Drive circuit of ink jet head and driving method of ink jet...

Details Drive circuit of ink jet head and driving method of ink jet... Drive circuit of ink jet head and driving method of ink jet...

2005-08-16

2005-08-16

Pham, Hai (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S009000, C347S068000, C347S010000

Reexamination Certificate

active

06929340

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 board22mounted on a carriage, control circuit board11having power amplifier111and cable13, wherein a negative feedback loop is provided from inputs of transfer gates mounted on intermediate circuit board12through wiring114to power amplifier111mounted on control circuit board11.

REFERENCES:
patent: 5384583 (1995-01-01), Katerberg et al.
patent: 6068360 (2000-05-01), Hiwada
patent: 6273538 (2001-08-01), Mitsuhashi et al.
patent: 6334668 (2002-01-01), Isamoto
patent: 0995599 (2000-04-01), None
patent: 9-174883 (1997-07-01), None
patent: 10-315451 (1998-12-01), None

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