Image forming apparatus including an alternative printing unit
US8265502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Jan 5, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0142
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an alternative printing unit. The alternative printing unit performs alternative printing of a black image by mixing images of color materials of three colors of cyan, yellow, and magenta. The alternative printing unit includes a color material amount control unit that controls amounts of the respective color materials, which form the images of the color materials of the three colors, so as to be smaller than those at a time of normal printing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.