1) Open the lock and retrieve the paper inside the dispenser,
2) Close the dispenser without forcing (open lock) and measure the length of paper,
3) Close the dispenser completely to cut paper (open lock)
4) Do not pull the paper before the unwind ajar,
5) The paper is cut to approximately 90% depending on the case,
6) Close the lock and store the drive.
Slightly open the dispenser is very important to release the paper (and the lock is only used for storage).