Oki C9300dn User Manual page 79

PCL
Access the printer settings page via the [Start] menu.
1.
Highlight the printer name and click on [File] then [Properties].
2.
Click on the [Device Options] tab.
3.
Increase the number of [Installed Paper Trays] to the number of
4.
paper trays now installed.
Click on [OK].
5.
PRINTER DRIVERS > 79