Developing device
US4814816A · kind A · utility
15Cited by
11References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1986 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Jun 13, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0636
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device including a developing roller having on its surface a layer of developing agent forced against a photosensitive member to perform developing. The developing roller is brought into contact with the photosensitive member under a predetermined pressure when a developing operation is performed, and is brought out of contact with the photosensitive member or kept in contact with the photosensitive member under a pressure lower than the predetermined pressure when no developing operation is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.