Transfer unit and image forming apparatus
US9285721B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2014 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jul 30, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/1615
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transfer unit includes: a transfer belt mounted over a plurality of rollers to run to transfer toner images on a plurality of image carriers to a front side of the transfer belt; transfer rollers provided for the respective image carriers to give a transfer potential to the transfer belt to transfer the toner images thereto; a drive mechanism configured to move only the transfer rollers for formation of a multicolor image into and out of contact with the transfer belt; a cleaning member contactable with a back side of the transfer belt to clean the back side; and a shifting mechanism configured to, upon contact of the transfer rollers with the transfer belt, shift the cleaning member into contact with the back side of the transfer belt and, upon departure of the transfer rollers from the transfer belt, shift the cleaning member out of contact with the back side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.