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. 28, 2007

Filed:

Nov. 23, 2004
Applicants:

Edward F. Hampton, Woodbury, CT (US);

Keith M. Smith, Fairfield, CT (US);

Inventors:

Edward F. Hampton, Woodbury, CT (US);

Keith M. Smith, Fairfield, CT (US);

Assignee:

Pitney Bowes Inc., Stamford, CT (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method for providing a self-diagnostic process for determining a print shaft contamination condition such as debris build up on the guide shaft in a shuttle head printer is described. The process can be carried out at several points in time including automatically when the printer is powered-up, at a periodic schedule, and/or at the initiation of a user. The process includes a measurement of the print head speed over a travel distance along the guide shaft. If the speed is lower than a predetermined threshold value, the user is notified that a print shaft contamination condition exists.


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