Charging member, charging device and process cartridge detachably mountable to image forming apparatus
US5765077A · kind A · utility
39Cited by
13References
148Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging member for charging a member to be charged includes a base member: a surface elastic member supported by the base member, the elastic member comprises a foamed member and a coating layer covering the foamed member; wherein a surface of the charging member has an Asker-C hardness of not more than 55 degrees and an international rubber hardness (IRHD) of not more than 80 degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.