Hi eporter,
Please make sure that the settings in the MP Navigator are correct:
1. Click on the Windows Start button and the All Apps
2. Click on Canon Utilities, MP Navigator EX and then MP Navigator EX to open that program.
3. Click Preferences.
4. Next to product name, please make sure that PIXMA MX882 Series (Network: xxxxx) is selected.
5. Click OK.
Next, please check that the Canon IJ Network Scan Utility is running:
1. Click on the Windows Start button and then All Apps.
2. Click on All Programs, Canon IJ Network Utilities, Canon IJ Network Scan Utility, Canon IJ Network Scan Utility to start that program.
3. In the notification area of the taskbar (in the lower right hand corner), right click the Canon IJ Network Scan Utility icon and left click Settings.... .
4. Place a checkmark next to Canon PIXMA MX882 ser_XXXXXXXXXXXX.
5. Click OK.
You should be able to scan from the operators panel of your PIXMA MX882.
If you continue to have difficulties, please contact our support group using the following link:
http://www.usa.canon.com/cusa/consumer/standard_display/contact_us_consumer