Electrostatic attraction fluid ejecting method and apparatus

Details Electrostatic attraction fluid ejecting method and apparatus Electrostatic attraction fluid ejecting method and apparatus

2011-04-12

2011-04-12

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S029000, C347S073000, C347S022000

Reexamination Certificate

active

07922295

ABSTRACT:
An ink jet apparatus electrifies ink in a nozzle, and ejects the ink from an ink ejecting hole onto a printing medium by a first electric field generated between the nozzle and the printing medium. The apparatus includes an ink catching device including an ink catching portion adjacent to the nozzle that catches an ejected substance. Between the nozzle and the ink catching portion, the apparatus applies a voltage for generating a second electric field which (i) causes an ejected substance, formed from the ink or the ink whose viscosity is changed, to be ejected from the nozzle, and (ii) causes the ink catching portion to attract the ejected substance. The apparatus, utilizes an electrostatic force to eject fluid, removes a clogging of an ejection head at any position, realizes less initial ejection fluctuation and improves the reliability of ejection.

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