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:
Nov. 13, 1990
Filed:
Oct. 31, 1989
Takashi Saito, Yokohama, JP;
Shigeru Yoshimura, Yokohama, JP;
Hiroshi Nitanda, Tokyo, JP;
Junichi Asano, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides an ink jet printer wherein a service life of an ink jet recording head can be effectively utilized by exchanging ink cassettes to be mounted on the recording head. The printer comprises a first supporting mechanism for removably supporting the ink jet recording head, a second supporting mechanism for removably supporting the ink cassette accommodating ink to be supplied to the ink jet recording head, and a recording device provided in the printer or in the ink jet recording head mounted on the printer, for recording or storing the number of the ink cassettes applied to the ink jet recording head mounted on the printer. The present invention also provides an ink jet recording head and an ink cassette used with the above-mentioned ink jet printer.