Digital color copying machine comprising a test mode for making a color adjustment
US4958221A · kind A · utility
28Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Nov 7, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital color copying machine comprising a test mode is disclosed. In the test mode, image data corresponding to a partial area of an original document indicated is stored in a RAM, and thereafter, the image data stored in the RAM is read out repeatedly plural times of a number input by a set of ten keys, and plural test images of the input number for which the color correction is made with different color balances respectively are formed as mosaic monitor images on a recording medium. Then, one of plural test images is selected, and a copy of document having a color balance of the selected test image is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.