Liquid discharging apparatus

Details Liquid discharging apparatus Liquid discharging apparatus

2007-11-06

2007-11-06

Stephens, Juanita D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S070000, C347S094000

Reexamination Certificate

active

11088963

ABSTRACT:
An ink discharging apparatus includes a channel unit and actuators. The channel unit has a manifold and separate ink channels, and includes an actuator plate. The ink channels extend from the manifold, each via a pressure chamber to a nozzle. The actuators are fixed to the channel unit, each of which changes the volume of one of the pressure chambers. Each of the pressure chambers is fitted with a barrier block in its bottom surface. The barrier block crosses the line segment connecting an ink inlet port and an ink outlet port. The barrier block has a height which makes no contact with the actuator plate, which is displaced partially when one or more of the actuators are driven. The ink discharger is low in power consumption and can be manufactured at low cost.

REFERENCES:
patent: 5402159 (1995-03-01), Takahashi et al.
patent: 5406318 (1995-04-01), Moore et al.
patent: A 04-341852 (1992-11-01), None
patent: A 05-162311 (1993-06-01), None

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