Canon MF6180dw Manual page 555

When <Manual Obtain> is selected
This setting can be specified only when <Select Protocol> and <Auto IP> in <Auto Obtain> are set to <Off>.
(1) Enter the IP address.
"Entering Text"
After it has been entered, press [OK].
(2) Enter the subnet mask.
"Entering Text"
After it has been entered, press [OK].
(3) Enter the gateway address.
"Entering Text"
After it has been entered, press [OK].
8
Press [ ] (Menu) to close the menu screen.
9
Restart the machine.
Turn OFF the machine and wait for at least 10 seconds before turning it back ON.