Brother HL-L8260CDN Online User's Manual page 341

9. Turn the drum unit over by holding the green handles. Make sure that the drum unit gears (1) are on the left
side.
10. Use the numbered markers next to the drum roller to find the mark. For example, a cyan dot in column 2 on
the check sheet would mean that there is a mark in the "2" region of the cyan drum.
• BK: Black
• C: Cyan
• M: Magenta
• Y: Yellow
11. Hold the drum unit frame with both hands, place your left thumb on the drum unit gear, and roll the drum
toward you by hand while looking at the surface of the suspected area.
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