Electrostatic ink ejection printing head

Details Electrostatic ink ejection printing head Electrostatic ink ejection printing head

G - Physics

01

D

101/96.022

G01D 15/16 (2006.01) B41J 3/04 (1980.01)

Patent

CA 1086371

ELECTROSTATIC INK EJECTION PRINTING HEAD Abstract of the Disclosure An electrostatic ink ejection printing head uses an ink reservoir having small holes in its wall, the ink retained within the holes by surface tension. An electrostatic field is produced at each hole, as required, to overcome the surface tension and cause the ink to move into contact with a paper sheet to produce a dot. The holes can be in any desired predetermined formation. An electrode can be positioned opposite each hole, the paper between electrode and hole, or an electrode can be formed around or on either side of each hole. The electrodes are pulsed as necessary. - i -

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