A Routine Maintenance; Replacing The Consumable Items - Brother  HL-4140CN User Manual

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Routine maintenance

Replacing the consumable items

The following messages appear on the LCD in the Ready mode. These messages provide
advanced warnings to replace the consumable items before they reach the end of their life. To
avoid any inconvenience, you may want to buy spare consumable items before the machine stops
printing.
Toner cartridge
See Replacing a Toner cartridge on page 35.
Model Name: TN-320BK, TN-325BK, TN-320C,
TN-325C, TN-320M, TN-325M, TN-320Y, TN-325Y
Belt unit
See Replacing the belt unit on page 48.
Model Name: BU-300CL
Drum unit
See Replacing the drum unit on page 41.
Model Name: DR-320CL
Waste toner box
See Replacing the waste toner box on page 53.
Model Name: WT-300CL
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