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:
Oct. 25, 2005
Filed:
Jul. 29, 2002
Norihiro Kawatoko, Kanagawa, JP;
Hiroshi Tajika, Kanagawa, JP;
Miyuki Fujita, Tokyo, JP;
Yuji Konno, Kanagawa, JP;
Takayuki Ogasahara, Kanagawa, JP;
Tetsuya Edamura, Kanagawa, JP;
Tetsuhiro Maeda, Kanagawa, JP;
Atsuhiko Masuyama, Kanagawa, JP;
Norihiro Kawatoko, Kanagawa, JP;
Hiroshi Tajika, Kanagawa, JP;
Miyuki Fujita, Tokyo, JP;
Yuji Konno, Kanagawa, JP;
Takayuki Ogasahara, Kanagawa, JP;
Tetsuya Edamura, Kanagawa, JP;
Tetsuhiro Maeda, Kanagawa, JP;
Atsuhiko Masuyama, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an ink jet printing apparatus which sufficiently heats a head even in a low-temperature environment, which enables a proper image to be printed by stably ejecting ink, and which can be inexpensively and simply constructed. According to the present invention, if the detected temperature of a printhead is lower than a first heating threshold temperature, a heating mode in which the printhead can be heated is set before a printing operation. Further, when the heating mode is set and the detected temperature of the printhead is lower than a second heating threshold temperature, a heating unit heats the printhead. Consequently, even in a low-temperature environment, the heating operation keeps ink in a desired condition suitable for printing.