System and method of compensating for defective inkjets
US8985723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/2139
- 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 an overlap parameter value identified between ink drops in alternative pixel locations and other ink drops around the alternative pixel locations 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.