Abstract:
A fluid ejector assembly includes a container that stores a fluid to be ejected, a heat sink attached to the container, and a die module bonded to the heat sink. The heat sink is molded from a polymer that has at least one thermally conductive filler material mixed into the polymer. The heat sink is shaped to dissipate heat. The fluid ejector assembly is manufactured by mixing the at least one thermally conductive filler material with the polymer, molding the heat sink using the polymer and thermally-conductive filler material mixture, and attaching the heat sink to a die module and, optionally, to a fluid-containing container.
Abstract:
A particular ink tank, and therefore its characteristics, are determined by detecting the existence or absence of magnets at predetermined positions on the ink tank. The detection of the magnets is performed by hall effect sensors located on an ink tank holder of an image recording apparatus when the ink tank is positioned in the ink tank holder.
Abstract:
An ink tank and ink tank support structure which contains structural elements which are designed to permit proper installation of the ink tank in the ink tank support structure while minimizing the chances of improper installation of the ink tank in the ink tank structure. A primary ink tank seal is provided in the ink tank, and a relatively low compressive force seal is provided between the ink tank support structure and the ink tank to reduce leakage of fluid from the tank and limit evaporation of fluid from the tank despite repeated insertions and removals of the ink tank from the ink tank support structure. A variable capacity ink tank and an ink tank with staggered height walls are disclosed, as well as a code reader for determining characteristics of ink tanks.
Abstract:
An user interface for accepting three dimensional information (such as x, y and z axis positioning information) for input into a computer, printer, copier or other electronic device. In addition to indicating the x and y axis position coordinates of the input, the input pad of the user interface also registers a z axis coordinate based on the pressure applied by the operator on the outer surface of the input pad. This z axis force component is enabled by the force sensing layers of parallel conductors in the input pad.
Abstract:
A method for joining fluid containers and fluid ejectors in a fluid ejecting device are provided. The fluid container includes one or more heat stakes and a substrate includes one or more apertures for receiving the heat stakes and one or more three-dimensional features in the vicinity of the one or more apertures. The fluid ejector and optionally an elastic member are interposed between the fluid container and the substrate. Thermal energy is applied to the one or more heat stakes so that the one or more heat stakes soften to occupy the apertures and three-dimensional features of the substrate and pressure is applied to maintain contact between the fluid container, elastic member, fluid ejector and substrate. The present invention is also directed to substrate including one or more apertures for receiving heat stakes and one or more three-dimensional features in the vicinity of the one or more apertures.
Abstract:
A system, method and structures for dissipating heat away from a thermal fluid ejector modules through a thermally-conductive carriage molded from a polymer to the ambient air surrounding the structure upon which the thermally-conductive fluid ejector carriage translates. The heat is transferred via conduction and convection from the thermally-conductive fluid ejector carriage across a thin volume of air trapped between a thermally-conductive carriage rod guide, enclosed on each end by thermally-conductive carriage rod guide bearings, and the thermal contact of the thermally-conductive carriage rod guide bearings with the surface of at least one thermally-conductive carriage guide rod which the thermally-conductive fluid ejector carriage translates.
Abstract:
An optical sensor has a sensor compensation to compensate for sensor degradation due to airborne contaminations in the operating environment. For example, in a thermal ink jet printing environment, the thermal ink jet operation produces misting or splashing of the thermal ink jet droplets, causing a gradual degradation of the sensor sensitivity due to a surface accumulation of the ink jet droplets. The optical sensor device includes an optical emitter emitting an optical signal according to an emitter input, an optical detector disposed to detect the optical signal and output a detector output having an output level according to the detected optical signal, a variable attenuator having an adjustable attenuation setting, and a controller adjusting the attenuation setting of the variable attenuator. During an adjustment operation, the controller determines the attenuation setting at which the output level of the detector output exceeds a predetermined value, and accordingly sets the variable attenuator to operate the detector output at an output level exceeding the predetermined value by a margin. Compensations for the optical emitter and the optical detector are disclosed, including the use of a variable pulse-width modulated signal.
Abstract:
A refillable fluid container system having a communication channel between the manifold and fluid reservoir that allows air to vent from the manifold to an air accumulation area with in the fluid resevoir.
Abstract:
A liquid ink cartridge, such as ink jet ink cartridge, includes a container defining an ink reservoir, the ink reservoir having an ink outlet at one end and capable of receiving a supply of ink in the ink reservoir; and an ink follower composition located in the ink reservoir apart from the ink outlet. The ink follower composition includes a viscous gel material that provides a negative pressure in the ink reservoir.
Abstract:
An ink tank and ink tank support structure which contains structural elements which are designed to permit proper installation of the ink tank in the ink tank support structure while minimizing the chances of improper installation of the ink tank in the ink tank structure. A primary ink tank seal is provided in the ink tank, and a relatively low compressive force seal is provided between the ink tank support structure and the ink tank to reduce leakage of fluid from the tank and limit evaporation of fluid from the tank despite repeated insertions and removals of the ink tank from the ink tank support structure. A variable capacity ink tank and an ink tank with staggered height walls are disclosed, as well as a code reader for determining characteristics of ink tanks.