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.

Date of Patent:
Aug. 29, 2006

Filed:

Feb. 12, 2004
Applicants:

Rick L. Hubert, Lexington, KY (US);

George K. Parish, Winchester, KY (US);

Kristi M Rowe, Richmond, KY (US);

John G. Edelen, Versailles, KY (US);

Paul W. Graf, Lexington, KY (US);

Carl Sullivan, Stamping Ground, KY (US);

Inventors:

Rick L. Hubert, Lexington, KY (US);

George K. Parish, Winchester, KY (US);

Kristi M Rowe, Richmond, KY (US);

John G. Edelen, Versailles, KY (US);

Paul W. Graf, Lexington, KY (US);

Carl Sullivan, Stamping Ground, KY (US);

Assignee:

Lexmark International, Inc., Lexington, KY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/05 (2006.01);
U.S. Cl.
CPC ...
Abstract

An improved heater chip for an ink jet print head, the chip including an active heater array and an inactive heater array located adjacent to and extending away from the end of the active heater array. The inactive heater array provides a region adjacent the end of the active heater array that is substantially planar, and also provides a plurality of current paths which reduces energy differences between heater resistors adjacent the end of the active heater array and other heater resistors in the heater array.


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