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:
Feb. 21, 2012
Filed:
Apr. 29, 2009
Trevor James Snyder, Newberg, OR (US);
Brian Edward Williams, Woodburn, OR (US);
Susan J. Zoltner, Newberg, OR (US);
Ernest I. Esplin, Sheridan, OR (US);
Conor D. Kelly, Albany, OR (US);
Trevor James Snyder, Newberg, OR (US);
Brian Edward Williams, Woodburn, OR (US);
Susan J. Zoltner, Newberg, OR (US);
Ernest I. Esplin, Sheridan, OR (US);
Conor D. Kelly, Albany, OR (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A method of operating a printhead of an imaging device includes actuating a plurality of ink jets of the printhead to emit drops of ink onto an image receiving surface in accordance with a test pattern. The test pattern includes full pixel density areas and half pixel density areas that alternate in a process direction. Distances in a process direction between drops of the full pixel density areas and drops of the half pixel density areas in transition regions of the test pattern are then measured. The measured process direction distances are then correlated to a graininess level for the printhead.