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.:

US 6776474 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 17, 2004

Filed:

Jun. 24, 2003
Applicant:
Inventors:

Po-Chin Yang, Tai-Nan, TW;

Chih-Ching Chen, Taipei, TW;

Assignee:

BenQ Corporation, Tau-Yuan Hsien, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/21 ; B41J 2/145 ; B41J 2/15 ;
U.S. Cl.
CPC ...
B41J 2/21 ; B41J 2/145 ; B41J 2/15 ;
Abstract

A method for printing color images with an ink jet printer. The ink jet printer includes a printhead having printing nozzles arranged in first, second, and third columns. The first, second, and third columns each have a length approximately equal to 3*H, where H represents a length of first, second, and third sections of the second column. The method includes ejecting ink from the nozzles of the first, second, or third sections of the second column during each pass of the printhead over a printing medium as necessitated by characteristics of the color image, advancing the printing medium in the first direction by the length H, and ejecting ink from the nozzles of the first and third columns during every third pass that the printhead makes over the printing medium as necessitated by the characteristics of the color image.


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