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:
Dec. 07, 1999
Filed:
May. 30, 1995
Takahiro Ohde, Yokohama, JP;
Osamu Asakura, Sagamihara, JP;
Masasumi Nagashima, Yokohama, JP;
Yoshiyuki Shimamura, Yokohama, JP;
Kenji Kawazoe, Yokohama, JP;
Kazuya Iwata, Yokohama, JP;
Seiji Takahashi, Yokohama, JP;
Yuji Kanome, Yokohama, JP;
Tetsuya Ishikawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a recording apparatus using a plurality of kinds of head cartridges each comprising an ink jet recording head and an ink tank formed as a unit, the present invention prevents, when a wrong head cartridge has been mounted during cartridge exchange, data regarding the remain of ink in a thitherto used cartridge of other kind from being lost, and enables the remain of ink in that cartridge to be confirmed. A user is pressed for the exchange of the head cartridge now mounted to thereby effect the exchange actually, and is called on to confirm whether the newly mounted head cartridge is a right one, and the initialization of the data regarding the remain of ink is effected when the user has done the inputting of the confirmation.