Adjustment procedures
Screw in stop pad until the paper strip can be easily pulled out.
Then unscrew stop pad until the paper strip cannot be pulled out any more.
Screw in stop pad until the paper strip can be pulled out "with slight resistance".
Version 4:
Lever out expanding rivets (1).
Remove stop pad (2).
Adjusting version 4:
Set stop pad to the correct height by turning to the left or right.