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:
Sep. 12, 2000
Filed:
Jul. 11, 1997
Hiroshi Tajika, Yokohama, JP;
Mikio Shiga, Yokohama, JP;
Hiroyuki Ishinaga, Tokyo, JP;
Shinya Matsui, Tokyo, JP;
Akira Nagatomo, Yokohama, JP;
Toshio Kashino, Chigasaki, JP;
Tetsushi Kohno, Tokyo, JP;
Yoshie Asakawa, Nagano-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for standardizing an ink jet recording head is arranged to be capable of utilizing the characteristics of each of recording heads to the maximum, while maintaining the compatibility between them. Particularly, the compatibility is maintained between the novel type recording head whose interior is partitioned into two layers through movable members, and a conventional type recording head. When the conventional type recording head is mounted on a novel type recording apparatus, all the requirements are handled by the novel type recording apparatus side to drive the conventional type recording head under a condition regulated for the conventional type recording head. When the novel type recording head is mounted on a conventional type recording apparatus, it is driven within the capacity of performance of the conventional type recording apparatus. A discriminator for discriminating the kind of mounted recording head is provided for each of the recording apparatuses. In this way, various control operations are attained. When the structure is arranged to use separate recording heads and ink tanks, the compatibility is maintained, while utilizing the difference in characteristics of the novel type recording head and ink, and those of the conventional type recording head and ink to the maximum by means of discriminating one kind of ink from another.