Brother MFC-4300 Owner's Manual

      T R O U B L E S H O O T I N G   A N D   R O U T I N E   M A I N T E N A N C E

If you think there is a problem with your MFC, make a copy first.  If the copy 
looks good, the problem is probably not your MFC. Check the table below and 
follow the troubleshooting tips.

Condensed print and 
horizontal streaks; top 
and bottom of sentences 
are cut off.

If your copy looks good, you probably had a bad 
connection, with static or interference on the phone 
line. If the copy looks bad, clean the scanner area. 
If there is still a problem, call Brother Customer 
Service at:
1-800-284-4329 (in USA) or 1-800-853-6660 (in 
Canada) or 1-514-685-6464 (in Montreal).

Vertical streaks; black 
lines appear on the faxes 
you receive.

Sometimes you may see vertical streaks/black lines 
on the faxes you receive. Either your MFC’s 
primary corona wire for printing may be dirty, or 
the sending party’s fax scanner may be dirty. Clean 
your primary corona wire (see pages 15-25), or ask 
the sender to make a copy to see if the problem is 
with the sending machine.
Try receiving from another fax machine.
If the problem continues, call Brother Customer 
Service at:
1-800-284-4329 (in USA) or 1-800-853-6660 (in 
Canada) or 1-514-685-6464 (in Montreal).

The MFC “hears”  voice 
as CNG tone.

If your MFC is set to Easy Receive ON, and it 
answers voice calls by trying to receive a fax, try 
turning Easy Receive to OFF.

Horizontal streaks; lines 
are missing.

You may get a fax with horizontal streaks or with 
missing lines. Usually this is caused by a poor 
telephone connection. Ask the other party to send 
the fax again.

Received faxes appear 
as split or blank pages.

If the received data is divided and printed on two 
pages or if you get an additional blank page, your 
Paper Size setting may not be correct for the paper 
you are using (see pages 5-5). If you are using the 
fixed reduction feature, check to see if the 
reduction ratio is suitable for the real paper. (See 
pages 5-4 to 5-5)