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:
Aug. 04, 1992
Filed:
Sep. 28, 1990
Applicant:
Inventor:
Reinhold E Drews, Pittsford, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
3461 / ;
Abstract
An ink-repellant coating is provided on the nozzle face of a thermal ink jet printhead. The nozzle face has areas made from different materials. Alkyl polysiloxanes are used to treat the nozzle face in order to control wetting characteristics so as to improve jet directionality and to prevent accumulation of debris on the face. An intermediate layer of silica formed between the nozzle face and the ink-repellant layer is provided so that the ink-repellant layer is isotropically hydrophobic.