Brother HL-4040CN User Manual page 163

b
Hold the green handle of the drum unit. Lift the drum unit up and then pull it out until it stops.
Note
If you cannot pull the drum unit out, make sure that the front cover is fully open as shown below.
c
Release the gray lock lever (1) that is on the left side of the printer. Pull the drum unit completely out
using the green handles on the drum unit.
1
Troubleshooting
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