Brother MFC-8420 User Manual page 364

12
Never push objects of any kind into this product through cabinet
slots, since they may touch dangerous voltage points or short
out parts resulting in a risk of fire or electric shock. Never spill
liquid of any kind on the product.
13
Do not attempt to service this product yourself, because
opening or removing covers may expose you to dangerous
voltage points and/or other risks. Refer all servicing to service
personnel.
14
Unplug this product from the mains power and telephone line
sockets, and refer servicing to qualified Service Personnel
under the following conditions:
When the power cord is damaged or frayed.
If liquid has been spilled into the product.
If the product has been exposed to rain or water.
If the product does not operate normally when the operating
instructions are followed. Adjust only those controls that are
covered by the operating instructions. Improper adjustment
of other controls may result in damage and will often require
extensive work by a qualified technician to restore the
product to normal operation.
If the product has been dropped or the cabinet has been
damaged.
If the product exhibits a distinct change in performance,
indicating a need for service.
IMPORTANT INFORMATION 21 - 3