Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2008-04-23
2011-11-29
Peng, Charlie (Department: 2883)
Incremental printing of symbolic information
Ink jet
Controller
C347S019000
Reexamination Certificate
active
08066343
ABSTRACT:
The invention relates to a liquid detecting apparatus that drives a liquid detecting unit that outputs two detection signals having phases opposite to each other in accordance with the amount of liquid. The liquid detecting apparatus according to an aspect of the invention includes: a driving unit that outputs a driving signal to the liquid detecting unit; a differential amplifying unit that performs differential amplification on said two detection signals that are output from the liquid detecting unit on the basis of the driving signal so as to output a differential amplification detection signal; and a signal detecting unit that makes a judgment as to whether the amount of liquid is not less than a predetermined amount or not by means of the differential amplification detection signal input from the differential amplifying unit.
REFERENCES:
patent: 4034380 (1977-07-01), Isayama
patent: 4176543 (1979-12-01), Nolte et al.
patent: 5627571 (1997-05-01), Anderson et al.
patent: 6536275 (2003-03-01), Durkee et al.
patent: 6914555 (2005-07-01), Lipscomb et al.
patent: 2003/0103131 (2003-06-01), Arakawa
patent: 2004/0168514 (2004-09-01), Tsukada et al.
patent: 2005/0247126 (2005-11-01), Eguchi et al.
patent: 2006/0038858 (2006-02-01), Ishizaki
patent: 2007/0279446 (2007-12-01), Ishizaki
patent: 2001-146030 (2001-05-01), None
patent: 2002-154216 (2002-05-01), None
patent: 2002-154222 (2002-05-01), None
patent: 2002-286525 (2002-10-01), None
patent: 2003-112431 (2003-04-01), None
patent: 2004-050824 (2004-02-01), None
patent: 2004-261970 (2004-09-01), None
patent: 2004-261971 (2004-09-01), None
patent: 2004-261982 (2004-09-01), None
patent: 2006-142515 (2006-06-01), None
patent: 2006-212828 (2006-08-01), None
Peng Charlie
Seiko Epson Corporation
Sughrue & Mion, PLLC
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