The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2006
Filed:
Dec. 17, 2003
Dirk Verdyck, Merksem, BE;
Dirk Verdyck, Merksem, BE;
Agfa-Gevaert, Mortsel, BE;
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 nheater 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 nheater element in accordance with the calculated value.