Epson ACULASER M8000 series - Manual (Page 126)

6. Close cover B.
Note:
When the optional Duplex Unit is installed, close the Duplex Unit’s cover after closing cover B.
7. Reconnect the interface cable and power cord, and then turn on the printer.
To confirm that the option is installed correctly, print a configuration status sheet. See “Printing a
Configuration Status Sheet” on page 184.
EPSON AcuLaser M8000 Series User's Guide
Installing Options 126