Abstract: A fluidic dispensing device includes a fluid reservoir containing fluid. A stir bar is located in the fluid reservoir and has a magnet. A generator generates a rotating magnetic field to interact with the magnet. A controller determines a range of a predetermined phase lag between an angular rotational position of the stir bar and an angular rotational position of the rotating magnetic field, determines a status of a present phase lag based on the range of the predetermined phase lag, and takes predetermined action based on the status.

Abstract: A fluidic dispensing device includes a housing, and a fluid channel in the housing. The fluid channel has a channel inlet, a channel outlet, and a passage between the channel inlet and the channel outlet. The channel inlet is in fluid communication with an inlet port of a chamber. The channel outlet is in fluid communication with an outlet port of the chamber. The passage is in fluid communication with an opening in an exterior wall. The fluid channel has a first corner structure in the passage. A stir bar is located in the chamber to generate a fluid flow through the fluid channel when rotated. A first flow director member is positioned adjacent the channel inlet. The flow director member has a first surface structure that directs a portion of the fluid flow toward the first corner structure in the passage.

Abstract: A fluidic dispensing device has a body having a chamber with a perimetrical end surface, and a chip mounting surface defining a first plane and having a first opening. An ejection chip is coupled to the chip mounting surface. The ejection chip is in fluid communication with the first opening. The ejection chip has a fluid ejection direction that is substantially orthogonal to the first plane of the chip mounting surface. A diaphragm has a dome portion and a sealing surface. The sealing surface has a planar extent that surrounds the chamber. The sealing surface is in sealing engagement with the perimetrical end surface of the chamber to define a fluid reservoir in fluid communication with the first opening. The diaphragm has a deflection axis that is substantially parallel to the first plane of the chip mounting surface, and the dome portion is displaceable along the deflection axis.

Abstract: A fluidic dispensing device includes a housing having an exterior wall and a fluid reservoir. The exterior wall has a chip mounting surface defining a first plane and has a first opening. The fluid reservoir is in fluid communication with the first opening. An ejection chip is mounted to the chip mounting surface. The ejection chip is in fluid communication with the first opening. The ejection chip has a plurality of ejection nozzles oriented such that a fluid ejection direction is substantially orthogonal to the first plane. A stir bar is moveably confined within the fluid reservoir. The stir bar has a plurality of paddles and a rotational axis, with each of the plurality of paddles having a free end tip that intermittently faces toward the first opening that is in fluid communication with the ejection chip as the stir bar is rotated about the rotational axis.

Abstract: A fluidic dispensing device has a body that includes a base wall having an exterior base surface, and an interior perimetrical wall that extends from the base wall to define a chamber. The interior perimetrical wall has a perimetrical end surface. The body has an exterior wall extending away from the base wall. The exterior wall has a chip mounting surface defining a first plane, the base wall being oriented along a second plane, the first plane being orthogonal to the second plane. An ejection chip is mounted to the chip mounting surface of the body. A diaphragm is engaged with the perimetrical end surface of the chamber to define a fluid reservoir. A lid is attached to the body, with the diaphragm interposed between the lid and the body. The body and the lid define a split at a juncture of the lid and the body.

Abstract: A fluidic dispensing device includes a housing, and a fluid channel in the housing. The fluid channel has a channel inlet, a channel outlet, and a passage between the channel inlet and the channel outlet. The channel inlet is in fluid communication with an inlet port of a chamber. The channel outlet is in fluid communication with an outlet port of the chamber. The passage is in fluid communication with an opening in an exterior wall. The fluid channel has a first corner structure in the passage. A stir bar is located in the chamber to generate a fluid flow through the fluid channel when rotated. A first flow director member is positioned adjacent the channel inlet. The flow director member has a first surface structure that directs a portion of the fluid flow toward the first corner structure in the passage.

Abstract: A method for maintaining a fluidic dispensing device includes providing a fluidic dispensing device having a fluid reservoir containing fluid, the fluid reservoir being defined in part by a base wall, and having a stir bar located in the fluid reservoir adjacent to the base wall, and having a fluid ejection chip having a fluid ejection direction; positioning the fluidic dispensing device at a predetermined orientation, wherein the fluid ejection direction is oriented in a range of upward vertical, plus or minus 90 degrees; and rotating the stir bar in a first rotational direction starting with a first rotational speed and increasing rotational velocity from the first rotational speed to a second rotational speed.

Abstract: A fluid ejection head assembly having improved assembly characteristics and methods of manufacturing a fluid ejection head assembly. The fluid ejection head includes a fluid supply body having at least one fluid supply port in a recessed area therein and a semiconductor chip attached in the recessed area of the fluid supply body adjacent the fluid supply port using a thermal cure adhesive. A compression prevention body having a coefficient of thermal expansion ranging from about 1.0 to less than about 30 microns/meter per ° C. disposed adjacent to the fluid supply port of the fluid supply body and the semiconductor chip.

Abstract: A fluidic dispensing device includes a housing having a chamber that defines an interior space, and has an inlet port and an outlet port. A flow control portion has a flow separator feature. The flow separator feature is positioned adjacent the inlet port. A stir bar is located in the chamber, has a rotational axis, and has a plurality of paddles, with each paddle having a free end tip. The stir bar has a stir bar radius from the rotational axis to the free end tip. A guide portion confines the stir bar in a predetermined portion of the interior space of the chamber. A ratio of the stir bar radius and a clearance distance between the free end tip and the flow control portion is 5:2 to 5:0.025.

