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:
Oct. 15, 2002
Filed:
Dec. 03, 1999
David E. Weeks, Willseyville, NY (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
Apparatus for cleaning the nozzles of an ink jet cartridge that is mounted upon the carriage of a small point of sale printer. The carriage is arranged to carry one or more ink cartridges over a reciprocal path of travel through a printing station. The printer contains a drive roller mounted upon a shaft for advancing a substrate through the printing station. A rotor is journalled for free rotation on the shaft adjacent to one end of the drive roller. A rocker arm connects the rotor to a solenoid which when energized moves the rotor from an inoperative position into an operative position. A wiper blade is mounted upon the rotor which is adapted to wipe the nozzles on the ink cartridge when the rotor is in the operative position and to retract the blade out of contact with the nozzles when the rotor is moved into the inoperative position.