Brother MFC-9120CN User Manual page 209

p
Put the four carton trays on the top.
Note
If you are returning your machine to
Brother as part of the Exchange Service,
pack only the machine. Keep all separate
parts, including the drum unit and toner
cartridge assemblies, and printed
materials to use with your 'Exchange'
machine.
q
Close the carton and tape it shut.
Troubleshooting and routine maintenance
C
193