Liquid delivery in an inkjet type dispenser
AssigneeHewlett-Packard Development Company, L.P.
InventorsMark A Devries, Paul Mark Haines, Ronald J Ender
Life of this patent
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Abstract
In one example, a liquid delivery system for an inkjet type dispenser includes: a printhead unit; a reservoir separate from the printhead unit; a flow path from the reservoir through the printhead unit and back to the reservoir; an interconnect to connect a removable liquid container to the flow path; and a single pump to pump ink along the flow path: from the reservoir through the printhead unit and back to the reservoir; and from the interconnect to the reservoir when a removable liquid container is connected to the interconnect.
Claims8
A liquid delivery system for an inkjet type dispenser, comprising:
- a printhead unit;
- a reservoir separate from the printhead unit;
- a flow path from the reservoir through the printhead unit and back to the reservoir;
- an interconnect to connect a removable liquid container to the flow path;
- and
- a single pump to pump ink along the flow path:
- from the reservoir through the printhead unit and back to the reservoir;
- and
- from the interconnect to the reservoir when the removable liquid container is connected to the interconnect, where the pump is to pull liquid from the reservoir and from the removable liquid container when the container is connected to the interconnect;
- and
- a pressure control device to inhibit the flow of liquid from the reservoir so that a pressure to pull liquid from the reservoir is greater than a pressure to pull liquid from the container connected to the interconnect.
A liquid delivery system for an inkjet type dispenser, comprising:
- a printhead unit;
- a reservoir separate from the printhead unit;
- a flow path from the reservoir through the printhead unit and back to the reservoir;
- an interconnect to connect a removable liquid container to the flow path;
- and
- a pump to pump ink along the flow path:
- from the reservoir through the printhead unit and back to the reservoir;
- and
- from the interconnect through the printhead unit to the reservoir when the container is connected to the interconnect, where the pump is to pull liquid from the reservoir and from the container when the container is connected to the interconnect;
- and
- a pressure control device to inhibit the flow of liquid from the reservoir so that a pressure to pull liquid from the reservoir is greater than a pressure to pull liquid from the container connected to the interconnect.
Dependencies are inferred from the claim text.