Color image forming apparatus having a variable controlled speed ratio
US7139497B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2003 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jul 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0119
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic color image forming apparatus of the present invention includes a plurality of image forming sections each including an image carrier and image transferring means. Toner images of different colors are sequentially transferred from the image carriers to a sheet being conveyed by an endless belt while electrostatically adhering to the belt, completing a color toner image. Assuming that the surface of each image carrier and that of the belt move at speeds of Vd and Vb, respectively, a ratio of Vb/Vd can be varied by the user of the apparatus. In addition, assuming that a surface of an intermediate transferring mechanism and a surface of a recording medium move at speeds of Vp and Vi, respectively, the ratio of Vp/Vi can be varied by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.