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:
Aug. 05, 2008
Filed:
Jul. 06, 2005
Applicant:
Rudi Vanhooydonck, Zwijndrecht, BE;
Inventor:
Rudi Vanhooydonck, Zwijndrecht, BE;
Assignee:
Agfa Graphics NV, Mortsel, BG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/155 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method provides an optimized set of waveforms for driving a printhead in greyscale printing wherein the waveforms include a pulse train of N pulses, wherein N is an integer, each pulse having a length L, a time Pexisting between two adjacent pulses. The method includes: optimising a cost function that compares at least one ink ejection parameter such as drop velocity, difference in drop velocity, driving voltage, split velocity, number of split drops or drop placement error, with a printing speed parameter such as printing speed, the length Lof each pulse or the time Pbetween two adjacent pulses.