Brother P-touch QL-700 Service Manual page 95

 Acceptable range of black level
Black level: 0 ≤ Measured value ≤ 60
(4) If the inspection is finished (with OK), the measured value is displayed in the
"Results" column on the main screen and the next inspection is started
automatically.
<Display example in case of OK>
Fig. 16 "Sensor level check" screen
Fig. 17 Sensor level check OK
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