Individual voltage trimming with waveforms

Details Individual voltage trimming with waveforms Individual voltage trimming with waveforms

2007-06-26

2007-06-26

Huffman, Julian D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

C347S010000, C347S011000

Reexamination Certificate

active

10981072

ABSTRACT:
Apparatus including a plurality of droplet ejection devices, an electric source and a controller. Each droplet ejection device includes switches connected in parallel to a piezoelectric actuator. Each switch includes an input terminal to connect to an input waveform signal, an output terminal to connect to the piezoelectric actuator, a control signal terminal to control a connection of the switch with a control signal, and a resistance between the input terminal and output terminal. The apparatus has a waveform table with information to distribute the input waveform signal to an input of each of the droplet ejection devices. The waveform signal table includes waveform signal information for a step pulse, a sawtooth waveform, and/or a combination of two or more waveform patterns.

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