Brother MFC-8420 User Manual page 368

20
Do not touch a document during printing.
21
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.
22
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.
23
Unplug this product from the mains power and telephone line
sockets, and refer servicing to qualified Service Personnel
under the following conditions:
If 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.
24
This unit will only work in conjunction with a tone signalling
(DTMF) telephone, but some telephones are not compatible.
Since noise or speech from the telephone can upset dialling
from this unit, errors may result if the devices are used together
in other than quiet conditions.
25
Where it is necessary to dial prefix digits, such as a Caller
Display override code ("0196" or "0197"), this unit will have to be
used in conjunction with an associated tone signalling (DTMF)
telephone.
IMPORTANT INFORMATION 21 - 7