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. 18, 2000
Filed:
Apr. 10, 1999
Emiliano Bartolome, Barcelona, ES;
Hewlett-Packard Company, Fort Collins, CO (US);
Abstract
In a method for operating an ink jet printer with a curved platen the firing of the ink nozzles of the print heal is controlled in a specific way to avoid the effects of misplacement of ink dots on the printing medium due to the curvature of the platen and other effects. The printing of markings on the printing medium is performed in several passes of the print head whereby the medium is advanced between passes. During a pass, central nozzles are fired more often than nozzles at the periphery of the print head because the precision for peripheral nozzles is worse than for central nozzles. Printing during a single pass is thus performed in bands whereby the amount of ink placed in central bands is higher than in peripheral bands.