Self cleaning wiper blade for cleaning nozzle faces of ink jet p

Details Self cleaning wiper blade for cleaning nozzle faces of ink jet p Self cleaning wiper blade for cleaning nozzle faces of ink jet p

1994-01-03

1996-09-10

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 36, B41J 2165

Patent

active

055554610

ABSTRACT:
A self cleaning wiper blade cleaning system has at least one polyurethane wiping blade releasably mounted in a slot on a planar surface of a fixed structural member. A front end of the mounted blade wipes the nozzle face of the printhead as it enters and leaves a priming station to maintain the printhead nozzle face clear of ink and other debris. The ink which is removed from the printhead nozzle face by the edge of the wiper blade is drawn away therefrom by capillary action of small grooves cut in the wiper blade. The grooves have one end in contact with an absorbent pad provided at a bottom edge of the wiper blade and the other end of the slot is adjacent but spaced a predetermined distance from the front edge of the wiper blade. The capillary action of the grooves provide continuous removal of the ink from the vicinity of cleaning edge of the wiper blade, obviating the need of a separate system to clean the wiper blades. The grooves are so small that the beam strength and thus the cleaning force of the wiper blade is not significantly affected.

REFERENCES:
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patent: 4679059 (1987-07-01), Dagna
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patent: 5065158 (1991-11-01), Nojima et al.
patent: 5151715 (1992-09-01), Ward et al.
patent: 5182582 (1993-01-01), Okamura

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