Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2007-10-15
2009-06-23
Stephens, Juanita D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S085000
Reexamination Certificate
active
07549738
ABSTRACT:
A refill unit is provided for a printer cartridge with an operatively, negatively pressurized ink reservoir. The unit has a docking assembly for docking with the printer cartridge. An ink bag stores ink and is housed in the docking assembly. A valve actuator is shaped and configured to actuate an outlet valve of the ink reservoir into a closed position and thereafter to actuate an inlet valve of the ink reservoir into an open position when the docking assembly docks with the cartridge. An ink delivery outlet assembly is arranged on the docking assembly in fluid communication with the ink bag and has a seal configured to allow ink to flow from the ink bag to the ink reservoir only when the refill unit engages the cartridge. Constrictor actuators are engageable with the cartridge and are configured to increase pressure in the ink bag during ink flow from the ink bag to the ink reservoir, and to permit a re-establishment of negative pressure in the ink reservoir upon disengagement from the cartridge.
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Berry Norman Michael
Hibbard Christopher
Jackson Garry Raymond
Mackey Paul Ian
Nakazawa Akira
Silverbrook Research Pty Ltd
Stephens Juanita D
LandOfFree
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