Ink supply system with float valve

Details Ink supply system with float valve Ink supply system with float valve

2011-07-19

2011-07-19

Le, Uyen-Chau N (Department: 2874)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S089000, C347S092000

Reexamination Certificate

active

07980685

ABSTRACT:
An ink supply system for an inkjet printer. The ink supply system includes an ink reservoir and a pressure-regulating chamber. The pressure-regulating chamber has an inlet port, an outlet port, an air vent open to atmosphere and a float valve for maintaining a predetermined level of ink in the chamber. The float valve is biased towards a closed position by a positive ink pressure from the ink reservoir at the inlet port.

REFERENCES:
patent: 4677447 (1987-06-01), Nielsen
patent: 5751319 (1998-05-01), Robertson et al.
patent: 6742882 (2004-06-01), Nakamura
patent: 2007/0206070 (2007-09-01), Morgan et al.
patent: 2008/0043075 (2008-02-01), Langford et al.
patent: 1366908 (2003-12-01), None
patent: WO 2008/006139 (2008-01-01), None

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