Image forming apparatus including an electrophotographic photoreceptor
US12189315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2023 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Aug 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/0011
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an electrophotographic photoreceptor that has an outermost surface layer containing fluorine-containing resin particles, a charge transport material, and a binder resin, in which the number of carboxy groups contained in the fluorine-containing resin particles is 0 or greater and 30 or less per 106 carbon atoms, and the outermost surface layer has a tan δ of 0.025 or greater and 0.030 or less, a charging device that comes into direct contact with the electrophotographic photoreceptor and applies only a DC voltage to charge the electrophotographic photoreceptor, an electrostatic latent image forming device that forms an electrostatic latent image on a surface of the charged electrophotographic photoreceptor, a developing device that develops the electrostatic latent image formed on the surface of the electrophotographic photoreceptor with a developer containing a toner to form a toner image, a transfer device that transfers the toner image by bringing the electrophotographic photoreceptor and a medium to be transferred into direct contact with each other, and a cleaning device that cleans the surface of the electrophotographic photoreceptor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.