User Manual

Table Of Contents
123
5
5
Replacing supplies 5
You must replace supplies when the machine indicates that the life of the supply is over. You can replace the
following supplies yourself.
Using non-Brother supplies is not recommended and may affect the print quality, hardware performance, and
machine reliability.
NOTE
The drum unit and toner cartridge are two separate parts.
Routine Maintenance 5
Toner cartridge Drum unit
See Replacing the toner cartridges on page 127.
Model Name: TN-900BK, TN-900C, TN-900M, TN-900Y
See Replacing the drum unit on page 133.
Model Name: DR-321CL
Belt unit Waste toner box
See Replacing the belt unit on page 140.
Model Name: BU-320CL
See Replacing the waste toner box on page 146.
Model Name: WT-320CL