Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-07-03
2007-07-03
Luu, Matthew (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S050000
Reexamination Certificate
active
10796140
ABSTRACT:
A head main body includes a passage unit having nozzles and pressure chambers, and an actuator unit adhered to the passage unit to change the volume of the pressure chambers. On a piezoelectric sheet of the actuator unit, formed are not only individual electrodes corresponding to the respective pressure chambers, but also a land and a dummy land in a pair corresponding to each of the individual electrodes. The land is connected to the individual electrode, and the dummy land is spaced from the individual electrode. The land and the dummy land have substantially the same height from a surface of the piezoelectric sheet, which is higher than that of the individual electrodes. The individual electrodes are connected, through the land, to a cable member to supply a drive signal to the actuator unit.
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Brother Kogyo Kabushiki Kaisha
Luu Matthew
Solomon Lisa M.
LandOfFree
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