Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Printhead with elongate array of nozzles and distributed pulse dampers










Image Number 10 for United States Patent #7475976.

A printhead for an inkjet printer that has an elongate array of nozzles (68) for ejecting ink and ink conduits for supplying the array of nozzles with ink. The ink conduits extend adjacent the elongate array and have a plurality of pulse dampers individually in fluid communication with the ink conduits, each containing a volume of gas for compression by pressure pulses in the ink conduits, distributed along the length of the elongate array. A pressure pulse moving through an elongate printheads, such as a pagewidth printhead, can be damped at any point in the ink flow line. However, the pulse will cause nozzle flooding as it passes the nozzles in the printhead integrated circuit, regardless of whether it is subsequently dissipated at the damper. By incorporating a number of pulse dampers into the ink supply conduits immediately next to the nozzle array, any pressure spikes are damped at the site where they would otherwise cause detrimental flooding.








 
 
  Recently Added Patents
ZNF217 a new prognostic and predictive biomarker of recurrent invasive and metastatic phenotypes in breast cancer
Deadline-driven parallel execution of queries
Method for inhibiting thermal run-away
Cooler
Optical modulator module
Transmitter having a programmable amplifier operating class
Surveillance apparatus and method for wireless mesh network
  Randomly Featured Patents
Fuel dispensing control, authorization and accounting system
Printing systems
Fireplace grate
Vehicle seatbelt apparatus
Ethylene copolymer and ethylene/.alpha.-olefin copolymer composition and propylene polymer composition both containing the ethylene copolymer
Apparatus for extracting liquid and foam from gas
Pesticidal polyhaloalkene derivatives
Methods and apparatus for mass spectrometry
Applicator for applying liquids to the human body
Bottom-gate thin film transistor and method of fabricating the same