Medium for ink delivery systems
AssigneeXerox Corporation
InventorsSteven J. Dietl, David P. Breemes
Life of this patent
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Abstract
A system for supplying liquid ink to a thermal ink-jet printing apparatus comprises a housing defining a chamber having a ventilation port and an outlet port. The chamber retains a quantity of liquid ink. An ink delivery medium is disposed across the outlet port, providing a capillary force greater than that of the medium. The ink delivery medium is a high density, fine pore fully open cell polyester polyurethane, preferably, ULTRA FINE. A filter is attached to the ink delivery medium.
Claims14
A system for supplying liquid ink to a thermal ink jet printing apparatus, comprising:
- a housing defining a chamber having a ventilation port and an outlet port;
- a liquid ink retaining medium occupying at least a portion of the chamber;
- and
- a scavenger member disposed across the outlet port, providing a capillary force greater than a capillary force provided by the medium, said scavenger member being substantially free of residual foaming surfactants and free of loose particles.
A system for supplying liquid ink to a thermal ink jet printing apparatus, comprising:
- a housing defining a chamber having a ventilation port and an outlet port;
- a liquid ink retaining medium occupying at least a portion of the chamber;
- and
- an ink delivery and filtration medium comprising a high density, fine pore fully open cell polyester polyurethane disposed across the outlet port.
Dependencies are inferred from the claim text.