Image forming method
US6574442B2 · kind B2 · utility
7Cited by
5References
39Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jul 27, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0106
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming method causes each of a plurality of image stations to form a test patch image on a respective image carrier and senses the density of the test patch image for executing image quality compensation control. The test patch image is formed after image formation using an upstream one of two developing portions in a direction of rotation of the image carrier or before image formation using a downstream one of the developing portions. This method promotes high-speed operation, miniaturization and low-cost configuration of an image forming apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.