Cleaning device and image forming apparatus incorporating same
US8185011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2009 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jul 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1642
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A first roll brush is formed from material having the positive triboelectric charge polarity against toner. A positive bias is applied to the first roll brush through a first collection roller by a first bias application device. A second roll brush is formed from material having the negative triboelectric charge polarity against toner. A negative bias is applied to the second roll brush through a second collection roller by a second bias application device. Thus, the first and second roll brushes are applied by each of biases having polarity identical to the triboelectric charge polarity of material of the roll brush against toner. This enhances cleaning performance of both the roll brushes and prevents degradation of the cleaning performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.