Head control device and image recording apparatus

Details Head control device and image recording apparatus Head control device and image recording apparatus

2003-06-20

2009-02-24

Matthew, Luu (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S011000, C347S072000

Reexamination Certificate

active

07494199

ABSTRACT:
There is provided a head control device able to re-charge an electromechanical transducing element with a driving pulse without requiring an additional re-charging time period in a recording period. The driving signal includes a plurality of driving pulses, and in each recording period, at least one driving pulse includes a portion varying from a discharging level to a medium level to charge the piezoelectric element to eject a liquid droplet, and a subsequent portion varying from the medium level to a target level to re-charge the piezoelectric element to the target level.

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Aug. 25, 2006 Chinese official action and English translation.

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