Oki PAGE 6E Help Manual page 12

Symptom
Pages curl excessively.
Problem
Printing on wrong side of paper.
Moisture in paper, Improper storage.
High humidity.
Solution
Turn paper over in tray. (Note arrow on paper
package). Install paper print side down in tray.
Avoid storing paper in areas of excessive
temperature and humidity. Store paper in
protective wrapping.
Recommended operating humidity:
20-80%