[Cleaning the upper edge control roller]
1. Press the key to display the home screen.
2. Press the NOZZLE switch to raise the nozzle (1).
3. Use a soft cloth to wipe off any glue, dirt or other foreign
particles which are adhering to the upper edge control
roller (2).
NOTE:
Do not use hard objects such as tweezers to clean the upper
edge control roller (2), as such objects may cause damage.
If dirt cannot be removed, wipe the roller with a cloth which is
lightly soaked in ethanol to clean it.