Developing device
US7095969B2 · kind B2 · utility
1Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2004 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Mar 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0643
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing device has a voltage application member which is in contact via a toner layer with a developing roller that rotates while holding the toner layer on its outer peripheral surface. A voltage that the voltage application member applies to the toner layer is switched between AC voltage and DC voltage based on humidity or drive cumulated time of the developing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.