Ink jet recording apparatus, and method with control of ink drop

Details Ink jet recording apparatus, and method with control of ink drop Ink jet recording apparatus, and method with control of ink drop

1992-10-28

1997-07-08

Bobb, Alrick

Incremental printing of symbolic information

Ink jet

Ejector mechanism

B41J 201, B41J 206

Patent

active

056466595

ABSTRACT:
An ink jet recording apparatus of the present invention has an ink jet recording head having an orifice from which an ink drop is ejected and an energy generation means for ejecting an ink fluid in the orifice. A first electrode is formed in the orifice and is connected electrically to the ink fluid. A second electrode is formed in an opposite position to the orifice with a designated distance from the orifice. A voltage controller applies a first voltage during a time period from a time when an ink fluid is ejected from the orifice to a time when the ink fluid is separated in 2 or more ink drops during traveling, and immediately after applying the first voltage, applies a second voltage which has an identical polarity to a polarity of the first voltage and has an absolute value less than an absolute value of the first voltage.

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