Canon LBP7660Cdn Manual page 514

NOTE
When the [Use SMB Server] check box is cleared
The printer is not detected on the SMB network.
7
Specify the settings for SMB.
[Server Name]
Enter the computer name to which the printer belongs. Up to 15 characters can be entered.
Enter a name that does not overlap with the names used on the other computers or the
printers on the network.
You cannot enter a space between characters.
Enter the name of the work group to which the printer belongs. Up to 15 characters can be
entered.