Brother MFC-3100C Owner's Manual page 189

Caution
Damage to your print head resulting from packing without the shipping cover
will void your warranty.
7
Wrap the MFC in the plastic bag and place it in the original carton with the
original packing material.
8
Pack the printed materials in the original carton as shown below. Do not pack
the used ink cartridges in the carton.
If you are returning your machine to Brother as part of the Exchange Service,
Note
pack only the MFC.
Keep all separate parts and printed materials to use with your "Exchange"
machine.
T R O U B L E S H O O T I N G A N D R O U T I N E M A I N T E N A N C E
20 - 14