Brother HL-8050N - Manual (Page 156)

ROUTINE MAINTENANCE AND CONSUMABLE ITEMS REPLACEMENT 6 - 16
Cleaning the Interior
1
Press the power switch to the O position to turn the power
off.
Remove any remaining pieces of paper.
2
Use a soft, damp cloth to clean the interior.
If some stains prove difficult to remove, use a cloth lightly
moistened with neutral detergent.
3
Wipe any remaining water with a soft, dry cloth.