Image forming apparatus that discriminates an image portion and a character portion
US5157507A · kind A · utility
9Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | May 30, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image forming apparatus having a plurality of develolping units containing developer the colors of which are different from each other for forming a full-color image. In this image forming apparatus, a character portion of an original is distinguished from a picture portion thereof upon the scan of the original, and the image formation for the character portion is performed in a different developing condition from the developing condition in which the image formation for the picture portion is performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.