Protective shutter for an electrophotographic apparatus having a replaceable developer cartridge
US6731894B2 · kind B2 · utility
0Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | May 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/169
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to a shutter system for electrophotographic machines that effectively reduces the impact of ambient light on the photoreceptor, or image-bearing member. The shutter system of the present invention utilizes a shutter member that substantially covers the cartridge chamber when in a closed position. Preferably, the shutter member is disposed at the opening of the cartridge chamber. The shutter member is held in place by one or more support brackets and is biased to the closed position by one or more springs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.