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:
Jul. 27, 1993
Filed:
Oct. 22, 1991
Masafumi Wataya, Kawasaki, JP;
Hidejiro Kadowaki, Yokohama, JP;
Ken Tsuchii, Tokyo, JP;
Toshiyuki Yanaka, Tokyo, JP;
Kosuke Yamamoto, Yokohama, JP;
Haruhiko Takahashi, Yokohama, JP;
Makoto Takamiya, Kawasaki, JP;
Yasushi Miura, Kawasaki, JP;
Masami Izumizaki, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording apparatus for effecting recording with ink that adheres to a recording medium has an ink jet recording head unit having a recording head in which a plurality of electrothermal conversion elements available to discharge the ink are arranged, a heat exchange device having a first heat exchange portion contacting with the whole area of one side of the recording head in the lengthwise direction thereof and effecting heat exchange and a second heat exchange portion provided in continuation to the first heat exchange portion and extending on the outside far from the recording head, a heater provided near the second heat exchange portion for heating the heat exchange device, and a temperature detector provided on a portion of the first heat exchange portion; the second heat exchange portion being inclined upwardly relative to the recording head; a cooling device for acting on the second heat exchange portion of the heat exchange device and assisting the heat radiation of the second heat exchange portion; and drive controller for controlling the driving of the cooling device and/or the heating device on the basis of the temperature detected by the temperature detector.