Tandem-type color image forming apparatus
US6799011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0154
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To prevent a belt and image forming means from being stained by spilled toner and also reduce the vibration of an exposure means. An image forming apparatus is of a tandem type in which mage forming stations Y, M, C, K for respective colors are arranged along a transfer belt 14. Each image forming station Y, M, C, K has an image carrier 17, a charging means 19 and a developing means 20 which are arranged around the image carrier 17. The image forming apparatus forms a multi-color image by passing the transfer belt 14 through the respective image forming stations. The transfer belt 14 is laid around a driving roller 12 and a driven roller 13 with a constant tension. One of the driving roller and the driven roller is positioned obliquely above the other roller, the driving roller and the driven roller are disposed such that the belt tension side at the time of driving the transfer belt is on the lower side, and the image carriers of the respective image forming stations are in contact with the belt tension side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.