Image formation apparatus
US5638158A · kind A · utility
49Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Mar 14, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1606
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
At least a photosensitive drum 2 and charge roller 9 are attached to a unit 8 so that the photosensitive drum 2 and charge roller 9 can be freely attached to and detached from an apparatus body 1 in unison with the unit case 8, and the charge roller 9 can be freely brought into and out of contact with the surface of the photosensitive drum 2. The apparatus body 1 is provided with pressure cams 5a and 5b adapted to cause the charge roller 9 to be brought into and out of contact with the surface of the photosensitive drum 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.