User`s guide

10. Pull the lever to the right to lock it in place.
Note:
The front lever should be securely returned to its original position; otherwise, the front cover of
the printer cannot be closed.
If it is difficult to operate the lever, push it in.
11. Make sure that the toner cartridge is securely installed, and then peel off the protective film.
Epson AcuLaser CX37 Series Printer/Copier/Scanner User’s Guide
Replacing Consumables and Maintenance Parts 172