Abstract: A magnetic sensing device includes a first electrode, a second electrode, a first magnetic shield, a second magnetic shield, and a sensor. The first magnetic shield forms at least a portion of the first electrode. The second magnetic shield includes a first region that forms at least a portion of the first electrode and a second region that forms at least a portion of the second electrode. The sensor is positioned between the first and second magnetic shields and is electrically connected in series between the first and second electrodes.

Abstract: A method of manufacturing a fluidic channel through a substrate includes etching an exposed section on a first surface of the substrate, and coating the etched section of the substrate. The etching and the coating are alternatingly repeated until the fluidic channel is formed.

Abstract: A fluid ejection device includes drive circuitry for a heating element, wherein at least part of the drive circuitry is positioned proximate to and within 60 microns of the heating element.

Abstract: An orifice plate of a fluid ejection device comprises a rectangular plate body having an edge and a plurality of nozzle arrays, wherein the edge has a pair of recesses therealong, and a break tab in between the pair of recesses along the edge.

Abstract: In one embodiment, a fluid ejection device comprises a substrate having a first surface, and a fluid slot in the first surface. The device further comprises a fluid ejector formed over the first surface of the substrate, and a chamber layer formed over the first surface of the substrate. The chamber layer defines a chamber about the fluid ejector, wherein fluid flows from the fluid slot towards the to be ejected therefrom. The chamber layer has a discontinuity, wherein the discontinuity is positioned over the fluid slot.

Abstract: A process of manufacturing a printhead of a print bar by applying, on the same side of a glass substrate, a fluid firing device, a fluid reservoir supplying fluid to the fluid firing device, and drive electronics supplying power and signals to the fluid firing device. The fluid firing device has a firing chamber, a heating element beneath the firing chamber, a fluid ejection orifice, and a fluid channel directing fluid from the fluid reservoir to the heating element to be ejected through the orifice. The fluid firing device has thin film layers. The thin film layers include a conductor layer that forms conductor traces that couple with the drive electronics. The thin film layers also include a cross-linked photoimagable polymer layer that forms the fluid channel, the firing ejection nozzle, and the firing chamber. In one embodiment, the firing chamber and the fluid ejection orifice are positioned over the heating element.

Abstract: A heating element of a printhead has a conductive layer deposited over a substrate, and a resistive layer deposited over and in electrical contact with the conductive layer.

Abstract: A rejuvenation station has a housing with a first area adapted to hold a fluid supply, and a second area adapted to hold a printer cartridge. In the first area is a first fluidic interconnect that is adapted to couple with the fluid supply. In the second area is a second fluidic interconnect that is adapted to couple with the printer cartridge. A fluid path in the housing couples the fluidic interconnects. An actuator extracts fluid from at least one of the fluid supply and the printer cartridge, and inserts fluid into the printer cartridge through the fluid path.

Abstract: A thermal optical switching cell for controlling the transmission of light through optical channels that includes a switching conduit containing a working fluid that is index of refraction matched to the optical channels and an amount of light diverting material that is substantially immiscible in the working fluid and is not index of refraction matched to the optical channels. Micro heaters generate pressure pulses in the working fluid for moving the light diverting material between switch states.