Corona charger including shutter
US8731440B2 · kind B2 · utility
1Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/027
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging device includes a corona charger, provided with an opening opposing a photosensitive member, for electrically charging the photosensitive member; a sheet-like member provided so that the sheet-like member can cover the opening; a movable device for moving the sheet-like member; and a regulating device for regulating a shape of the sheet-like member so that a central portion of the sheet-like member protrudes toward the corona charger with respect to a circumferential direction of the photosensitive member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.