Method and apparatus for automatically cleaning the printhead of a thermal inkjet cartridge
United States(US) Patent
Burke Peter M. (Corvallis OR) Barton Earl L. (Corvallis OR)
출원인 / 주소
Hewlett-Packard Company (Palo Alto CA 02)
피인용 횟수 :
140인용 특허 :
An automatic system for cleaning a thermal inkjet printhead. A thermal inkjet ca
A self-cleaning thermal inkjet printing system for use in a thermal inkjet printer unit comprising: an ink cartridge detachably mounted to and movably positioned within said thermal inkjet printer unit, said cartridge comprising a housing having a supply of ink therein and a printhead in fluid commu
A self-cleaning thermal inkjet printing system for use in a thermal inkjet printer unit comprising: an ink cartridge detachably mounted to and movably positioned within said thermal inkjet printer unit, said cartridge comprising a housing having a supply of ink therein and a printhead in fluid communication with said ink, said printhead comprising a plurality of resistors and an outer plate having a plurality of openings therethrough, said ink being expelled from said openings through said plate by heat generated from said resistors during operation of said cartridge, said cartridge further comprising a compartment having a primary absorbent member therein impregnated with a supply of a printhead cleaning solution, said compartment being positioned inside of said housing of said cartridge and comprising at least one opening therethrough in order to provide access to and enable direct contact with said primary absorbent member, said housing of said cartridge further comprising an ink chamber therein, said supply of ink being retained within said ink chamber, said ink chamber being maintained separately from said compartment having said primary absorbent member therein; and a service station mounted to said printer unit, said cartridge being oriented in a parked position directly above said service station when said cartridge is not in operation, said service station comprising a platform having a plurality of resilient, elongate wiper members secured thereto, said wiper members comprising a first wiper member and a second wiper member, said first wiper member being positioned adjacent to and directly against said second wiper member in order to form a capillary pathway therebetween, said wiper members coming in direct contact with said printhead during movement of said cartridge in order to clean said printhead, said wiper members being secured to said platform at a position thereon so that when said cartridge is in said parked position said wiper members are aligned with said compartment of said cartridge and in direct contact with said primary absorbent member through said opening in said compartment in order to receive said cleaning solution therefrom, said cleaning solution being received and retained within said capillary pathway between said first wiper member and said second wiper member.
Rotering Catherine ; Dion John H. ; Harvey James A. ; Johnson Eric Joseph ; Kearns James P. ; Michael Donald L. ; Shibata Alan, Printhead servicing system and method using a moveable wiper between a fluid source and a printhead.
Frank J. Bretl ; Roy Glenn Atkinson IE; Emmet Whittaker IE; Melissa D. Lee ; Jason H. Oakes ; Paul Killeen IE; Mark D. Zinser ; Melanie J Feder ; Richard J. McManus ; Ralph L. Stathem ; Kev, Sequestering residual ink on an ink-jet print cartridge.