Canon LBP7210Cdn Manual page 556

Log on as a user with administrative rights.
IMPORTANT
If you are not sure about your administrative rights
Contact your system administrator.
Run Command Prompt.
Windows XP, Server 2003, Vista, and Server 2008
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[Command Prompt].
Enter "arp -s <IP address> <MAC address>", then press the [ENTER] key on your
keyboard.
<IP address>: Enter the IP address to assign to the printer.
Specify the address with four numbers (from 0 to 255) separated with a
period (.).
<MAC address>: Enter the MAC address of the printer.
Separate the number every two digits with a hyphen (-).
Input Example: "arp -s 192.168.0.215 00-00-85-05-70-31"
NOTE
MAC address location
The MAC address is listed at (A) on the printer.
Enter "ping <IP address> -l 479", then press the [ENTER] key on your keyboard.
<IP address>: Enter the same IP address as the one entered in Step 9.
Enter a lowercase "L" for "-l".
Input Example: "ping 192.168.0.215 -l 479"
>$FFHVVRULHV@