Dual electrostatic brush cleaner bias switching for multiple pass cleaning of high density toner inputs
US6775512B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Nov 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0106
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for removing charged particles from a surface, the surface being capable of movement, including: a preclean corotron having a first polarity; and a first cleaning brush for cleaning charged particles from the surface, having a second polarity different from the first polarity of the preclean corotron; a second cleaning brush for cleaning the charged particles from the surface, having a predefined polarity, the second cleaning brush being located downstream from the first cleaning brush, in the direction of motion of the surface; and a controller for changing the predefined polarity of the second cleaning brush from the first polarity to the second polarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.