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US 2026/0079414 A1Published application
Electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsFUMIYUKI HIYAMA, AKIHIRO MARUYAMA, CHIHARU AKIYAMA, TSUTOMU NISHIDA
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Abstract
Provided is an electrophotographic apparatus including: an electrophotographic photosensitive member; and a corona charger configured to positively charge the electrophotographic photosensitive member. The electrophotographic photosensitive member includes a monolayer type photosensitive layer. The photosensitive layer contains a charge generating substance, a hole transporting substance, an electron transporting substance, and a binder resin. The binder resin contains a polyester resin having a specific structural unit.
Claims12
An electrophotographic apparatus comprising:
- an electrophotographic photosensitive member;
- and
- a corona charger configured to positively charge the electrophotographic photosensitive member,
- wherein the electrophotographic photosensitive member includes a monolayer type photosensitive layer,
- wherein the photosensitive layer contains a charge generating substance, a hole transporting substance, an electron transporting substance, and a binder resin,
- wherein the binder resin contains a polyester resin having a structural unit represented by the following formula (a) and a structural unit represented by the following formula (1), and
- wherein 70 mol % or more of the structural unit represented by the following formula (a) in the polyester resin is a structural unit represented by the following formula (2):
- in the formula (a), X represents a divalent organic group free of an ester bond,
5 more elements
Dependencies are inferred from the claim text.