Air removal apparatus for print cartridge

Details Air removal apparatus for print cartridge Air removal apparatus for print cartridge

1999-05-03

2000-04-18

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 219

Patent

active

060506822

ABSTRACT:
In one embodiment, an air purge apparatus includes a bellows, or any other pressure source, for pressurizing a flexible diaphragm internal to a regulator-based inkjet print cartridge. This opens a regulator valve which allows air to be purged out of the print cartridge body. Ink may be supplied to the print cartridge to replace the volume of air and ink removed. Additionally, a pressure source may provide a negative pressure to the nozzles of the print cartridge so as to purge air from the manifold of the print cartridge.

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patent: 5812168 (1998-09-01), Pawlowski, Jr. et al.

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