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Title:
LIQUID EJECTION DETECTING METHOD AND DETECTOR, AND INK JET RECORDER
Document Type and Number:
Japanese Patent JP2006159694
Kind Code:
A
Abstract:

To store detection results of liquid ejection/nonejection from each nozzle of a head in the head itself.

The liquid ejection detector comprises an electrode 9 arrange at such a position as touching liquid ejected from a head 6 before the liquid separates from the head 6, a power supply 11 for applying a predetermined voltage to a circuit including the head 6 and the electrode 9, a voltage detector 13 conducting before the liquid ejected from the head 6 separates from the head 6 and detecting ejection state based on the current flowing through the circuit, and a memory 60 mounted on the head and storing a high level output signal 99 from a voltage comparator 97 when the voltage detected by the voltage detector 13 has a predetermined level Vth.


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Inventors:
MURAYAMA HIROYUKI
MISUMI YOSHINORI
MATSUI TAKAHIRO
ISHINAGA HIROYUKI
Application Number:
JP2004355885A
Publication Date:
June 22, 2006
Filing Date:
December 08, 2004
Export Citation:
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Assignee:
CANON KK
International Classes:
B41J2/175; B05C5/00; B05D1/26
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura



 
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