Handling Incoming Calls - Brother MFC-795CW User Manual

Sending Faxes (continued)
Difficulty
Transmission Verification Report
says 'RESULT:ERROR'.
(continued)
Poor fax send quality.
Vertical black lines when sending.

Handling Incoming Calls

Difficulty
The machine 'Hears' a voice as a
CNG Tone.
Sending a fax call to the machine.
Custom features on a single line.
Suggestions
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 133.)
If you connect your machine to PBX or ISDN, set the menu setting of Telephone
Line Type to your telephone type. (See Setting the Telephone Line Type
on page 57.)
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 147.)
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 147.)
Suggestions
If Fax Detect is set to On, your machine is more sensitive to sounds. It may
mistakenly interpret certain voices or music on the line as a fax machine calling
and respond with fax receiving tones. Deactivate the machine by pressing
Stop/Exit. Try avoiding this problem by turning Fax Detect to Off. (See Fax Detect
on page 45.)
If you answered on an external or extension telephone, press your Remote
Activation Code (the factory setting is l 5 1). When your machine answers, hang
up.
If you have Call Waiting, an alarm system or other custom feature on a single
telephone line with your machine, it may create a problem sending or receiving
faxes.
For example: If you subscribe to Call Waiting or some other custom service and
its signal comes through the line while your machine is sending or receiving a fax,
the signal can temporarily interrupt or disrupt the faxes. Brother's ECM (Error
Correction Mode) feature should help overcome this problem. This condition is
related to the telephone system industry and is common to all devices that send
and receive information on a single, shared line with custom features. If avoiding
a slight interruption is crucial to your business, a separate telephone line with no
custom features is recommended.
Troubleshooting and Routine Maintenance
B
129