Particle tolerant printhead

Details Particle tolerant printhead Particle tolerant printhead

1997-07-31

1999-12-28

Pendegrass, Joan

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 93, B41J 205, B41J 2175

Patent

active

060071885

ABSTRACT:
Islands of barrier layer material of an inkjet printhead are disposed between an ink source and the ink feed channels leading to the ink firing chambers to filter particles in the ink. Dimensions of the ink feed channels and ink ejecting orifices have been reduced in size and the thickness of the barrier layer has been made thinner. The nominal size of the filter pores is less than the barrier layer thickness while the width of the ink feed channels and the bore diameter of the orifices is larger than the barrier layer thickness.

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