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. 09, 2011
Filed:
Jan. 31, 2007
Jennifer Marie Mccord Brister, San Marcos, CA (US);
Jeffrey Anderson, Singapore, SG;
Yick Wai Yvonne Audrey Ho, Singapore, SG;
Chin Hung Andy Koh, Singapore, SG;
Fei Guo, Singapore, SG;
Chee Beng Teo, Singapore, SG;
Jennifer Marie McCord Brister, San Marcos, CA (US);
Jeffrey Anderson, Singapore, SG;
Yick Wai Yvonne Audrey Ho, Singapore, SG;
Chin Hung Andy Koh, Singapore, SG;
Fei Guo, Singapore, SG;
Chee Beng Teo, Singapore, SG;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
One or more preventative maintenance mode parameters for an inkjet-printing device having an inkjet-printing mechanism are determined based on a water loss rate of water from ink within the device and/or on an air gain rate of air into the ink within the device. As such, periodic performance of a non-user-initiated preventative maintenance mode based on the preventative maintenance mode parameters results in the ink within the inkjet-printing mechanism being sufficiently fresh so as not to affect quality of image formation by the inkjet-printing device. Therefore, the non-user-initiated preventative maintenance mode for the inkjet-printing device is periodically performed based on the preventative maintenance mode parameters to eject at least some of the ink from, and to refill fresh ink into, the inkjet-printing mechanism.