Lexmark M3150 Paper Manual page 4

• Flex and straighten paper before loading it.
•
Do not use paper that has been cut or trimmed by hand.
• Do not mix paper sizes, weights, or types in the same tray.
•
Make sure the paper size and type are set correctly on the computer or printer control panel.
• Store paper per manufacturer recommendations.
Media Guide
Page 4 of 4