Color image forming apparatus having mono-color image forming function
US5307135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Feb 28, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a color image forming apparatus which is capable of forming a mono-color image based on the color image input data. The apparatus includes a circuit for determining the highest value of the image input data. This circuit is called the highest value image data outputting circuit. The highest input color data value is found by comparing the values of the image data for the three primary colors (yellow, magenta and cyan) and outputting the value for the color having the highest input value. The apparatus further includes a mono-color image forming portion which forms a mono-colored image based on the output of the highest value image data outputting circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.