Aligning print data for overlapping printheads
US8857938B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jan 29, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/155
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for aligning multi-channel digital image data for a digital printer having an array of printheads for each of a plurality of channels is described. A test pattern including test pattern indicia printed using individual printheads is scanned and analyzed to detect locations of the printed test pattern indicia. For each array position, one of the printheads is designated to be a reference printhead, and one or more of the other printheads are designated to be non-reference printheads. Spatial adjustment parameters are determined for each of the non-reference printheads responsive to the detected test pattern indicia locations. Digital image data to be printed with the non-reference printheads is modified in accordance with the determined spatial adjustment parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.