Ink delivery system for an inkjet pen having an automatic pressu

Details Ink delivery system for an inkjet pen having an automatic pressu Ink delivery system for an inkjet pen having an automatic pressu

1996-08-30

1999-03-09

Lund, Valerie

Incremental printing of symbolic information

Ink jet

Controller

347 85, B41J 2175, B41J 211

Patent

active

058807489

ABSTRACT:
An ink delivery system for an ink jet printing system having a printhead for ejecting droplets of ink, the printhead receiving ink at a controlled pressure, the controlled pressure having a specified pressure range that assures stable printhead operation which includes a replaceable ink supply removeably mounted in an ink supply station, and a controllable valve. The valve inlet is in fluid communication with the replaceable ink supply. An accumulator in fluid communication with the valve outlet and the printhead has a sensor coupled to the accumulator to sense the state of the accumulator. A controller electrically coupled to the sensor and electrically coupled to the controllable valve opens and closes the valve in response to the state of the accumulator.

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Gottschalk, "Sensing Technology Goes Consumer", Design News, Jan. 20, 1992, pp. 68-74.

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