Oki C5150n Technical Reference Manual page 32

Rough
Printing on rough (textured) media is not recommended. The print
quality can vary depending on the media used. If you experience
poor quality printing on rough media, try the Thicker or Thickest
setting instead. If this does not work, switch to a different media.
For example, try Strathmore 24 or 28 lb. paper using the Thicker
or Thickest setting.
Do not use rough print media for duplex printing.
OHP Sheet
For printing transparencies.
Use only recommended transparencies (3M CG3720,
Oki 52205701).
Click .
4. Print
NOTE
NOTE
OSX General Printing: • 32