Canon S300 User Manual page 154

Ensure that the printer port setting corresponds to the printer interface
connection.
1
Click the Start button, then select Settings, Printers.
2
Select the Canon S300 icon.
3
Open the File menu and select Properties.
4
On the Details tab (or Ports tab), select USBPRNnn (Canon S300) or
USBnnn (Canon S300) ("n" represents a number) in the Print to the
following port.
There may be a problem in the printer driver. Uninstall the printer driver and
reinstall it.
Also refer to the procedure "Notes on Handling the USB Interface (for Windows Users)"
in the Quick Start Guide .
Uninstalling Printer Drivers
An Error Message is Displayed on the Screen
Troubleshooting
154