Image forming apparatus
US9429868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Aug 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/095
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a controller that executes a collection sequence to collect developer of opposite polarity adhering to a charging member. The controller executes the collection sequence by setting a first potential difference to allow the developer of opposite polarity to move from the charging member to an image bearing member, setting a second potential difference to allow the developer of opposite polarity to move from the image bearing member to a developer bearing member and to allow the developer of regular polarity to move from the developer bearing member to the image bearing member, setting a third potential difference to not allow the developer of regular polarity to move from the image bearing member to the charging member, and setting a fourth potential difference to allow the developer of regular polarity to move from the image bearing member to the developer bearing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.