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Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and condensed polycyclic aromatic compound

An electrophotographic and photosensitive member technology, used in electrophotographic equipment, process cartridges, and new types of fused polycyclic aromatic compounds, can solve problems such as image deletion potential, image deletion, and changes, and achieve high wear resistance, inhibiting Effects of image deletion and potential changes

Active Publication Date: 2017-09-22
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the durability of the electrophotographic photosensitive member is thus improved, image deletion and potential changes tend to occur
The cause of image loss is considered to be as follows: material in the surface layer of the electrophotographic photosensitive member is deteriorated due to ozone, nitrogen oxide, etc. generated by charging of the electrophotographic photosensitive member, and moisture is adsorbed on the surface of the electrophotographic photosensitive member, thereby reducing Surface resistance of the surface layer
Image loss tends to occur remarkably especially in high-temperature and high-humidity environments

Method used

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  • Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and condensed polycyclic aromatic compound
  • Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and condensed polycyclic aromatic compound
  • Electrophotographic photosensitive member, electrophotographic apparatus, process cartridge, and condensed polycyclic aromatic compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] An aluminum cylinder having a diameter of 30 mm, a length of 357.5 mm, and a wall thickness of 1 mm was used as a support (conductive support).

[0129] Then, 100 parts of zinc oxide particles (specific surface area: 19m 2 / g, powder resistance: 4.7×10 6 Ω·cm) was stirred and mixed with 500 parts of toluene, 0.8 parts of a silane coupling agent was added thereto, and the resultant was stirred for 6 hours. Thereafter, toluene was distilled off under reduced pressure, and the resultant was heat-dried at 130° C. for 6 hours to obtain surface-treated zinc oxide particles. As the silane coupling agent, KBM602 (compound name: N-2-(aminoethyl)-3-aminopropylmethyldimethoxysilane) manufactured by Shin-Etsu Chemical Co., Ltd. was used.

[0130] Then, 15 parts of polyvinyl butyral resin (weight average molecular weight: 40000, trade name: BM-1, manufactured by Sekisui Chemical Co., Ltd.) and 15 parts of blocked isocyanate (trade name: Sumijule 3175, manufactured by Sumika Bayer...

Embodiment 2-4

[0152] Each electrophotographic photosensitive member was produced in the same manner as in Example 1 except that the contents of the hole transporting compound and the melamine compound were changed as shown in Table 1, and evaluated. The results are shown in Table 1.

Embodiment 5

[0154] An electrophotographic photosensitive member was produced in the same manner as in Example 1 except that (I-8) was used as the hole-transporting compound, and evaluation was performed. The results are shown in Table 1.

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Abstract

The present invention relates to an electrophotographic photoreceptor, an electrophotographic devoce, a process cartridge, and fused polycyclic aromatic compounds. A surface layer of the electrophotographic photoreceptor comprises a polymer obtained by polymerization of a hole transporting compound having a first reactive functional group and a compound having a second reactive functional group capable of reacting with the first reactive functional group. The structure of the hole transporting compound other than the first reactive functional group only has carbon atoms or hydrogen atoms, or has only carbon atoms, hydrogen atoms, and oxygen atoms.

Description

technical field [0001] The present invention relates to an electrophotographic photosensitive member, and an electrophotographic apparatus and a process cartridge including the electrophotographic photosensitive member. The present invention also relates to novel fused polycyclic aromatic compounds. Background technique [0002] For the purpose of improving the durability of an electrophotographic photosensitive member containing an organic photoconductive substance, there is a technique for providing a protective layer on a photosensitive layer of an electrophotographic photosensitive member. [0003] Japanese Patent Application Laid-Open No. 2010-211031 describes that the outermost surface layer of an electrophotographic photosensitive member contains a melamine compound and a compound composed of -OH, -OCH 3 , -NH 2 A polymerized product of a composition of a charge-transporting compound represented by a group represented by , -SH or -COOH. [0004] However, if the dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G5/147G03G21/18G03G15/00C07C33/36C07C29/34C07C51/353C07C57/50C07C209/68C07C211/31C07C319/12C07C321/20
CPCG03G5/0605G03G5/0607G03G5/0609G03G5/14708
Inventor 高木进司中田浩一小坂宣夫
Owner CANON KK