18922599. ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE (CANON KABUSHIKI KAISHA)
ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE
Organization Name
Inventor(s)
NORIFUMI Muranaka of Kanagawa JP
TSUTOMU Nishida of Shizuoka JP
AKIHIRO Maruyama of Shizuoka JP
ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE
This abstract first appeared for US patent application 18922599 titled 'ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE
Original Abstract Submitted
Provided is an electrophotographic apparatus having high positive chargeability even in an electrophotographic apparatus that simultaneously uses toner containing alumina particles as an external additive and a photosensitive member containing a polyarylate resin excellent in mechanical strength. In the electrophotographic apparatus, the electrophotographic photosensitive member includes a monolayer type photosensitive layer containing a charge generating material, a hole transporting material, an electron transporting material, and a binder resin, the photosensitive layer contains a polyarylate resin having a structural unit represented by the formula (1) and a structural unit represented by the formula (2) as the binder resin, the toner is toner containing toner particles, the toner particles each contain a toner base particle and an external additive adhering to a surface of the toner base particle, and the external additive contains at least aluminum oxide particles.