Brother HL-3450CN - Manual (Page 5)

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! Warning
HARMFUL OZONE GAS
Inhalation of an excessive amount of ozone can adversely affect your
respiratory system.
An Ozone Filter is included to reduce ozone exhaust. This filter must
be replaced periodically in accordance with the instructions found in
your User’s Guide.
! Warning
If the printer becomes hot, blows smoke, or generates obscure odor,
turn the printer off immediately and unplug the printer. Contact your
dealer.
! Warning
If metal objects, water or other liquids get inside the printer, turn the
printer off immediately and unplug the printer. Contact your dealer.
! Warning
Do not put consumable items such as the Toner Cartridges and the
Waste Toner Pack into a fire. Some consumables can be flammable
under certain conditions.
! Warning
Do not look directly at the laser beam light. It might cause damage to
your eyesight. Do not remove or break open the printer’s safety
interlocks.
! Warning
Do not run the printer with the Top Cover, Front Cover and Rear Access
Covers open and the interlocks removed.
! Warning
Turn off the printer before replacing consumable items.
! Warning
Do not place any items on the printer.