Epson ActionLaser Plus User Manual page 140

Maintenance Messages
15. Press down simultaneously on the drum unit's two green
handles until the drum unit clicks into place.
16. Unfasten the tape holding the clear plastic film in place on the
replacement toner cartridge.
17. Pressing down on the toner cartridge to hold it firmly in place,
pull the film up and out toward the back of the printer. Pull
firmly until the other end of the film comes out of the cartridge.
6-10 Maintenance and Transportation