Electrophotographic photoreceptor, process cartridge, and image forming apparatus
US11880162B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 19, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Sep 19, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/75
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer on the conductive substrate, a charge generation layer on the undercoat layer, a charge transport layer on the charge generation layer, and an inorganic protection layer on the charge transport layer, in which the charge transport layer contains a binder resin and a charge transport material, and, when impedance of the charge transport layer is measured, a ratio (C1Hz/C10Hz) of an electrostatic capacitance C1Hz at 1 Hz to an electrostatic capacitance C10Hz at 10 Hz is 1.1 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.