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. 29, 2006
Filed:
Jan. 28, 2004
Masahito Yoshida, Saitama, JP;
Noboru Shimoyama, Kanagawa, JP;
Yasuyuki Hirai, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
This invention provides a small and simple construction to drive a mechanism for maintaining a printing performance of a print head. In one preferred mode of the invention, a recovery device to maintain the printing performance of the print head has a suction pump unit, a capping unit and a wiping unit. The suction pump unit is driven through a spring clutch mechanism by an LF motor in the print sheet transport unit as a drive source. The capping unit and the wiping unit are driven by an AP motor as a drive source in a rotary dead zone set for a paper feed unit that feeds the print sheet to a transport unit. A piston pump is suited for use in a recovery operation to maintain the function of the print head.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile