Image forming apparatus having means for preventing developer passing through cleaning member
US6438337B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Jul 31, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an image forming apparatus which has an image bearing member developing device for developing an electrostatic latent image formed on the image bearing member with developer, cleaning device for removing residual developer on the image bearing member by contacting with the image bearing member at a cleaning position, charging applying device for applying charge of polarity opposite to normal charging polarity of the developer to the developer before the developer applied to the image bearing member is carried to the cleaning position, wherein a developer image formed on the image bearing member by the developing device is transferred onto a transfer material and wherein the developing device applies developer to an area of the image bearing member which is not contacted with the transfer material, and the developer is carried to the cleaning position by the image bearing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.