Method and apparatus for stitching print swaths in an image-rendering device
US6357847B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2000 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Dec 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/111
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a method and apparatus for stitching print swaths in an image-rendering device such as an acoustic ink printer. More particularly, the invention is directed to a method implemented in an apparatus to reduce the visual artifact caused by inaccurate paper advance between neighboring swaths of an ink emitter printhead. The method includes the provision of a “puzzle cut” or “zipper” edge between swaths. In this regard, the image is divided into swaths and the edges thereof are dithered to vary the depth of the cut in accordance with the expected paper advance accuracy and other printing characteristics such as noise and variations in the width of print swaths for different printheads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.