Developing device for copier with sealing means
US4998140A · kind A · utility
26Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1988 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Aug 17, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0882
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device for an electrophotographic copier has a supply tank above a developing tank with an opening therebetween. A sealing member is removably attached to the rims of this opening before the developing device is ready to be used. An end part of this sealing member is attached to a take-up shaft and the sealing member is pulled or peeled off to be wound around the take-up shaft when the developing device is set in the copier and the shaft becomes connected to a motor in the copier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.