Inkjet head with conductive elastic member for electrical...

Details Inkjet head with conductive elastic member for electrical... Inkjet head with conductive elastic member for electrical...

2005-09-27

2009-08-25

Meier, Stephen D (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S057000

Reexamination Certificate

active

07578580

ABSTRACT:
An inkjet head for ejecting ink droplets is disclosed which includes: a nozzle unit having metal thin plates and a piezoelectric device, adapted to eject the ink droplets; a printed circuit board supplying to the piezoelectric device a drive signal for causing the nozzle unit to eject the ink droplets; a support supporting the nozzle unit and the printed circuit board in opposing relationship to each other; an earth contact disposed on the nozzle unit; a ground contact disposed on the printed circuit board, held at a reference potential; an electrically conductive elastic member disposed between the earth and ground contacts, such that portions of the elastic member are in electrical contact with the earth and ground contacts, respectively; and a movement limiter limiting movement of the elastic member to thereby prevent the elastic member from being disengaged from the earth and ground contacts.

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