Image forming apparatus, and processing cartridge
US8883381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2010 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Apr 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00957
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an image forming apparatus including: an electrophotographic photoreceptor; a charging unit; an electrostatic latent image forming unit that forms an electrostatic latent image; a developing unit that develops the electrostatic latent image formed at the electrophotographic photoreceptor by a developer to form a toner image, the developing unit storing the developer containing a toner having toner particles containing a crystalline resin and having a shape factor SF1 of from 100 to 150, a volume average particle diameter of from 3 to 6 μm, and fluorocarbon-based resin particles as an external additive; a transfer unit; and a cleaning unit that cleans the surface of the electrophotographic photoreceptor with a blade containing urethane rubber, the blade disposed applying a pressure to the electrophotographic photoreceptor surface of 0.20 mN/mm or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.