Canon MX450 series Online Manual page 175

The Scan-from-PC Settings screen of IJ Network Scanner Selector EX appears.
Select the scanner you want to use and click OK.
5. In the Settings (General Settings) dialog, click OK.
The IJ Scan Utility main screen reappears. You can scan via a network connection.
Setting for Scanning from the Operation Panel
You can make the setting for scanning from the operation panel.
Important
Set IJ Scan Utility to use your scanner or printer via a network connection beforehand.
Setting for Scanning with IJ Scan Utility
1. From the Go menu of Finder, select Applications, then double-click the Canon
Utilities folder, IJ Network Scanner Selector EX folder, then Canon IJ Network
Scanner Selector EX icon.
Canon IJ Network Scanner Selector EX appears in the menu bar, and the Scan-from-PC Settings
screen appears.
2. Click Scan-from-Operation-Panel Settings.