Operation of the take-up unit stopped.
This message appears and the take-up unit stops when it is not possible to detect the position of the dancer roller for a continuous length of time during media feeding or pull back.
When the message Operation of the take-up unit stopped. appears, tap OK to clear the message.
Tap 
followed by Operation of the take-up unit stopped. and follow the instructions on the screen to recover the take-up unit.