System and method of compensating for defective inkjets with context dependent image data
US8714692B1 · kind B1 · utility
9Cited by
31References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2012 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Dec 4, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/2142
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of compensating for a defective inkjet in an inkjet printer has been developed. A controller identifies pixels in binary image data corresponding to the defective inkjet. The controller identifies alternative pixel locations for non-defective inkjets to print ink drops proximate to the locations of the defective pixels. When a total overlap parameter value identified in a region of image data around the pixels from the defective inkjet exceeds a predetermined value, the controller changes the alternative pixel location for at least one ink drop to reduce overlap and improve image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.