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:
Aug. 16, 2005
Filed:
Jan. 18, 2002
Sunao Ishizaki, Tokyo, JP;
Sunao Ishizaki, Tokyo, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
In order to improve dullness of waveform of a drive signal having high slew rate necessary to jet ink droplets, which is caused by an influence of a low-pass filter formed by a resistance of a cable for connecting a power amplifier of an ink jet printer to piezo-electric heads of the printer, which are remote physically from the power amplifier, and a capacitance of the piezo-electric actuators, the ink jet printer includes intermediate circuit boardmounted on a carriage, control circuit boardhaving power amplifierand cable, wherein a negative feedback loop is provided from inputs of transfer gates mounted on intermediate circuit boardthrough wiringto power amplifiermounted on control circuit board