Custom Audio Electronics VKP80II-EE, User Manual

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The following fi gure shows an example of paper with the non-thermal paper printed with black marks: the outgoing
voltage is constant while passing the white paper between two notches and presents a peak at each black mark.
In this case, the optimal value for the “Notch Threshold” parameter is placed about half of the peak.
“Notch/B.Mark
Threshold”
NON-THERMAL SIDE
THERMAL SIDE
peak
The following fi gure shows an example of paper with the non-thermal paper printed with black marks and other graph-
ics (for example, a barcode): the outgoing voltage is constant while passing the white paper between two notches,
presents a peak at each black mark and presents some “noise” at each barcode.
In this case, the optimal value for the “Notch Threshold” parameter is located about halfway between the peak value
and the maximum value of the “noise”.
NON-THERMAL SIDE
THERMAL SIDE
“Notch/B.Mark
Threshold”
peak
noise
10. ALIGNMENT
70 VKP80II-EE
User Manual