Epson EPL-8000 User Manual page 134

Replacing Consumable Parts
Now, gently shake the imaging cartridge a few times as shown
4.
below to further distribute the toner.
Carefully slide the plastic runners on either side of the imaging
5.
cartridge into the green grooves inside the printer. Push the
cartridge in gently as far as it will go.
5-12 Maintenance and Transportation