Resources Contact Us Home
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
Method for manufacturing a porous synthetic diamond material
Optical line terminal
Steering arm
Automotive docking station
Oleaginous pharmaceutical and cosmetic foam
Fabrication technique for gallium nitride substrates
  Randomly Featured Patents
Image scanner for use in image forming apparatus
Method, system, and computer program product for identifying web pages
Hydrosulfide-groups containing multi-metal inorganic polymeric complex and method of making same
Article transportation processing system
Fuse patterns and method of manufacturing the same
Dental tip
Fluoropolymer barrier material
Automatic marine cathodic protection system using galvanic anodes
Hydrocarbon recovery facilitated by in situ combustion utilizing horizontal well pairs
Methods and systems for voter-verified secure electronic voting