Image forming apparatus and process cartridge
US8535861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2009 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00957
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided an image forming apparatus including electrophotographic photoreceptor, a charging unit, an electrostatic latent image forming unit, a developing unit, and a residual toner removing unit, the surface protective layer of the electrophotographic photoreceptor having a surface free energy of about 10 mN/m to about 30 mN/m, the toner in the developing unit includes silica, and the residual toner removing unit including a blade member including a base layer and an edge layer having a type A durometer hardness of from about HsA 75 to about HsA 90 at 23° C., the hardness of the edge layer being higher than the hardness of the base layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.