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. 19, 1999
Filed:
Nov. 13, 1996
Donald L Michael, Corvallis, OR (US);
John H Dion, Corvallis, OR (US);
James A Harvey, Corvallis, OR (US);
James P Kearns, Corvallis, OR (US);
Catherine Rotering, Vancouver, WA (US);
Alan Shibata, Camas, WA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A wet-wiping printhead cleaning system wherein a treatment fluid is applied to at least one of the printhead and wiper elements in an inkjet printer, then subsequently the wiper wipingly contacts the printhead and wipes a portion of the printhead orifice plate where the nozzle orifices are located removing dried ink and other accumulated debris, the treatment fluid lubricating the wiper so as to lengthen wiper service life and enhance wiping performance, as well as acting to render such accumulations more removable by wiping, wherein the treatment fluid is stored in a non-flowable state so as to prevent leaking during periods when the printer is not in use, the treatment fluid being changed to a flowable liquid state for wiping.