Liquid delivery system for an inkjet type dispenser
AssigneeHewlett-Packard Development Company, L.P.
InventorBruce Cowger
Life of this patent
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Abstract
In one example, a liquid delivery system for an inkjet type dispenser includes a reservoir to hold liquid, a chamber downstream from the reservoir, a one-way valve to allow the flow of liquid from the reservoir into the chamber and to block the flow of liquid from the chamber back into the reservoir, and a manually actuated pump to pull liquid from the reservoir into the chamber through the valve and to push liquid from the chamber toward a printhead.
Claims13
A liquid delivery system for an inkjet type dispenser, comprising:
- a reservoir to hold liquid;
- a chamber downstream from the reservoir;
- a one-way valve to allow the flow of liquid from the reservoir into the chamber and to block the flow of liquid from the chamber back into the reservoir;
- and
- a manually actuated pump, in which hand movements physically impel the pump, to pull liquid from the reservoir into the chamber through the valve and to push liquid from the chamber toward a printhead.
A liquid delivery system for an inkjet type dispenser, comprising:
- a manually actuated diaphragm pump, in which hand movements physically impel the pump;
- an inlet to the pump from a liquid supply reservoir;
- an outlet from the pump to a printhead;
- and
- a sensor to sense a displacement of the diaphragm.
A handheld inkjet printer, comprising:
- a housing including a hand grip;
- a controller;
- a printhead supported in the housing and operatively connected to the controller;
- an encoder supported in the housing to signal the controller to activate the printhead;
- a replaceable ink cartridge supported in the housing and having a reservoir to hold ink;
- a pump to pump ink from the reservoir to the printhead;
- and
- a trigger mounted to the hand grip and operatively connected to the pump such that pulling the trigger physically impels the pump.
Dependencies are inferred from the claim text.