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:
Dec. 05, 2017
Filed:
Oct. 01, 2014
Applicant:
Xerox Corporation, Norwalk, CT (US);
Inventors:
Erwin Ruiz, Rochester, NY (US);
Jeffrey N. Swing, Rochester, NY (US);
Paul M. Fromm, Rochester, NY (US);
Steven M. Russel, Bloomfield, NY (US);
Assignee:
Xerox Corporation, Norwalk, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 67/00 (2017.01); B29C 64/393 (2017.01); B29C 64/245 (2017.01); B29C 64/241 (2017.01); B29C 64/112 (2017.01); B29C 64/386 (2017.01); B41J 2/165 (2006.01); B41J 2/21 (2006.01); B29C 64/35 (2017.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01);
U.S. Cl.
CPC ...
B29C 67/0088 (2013.01); B29C 64/112 (2017.08); B29C 64/241 (2017.08); B29C 64/245 (2017.08); B29C 64/386 (2017.08); B29C 64/393 (2017.08); B29C 67/0059 (2013.01); B41J 2/16579 (2013.01); B41J 2/16585 (2013.01); B41J 2/2142 (2013.01); B41J 2/2146 (2013.01); B29C 64/35 (2017.08); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12);
Abstract
A three dimensional printer is configured to move at least one printhead from an area where the printhead is forming an object to a position opposite a shaft. The at least one printhead is operated to eject material onto the shaft and the shaft is rotated to enable a light sensor to generate signals indicative of a height of material at a plurality of positions on the shaft. The signals are compared to an expected height of material at each position to identify inoperative inkjets in the at least one printhead.