Bellows system for an ink jet pen

Details Bellows system for an ink jet pen Bellows system for an ink jet pen

1999-04-13

2000-10-31

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 219

Patent

active

061391387

ABSTRACT:
The invention relates to a device for removing air or gas bubbles from a ink jet pen. The device includes a gas accumulation chamber attached to an ink cartridge and a gas inlet port in flow communication with the chamber, the inlet port containing a septum for sealing the port. The chamber contains a gas accumulation device and an urging member for urging the gas accumulation device in order to draw gas into the chamber through the inlet port from a cartridge body upon attachment of the cartridge to the body. The gas accumulation device is activated automatically when a new ink cartridge is installed on the cartridge body thereby removing unwanted air and gas bubbles from the ink feed port of the cartridge and cartridge body.

REFERENCES:
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patent: 5736992 (1998-04-01), Pawlowski, Jr.
patent: 5812155 (1998-09-01), Seccombe
patent: 5815182 (1998-09-01), Otis et al.
patent: 5821965 (1998-10-01), Oda et al.
patent: 5905518 (1999-05-01), DeFilippis

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