Method of detecting residual quantity of ink

Details Method of detecting residual quantity of ink Method of detecting residual quantity of ink

2011-01-25

2011-01-25

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

07874635

ABSTRACT:
There are provided a method of detecting an ink residual quantity and a printing device which do not make an erroneous determination as to detection on presence/absence of ink without influence of ink mist generated in the middle of using a printing device on calibration of an optical sensor. Therefore, by performing allotment processing based upon ink tank memory element information, calibration of an optical sensor using a reflection portion equipped in the ink tank, in a state where it is determined that the ink is left in the ink tank.

REFERENCES:
patent: 5975665 (1999-11-01), Torigoe et al.
patent: 2003/0210289 (2003-11-01), Yoshiyama et al.
patent: 2005/0231547 (2005-10-01), Hatasa et al.
patent: 2007/0052741 (2007-03-01), Yamamoto
patent: 2000-043287 (2000-02-01), None

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