Image forming apparatus having a rotary developing device with plural developing units
US7245859B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jun 17, 2005 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Oct 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1884
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image-forming apparatus includes a rotary developing device including a casing having absolute value of the surface potential of not larger than 300 V.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.