Compensation for marking-position errors along the pen-length direction, in inkjet printing
US6494558B1 · kind B1 · utility
24Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2000 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Oct 20, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A calibration technique, for a printer having a plurality of different color ink printheads, which includes printing and scanning a test pattern. The test pattern is printed by each printhead printing a plurality of swaths having a length and distanced apart from each other. An optical sensor is used to scan the printed test pattern. Calibration is performed for each head by reading the swath length and the relative spacing of the swath and comparing the length to the spacing. This comparison is used to find the directional error for each head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.