Abstract: A fluid ejection device that includes a housing, a fluid reservoir disposed in the housing and a fluid ejection head. A revolving maintenance station that includes an ejection head wiper and an ejection head capping device is movably attached to the housing and is configured for rotation to selectively position the ejection head wiper or the ejection head capping device adjacent to 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 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 fluid reservoir for a fluid ejection head structure and a method for priming a fluid ejection head for a fluid dispensing device. The fluid reservoir includes an enclosed fluid cavity therein configured for containing fluid, a fluid outlet in fluid flow communication with the enclosed fluid cavity, and a flow inducing pump attached to the fluid reservoir opposite the fluid outlet.

Abstract: A fluid ejection device that includes a housing, a fluid reservoir disposed in the housing and a fluid ejection head. A revolving maintenance station that includes an ejection head wiper and an ejection head capping device is movably attached to the housing and is configured for rotation to selectively position the ejection head wiper or the ejection head capping device adjacent to the fluid ejection head.

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 unitary, molded fluid reservoir body to which a fluid ejection head substrate is attached. The unitary, molded fluid reservoir body includes one or more discrete fluid chambers therein. Each of the one or more fluid chambers have an open top, side walls, and sloped bottom walls attached to the side walls, wherein each of the one or more fluid chambers terminates in a fluid supply via, and wherein the sloped bottom walls have an angle ranging from about 6 to about 12 degrees relative to a plane orthogonal to the sidewalls. An ejection head support face is disposed opposite the open top for attachment of a single fluid ejection device to the ejection head support face for ejecting fluid provided from the one or more chambers through the one or more fluid supply vias.

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 unitary, molded fluid reservoir body to which a fluid ejection head substrate is attached. The unitary, molded fluid reservoir body includes one or more discrete fluid chambers therein. Each of the one or more fluid chambers have an open top, side walls, and sloped bottom walls attached to the side walls, wherein each of the one or more fluid chambers terminates in a fluid supply via, and wherein the sloped bottom walls have an angle ranging from about 6 to about 12 degrees relative to a plane orthogonal to the sidewalls. An ejection head support face is disposed opposite the open top for attachment of a single fluid ejection device to the ejection head support face for ejecting fluid provided from the one or more chambers through the one or more fluid supply vias.