Image forming apparatus
US6985680B2 · kind B2 · utility
4Cited by
13References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2004 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Jun 15, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/021
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An AC voltage from a power generating circuit is applied to a charge roller. CPU controls the power generating circuit so as to flow a constant current according to a control value through a current path from the power generating circuit to the charge roller. CPU produces an information according to an peak value of the AC voltage applied to the charge roller. CPU produces an information according to the AC voltage applied to the charge roller when the AC voltage is in a predetermined phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.