Abstract: A method of manufacturing a printhead for an inkjet print cartridge includes depositing a metal film on a mandrel; separating the metal film from the mandrel, mounting the metal film to a work holder, modifying the metal film while the metal film remains mounted on the work holder, laminating the metal film to a barrier material and semiconductor substrate to form a printhead, and applying heat to the printhead such that the printhead barrier layer is cured and the metal film is bonded thereto. Laminating the metal film to the barrier material includes preheating the barrier material and placing the metal film on the preheated barrier material.

Abstract: A high-resolution printer includes a printhead having optimized features including 3 to 20 micron diameter orifices spaced apart from adjacent orifices by a distance of between about 15 and 75 microns. The orifice plate is electroformed and plated to a thickness ranging from about 6 to 19 microns. A barrier layer secures the orifice plate to a printhead substrate.

Abstract: A high-resolution printer includes a printhead having optimized features including 3 to 20 micron diameter orifices spaced apart from adjacent orifices by a distance of between about 15 and 75 microns. The orifice plate is electroformed and plated to a thickness ranging from about 6 to 19 microns. A barrier layer secures the orifice plate to a printhead substrate.

Abstract: Methods of forming thermal ink jet resistor structures for use in nucleating ink are described. In one embodiment, the method comprises forming a layer of conductive material over a substrate, and patterning and etching the layer of conductive material effective to form one or more arrays of resistors. Individual arrays comprise multiple, parallel-connected resistor elements and the resistor elements are configured such that failure of any one resistor element will not render its associated resistor array inoperative for nucleating ink. The resistor elements of individual arrays are formed such that collectively, the resistor elements are not independently addressable. Other embodiments are described.

Abstract: A thermal inkjet print head includes a temperature regulation system. The print head preferably includes a thermal inkjet print head and an array or array of Peltier devices in proximity to the thermal inkjet print head such that the array of Peltier devices can raise or lower the temperature of the thermal inkjet print head or components thereof.

Abstract: Methods of forming thermal ink jet resistor structures for use in nucleating ink are described. In one embodiment, the method comprises forming a layer of conductive material over a substrate, and patterning and etching the layer of conductive material effective to form one or more arrays of resistors. Individual arrays comprise multiple, parallel-connected resistor elements and the resistor elements are configured such that failure of any one resistor element will not render its associated resistor array inoperative for nucleating ink. The resistor elements of individual arrays are formed such that collectively, the resistor elements are not independently addressable. Other embodiments are described.

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.

Abstract: Thermal ink jet defect tolerant resistor designs are described. In one embodiment, a thermal ink jet resistor structure comprises a first resistor element and at least one other resistor element. The resistor elements are connected in parallel and have substantially the same resistances. The resistor elements are configured for redundancy such that if one of the resistor elements fails, one or more remaining resistor elements can function to effectuate ink ejection. In another embodiment, a thermal ink jet printer comprises multiple ink reservoirs configured for holding and ejecting ink toward a print medium. At least one resistor array is disposed within each ink reservoir. Each resistor array comprises multiple, redundant resistor elements that are connected in parallel with one another such that failure of any one resistor element will not render its associated ink reservoir inoperative.

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: Thermal ink jet defect tolerant resistor designs are described. In one embodiment, a thermal ink jet resistor structure comprises a first resistor element and at least one other resistor element. The resistor elements are connected in parallel and have substantially the same resistances. The resistor elements are configured for redundancy such that if one of the resistor elements fails, one or more remaining resistor elements can function to effectuate ink ejection. In another embodiment, a thermal ink jet printer comprises multiple ink reservoirs configured for holding and ejecting ink toward a print medium. At least one resistor array is disposed within each ink reservoir. Each resistor array comprises multiple, redundant resistor elements that are connected in parallel with one another such that failure of any one resistor element will not render its associated ink reservoir inoperative.

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.

Abstract: A printhead is used to eject printing fluid, such as ink, onto a printing medium. This printhead has an integrated heat-sink used to cool energy dissipation elements which propel the printing fluid from the printhead. The printhead includes an amorphous substrate carrying a structure of plural thin-film layers. Upon the substrate is defined a metallic heat sink layer covering substantially the entire plan-view shape of the substrate, and serving during operation of the printhead to distribute excess heat for dissipation. During manufacturing of the printhead, this thin-film metallic heat sink layer performs the additional function of preventing an element or compound present in the substrate from migrating into the thin-film layers.