Fujifilm Dimatix, Inc.

Spectra, Inc.

Fujifilm Corporation

Markem Corporation

Dimatix, Inc.

Fujifilm Dimatrix, Inc.

Steven H Barss

Paul A Hoisington

Christoph Menzel

Edward Russell Moynihan

Nathan P Hine

David W Gailus

Melvin L Biggs

Mats G Ottosson

Kevin Von Essen

Robert G Palifka

Bruce A Paulson

Diane Mackay

David Adams-Brady

Darren Todd Imai

Marlene M McDonald

Stephen C Mackay

Charles W Spehrley, Jr

Daniel Wayne Barnett

Jaan Thomas Laaspere

Matthew Aubrey

Andreas Bibl

John A Higginson

Masakazu Okuda

Deane Gardner

Robert A Hasenbein

Jeffrey B Brooks

John C Batterton

Daniel A Cote

William R Letendre

David A Swett

Daniel Alan West

Mark S Noyes

David G Tomaszewski

Frank W Martines

Deane A Gardner

Robert Wells

Daniel W Barnett

Mats Ottosson

Russ Yarp

A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.

Fluid ejection devices with reduced crosstalk

A system includes a print head including multiple nozzles formed in a bottom surface of the print head. The nozzles are configured to eject a liquid onto a substrate. The system includes a gas flow module configured to provide a flow of gas through a gap between the bottom surface of the print head and the substrate. The gas flow module can include one or more gas nozzles configured to inject gas into the gap. The gas flow module can be configured to apply a suction to the gap.

High height ink jet printing

Among other things, for ink jetting, a system includes a printhead including at least 25 jets and an imaging device to capture image information for all of the jets simultaneously, the captured image information being useful in analyzing a performance of each of the jets.

Jet performance

A method of determining whether a flow path is ready for ejection includes supplying liquid to the flow path, which includes a pumping chamber and a nozzle, after supplying fluid to the flow path, applying energy to an actuator adjacent to the pumping chamber, measuring an electrical characteristic of the actuator to obtain a measured value, and comparing the measured value to a threshold value to determine if the flow path is ready for ejection.

Determining whether a flow path is ready for ejecting a drop

A fluid ejector head includes a die with a plurality of fluid ejector units, each fluid ejector unit comprising a pumping actuator having a drive electrode, and a manifold that contacts the first side of the die to define a module volume in fluidic communication with a drainage volume. The module volume is defined in part between the manifold and at least a portion of plurality of fluid ejector units, and the drainage volume is located apart from the fluid ejector units. The module volume, in comparison to the drainage volume, has a greater ratio of interior surface area to volume or has a greater percentage of interior surface area covered by a non-wetting coating.

Mitigation of fluid leaks

In general, in one aspect, the invention features a method for driving a droplet ejection device having an actuator, including applying a multipulse waveform that includes two or more drive pulses to the actuator to cause the droplet ejection device to eject a single droplet of a fluid, wherein a frequency of the drive pulses is greater than a natural frequency, fj, of the droplet ejection device.

High frequency droplet ejection device and method

In general, in one aspect, the invention features a method, including measuring a surface profile of a substrate, generating firing instructions for a droplet ejection device based on the surface profile, and depositing droplets on the substrate with the droplet ejection device according to the instructions.

Morphology-corrected printing

A method for causing fluid to be ejected from a fluid chamber of a jet in a printhead. An actuator is actuated with a first energy imparting pulse to push fluid away from the actuator and toward a nozzle. Following a lapse of a first interval, the actuator is actuated with second energy imparting pulse to push fluid away from the actuator and toward the nozzle. Following a lapse of a second interval as measured from the second energy imparting pulse, the actuator is actuated with a break-off pulse to cause fluid extending out of an orifice of the nozzle to break off from fluid within the nozzle, wherein the second lapse is longer than the first lapse and is an inverse of the meniscus-jet mass frequency.

Separation of drive pulses for fluid ejector

Growing community of inventors

Wilmot Flat, NH, United States of America

Steven H Barss