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:
May. 09, 2006
Filed:
Jan. 26, 2004
Sheng-lung Tsai, Ping-Tung Hsien, TW;
Chi-lun Chen, Hsin-Chu Hsien, TW;
Sheng-Lung Tsai, Ping-Tung Hsien, TW;
Chi-Lun Chen, Hsin-Chu Hsien, TW;
BenQ Corporation, Tao-Yuan Hsien, TW;
Abstract
A method for controlling printing quality in an inkjet printer having a printhead with a plurality of nozzles. The printhead is mounted in a carriage, and the carriage is moved to repeatedly pass the printhead across a print medium in individual swaths. The method includes firing individual nozzles repeatedly during each swath to apply an ink pattern to the print medium, measuring the temperature of the printhead prior to each swath, comparing the temperature of the printhead to at least one reference temperature, and if the temperature of the printhead is greater than the reference temperature, raising the velocity of the carriage during the upcoming swath for ensuring that a distance ink is ejected from the printhead to the print medium is kept substantially constant during each swath.