Image forming apparatus having transfer electrode
US5081501A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1991 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | May 29, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1628
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an image forming apparatus having a shiftable image bearing member; an image forming device for forming an image on the image bearing member; and a transfer device for transferring the image formed on the image bearing member onto a transfer sheet at a transfer station, the transfer device urging the transfer sheet against the image bearing member and having a transfer electrode to which a voltage is applied; and wherein a resistance value between a surface of the transfer electrode facing the image bearing member and a portion of the transfer electrode at which the voltage is applied is greater at an upstream side of a shifting direction of the image bearing member than at a downstream side thereof, on the surface of the transfer electrode, whereby an image can be obtained without any transfer void.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.