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
Provision of downlink packet access services to user equipment in spread spectrum communication network
Extreme ultraviolet light source device and method for generating extreme ultraviolet light
Computerized information and display methods
Multi-radio coexistence
Modified polyolefin resin for glass fiber treatment, surface-treated glass fiber, and fiber-reinforced polyolefin resin
Method and apparatus for rebuilding data in a dispersed data storage network
  Randomly Featured Patents
Method for wrapping a floral grouping with water holding and releasing material
.beta.-Carbolin-3-carboxylic acid derivatives
Fiber optic splice closure and protection apparatus
Content sharing methods and systems
Derivatized fullerene-based dopants for organic semiconductors
Aqueous ink, inkjet recording ink and inkjet recording method
BMY-41950 antitumor antibiotic
Planar programmable metallization memory cells
Process for the removal of solids from an oil
Decorative plaque