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1. (WO2004026582) HEAD DRIVE CONTROL DEVICE AND INKJET RECORDING DEVICE

Pub. No.:    WO/2004/026582    International Application No.:    PCT/JP2003/011851
Publication Date: Apr 1, 2004 International Filing Date: Sep 17, 2003
IPC: B41J 2/045
B41J 2/14
Applicants: RICOH COMPANY, LTD.
TANAKA, Shinji
Inventors: TANAKA, Shinji
Title: HEAD DRIVE CONTROL DEVICE AND INKJET RECORDING DEVICE
Abstract:
In an electrostatic head, each of electrostaticactuators includes a diaphragm doubling as or including a first electrode forming a wall surface of a discharge room communicating with a nozzle discharging a drop, and a second electrode opposing the first electrode. The diaphragm is deformed by generating an electrostatic force between the first electrode and the second electrode. The first electrodes or the second electrodes of the electrostatic actuators are combined electrically. Differently polarized potentials are applied to the first electrode and the second electrode upon discharging the drop.