Brother MFC-L5700DN Online User's Manual page 550

Difficulties
Cannot send a fax.
Poor sending quality.
Transmission Verification
Report says
RESULT:ERROR.
Sent faxes are blank.
Vertical black lines when
sending.
Printing received faxes
Difficulties
• Condensed print
• Horizontal streaks
• Top and bottom sentences are cut
off
• Missing lines
Vertical black lines when receiving
Received faxes appear as split or
blank pages.
Related Information
• Troubleshooting
• Set Dial Tone Detection
• Set Telephone Line Compatibility for Interference and VoIP Systems
• Clean the Scanner
• Set the Number of Rings Before the Machine Answers (Ring Delay)
• Choose the Correct Receive Mode
Suggestions
Contact your administrator to check your Secure Function Lock Settings.
Ask the other party to check that the receiving machine has paper.
Try changing your resolution to Fine or S.Fine. Make a copy to check your machine's
scanner operation. If the copy quality is poor, clean the scanner.
There is probably temporary noise or static on the line. Try sending the fax again. If
you are sending a PC-Fax message and get RESULT:ERROR on the Transmission
Verification Report, your machine may be out of memory. To free up extra memory, you
can turn off Fax Storage, print fax messages in memory or cancel a delayed fax. If the
problem continues, ask the telephone company to check your telephone line.
If you often get transmission errors due to possible interference on the telephone line
or if you are using a VoIP system, try changing the Compatibility setting to Basic(for
VoIP).
Make sure you are loading the document correctly. When using the ADF, the document
should be face up. When using the scanner glass, the document should be face down.
Black vertical lines on faxes you send are typically caused by dirt or correction fluid on
the glass strip. Clean the glass strip.
Suggestions
This is usually caused by a poor telephone connection. Make a copy; if your
copy looks good, you probably had a bad connection, with static or
interference on the telephone line. Ask the other party to send the fax again.
The corona wire for printing may be dirty.
Clean the corona wire in the drum unit.
The sender's scanner may be dirty. Ask the sender to make a copy to see if
the problem is with the sending machine. Try receiving from another fax
machine.
Left and right margins are cut off or a single page is printed on two pages.
Turn on Auto Reduction.
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