Tandem style color image forming apparatus
US6823158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jan 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0119
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus in which multiple photoconductors for corresponding developers of different colors are disposed along a transfer belt or paper conveyance belt, the photoconductors are disposed at intervals that are each an integer multiple of the outer circumference length of the driving roller that drives the transfer belt or paper conveyance belt, and the distance between at least one pair of photoconductors is made different from the distances between the other pairs of photoconductors. As a result, in comparison with when all of the photoconductors are disposed at equal intervals, the degree of freedom in arranging the multiple image forming units that each include an photoconductor can be increased, while color shift among the developed images of the difference colors on the transfer belt or the like is prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.