Brother FAX-1840CN - Manual (Page 163)

12 - 22 TROUBLESHOOTING AND ROUTINE MAINTENANCE
10
Pack the printed materials in the original carton as shown below.
Do not pack the used ink cartridges in the carton.
11
Close the carton.
(FAX-1840C and
FAX-1940CN only)
(MFC-3240C and
MFC-3340CN only)