Bias cleaning system and electrostatic printing apparatus therewith and operating method thereof
US5600405A · kind A · utility
26Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1994 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Jun 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1661
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A bias cleaning system has an electrically conductive brush roller for collecting toner which has to adhered a transfer belt by scrubbing the toner off the transfer belt under a condition in which a direct current voltage of the opposite polarity to the charge of the toner is applied to the brush roller. A corona charger is also provided for decreasing the amount of charge on the toner on the transfer belt in a region of the belt up-stream of the electrically conductive brush roller in the moving direction of the transfer belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.