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:
Dec. 16, 2003
Filed:
Jun. 17, 2002
Naoji Otsuka, Kanagawa, JP;
Hiroyuki Inoue, Kanagawa, JP;
Masahito Yoshida, Saitama, JP;
Takashi Nojima, Tokyo, JP;
Hitoshi Sugimoto, Kanagawa, JP;
Shusuke Inamura, Tokyo, JP;
Yasufumi Tanaami, Tokyo, JP;
Takeshi Iwasaki, Kanagawa, JP;
Noriko Sato, Kanagawa, JP;
Yasuyuki Hirai, Kanagawa, JP;
Takeshi Yazawa, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a structure which includes a second tank for reserving a predetermined amount of ink to be supplied to a printing head and in which a supply system is configured such that ink is intermittently supplied to the second tank from a first tank, a high charging efficiency to and shortened processing time for charging the second tank, and high overall usability of ink are achieved. In an orientation upon using the printing apparatus, a port of a channel located at the second tank side for supplying ink from the first tank to the second tank is arranged relatively high position and an outlet port for supplying ink from the second tank to the head is arranged relatively low position in relation to the direction of gravity, and a port of the channel located at the first tank side is arranged at the bottom of the first tank.