How do I determine the IP Address of the scanner?

These instructions are for the CR-120/CR-150 Network-Enabled Scanners.

Once the network-capable scanner is installed and any firmware updates provided by Canon for the network-capable scanner have been installed properly, connect the scanner via USB to the target system.
Once the drivers have been installed, go to "Devices and Printers" on your system under Control Panel.
At this point, you should see either the "CANON CR-120" or "CANON CR-150". On whichever you see, right-click and select "Scan Properties". This requires administrator privileges on the system.
A "CANON [CR-120 or CR-150] USB Properties" Window should be displayed. This may take longer than expected.
On the "Maintenance" tab, there will an IP Address listed.
Once you have this number, you should be able to adjust settings to allow connection to the device.