Back to results
US 2020/0348155 A1Published application
Storing measurements of nozzle conditions
AssigneeHewlett-Packard Development Company, L.P.
InventorsDaryl E. Anderson, Eric Martin
Life of this patent
Estimating the term…
Abstract
In some examples, a fluid dispensing device includes storage elements, and a switch assembly comprising switches controllable by control signals responsive to a given fire event that activates a nozzle of the fluid dispensing device to provide a first sense measurement of a first condition of the nozzle to a first storage element of the storage elements, and provide a second sense measurement of a different second condition of the nozzle to a second storage element of the storage elements.
Claims15
A fluid dispensing device comprising:
- storage elements;
- and
- a switch assembly comprising switches controllable by control signals responsive to a given fire event that activates a nozzle of the fluid dispensing device to:
- provide a first sense measurement of a first condition of the nozzle to a first storage element of the storage elements, and
- provide a second sense measurement of a different second condition of the nozzle to a second storage element of the storage elements.
2 more elements
A printhead die comprising:
- a nozzle to dispense a printing fluid;
- a controller;
- and
- a sample and hold circuit coupled to the nozzle, the sample and hold circuit comprising:
- storage elements;
- and
- a switch assembly comprising switches controllable by control signals from the controller to:
- store a first sense measurement of a first condition of the nozzle in a first storage element of the storage elements, and
- store a second sense measurement of a different second condition of the nozzle in a second storage element of the storage elements,
- the controller to activate the control signals having respective timing relationships with respect to a given fire event that activates the nozzle.
7 more elements
A system comprising:
- a processor;
- and
- a fluid dispensing device comprising:
- a nozzle;
- a sample and hold circuit to store a plurality of measurements of respective different conditions of the nozzle in response to a single fire event to activate the nozzle;
- and
- an output interface to output the plurality of measurements to the processor,
- wherein the processor is to determine a health of the fluid dispensing device responsive to the plurality of measurements.
5 more elements
Dependencies are inferred from the claim text.