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Troubleshooting and routine maintenance
11 - 2
11
Disconnected The other person or other person’s fax
machine stopped the call.
Try to send or receive again.
Dust on Drum The drum unit needs to be cleaned. See Cleaning the drum unit on page 11-17.
DR Mode in Use The MFC is set to Distinctive Ring
mode. You can not change the Receive
Mode from Manual to another mode.
Set Distinctive Ring to Off.
See Turning off the Distinctive Ring on page A-2.
Fail to Warm up The fuser unit is too cold. (For MFC-7420)
When you turn off the MFC’s power switch its memory
will be cleared. (To check if faxes are in the MFC’s
memory, see Checking if the MFC has faxes in its
memory on page 11-5.) If there are faxes, you need to
save them before following the suggestions below. (To
save the faxes, see Transferring faxes to your PC on
page 11-5 or Forwarding faxes to another fax machine
on page 11-5.)
Then, turn off the MFC’s power switch. Check the
MFC’s environment. If it is in a location that is too hot
or too cold, try to cool or warm the room by turning on
the air conditioner or heater. Or, move the MFC to
another location. Then, turn on the MFC’s power
switch.
(For MFC-7820N)
Turn off the MFC’s power switch, and check the MFC’s
environment. If it is in a location that is too hot or too
cold, try to cool or warm the room by turning on the air
conditioner or heater. Or, change the location. Then,
turn on the MFC’s power switch. (The MFC can be turn
off for up to 4 days without losing faxes stored in the
memory.)
Unit is too Hot The fuser unit is too hot.
Machine too Hot The inside of the machine is too hot. Make sure that you can hear the fan in the MFC
spinning and the exhaust outlet isn’t blocked by
something.
If the fan is spinning, remove any obstacles that
surround the exhaust outlet, and then leave the MFC
turned on but do not use it for several minutes.
If the fan is not spinning, you need to save the faxes
before you follow the suggestions below.
(For MFC-7420)
When you turn off the MFC's power switch its memory
will be cleared. To check whether the MFC has faxes
in its memory see Checking if the MFC has faxes in its
memory on page 11-5. If there are faxes you need to
save them before following the suggestions below.
(See Transferring faxes to your PC on page 11-5 or
Forwarding faxes to another fax machine on page
11-5.)
Turn off the MFC's power switch and then turn it on
again. If the error message continues, leave the MFC
for several minutes and try it again.
(For MFC-7820N)
Turn off the MFC's power switch and then turn it on
again. If the error message continues leave the MFC
for several minutes and then try it again. (The MFC can
be turned off for up to 4 days without losing faxes
stored in the memory.)
ERROR MESSAGES
ERROR MESSAGE CAUSE ACTION