Abstract: A viscoelastic liquid flow splitter includes a flow splitter body having a first bore including a first bore outlet and a first bore inlet, and a second bore including a second bore outlet and a second bore inlet. The bore inlets are substantially parallel to each other and the bore outlets diverge from each other at an angle. The flow splitter also includes a compression fitting having a first and a second tubular portion fluidically coupled to the first and second bore inlets where the tubular portions are configured to fluidically couple to a double barreled viscoelastic liquid dispensing syringe.

Abstract: A replaceable auger assembly includes a body having at least one material inlet defined therein and an auger disposed within the body. The auger includes a helical portion disposed about a shaft portion and a positive shutoff mechanism. The positive shutoff mechanism is configured to selectively close the material inlet.

Abstract: This present invention is embodied in a printing system with thermally efficient heat transfer capabilities for reducing dimpling of a nozzle member during fabrication of the printhead portion of an inkjet printer. The printing system of the present invention includes a printhead assembly and an ink supply for printing ink on print media. The printhead assembly includes a printhead body having a heat transfer device, ink channels and a nozzle member having plural nozzles coupled to respective ink channels. The nozzle member is secured to the printhead body with a suitable adhesive layer. The heat transfer device can be defined by a portion of or the entire printhead body for reducing thermal expansion of the printhead body during exposure to heat.

Abstract: A technique for fabricating datum surfaces on a print cartridge body. One technique includes fixing the print cartridge in a tooling fixture after the printhead has been affixed to the body, performing a position measurement on the fixed print cartridge to obtain position measurement data, and using the position measurement data, machining precisely located datum surfaces.

Abstract: A technique for fabricating datum surfaces on a print cartridge body. One technique includes fixing the print cartridge in a tooling fixture after the printhead has been affixed to the body, performing a position measurement on the fixed print cartridge to obtain position measurement data, and using the position measurement data, machining precisely located datum surfaces.

Abstract: This present invention is embodied in a printing system and method for inducing shrinkage-tensioning of a flexible nozzle member of a printhead portion of an inkjet printer with an adhesive and novel arrangement. The printing system of the present invention includes a nozzle member securely coupled to a printhead body with an adhesive arrangement that allows shrinkage-induce tensioning of the nozzle member. The adhesive arrangement includes having an adhesive located between a top portion of the printhead body and the flexible nozzle member. The top portion has a mechanical structure such that it induces tensioning of the flexible nozzle member during thermal expansion of the adhesive. Namely, the adhesive arrangement of the printing system of the present invention is capable of efficiently tensioning, and thus, flattening the flexible nozzle member during the adhesion process of the nozzle member. As a result, trajectory errors of ejected ink droplets from the nozzles are reduced.

Abstract: In one embodiment of the invention, a flexible tape has formed on it conductors for being connected to a printhead substrate. The conductors on the tape are coated with an insulating layer, and exposed ends of the conductors extend from the layer. A headland is formed on a plastic print cartridge for receiving the printhead substrate having the exposed conductors extending from one or more edges of the printhead substrate. An adhesive bead is formed on the headland so that when the printhead is properly positioned on the headland, the adhesive contacts the conductors to encapsulate and insulate one exposed side of the conductors. A second adhesive or encapsulant bead is deposited over the opposite side of the conductors to encapsulate and insulate the remaining exposed regions of the conductors. In this manner, the combined insulating action of the insulating layer and the two insulating adhesive beads prevents the conductors from being shorted together by ink which may flow in the vicinity of the conductors.