Image forming apparatus having a photoconductive drum
US7979011B2 · kind B2 · utility
5Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2009 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Aug 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0634
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus that includes: a photoconductive drum; a developing roller that is arranged opposite the photoconductive drum and that carries toner; a detecting portion that detects an occurrence of electrical discharge between the developing roller and the photoconductive drum; a control portion that controls the apparatus, that receives an output of the detecting portion and then recognizes the occurrence of the electrical discharge; a direct voltage applying portion that is connected to the developing roller; and an alternating voltage applying portion is disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.