Ink jet print head having a projecting ejection electrode

An ink jet print head using an electrostatic field and being capable of printing characters and letters with a high precision includes an ink chamber for keeping therein ink including charged toner particles, an ejection opening for establishing connection between the ink chamber and an external spa...

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Bibliographic Details
Main Authors SUETSUGU; JUNICHI, UEMATSU; RYOSUKE, HAGIWARA; YOSHIHIRO, SHIMA; KAZUO, MINEMOTO; HITOSHI
Format Patent
LanguageEnglish
Published 01.09.1998
Edition6
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:An ink jet print head using an electrostatic field and being capable of printing characters and letters with a high precision includes an ink chamber for keeping therein ink including charged toner particles, an ejection opening for establishing connection between the ink chamber and an external space, an ejection electrode arranged to be slightly projected from the ejection opening, a cataphoresis electrode disposed on a side opposing to the ejection opening of the ink chamber, an opposing electrode arranged to oppose the ejection electrode with a recording media therebetween, a cataphoresis voltage source for applying a predetermined voltage to the cataphoresis electrode, and an ejection voltage source for applying a predetermined pulse voltage to the ejection electrode. The ejection electrode is coated with a hydropholic insulating resin.
Bibliography:Application Number: US19960763838