Brother MFC-6650MC Owner's Manual page 234

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C H A P T E R N I N E T E E N
Slide the new toner cartridge into the opening on the right side of the
6
drum unit. To ensure that the toner cartridge and the drum unit fit
together correctly, make sure that the toner cartridge guide arrow is
exactly aligned with the guide arrow on the drum unit.
Drum Unit
7 Gently turn the lever on the toner cartridge backward until it stops.
Reinstall the drum unit into the MFC and close the top cover.
8
Drum Unit
Toner Cartridge
Top Cover
Lever