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:
Sep. 17, 2002
Filed:
Sep. 15, 2000
John Philip Bolash, Lexington, KY (US);
Jim Dal Freeze, Lexington, KY (US);
Duane Edward Norris, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
The invention provides a method for aligning multiple color ink jet printheads to provide ink droplet placement within about {fraction (1/600)} inch of desired droplet location. The method includes providing an ink jet printer containing a printhead carriage for retaining a black ink printhead and a multi-color ink printhead thereon. The black ink printhead contains a black ink pen and the color ink printhead preferably contains at least two pens for providing droplets of ink on a print media. A color pen is selected to provide reference vertical and horizontal alignment patterns rather than using a black pen as the reference color. This enables a smaller error for alignment than provided with conventional alignment patterns.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile