Abstract: A fluid fillable cartridge, a method for preventing contamination of nozzle holes in a fluid ejector chip and a method for making an adhesive sealing tape. The fluid fillable cartridge has an open fluid reservoir therein and a fluid ejector chip attached to an exposed surface of the fluid fillable cartridge opposite to the open fluid reservoir. An adhesive sealing tape is attached to the fluid fillable cartridge, wherein the adhesive sealing tape has an adhesive pattern on a first end of the adhesive sealing tape that is configured to attach the adhesive sealing tape adjacent to the fluid ejector chip while being devoid of adhesive in nozzle hole areas of the fluid ejector chip.

Abstract: A method for delivering a predetermined amount of fluid from a fluid ejection head. The method includes measuring one or more parameters selected from fluid flow parameters and electrical parameters for the fluid ejection head to provide one or more measured parameters; calculating a fluid ejection offset value from the one or more measured parameters; storing the fluid ejection offset value in a memory location on the fluid ejection head; accessing the fluid ejection offset value by an ejection head controller; and adjusting an amount of fluid ejected from the fluid ejection head during a fluid ejection step using the fluid ejection offset value to provide the predetermined amount of fluid from the fluid ejection head.

Abstract: A fluid fillable cartridge, a method for preventing contamination of nozzle holes in a fluid ejector chip and a method for making an adhesive sealing tape. The fluid fillable cartridge has an open fluid reservoir therein and a fluid ejector chip attached to an exposed surface of the fluid fillable cartridge opposite to the open fluid reservoir. An adhesive sealing tape is attached to the fluid fillable cartridge, wherein the adhesive sealing tape has an adhesive pattern on a first end of the adhesive sealing tape that is configured to attach the adhesive sealing tape adjacent to the fluid ejector chip while being devoid of adhesive in nozzle hole areas of the fluid ejector chip.

Abstract: A pharmaceutical drug delivery device and method of preventing drying out and drooling of an ejection head for the drug delivery device. The device includes a device body; a fluid outlet nozzle attached to the device body; and a fluid jet ejection cartridge containing a liquid pharmaceutical drug disposed in the body. A fluid ejection head is attached to the fluid jet ejection cartridge and is in fluid flow communication with the fluid outlet nozzle. An elongate, serpentine air flow path disposed between an inner surface of the fluid outlet nozzle and a sealing material that is disposed between an outer surface of the fluid jet ejection cartridge and the inner surface of the fluid outlet nozzle, wherein the elongate, serpentine air flow path provides a reduced pressure differential adjacent to a surface of the ejection head upon use of the drug delivery device and provides a humidification zone.

Abstract: A digital dispense system and methods for preparing samples for analysis. The digital dispense system includes a fluid droplet ejection system housed in a housing unit. The fluid droplet ejection system contains a fluid droplet ejection head and fluid cartridge containing one or more fluids to be dispensed. A cartridge translation mechanism is provided for moving the fluid droplet ejection head and fluid cartridge back and forth over a sample holder in an x direction. A sample tray translation mechanism moves a sample tray back and forth beneath the fluid droplet ejection head and fluid cartridge in a y direction orthogonal to the x direction.

Abstract: A pharmaceutical drug delivery device and method of preventing drying out and drooling of an ejection head for the drug delivery device. The device includes a drug delivery device body; a fluid outlet nozzle attached to the drug delivery device body; and a fluid jet ejection cartridge containing a liquid pharmaceutical drug disposed in the drug delivery device body. A fluid ejection head is attached to the fluid jet ejection cartridge and the fluid ejection head is in fluid flow communication with the fluid outlet nozzle. An elongate, serpentine air flow path is provided between and outer surface of the fluid jet ejection cartridge and an inner surface of the fluid outlet nozzle. The elongate, serpentine air flow path provides a reduced pressure differential adjacent to a surface of the fluid ejection head upon use of the drug delivery device and provides a humidification zone.

Abstract: A fluid fillable cartridge, a method for preventing contamination of nozzle holes in a fluid ejector chip and a method for making an adhesive sealing tape. The fluid fillable cartridge has an open fluid reservoir therein and a fluid ejector chip attached to an exposed surface of the fluid fillable cartridge opposite to the open fluid reservoir. An adhesive sealing tape is attached to the fluid fillable cartridge, wherein the adhesive sealing tape has an adhesive pattern on a first end of the adhesive sealing tape that is configured to attach the adhesive sealing tape adjacent to the fluid ejector chip while being devoid of adhesive in nozzle hole areas of the fluid ejector chip.

Abstract: A removable maintenance fluid holder for a digital dispense system, a digital dispense system containing the removable maintenance fluid holder, and a method of maintaining a fluid droplet dispense cartridge. The removable maintenance fluid holder includes a housing having a handle end and a fluid receptacle end distal from the handle end. The fluid receptable end includes a fluid receptacle for holding fluid dispensed from a fluid droplet ejection head of a fluid droplet cartridge in the digital dispense system. The removable maintenance fluid holder is configured to be inserted and removed from the digital dispense system on a periodic basis.

Abstract: A priming device for a fluid cartridge, a fluid dispense device configured for priming the fluid cartridge, and a method for priming a fluid cartridge. The priming device includes an impact mechanism for a fluid cartridge, wherein the fluid cartridge is devoid of a backpressure device and has a fluid reservoir and an ejection head chip in fluid flow communication with the fluid reservoir.

Abstract: A priming device for a fluid cartridge, a fluid dispense device configured for priming the fluid cartridge, and a method for priming a fluid cartridge. The priming device includes an impact mechanism for a fluid cartridge, wherein the fluid cartridge is devoid of a backpressure device and has a fluid reservoir and an ejection head chip in fluid flow communication with the fluid reservoir.

Abstract: A digital dispense system and method of using a digital dispense system. The digital dispense system includes a pipette-fillable fluid cartridge having one or more fluid chambers therein and having an ejection head attached thereto. The ejection head contains a plurality of fluid ejectors thereon. The fluid ejectors are in fluid flow communication with the one or more fluid chambers of the pipette-fillable fluid cartridge. A fluid detection circuit is disposed on the ejection head and associated with at least one of the plurality of fluid ejectors for signaling the presence or absence of fluid in the one or more fluid chambers.

Abstract: A system and method for ejecting one or more fluids from a digital dispense device. The method includes selecting a) fixed target areas and total fluid volumes for the target areas of the substrate; b) a predetermined droplet volume for the target areas; c) calculating a required number of droplets for the target areas; d) determining a maximum number of droplets per pixel based on the target areas; e) calculating a number of droplets per pass of an ejection head over the target areas; f) modifying one or more dimension of the target areas to create modified target areas; g) selecting and centering the modified spot size target areas in the target areas; and h) depositing fluids in the modified target areas while scanning the ejection head over the modified target areas.

Abstract: A fluid jet ejection device, a method of making a fluid jet ejection head for a fluid ejection device, and a method of improving the plume characteristics of fluid ejected from the fluid jet ejection head. The fluid jet ejection device includes a cartridge body; and a fluid jet ejection cartridge disposed in the cartridge body. The fluid jet ejection cartridge contains a fluid and an ejection head attached to the fluid jet ejection cartridge. The ejection head contains a plurality of fluid ejectors thereon and a nozzle plate having a plurality of fluid ejection nozzles therein associated with the plurality of fluid ejectors, wherein a first portion of the plurality of fluid ejection nozzles have a first axial flow path length and a second portion of the plurality of fluid ejection nozzles have a second axial flow path length greater than the first axial flow path length.

Abstract: A fluid delivery device and a method for controlling the delivering of a fluid to a user. The fluid delivery device includes a cartridge body; a fluid outlet nozzle attached to the cartridge body; a fluid jet ejection cartridge disposed in the cartridge body, the fluid jet ejection cartridge containing a fluid and an ejection head attached to the fluid jet ejection cartridge; wherein the ejection head contains a plurality of fluid ejectors thereon and a nozzle plate having a plurality of fluid ejection nozzles therein associated with the plurality of fluid ejectors configured to deliver the fluid to a user at a predetermined rate. A control system is disposed in the fluid delivery device that includes a differential pressure sensor for sensing an inhalation differential pressure. The control system is configured to terminate fluid delivery below a threshold inhalation differential pressure.

Abstract: A system and method for ejecting one or more fluids from a digital dispense device. The method includes selecting a) fixed target areas and total fluid volumes for the target areas of the substrate; b) a predetermined droplet volume for the target areas; c) calculating a required number of droplets for the target areas; d) determining a maximum number of droplets per pixel based on the target areas; e) calculating a number of droplets per pass of an ejection head over the target areas; f) modifying one or more dimension of the target areas to create modified target areas; g) selecting and centering the modified spot size target areas in the target areas; and h) depositing fluids in the modified target areas while scanning the ejection head over the modified target areas.

Abstract: An open fluid droplet ejection cartridge containing one or more fluids to be dispensed by digital fluid dispense system and a method for digitally dispensing fluids. The open fluid droplet ejection cartridge includes a cover having one or more openings therein, fluid funnels pending from each of the one or more openings in the cover, a chamber separator attached to the fluid funnels for directing fluid to one or more fluid chambers, a fluid overflow chamber for fluid overflow from the one or more fluid chambers, fluid vias associated with each of the one or more fluid chambers, and a plurality of fluid ejection devices adjacent to the fluid vias on a single semiconductor substrate in fluid flow communication with the fluid vias.

Abstract: An ejection head. The ejection head includes first fluid ejectors and second fluid ejectors deposited on a semiconductor substrate. A first flow feature layer is attached to the semiconductor substrate to provide a first fluid supply channels and a first fluid chambers and a first portion of second fluid channel and second fluid chambers therein. A second flow feature layer is attached to the first flow feature layer to provide a first portion of first nozzle holes and a second portion of second fluid supply channels and second fluid chambers therein. A first nozzle plate layer is attached to the second flow feature layer to provide a second portion of the first nozzle holes and a first portion of second nozzle holes therein. A second nozzle plate layer is attached to the first nozzle plate layer to provide a second portion of the second nozzle holes therein.

Abstract: A fluid jet ejection device, a method of making a fluid jet ejection head, and a method of improving the plume characteristics of fluid ejected from the fluid jet ejection head. The pharmaceutical drug delivery device includes a cartridge body; and a fluid jet ejection cartridge disposed in the cartridge body. The fluid jet ejection cartridge contains a fluid and an ejection head attached to the fluid jet ejection cartridge. The ejection head contains a plurality of fluid ejectors thereon and a nozzle plate having a plurality of fluid ejection nozzles therein associated with the plurality of fluid ejectors. At least one of the plurality of fluid ejection nozzles has an orthogonal axial flow path relative to a plane defined by the nozzle plate and at least one of the plurality of fluid ejection nozzles has an angled axial flow path relative to a plane define by the nozzle plate.

Abstract: A pipette-fillable fluid reservoir body. The fluid reservoir body includes two or more discrete fluid chambers therein. At least one of the fluid chambers contains a pressure compensation device and at least another one of the fluid chambers is devoid of a pressure compensation device. Each of the fluid chambers is in fluid flow communication with a fluid supply via, and each of the fluid chambers have sidewalls and a bottom wall attached to the side walls, wherein the bottom wall slopes toward the fluid supply via. The fluid reservoir body also includes an ejection head support face in fluid flow communication with the fluid chambers for attachment of a fluid ejection device to the ejection head support face for ejecting fluid from the fluid chambers.

Abstract: A method of forming a print head, by forming a heater chip. Via zones having peripheries are defined on a substrate, with heaters formed along the entire peripheries of the via zones. Traces that electrically connect to each of the heaters are formed. In some embodiments, the heater chip is then stored for a period of time. After storing the heater chip, vias are formed in only a selected portion of the via zones, which is a subset of the via zones. A channel layer is formed on the heater chip by forming a first layer on the heater chip. Flow channels are formed in the first layer from the vias to only those heaters on the heater chip that are disposed along the selected portion of the via zones. Bubble chambers are formed in the first layer around only those heaters on the heater chip that are disposed along the selected portion of the via zones.