Epson ActionLaser Plus User Manual page 146

Maintenance Messages
6. Locate the main charger wire, which extends along the length of
the green drum inside a slot directly over the drum. Gently clean
the main charger wire with the cotton swab by running the swab
along the length of the wire. You need to insert the cotton swab
a fraction of an inch into the slot to reach the wire.
Note: The charger wire is thin and silver, so it is difficult to
see.
Maintenance and Transportation
6-16