Abstract: A fluid ejection head assembly having improved assembly characteristics and methods of manufacturing a fluid ejection head assembly. The fluid ejection head includes a fluid supply body having at least one fluid supply port in a recessed area therein and a semiconductor chip attached in the recessed area of the fluid supply body adjacent the fluid supply port using a thermal cure adhesive. A compression prevention body having a coefficient of thermal expansion ranging from about 1.0 to less than about 30 microns/meter per ° C. disposed adjacent to the fluid supply port of the fluid supply body and the semiconductor chip.

Abstract: A fluidic dispensing device includes a housing having an exterior wall and a chamber. The exterior wall has a chip mounting surface defining a first plane and having an opening. The chamber has an interior space. The chamber has an inlet port and an outlet port, the inlet port being separated a distance from the outlet port. An ejection chip is mounted to the chip mounting surface of the exterior wall. The ejection chip is in fluid communication with the opening. A fluid channel is formed in the housing that is in fluid communication with each of the opening, the inlet port, and the outlet port.

Abstract: A fluidic dispensing device includes a housing having an exterior wall and a chamber. The exterior wall has a chip mounting surface and an opening. The chamber defines an interior space having a base wall and a port coupled in fluid communication with the opening. An ejection chip is in fluid communication with the opening. A stir bar is located in the chamber. The stir bar has a rotational axis and a plurality of paddles that radially extend away from the rotational axis. Each of the plurality of paddles has an axial extent having a first tier portion and a second tier portion. The first tier portion has a first radial extent and the second tier portion has a second radial extent, wherein the first radial extent is greater than the second radial extent.

Abstract: A fluidic dispensing device includes a housing having an exterior wall and a chamber. The exterior wall has a chip mounting surface defining a first plane and has an opening. The chamber has a port coupled in fluid communication with the opening. An ejection chip is mounted to the chip mounting surface and is oriented along the first plane, and is in fluid communication with the opening. The ejection chip has a fluid ejection direction that is substantially orthogonal to the first plane. A stir bar is located in the chamber, and has a rotational axis. The rotational axis of the stir bar is oriented in an angular range of perpendicular, plus or minus 45 degrees, relative to the fluid ejection direction.

Abstract: A fluid interconnect system including a mating component having an inlet port and a liquid outlet, the inlet port configured to support an interconnector and the liquid outlet configured to engage with a print cartridge so that liquid flows from a liquid source, through the interconnector and the inlet port, and out of the liquid outlet into the print cartridge.

Abstract: A fluidic dispensing device includes a housing having an exterior wall and a chamber. The exterior wall has a chip mounting surface defining a first plane and has an opening. The chamber has an interior space and has a port coupled in fluid communication with the opening. An ejection chip is mounted to the chip mounting surface of the exterior wall, and is oriented along the first plane. The ejection chip is in fluid communication with the opening. The ejection chip has a plurality of ejection nozzles. A stir bar is located in the chamber. The stir bar has a rotational axis. A guide portion confines the stir bar in a predetermined portion of the interior space of the chamber at a predefined orientation.

Abstract: A fluidic dispensing device includes a housing having an exterior wall and a fluid reservoir. The exterior wall has a chip mounting surface defining a first plane, and has an opening in fluid communication with the fluid reservoir. An ejection chip is mounted to the chip mounting surface of the housing and is in fluid communication with the opening. The ejection chip has a plurality of ejection nozzles oriented such that a fluid ejection direction is substantially orthogonal to the first plane. A plurality of stir bars are moveably confined within the fluid reservoir. Each of the plurality of stir bars has a respective plurality of paddles, each having a free end tip. The free end tip of the respective plurality of paddles of at least one stir bar intermittently faces toward the opening as the plurality of stir bars rotate.

Abstract: A fluid interconnect system including a mating component having an inlet port and a liquid outlet, the inlet port configured to support an interconnector and the liquid outlet configured to engage with a print cartridge so that liquid flows from a liquid source, through the interconnector and the inlet port, and out of the liquid outlet into the print cartridge.

Abstract: A fluid interconnect system including a mating component having an inlet port and a liquid outlet, the inlet port configured to support an interconnector and the liquid outlet configured to engage with a print cartridge so that liquid flows from a liquid source, through the interconnector and the inlet port, and out of the liquid outlet into the print cartridge.

Abstract: A consumable supply item for an imaging device holds an initial or refillable volume of fluid. Users orient a housing to deplete the fluid in a direction of gravity toward a bottom surface of the interior en route to an exit port. The imaging device has a rotating latch to keep in place the supply item during use Users activate the latch to eject the supply item. The latch mates with a notch on the supply item. A first face of the notch angles to allow the latch to swing into and away from contact with the notch while a second face substantially parallels a side of the latch when the latch is engaged with the first face. The faces have differing angles and differing lengths. Further embodiments note angular degrees, biasing members, container slots, and consumer features of the supply item, to name a few.

Abstract: A method of controlling a height of an encapsulant material on an inkjet printhead is provided. The method includes dispensing the encapsulant material on an outer portion of the inkjet printhead. The encapsulant material is then depressed to reduce its height on the outer portion of the inkjet printhead. The encapsulant material may be depressed directly after dispensing or before it completely cures. The encapsulant material may be completely cured before reducing its height. The height of the cured encapsulant material may be reduced by removing a top portion of the encapsulant material through machining operation. Reducing the height of the encapsulant material on the inkjet printhead minimizes the distance of the nozzle plate of the inkjet printhead to the printing media, thus improving print quality.