Epson ColorWorks C6500Au Technical Reference Manual page 176

4
Raise the release lever.
5
Open the paper guide unit.
6
Attach adhesive side of a label to the roller, and peel it off slowly. Repeat this action
until paper dust or adhesive is completely removed from side to side of the roller.
If some labels have stuck on the roller, carefully remove them as they can cause a paper jam.
Chapter3 Handling
176