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
Case for electronic device
Antenna array system
Polarization-coupled ferroelectric unipolar junction memory and energy storage device
Inducement of organogenetic tolerance for pancreatic xenotransplant
Modular utility rack
Gyroscope utilizing torsional springs and optical sensing
Method and device for monitoring and analyzing signals
  Randomly Featured Patents
Combating fish parasites
Cassette type feed apparatus
Reagent treatment cartridge
Process for the preparation of aromatic carbamates and isocyanates
Interconnect structure including a modified photoresist as a permanent interconnect dielectric and method of fabricating same
Method for producing L-glutamic acid
Semiconductor memory device with bi-directional read and write data transport
Process for directly converting an aldehyde into an ethylene ester
Input channel diagnostics
Apparatus for sealing passages through a concrete floor and about a conductor