Oki C5800 - Manual (Page 37)

Printer settings in Mac> 37
P
RINT
O
PTIONS
- O
PTIONS
Media Weight
Select the thickness/type of paper in the printer.
It's important to set this correctly as it affects the temperature at
which the toner is fused to the paper. For example, if you're
printing on regular paper, don't select Labels or Transparency -
this may cause toner smearing and paper jams.
Auto Tray Switch
If the printer runs out of paper in the current tray, Auto Tray
Switch automatically changes to a tray that has the same paper
type and continues printing.
Paper Size Check
Select Paper Size check if you want the printer to warn you when
the document paper size is different from the paper in the printer.
A warning message is displayed and printing continues when you
load the correct paper and press ONLINE.
When this option is switched off, the printer uses the paper
loaded in the selected tray regardless of the document size.