Printing method and apparatus correcting ink ejection in each row region using a combined correction value for certain coexistent row regions
US7787147B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2007 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Jan 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0085
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printing method includes determining a first correction value corresponding to a first print mode, determining a second correction value corresponding to a second print mode, and correcting an ink ejection amount of each row region individually, using a combined correction value obtained by combining the first correction value and the second correction value. The first print mode is a print mode that is applied to a front end area, with respect to a transport direction, of a medium. Dot rows are formed extending in a nozzle movement direction that is perpendicular to the transport direction, on a plurality of row regions lined up in the transport direction. The dot rows are formed by repeating a movement ejection operation of ejecting ink onto the medium while moving nozzles in the movement direction, and a transport operation of transporting the medium in the transport direction. The first correction value is for correcting an ejection amount of the ink in each row region individually. The second print mode is a print mode that is applied to a middle area, with respect to the transport direction, of the medium. The second correction value is for correcting an ejection amount of …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.