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:
Jun. 03, 2014
Filed:
Dec. 22, 2011
Minoru Teshigawara, Saitama, JP;
Atsushi Sakamoto, Kawasaki, JP;
Takeshi Murase, Yokohama, JP;
Yoshiyuki Honda, Kawasaki, JP;
Shinichi Omo, Kawasaki, JP;
Masahiko Umezawa, Kawasaki, JP;
Minoru Teshigawara, Saitama, JP;
Atsushi Sakamoto, Kawasaki, JP;
Takeshi Murase, Yokohama, JP;
Yoshiyuki Honda, Kawasaki, JP;
Shinichi Omo, Kawasaki, JP;
Masahiko Umezawa, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A printing apparatus that includes printing element substrates which are provided with printing elements that discharge ink. A plurality of temperature sensors, each of which is provided with one of the printing element substrates, measures a temperature of a corresponding printing element substrate. A selection unit selects any one of the temperature sensors, and a determination unit performs a determination operation to determine a state of the printing element substrate based on the temperature measured by the selected temperature sensor in a case when only the printing elements of a substrate that corresponds to the selected temperature sensor are driven. The determination unit performs the determination operation on a first substrate and then on a second non-adjacent substrate.