Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Aug 21, 2015
filing date -
Aug 25, 2014
priority date (Note) -
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Abstract
A process cartridge includes an electrophotographic photosensitive member and a gap retaining member, where the electrophotographic photosensitive member includes a first region having an undercoat layer, a charge generating layer, and a charge transporting layer on a support in this order and a second region having an undercoat layer and a charge transporting layer on a support in this order, the undercoat layer contains a metal oxide particle and any one of an urethane resin, an amino resin, and a polyamide resin as a binder resin, and the charge transporting layer contains a charge transporting substance and at least one selected from the group consisting of a polycarbonate resin and a polyester resin, and where the gap retaining member comes into contact with a surface of the second region of the electrophotographic photosensitive member.
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