apparatus corresponds to a specific example of the “image forming apparatus” of the present invention, and is a printer that forms an image (for example, a color image) using an electrophotographic method on a medium PM to be printed, such as paper or film. As the m...

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Abstract

The present invention provides an image forming apparatus including an image forming unit and a transfer unit. The image forming section has a first image forming unit that forms a first developer image and a second image forming unit that forms a second developer image. The transfer section transfers the first developer image to the medium under the first transfer condition, and performs second transfer on the medium on which the first developer image is transferred under the second transfer condition different from the first transfer condition. Transfer of developer image.

Description

technical field [0001] The present invention relates to an image forming apparatus that forms a developer image on a medium. Background technique [0002] In general, in an electrophotographic image forming apparatus, when an image is formed on a medium having a relatively large surface roughness, it is difficult to fill the concave portions of the medium with developer, and the image quality may be poor. In this regard, a technique has been proposed in which a white toner image or a clear toner image is formed on the surface of a medium and then a color toner image is formed (for example, refer to Patent Document 1). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2006-78883. Contents of the invention [0006] However, for a medium having a greater surface roughness, it is also desirable to form an image of superior quality. [0007] Therefore, it is desired to provide an image forming apparatus capable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/16G03G15/01G03G15/00
CPCG03G15/0131G03G15/16G03G15/6588G03G15/0189G03G15/1675G03G15/6558G03G15/6585G03G2215/0129G03G15/235G03G15/1695G03G15/6579G03G15/6582G03G15/6591G03G15/1605G03G15/36
Inventor 高泽贵之
Owner OKI ELECTRIC IND CO LTD