Print system with volume substantially void of liquid
First Claim
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1. A print system, comprising:
- a volume initially substantially void of a liquid when the volume is initially mounted in the print system, the volume including a vent to vent gas out of the volume;
a nozzle array;
a negative pressure pump assembly to apply a negative pressure to the vent that exceeds a wetted vent bubble pressure of the vent;
a controller; and
a storage medium storage storing instructions executable on the controller to;
initiate, after the volume that is initially substantially void of a liquid is mounted in the print system and responsive to connection of a print liquid supply to the volume, a startup by instructing the pump assembly to actively refresh negative pressure during a first accumulated time span to evacuate a gas out of the volume through the vent, and fill the volume with a print liquid from the print liquid supply, andafter completing the startup that has filled the volume with the print liquid, instruct the pump assembly to refresh negative pressure during a second accumulated time span that is shorter than the first accumulated time span.
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Abstract
A print system or a method to apply a negative pressure to a substantially dry volume through at least one vent.
15 Citations
20 Claims
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1. A print system, comprising:
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a volume initially substantially void of a liquid when the volume is initially mounted in the print system, the volume including a vent to vent gas out of the volume; a nozzle array; a negative pressure pump assembly to apply a negative pressure to the vent that exceeds a wetted vent bubble pressure of the vent; a controller; and a storage medium storage storing instructions executable on the controller to; initiate, after the volume that is initially substantially void of a liquid is mounted in the print system and responsive to connection of a print liquid supply to the volume, a startup by instructing the pump assembly to actively refresh negative pressure during a first accumulated time span to evacuate a gas out of the volume through the vent, and fill the volume with a print liquid from the print liquid supply, and after completing the startup that has filled the volume with the print liquid, instruct the pump assembly to refresh negative pressure during a second accumulated time span that is shorter than the first accumulated time span. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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providing a volume in a system that includes a nozzle array, the volume initially gas-filled and substantially void of a liquid when the volume is initially mounted in the system; after the volume that is initially substantially void of a liquid is initially mounted in the system and responsive to connection of a liquid supply to the volume, initiating, by a controller, a startup by instructing a negative pressure pump assembly to actively refresh negative pressure during a first accumulated time span, by applying, by the negative pressure pump assembly, a negative pressure to a vent of the volume that exceeds a wetted vent bubble pressure of the vent, the applied negative pressure during the startup evacuating a gas out of the volume through the vent, and filling the volume with a liquid from the liquid supply; and after completing the startup that has filled the volume with the liquid from the liquid supply, instructing, by the controller, the negative pressure pump assembly to refresh negative pressure during a second accumulated time span that is shorter than the first accumulated time span. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification