Nozzle array for printhead
First Claim
Patent Images
1. An inkjet printhead assembly for use with an inkjet printer, the printhead assembly comprising:
- an ink reservoir, anda printhead attached to the reservoir, said printhead containing a plurality of nozzles on a nozzle plate for releasing ink from the printhead toward a medium to be printed, the nozzles being positioned at locations relative to the printhead corresponding to a plurality of desired print locations;
a plurality of resistance heater elements powered by electrical signals generated by a printer controller, each of the heater elements being positioned adjacent to and operatively associated with a nozzle for heating ink for release by the associated nozzle in response to an electrical signal received from the printer controller;
a plurality of ink chambers in flow communication with the reservoir and an associated nozzle for receiving ink to be heated;
a plurality of flow paths for flowably directing ink from the reservoir to each of the chambers,wherein at least two nozzles and their associated heater elements, chambers and flowpaths are provided for each print location.
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Abstract
A nozzle plate for an inkjet printer including a first nozzle array having a plurality of nozzles, each of which is positioned to correspond to a desired print location, with the print location of each of the nozzles of the first array being different from one another; and a second nozzle array having a plurality of nozzles, each of which is positioned to correspond to a desired print location, with the print location of each of the nozzles of the second array corresponding to one of the print locations of the first array such that the first and second arrays each have one nozzle corresponding to each desired print location.
96 Citations
36 Claims
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1. An inkjet printhead assembly for use with an inkjet printer, the printhead assembly comprising:
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an ink reservoir, and a printhead attached to the reservoir, said printhead containing a plurality of nozzles on a nozzle plate for releasing ink from the printhead toward a medium to be printed, the nozzles being positioned at locations relative to the printhead corresponding to a plurality of desired print locations; a plurality of resistance heater elements powered by electrical signals generated by a printer controller, each of the heater elements being positioned adjacent to and operatively associated with a nozzle for heating ink for release by the associated nozzle in response to an electrical signal received from the printer controller; a plurality of ink chambers in flow communication with the reservoir and an associated nozzle for receiving ink to be heated; a plurality of flow paths for flowably directing ink from the reservoir to each of the chambers, wherein at least two nozzles and their associated heater elements, chambers and flowpaths are provided for each print location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A printhead assembly for an inkjet printer, comprising:
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an ink reservoir and a printhead attached to the reservoir containing ink ejection means operatively associated with the ink reservoir for selectively ejecting ink from the printhead in patterns corresponding to indicia to be printed by the printer, the ink ejection means comprising a silicon substrate having a plurality of electrically activatable heater elements for heating ink; a nozzle plate attached to the silicon substrate and having a plurality of nozzles, one each of which is located adjacent one of the heater elements on the substrate for releasing ink heated by the heater elements from the printhead at desired print locations, said nozzle plate having at least two nozzles for each print location. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A nozzle plate for an inkjet printer, the nozzle plate comprising a first nozzle array having a plurality of nozzles, each of which is positioned to correspond to a desired print location, with the print location of each of the nozzles of the first nozzle array being different from one another;
- and a second nozzle array having a plurality of nozzles, each nozzle of the second nozzle array being positioned to correspond to a desired print location, with the print location of each of the nozzles of the second array corresponding to one of the print locations of the first nozzle array such that the first and second nozzle arrays each have a nozzle corresponding to each desired print location so that at least two nozzles are provided for each print location.
- View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. An inkjet printhead assembly for use with an inkjet printer, the printhead assembly comprising:
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an ink reservoir, and a printhead attached to the reservoir, said printhead containing a plurality of nozzles on a nozzle plate for releasing ink from the printhead toward a medium to be printed, the nozzles being positioned at locations relative to the printhead corresponding to a plurality of desired print locations; a plurality of resistance heater elements powered by electrical signals generated by a printer controller, each of the heater elements being positioned adjacent to and operatively associated with a nozzle for heating ink for release by the associated nozzle in response to an electrical signal received from the printer controller; a plurality of ink chambers in flow communication with the reservoir and an associated nozzle for receiving ink to be heated; at least one flow path for flowably directing ink from the reservoir to each of the chambers, wherein at least two nozzles and their associated heater elements, chambers and flowpath are provided for each print location. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification