
Re-install the scanner driver after upgrading to Windows 8.1. If the scanner driver is installed in Windows 8, and if Windows 8 is upgraded to Windows 8.1 while keeping the scanner driver installed, scanning from the product (by using the SCAN button) may not be available. Re-install the printer driver after upgrading to Windows 8.1 and Enable bidirectional support is selected. If the printer driver is installed in Windows 8, and if Windows 8 is upgraded to Windows 8.1 while keeping the printer driver installed, Enable bidirectional support in the printer properties may be deselected, disabling detection of the ink level, etc.

In Windows Update, update the OS and Internet Explorer to the latest version. With Internet Explorer 11, a web site containing Japanese may not be printed properly.
