Brother HL-4200CN - Manual (Page 154)

7 - 28 ROUTINE MAINTENANCE AND CONSUMABLE REPLACEMENT
Storing the Printer
Follow the procedure below when you do not need to use the printer for a long period.
1
On the printer's right side, press the side of the
power switch marked O to turn the printer off.
2
Disconnect the power cord, interface cable, and any
other cables.
WARNING
Never touch a power cord with wet hands. This
constitutes an electric shock hazard.
Caution
When unplugging the printer, grasp the plug instead
of the power cord. Forcibly pulling the power cord can
damage it and cause fire or electric shocks.
3
Remove the paper from the paper tray, and store it
in a dry, dust-free place.
If the paper proves difficult to remove, pull the tray
completely out of the printer and try removing the
paper again.