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:
Apr. 10, 2001
Filed:
Jan. 22, 1999
Yoshihide Akuzawa, Shizuoka-ken, JP;
Yasuhiro Suzuki, Shizuoka-ken, JP;
Hitoshi Ushiogi, Shizuoka-ken, JP;
Kabushiki Kaisha Tec, Tagata-gun, JP;
Abstract
An ink-jet printer, having a print head for jetting ink, an ink supply tube connecting between an ink tank and the print head, an ink supply pump interposing in the ink supply tube, an ink return tube connecting between and the print head and the ink tank, an ink return pump interposing in the ink return tube, a controller for controlling the ink supply pump and the ink return pump to fill the print head with ink in the ink tank, the volume of ink supplied by the ink return pump is greater than the volume of ink returned by the ink return pump in filling mode. Thus a foreign matter in the ink-jet nozzles of the print head can be cleaned by flowing out a foreign matter in the ink-jet nozzles.