High resolution inkjet printer
AssigneeHewlett-Packard Development Company, L.P.
InventorsRio Rivos, Lawrence White, Ed Friesen, John Rausch
Life of this patent
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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.
Claims35
A printhead for an inkjet printer providing high resolution printing, comprising:
- a substrate including at least one ink ejector on a surface of the substrate;
- a metal orifice plate having a plurality of orifices disposed through the orifice plate from a first surface proximate the surface of the substrate to a second surface distal to the surface of the substrate, the orifice plate having a thickness in the range of about 6 to 19 microns and at least two orifices of the plurality of orifices having centers at the second surface spaced apart by a distance having a range of about 15 to 75 microns and each of the at least two orifices having an orifice opening at the second surface with a diameter having a range of about 3 to 20 microns;
- and
- a barrier layer securing the orifice plate to the substrate, the barrier layer defining a plurality of firing chambers each arranged in correspondence with a respective ink ejector,
- wherein high resolution inkjet printing is realized.
An inkjet printer having at least one printhead element for depositing ink with a high resolution upon a print medium, comprising:
- a print medium support;
- a printhead including a substrate including at least one ejector on a surface of the substrate and a metal orifice plate affixed to the substrate and having a plurality of orifices disposed through the orifice plate from a first surface proximate the surface of the substrate to a second surface distal to the surface of the substrate, the orifice plate having a thickness in the range of about 6 to less than 19 microns and at least two orifices of the plurality of orifices having centers at the second surface spaced apart by a distance having a range of about 15 to 75 microns and each of the at least two orifices having an orifice opening at the second surface with a diameter having a range of about 3 to 20 microns;
- a polymeric barrier layer securing the orifice plate to the substrate, the barrier layer defining a plurality of firing chambers each arranged in correspondence with a respective ejector;
- a printhead support mechanism;
- and
- a controller to provide motion of the print medium support and printhead relative to each other and to cause activation of ink ejectors.
A method of manufacturing a printhead for an inkjet print cartridge, comprising:
- 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.
Dependencies are inferred from the claim text.