Hewlett-packard Development Company, L.P.

Pere Esterri Pedra

Eric T Martin

Daryl E Anderson

Angel Martinez

Mikel Zuza Irurueta

Marina Ferran Farres

Javier González Bruno

Juan Luis Lopez Rodriguez

David Soriano Fosas

Eduard Pamies Corominas

One example of a fluidic die includes a power supply node, a plurality of fluidic actuators, a plurality of discharge circuits, and a single discharge enable signal path. The plurality of fluidic actuators are electrically coupled to the power supply node. The plurality of discharge circuits are electrically coupled to the power supply node. The single discharge enable signal path is electrically coupled to each discharge circuit of the plurality of discharge circuits to enable each discharge circuit of the plurality of discharge circuits in parallel.

Fluidic dies including discharge circuits

A method and apparatus for controlling firing energy in a printer pen of a thermal inkjet printer are described. A digital voltage value representative of a voltage output by a printer-pen power supply is obtained. The printer-pen power supply is electrically coupled to a switch. The switch is electrically coupled to a nozzle resistor and is controlled using a switch logic signal. A voltage level of the switch logic signal is set based on said digital voltage value and a voltage drop due to a parasitic resistance between the printer-pen power supply and the switch.

Printer control method and system

System and method for deglitching an input signal. An output signal may be delayed to generate a delayed signal, the delayed signal determining a guard time interval following a desired transition in the input signal, and a logic circuit is used to keep the output signal unchanged during the guard time interval, and to allow the output signal to equal the input signal outside the guard time interval, based on a value of the delayed signal.

Circuit and method for deglitching an input signal

A method to determine an amount of remaining fluid in a replaceable fluid supply unit includes determining a first estimated fluid volume of a first replaceable fluid supply unit in communication with a fluid ejector unit, determining a first correction factor corresponding to the first replaceable fluid supply unit in communication with the fluid ejector unit including at least a first volume ratio parameter corresponding to a ratio of a first nominal fluid volume of the first replaceable fluid supply unit and the first estimated fluid volume, determining an amount of fluid consumed from a second replaceable fluid supply unit configured to replace the first replaceable fluid supply unit, and determining a remaining amount of fluid in the second replaceable fluid supply unit by subtracting the determined amount of fluid consumed from a second nominal fluid volume of the second replaceable fluid supply unit.

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Sant Cugat del Valles cat, Spain

Pere Esterri Pedra