Single jet recirculation in an inkjet print head
AssigneeXerox Corporation
InventorsTerrance L. Stephens, David A. Tence, Ryan J. Evens
Life of this patent
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Abstract
An inkjet print head including a plurality of single jet elements. Each of the single jet elements includes an aperture configured to eject ink during a jetting event, and a channel for receiving ink, the channeling including a recirculation portion configured to receive ink during a non-jetting event. The print head also includes a first manifold structured to supply ink to the channel, and a second manifold structured to receive ink from the recirculation portion of the channel. The ink flows from the inlet portion to the second outlet portion during non-jetting through the second outlet portion.
Claims20
A method of controlling pressures in a print head, comprising:
- heating ink to a desired temperature;
- applying a negative pressure to a first manifold connected to a channel and a lower negative pressure at a second manifold connected to a recirculation channel for a predetermined amount of time after the ink is heated to a desired temperature;
- and
- ejecting ink through an aperture after the predetermined amount of time has elapsed.
A method of controlling pressure in a jet element, comprising:
- heating ink in the jet element to a desired temperature;
- when the ink reaches the desired temperature, applying a negative pressure to a first manifold of the jet element connected to a channel and a lower negative pressure at a second manifold connected to a recirculation channel for a predetermined amount of time after the ink is heated to a desired temperature, wherein the negative pressure and the lower negative pressure are determined based on a size of the recirculation channel;
- and
- ejecting ink through an aperture of the jet element after the predetermined amount of time has elapsed.
A method of controlling pressure in a jet element, comprising:
- heating ink in the jet element to a desired temperature;
- and
- when the ink reaches the desired temperature, applying a negative pressure to a first manifold of the jet element connected to a channel and a lower negative pressure at a second manifold connected to a recirculation channel for a predetermined amount of time after the ink is heated to a desired temperature, wherein the negative pressure and the lower negative pressure are determined based on a size of the recirculation channel.
Dependencies are inferred from the claim text.