Image forming apparatus having alternating current bias control
US9740137B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2016 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Apr 6, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0648
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image bearing member and a developing device having a first developer bearing member and a second developer bearing member, disposed with a gap therebetween. A controller executes a mode in which a first difference between an amplitude of an alternating current bias of a first developing bias applied to the first developer bearing member and an amplitude of an alternating current bias of a second developing bias applied to the second developer bearing member at a time of non-image formation is set to be large compared to a second difference between an amplitude of the alternating current bias of the first developing bias applied to the first developer bearing member and an amplitude of the alternating current bias of the second developing bias applied the second developer bearing member at a time of image formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.