Brother MFC 6890CDW - Manual (Page 149)

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Telephone Line or Connections
Difficulty Suggestions
Dialling does not work. (No dial
tone) Make sure the machine is plugged in and not in Power Save mode.
Check the line cord connections.
Change the Tone/Pulse setting. (See the Quick Setup Guide.)
Lift the external telephone’s handset, (or the machine’s handset or cordless
handset if available), and then dial the number to send a manual fax. Wait to hear
fax receiving tones before pressing Mono Start or Color Start.
The machine does not answer
when called. Make sure the machine is in the correct receiving mode for your setup. (See
Choose the Receive Mode on page 49.) Check for a dial tone. If possible, call your
machine to hear it answer. If there is still no answer, check the telephone line cord
connection. If there is no ringing when you call your machine, ask your telephone
company to check the line.
Receiving Faxes
Difficulty Suggestions
Cannot receive a fax. Check all line cord connections.
Make sure the machine is in the correct receiving mode for your setup. (See
Receive mode settings on page 51.)
If you often have interference on the telephone line, try changing the menu setting
of Compatibility to Basic(for VoIP). (See Telephone line interference
on page 144.)
Sending Faxes
Difficulty Suggestions
Cannot send a fax. Check all line cord connections.
Make sure that the Fax key is illuminated. (See Entering Fax mode
on page 40.)
Ask the other party to check that the receiving machine has paper.
Print the Transmission Verification Report and check for an error. (See Reports
on page 81.)
Transmission Verification Report
says ‘Result:ERROR’. There is probably temporary noise or static on the line. Try sending the fax again.
If you send a PC FAX message and get ‘ Result:ERROR ’ on the Transmission
Verification Report, your machine may be out of memory. To gain extra memory,
you can turn off Memory Receive (see Turning off Memory Receive Operations
on page 57), print fax messages in memory (see Memory Receive (Monochrome
only) on page 54) or cancel a Delayed Fax or Polling Job (see Cancelling a fax in
progress on page 42 or Checking and cancelling waiting jobs on page 47). 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, try changing the menu setting of Compatibility to Basic(for VoIP). (See
Telephone line interference on page 144.)
Poor fax send quality. Try changing your resolution to Fine or S.Fine. Make a copy to check your
machine's scanner operation. If the copy quality is not good, clean the scanner.
(See Cleaning the scanner glass on page 159.)
Vertical black lines when sending. Black vertical lines on faxes you send are typically caused by dirt or correction fluid
on the glass strip. Clean the glass strip. (See Cleaning the scanner glass
on page 159.)