G - Physics – 01 – D
Patent
G - Physics
01
D
101/96.0218
G01D 15/16 (2006.01) B41J 2/02 (2006.01) B41J 2/165 (2006.01)
Patent
CA 1122642
ABSTRACT OF THE DISCLOSURE A system for priming liquid ink writing instruments such as ink jet writers and capillary ink pens is disclosed. A source of ink is pressurized to force ink through the ink jet or other pen so that a small droplet is formed at the jet or pen outlet. As the drop forms at the jet or pen, it is eventually drawn away into an adjacent orifice, due to capillary action. An integrated priming pump serves both to pressurize the ink source to form the ink droplet and to apply a vacuum to the orifice to remove the ink drawn away by capillary action. A pressure release valve ensures that the ink jet or pen is not overpressurized during priming. In ink jet applications, the drop removal orifice is formed as a portion of the droplet charging ring.
316649
Gould Inc.
Sherman
LandOfFree
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