Epson AcuLaser CX16 User Manual page 123

12. Remove the cover from the toner roller.
Note:
Do not touch or scratch the toner roller.
13. Align the shaft on each end of the toner cartridge with its holders, and then insert the cartridge.
AcuLaser CX16 Series Printer / Copier / Scanner User's Guide
Replacing Consumables 123