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US 2026/0109152 A1Published application
Printhead system with nozzle rejuvenation system
AssigneeXerox Corporation
InventorsTravis Burt, Peter Gulvin, Christine A. Steurrys, Steven R. Moore
Life of this patent
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Abstract
A printer applies pressure through an ink supply system to enable degassed ink to flow through an ink delivery system to remove air bubbles from the printhead.
Claims20
A marking system comprising:
- a printhead comprising a plurality of nozzles configured to eject ink;
- a fluid supply system configured to supply ink to printhead, the fluid supply system comprising:
- an ink reservoir fluidly positioned to hold the ink for delivery to the printhead,
- a degasser fluidly coupled to a conduit that is positioned to supply the ink from the degasser to the ink reservoir, the degasser configured to degas the ink as ink passes therethrough, and
- a pump fluidly configured to provide pressure to one or more components of the fluid supply system;
- and
- a control system configured to:
- control the ejection of ink from the plurality of nozzles, and
- in response to detection of a missing nozzle condition in the printhead, activate a protocol that comprises initiating one or more cycles that comprise operating the pump at a pressure that is lower than a normal operating pressure of the pump to eject the degassed ink through the plurality of nozzles until the missing nozzle condition ends, a threshold number of cycles have completed, or a threshold period of time is reached.
6 more elements
A method of removing gas from a marking system, the method comprising:
- providing a marking system comprising:
- a printhead including a plurality of nozzles,
- a control system, and
- an ink supply system comprising:
- an ink reservoir fluidly positioned to hold the ink for delivery to the printhead,
- a degasser fluidly coupled to a conduit that is positioned to supply the ink from the degasser to the ink reservoir, the degasser configured to degas the ink as ink passes therethrough, and
- a pump fluidly configured to provide pressure to one or more components of the fluid supply system;
- and
- by the control system, in response to detecting a missing nozzle condition in the printhead, activating a protocol that comprises operating the pump at a pressure that is lower than a normal operating pressure of the pump to create an ink flow through the plurality of nozzles until the missing nozzle condition ends, a threshold number of cycles have completed, or a threshold period of time is reached.
6 more elements
Dependencies are inferred from the claim text.