Brother HL-3450CN Service Manual page 11

May cause serious injuries or fatal accidents. Voltage is now applied from the power
supply of printer. There is a danger of electrical shock if you touch the active area
inside the printer.
Be sure to turn the power supply switch OFF and pull the plug out from the power
outlet before starting maintenance work on the printer.
Inhalation of an excessive amount of ozone gas may adversely affect the respiratory
organs.
An Ozone Filter is fitted to this printer to reduce the exhausted ozone. This filter
must be replaced with a new filter periodically in accordance with the manual
supplied with the printer.
The Fusing Unit reaches a temperature of approx.160°C and adjacent parts are also
very hot.
When you need to change the cleaning pad or remove jammed paper, wait about 20
minutes after opening the paper exit unit to allow the unit to cool down.
Be aware of the potential danger of various rollers and take care not to get your
fingers or hand caught in the machine, this can cause serious injuries. Note that the
exit roller that ejects the printed paper rotates during printing.
Be careful not to get your hair, fingers, hands, sleeve or necktie caught in the
machine while operating the machine.
WARNING
HAZARDOUS VOLTAGE
WARNING
HARMFUL OZONE GAS
WARNING
HOT SURFACE
CAUTION
ROTATING PARTS
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HL-3450CN SERVICE MANUAL