Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2008-06-25
2010-12-07
Do, An H (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
Reexamination Certificate
active
07845781
ABSTRACT:
An inkjet printer that has a replaceable ink cartridge with an ink storage volume and an ink outlet. The ink outlet has an outlet valve that is biased closed and opens upon installation in the printer. The cartridge also has an air bag in the ink storage volume for expanding as ink is drawn through the ink outlet to keep a constant head of ink above the outlet valve. The air bag has an air inlet with a frangible seal configured to be ruptured upon installation of the cartridge such that the air bag is vented to atmosphere. The printer also has a pressure regulating valve for establishing fluid communication between the printhead and the ink storage volume wherein, the pressure regulating valve is biased closed and opens in response to a predetermined ink pressure difference across the valve.
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Berry Norman Micheal
Jackson Garry Raymond
Mackey Paul Ian
Nakazawa Akira
Silverbrook Kia
Do An H
Silverbrook Research Pty Ltd
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