Image data generating method, printing method, image data generating apparatus, and printer
US8040556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Aug 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/107
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A head in a printer has an outlet row including a plurality of outlets arranged in a width direction perpendicular to a scan direction. A threshold matrix is stored in a main body control part, and sleep elements representing sleep of ejection of ink are arranged in the threshold matrix at a regular interval in each element row which is a plurality of elements arranged in a row direction corresponding to the width direction. The threshold matrix is compared with a grayscale original image to generate data of a halftone image where during printing, the number of outlets included in each outlet group not brought into sleep state continuously in the width direction is made equal to or larger than 1 and equal to or smaller than a predetermined number. Thus, it is possible to easily suppress occurrence of unevenness in a printed image, caused by cross talk between outlets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.