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:
Jan. 11, 2000
Filed:
Jun. 06, 1994
Kazuya Iwata, Yokohama, JP;
Yoshiyuki Shimamura, Yokohama, JP;
Seiji Takahashi, Yokohama, JP;
Yasushi Koike, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording apparatus records using a recording head. The head comprises a plurality of discharge ports for discharging ink, a common liquid chamber for supplying ink to the plurality of discharge ports, and a plurality of discharge elements for causing ink to be discharged from the plurality of discharge ports. The apparatus further comprises driving elements for substantially simultaneously driving said discharge elements corresponding to a first plurality of discharge ports which are not adjacent to each other, among said plurality of discharge ports, and for driving said discharge elements corresponding to a second plurality of discharge ports which are respectively adjacent to said first plurality of discharge ports, not simultaneously with said discharge elements corresponding to said first plurality of discharge ports, but at predetermined intervals within a drive period.