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. 02, 1998
Filed:
Apr. 01, 1996
Tetsuya Inui, Nara, JP;
Hirotsugu Matoba, Sakurai, JP;
Susumu Hirata, Ikoma-gun, JP;
Yorishige Ishii, Yamatotakada, JP;
Shingo Abe, Tenri, JP;
Masaharu Kimura, Daito, JP;
Hajime Horinaka, Kashiba, JP;
Hiroshi Onda, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An ink jet printer performs a control of a supply of electric power for each heating element based on a temperature dependency of a resistance value by monitoring its resistance value while ink is being discharged. Accordingly, the ink jet printer permits a damage of the heating element and a discharge inferior caused by a difference in characteristics in heating elements, ambient temperature, etc., to be suppressed. Additionally, as the temperature of the heating element is not detected directly, the ink jet printer permits high speed control of the electric value, thereby permitting high speed printing.