Image density control method for an image forming apparatus
US4910557A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1989 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Mar 1, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/5041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image density control method for an image forming apparatus controls any of various image forming conditions such as toner density on the basis of a result of image density detection which is executed in a pattern detection mode. A plurality of pattern detection modes are provided each for developing the latent image of a pattern having a reference voltage under a different potential for development. A development gamma characteristic representative of a characteristic relationship between the amount of toner deposited on the resulting toner image representative of the pattern and the potential for development on the basis of the results of detection which are individually associated with the plurality of pattern detection modes. The image forming condition is controlled such that the determined development gamma characteristic substantially coincides with a target development gamma characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.