Image forming apparatus supplying toner efficiently to cleaning means cleaning surface of image bearing member
US7103295B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2004 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Sep 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/168
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image bearing member that bears a toner image; an intermediate transferring material; a transferring unit that transfers a toner image on the image bearing member to the intermediate transferring material; a bias applying unit that applies a bias to the transferring unit; a cleaning unit that contacts and cleans the surface of the image bearing member; a toner supplying unit that, when an image is not being formed, passes a toner image for supply that is formed on the image bearing member through a transferring position to supply the toner image for supply to the cleaning unit; and a switching unit that switches from a state in which the power supply portion is electrically connected to the bias applying unit to a state in which a resistance value between the power supply portion and a ground is 100 MΩ or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.