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:
Feb. 12, 2001
Applicant:
Inventors:
Karai P. Premnath, Rochester, NY (US);
William L. King, Rochester, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/165 ;
U.S. Cl.
CPC ...
B41J 2/165 ;
Abstract
A priming method for a fluid ejection system that divides the priming schedule for the ink ejector into two parts (charging and priming). Priming is well known in the industry and is a high negative pressure pulse of short duration to minimize print quality defects and to remove air bubbles in the printhead. Charging is a low negative pressure profile of longer duration to prepare dry or new printhead for use and to minimize discontinuities and ink flow when a new ink jet cartridge is installed.