Citizen CL-S400DT User Manual page 46

Chapter 3 Printer Adjustments
Sensor Adjustments
Installing the Media (p.22)
Sensor Selection Method
(Transparent  Reflective) (p.45)
Adjusting the Transparent sensor
1. The transparent sensor is selected.
2. Install only the liner media (label backing paper) with the
label media removed so that it will pass between the platen
roller and the media sensor. (Be careful that media with
black marks does not pass the media sensor.) Then close the
printer cover.
Upper sensor
Bottom sensor
3. If the PAUSE Key is pressed then released while the MENU
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 POWER 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.
46
Label
Media gap
Liner media
MENU
Hold
Sensor Cal Mode
Succeeded
PAUSE
Press/Release