Inkjet recording head and inkjet recording apparatus

Details Inkjet recording head and inkjet recording apparatus Inkjet recording head and inkjet recording apparatus

2008-07-08

2008-07-08

Meier, Stephen D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S022000

Reexamination Certificate

active

11086576

ABSTRACT:
The inkjet recording head comprises: a first vibrating plate which forms part of a pressure chamber connecting an ink supply port and an ink ejection port; a first actuator which induces ink ejection from the ink ejection port for printing by deforming the first vibrating plate; a second vibrating plate which forms part of the pressure chamber; and a second actuator which induces ink ejection from the ink ejection port for performing maintenance by deforming the second vibrating plate, wherein a relationship K1>K2is established between a ratio K1of a volume of ink expelled by deformation of the first vibrating plate in relation to a pressure applied to the first vibrating plate by the first actuator during the ink ejection for printing, and a ratio K2of a volume of ink expelled by deformation of the second vibrating plate in relation to a pressure applied to the second vibrating plate by the second actuator during the ink ejection for maintenance.

REFERENCES:
patent: 6485275 (2002-11-01), Takeuchi et al.
patent: 08-224892 (1996-09-01), None
patent: 08-224892 (1996-09-01), None
patent: 9-150509 (1997-06-01), None
patent: 9-193379 (1997-07-01), None
patent: 2000-015003 (2000-01-01), None
patent: 2000-177126 (2000-06-01), None
patent: 2003-145782 (2003-05-01), None

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