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. 06, 2006
Filed:
Oct. 29, 2004
Muga Mochizuki, Kanagawa-ken, JP;
Ichiro Saito, Kanagawa-ken, JP;
Hiroyuki Ishinaga, Tokyo, JP;
Yoshiyuki Imanaka, Kanagawa-ken, JP;
Nobuyuki Matsumoto, Tokyo, JP;
Yoichi Taneya, Kanagawa-ken, JP;
Muga Mochizuki, Kanagawa-ken, JP;
Ichiro Saito, Kanagawa-ken, JP;
Hiroyuki Ishinaga, Tokyo, JP;
Yoshiyuki Imanaka, Kanagawa-ken, JP;
Nobuyuki Matsumoto, Tokyo, JP;
Yoichi Taneya, Kanagawa-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording head comprises a plurality of recording elements for performing recording; a driving circuit for driving the plurality of recording elements; and a predetermined voltage generating circuit for generating a predetermined voltage to be applied to the plurality of recording elements from voltage supplied from outside. With the head thus structured, a desired voltage is generated in the interior of the head by use of the predetermined voltage generating circuit for performing recording, thus making it possible to prevent the voltage drop which may take place if the voltage is supplied from outside through a cable, as well as to prevent the durability of the heat generating elements from being damaged due to noises. It also becomes possible to set the voltage to be applied to the recording elements at an optimal value corresponding to the discharge voltage, hence stabilizing ink discharges efficiently.