Method and apparatus for registration and color fidelity control in a multihead digital color print engine
US6467867B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1997 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Sep 3, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/393
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method and apparatus for precise placement of discrete marks comprising a digital image using an optical sensor adapted to read individual dots of a variety of calibration patterns. The sensor is preferably coupled to a reciprocating carriage assembly so that the dot patterns recorded upon a printing media from at least two of a plurality of print heads disposed on the carriage assembly are compared, a preferred timing or trajectory control sequence is calculated, and thereafter relayed to the print heads to correct for physical misalignment of print heads, manufacturing tolerance errors, and the like to improve registration in a digital color print engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.