Oki LD630D User Manual page 25

5-7 Black Mark Sensor Auto Calibration Mode
Use this mode when paper is not detected correctly with Smart Media Detection function.
Printer feeds paper and calibrates Black Mark Sensor automatically.
The printer will enter error mode if paper detection fails after feeding up to 1 meter of paper.
Error mode can be released by opening and closing the cover.
Use Manual Calibration Mode if paper detection fails in this mode.
Smart Media Detection will be disabled if paper detection is successful in this mode.
5-7-1 Procedure to run calibration
• Depress the Feed button at 5th LED sequence as shown in section 5-2-2 (Status LED
is Orange and Error LED is blinking Orange four times) to start Black Mark Sensor
Automatic Calibration Mode.
Rev. 1.0
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LD630D/LD640D