KIP 9900 - Manual (Page 36)

Chapter 2 Basic Operations 2-14
3. Pressing down the green lever, insert the Roll Spool into the new roll media.
Align the edge of roll media with the concerning size marking.
Release the green lever. The roll media is firmly fixed to the Roll Spool.
NOTE
Please keep the correct direction as the following left photo.
This is the same way (rewinding direction) for Roll 1 / 2 / 3.
Correct Wrong
Roll Spool
Lever