Brother FAX-1820C - Manual (Page 154)

12 - 17 TROUBLESHOOTING AND ROUTINE MAINTENANCE
8
Pack the printed materials in the original carton as shown below.
Do not pack the used ink cartridges in the carton.
9
Close the carton.
If you are returning your machine to Brother as part of the
Exchange Service, pack only the machine. Keep all separate
parts and printed materials to use with your “Exchange”
machine.