Patent ID: 6024440
Filing Date: 2000-02-15
Classification: B41J

Abstract:
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.