6  Installation of Options
100
CL4NX/CL6NX Service Manual
6.2
Installation of the Optional Wireless LAN Kit
6.2.1
Installation of the Optional Wireless LAN onto the Interface 
Combo Board
Required tools:
• Phillips screwdriver (JIS #1 and #2, or equivalent)
• Wrench (size: #10)
1 Make sure that the printer is in power off 
mode, and disconnect the power cord 
from the AC outlet. Then, disconnect all 
the interface cables, if any.
2 On the rear of the printer, remove two 
screws 
. and pull out the interface 
combo board 
3.
3 Remove the antenna hole cover $ 
from the interface combo board 
3.
2