Brother HLL9410CDN Enterprise Color Laser Printer - Manual (Page 289)

To avoid print quality problems, DO NOT touch any surface of the drum rollers except the drum unit gear.
13. Wipe the surface of the drum gently with a dry cotton swab until the mark on the surface comes off.
NOTE
DO NOT clean the surface of the photosensitive drum with a sharp object or any liquids.
14. Turn the drum unit over by holding the green labeled handles.
15. Reinsert the toner cartridge into the new drum unit. Make sure that you match the toner cartridge color to the
same color label on the drum unit. Repeat this for all toner cartridges.
K
C
M
Y
• K: Black
• C: Cyan
• M: Magenta
• Y: Yellow
Make sure you put the toner cartridge in correctly or it may separate from the drum unit.
16. Gently slide the drum unit into the machine until it stops.
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