Image forming apparatus
US10261462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Sep 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/0094
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a control unit that causes a supply operation to form a predetermined toner image and supplies toner of the predetermined toner image to a contact portion between a cleaning member and a photosensitive member at a non-image forming time. During at least a period in which toner of the predetermined toner image on the photosensitive member passes through a transfer unit during the supply operation, the control unit causes application of a pass-through voltage having the same polarity as a normal charge polarity of the toner and an absolute value that is less than an electric potential of a portion that is exposed by an exposure device of the photosensitive member, or having a reverse polarity that is reverse to the normal charge polarity of the toner to be applied from the transfer power supply to the transfer member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.