Efficient data scanning for print mode switching
US8408669B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2010 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jun 29, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/46
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for printing images on an inkjet printer having grayscale print and color print modes, comprising performing an inspection process to inspect lines of image data in an inspection region downstream from a current swath of image data to determine a print mode for a future swath of image data. The inspection process includes inspecting the lines of image data in the inspection region according to a predetermined inspection sequence, determining whether an inspected line contains any pixels to be printed with color ink, and if so terminating the inspection process and designating that the future swath is to be printed with the color print mode; otherwise, if none of the lines are found to contain any pixels to be printed with color ink, designating the future swath to be printed with the grayscale print mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.