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. 03, 2021
Filed:
Jan. 22, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Toshimitsu Danzuka, Tokyo, JP;
Naoaki Wada, Yokohama, JP;
Kazuki Narumi, Komae, JP;
Tomoki Yamamuro, Kawasaki, JP;
Hiroshi Taira, Fuchu, JP;
Akiko Aichi, Tokyo, JP;
Noboru Kunimine, Tokyo, JP;
Taku Yokozawa, Yokohama, JP;
Kazuo Suzuki, Yokohama, JP;
Kazuhiko Sato, Tokyo, JP;
Masataka Kato, Yokohama, JP;
Shin Genta, Yokohama, JP;
Hiroto Kango, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
According to an embodiment of this invention, an apparatus comprises: a detachable inktank containing ink; a subtank containing the ink supplied from the inktank; a printhead configured to discharge the ink supplied from the subtank; an ink supply path connecting the subtank to the printhead; a valve arranged on the ink supply path; a supply unit configured to supply the ink from the inktank to the subtank by repeatedly opening and closing the valve; a suction unit configured to suck the ink from the printhead; and a control unit configured to control, when the inktank is attached, the supply unit to operate for a predetermined number of times to supply the ink from the inktank to the subtank, and to subsequently control the suction unit to operate to supply the ink from the subtank to the printhead.