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. 30, 2001
Filed:
Mar. 05, 1998
Hiroshi Tajika, Yokohama, JP;
Yoshiaki Takayanagi, Yokohama, JP;
Masayuki Hirose, Kawasaki, JP;
Souhei Tanaka, Kawasaki, JP;
Hiromitsu Hirabayashi, Yokohama, JP;
Noribumi Koitabashi, Yokohama, JP;
Yasuhiro Yamada, Yokohama, JP;
Yasuhiro Numata, Yokohama, JP;
Hitoshi Sugimoto, Yokohama, JP;
Miyuki Matsubara, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A recording method ejects ink by thermal energy produced by a heat generating element of a recording head in response to a drive signal. The method includes the step of controlling an amount of ejection of the ink by a temperature control for the recording head including at least heating of the recording head, when a temperature of the recording head is not higher than a predetermined first temperature. The method further includes the steps of controlling the amount of ejection of the ink by changing a waveform of the drive signal for ejecting ink in accordance with the temperature of the recording head when the temperature of the recording head is higher than the first temperature and not higher than a second temperature, and fixing the waveform of the drive signal when the temperature of the recording head is higher than the second temperature.