Citizen CL-E700 Series User Manual page 58

Chapter 3 Printer Adjustments
Sensor Adjustments
3. If the Pause Key is pressed then released while the Feed key
is continually pressed, the sensor is automatically adjusted.
Sensor Cal Mode
Executing
4. When automatic adjustment stops normally, "Succeeded" is
displayed by the LCD. If it stops abnormally (adjustment is
impossible), the LED lights up red and "Failed" is displayed on the
LCD.
5. If the Stop key is pressed, the printer completes sensor
adjustment and the printer restarts.
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Hold Press/Release
Sensor Cal Mode
Succeeded