Contact charging member for charging a photosensitive drum having improved durability and a method for making the same
US5576805A · kind A · utility
24Cited by
5References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging member contactable to a member to be charged to electrically charge it, the improvement residing in that a microhardness of an end region, with respect to a longitudinal direction, of the charging member is larger than that in a central region of the charging member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.