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Electrophotographic photoreceptor, process cartridge, and image forming apparatus

A technology for electrophotography and photoreceptors, applied in the field of process boxes and imaging equipment, electrophotographic photoreceptors, to achieve high image quality, reduce factors that cause leakage, and prevent image quality defects

Inactive Publication Date: 2007-03-28
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One object of the method disclosed in JP-A-2002-318459 is to prevent the formation of photoreceptor cracks, but as a result of the inventor's research it has been proved that the method of JP-A-2002-318459 is not sufficient to prevent the occurrence of electric leakage, while JP- The photoreceptor disclosed in A-2002-318459 still has room for improvement in preventing electric leakage

Method used

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  • Electrophotographic photoreceptor, process cartridge, and image forming apparatus
  • Electrophotographic photoreceptor, process cartridge, and image forming apparatus
  • Electrophotographic photoreceptor, process cartridge, and image forming apparatus

Examples

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Embodiment

[0249] The present invention will be described in detail with reference to Examples, but the present invention should not be construed as being limited to these Examples.

[0250] (Preparation of Electrophotographic Photoreceptor)

Embodiment A-1

[0252] A cylindrical aluminum support (diameter: 30 mm, length: 404 mm, thickness: 1 mm) was prepared.

[0253] 100 parts by weight of zinc oxide (MZ-300, produced by Tayca Co., Ltd., average particle diameter: 70nm, specific surface area: 15m 2 / g) and 500 parts by weight of tetrahydrofuran were mixed together by stirring, and 1.25 parts by weight of a silane coupling agent (KBM603, manufactured by Shin-Etsu Chemical Co., Ltd.) was added thereto, followed by stirring for 2 hours. Thereafter, tetrahydrofuran was distilled off by vacuum distillation, and baked at 150° C. for 2 hours to obtain zinc oxide surface-treated with a silane coupling agent.

[0254] 100 parts by weight of zinc oxide surface-treated with a silane coupling agent and 500 parts by weight of tetrahydrofuran were stirred and mixed, and a solution obtained by dissolving 1 part by weight of alizarin in 50 parts by weight of tetrahydrofuran was added thereto, followed by stirring at 50°C 5 hours. Next, the ali...

Embodiment A-2

[0260] Except that the compound represented by formula (I-20) was used instead of the compound represented by formula (I-2), electrons comprising a conductive support having a photosensitive layer provided thereon were obtained in the same manner as in Example A-1. A photographic photoreceptor, the photosensitive layer comprises an undercoat layer, a charge generation layer, a charge transport layer and a protective layer sequentially disposed on a conductive support. The obtained electrophotographic photoreceptor is referred to as PR-A-2.

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PUM

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Abstract

An electrophotographic photoreceptor comprises: an electroconductive support; and a photosensitive layer on the electroconductive support, wherein the photosensitive layer having a dynamic hardness of from 20x10<9 >to 150x10<9>N / m<2>and an elastic deformation ratio of from 15 to 80%.

Description

technical field [0001] The present invention relates to an electrophotographic photoreceptor, a process cartridge, and an image forming apparatus. Background technique [0002] As an image forming apparatus using an electrophotographic method, there is conventionally known an apparatus that sequentially performs processes including charging, exposure, development, transfer, and cleaning by using an electrophotographic photoreceptor (hereinafter sometimes simply referred to as a “photoreceptor”). A step of. In recent years, in the field of imaging equipment, there has been an increasing demand for improvement in image quality and service life of the equipment, and in order to meet these demands, improvements in parts and systems have been studied. [0003] For example, a photoreceptor used for writing images is easily stressed during charging and cleaning, and cracks and abrasions occurring on the surface of the photoreceptor cause image defects. Parts that come into contac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/04G03G21/16G03G15/08G03G15/16G03G15/00
CPCG03G5/076G03G5/07G03G5/075G03G5/071G03G5/0567G03G5/144G03G5/0592G03G5/047G03G5/0766G03G5/0764G03G5/0765G03G5/0767
Inventor 家村香於里额田克己额田秀美中村和行
Owner FUJIFILM BUSINESS INNOVATION CORP
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