Oce PlotWave 750 Operation Manual page 271

Remove an empty tape roll
[121] Removing the trailing strip of the old tape
4.
Open the front side plate of the roll holder (remove the screw and the old kernel.)
NOTE
Clean the reinforcement knives
Clean the reinforcement knives before you put in a new roll. See
on page 278.
Chapter 7 - Maintain and troubleshoot the Océ PlotWave 750 system 271