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
Rim for a TV receiver
Light-emitting device package structure
Universal tablet and smartphone holder
Method of and apparatus for image denoising
Austenitic stainless steel welding wire and welding structure
Methods, systems, and products for providing ring backs
Systems and methods for performing live chat functionality via a mobile device
  Randomly Featured Patents
Control for automotive passive restraint system with manual retrigger
Clock generator circuit providing an output clock signal from phased input clock signals
3'-azido-2',3'-dideoxy-5-methylcytidine anti-viral composition
Puffer type gas interrupter
Media storage systems and cartridge-handling apparatus therefor
Polycarbonate films of low flammability and improved stress crack resistance
Air filtration media pack, filter element, air filtration media, and methods
Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks
Method and apparatus for compressing and decompressing image data
Subscriber electric power load control system