Laser printer with diselectrification brush
US7251443B2 · kind B2 · utility
2Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2005 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Sep 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1642
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser printer includes a photoreceptor drum, a transfer roller contacting the photoreceptor drum, a transfer roller frame holding the transfer roller, an outer frame holding the transfer roller frame, a diselectrification brush fixed to the transfer roller frame, and a spring at least having a surface formed of conductive material for biasing the transfer roller toward the photoreceptor drum. The spring is formed of a single member and has a first extension contacting the diselectrification brush and a second extension contacting the outer frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.