Deconvolution scheme for reducing cross-talk during an in the line printing sequence
US7023461B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | May 4, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/355
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method for reducing or eliminating cross-talk when operating a thermal print head for printing one line on a recording medium.Energizable heater elements of a thermal print head are drivable with at least one activation pulse for supplying a controllable amount of heat to the heater elements to generate a graphical output level of pixel areas on thermographic material. According to the method a plurality of subsets of the heater elements are sequentially driven to print pixel areas in each line. The cross-talk between pixel areas printed by heater elements in the same and/or different subsets is reduced by calculating a value relating to heat supplied to an nth heater element in accordance with a predetermined relationship relating the effect of heat from any one heater element after activation thereof on the graphical output of neighboring heater elements in the same and/or a different subset, and by driving the nth heater element in accordance with the calculated value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.