Brother HL-3140CW User Manual page 146

Routine Maintenance
c
Wipe the outside of the machine with a dry, lint-free cloth to remove dust.
d
Pull the paper tray completely out of the machine.
e
If paper is loaded in the paper tray, remove it.
f
Remove anything that is stuck inside the paper tray.
g
Wipe the inside and the outside of the paper tray with a dry, lint-free cloth to remove dust.
h
Re-load the paper and put the paper tray firmly back in the machine.
i
Plug the machine's power cord back into the electrical socket first, and then connect the interface cables.
j
Turn on the machine.
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