Developing device with magnetic supply seals
US4982690A · kind A · utility
4Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device has inside a developer tank a developer magnet roller for supplying developing agent to a photoreceptor, a screening member for preventing the supply of developing agent to this developer magnet roller, and sealing members made of magnets for sealing gaps formed around this screening member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.