Epson Action Laser - Manual (Page 133)

Maintenance Messages
7. Now change the drum replacement cartridge. Locate the used
drum replacement cartridge, which is in the right rear comer of
the printer frame (with the printer cover open). Then pull out
the used cartridge from the slot and discard it.
8. Insert the new drum replacement cartridge, which was packed
with your drum unit, with the indicator light facing the front of
the printer. Press down on the cartridge until it is inserted all the
way.
Maintenance and Transportation 6-17