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:
Apr. 01, 2003
Filed:
Nov. 20, 2001
Applicant:
Inventor:
Shigeru Suzuki, Nagoya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/938 ; B41J 2/045 ;
U.S. Cl.
CPC ...
B41J 2/938 ; B41J 2/045 ;
Abstract
A flexible flat cable having a driver integrated circuit (IC) thereon is soldered to a piezoelectric actuator of an ink-jet head. A power source equivalent to a power source that generates a voltage required for ink ejection is connected, through a lead wire, to each electrode provided on one side of each piezoelectric element. A negative power source is connected, through another lead wire, to each electrode provided on the other side of each piezoelectric element, that is, on the opposite side from the driver IC. After the piezoelectric actuator is coupled to the flexible flat cable, the piezoelectric elements are polarized using these two power sources.