Brother MFC-820CW - Manual (Page 125)

Troubleshooting and Routine Maintenance
109
Handling Incoming Calls
Difficulty Suggestions
The machine ‘Hears’ a voice as a
CNG Tone. If Easy Receive 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 Easy Receive to off. (See Easy
Receive on page 36.)
Sending a Fax Call to the machine. If you answered on an external or extension phone, press your Fax Receive Code
(the factory setting is l51). When your machine answers, hang up.
Custom features on a single line. If you have Call Waiting, Call Waiting/Caller ID, Voice Mail, an alarm system or
other custom feature on a single phone 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
it 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 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 phone line with no custom features is
recommended.
Copying Difficulties
Difficulty Suggestions
Cannot make a copy.
Make sure that the Copy key is illuminated. (See Entering Copy mode
on page 68.)
Vertical streaks appear in copies. If you see vertical streaks on copies, clean the scanner. (See Cleaning the scanner
on page 116.)
Poor copy results when using the
ADF. Try using the scanner glass. (See Using the scanner glass on page 11.)
Scanning Difficulties
Difficulty Suggestions
TWAIN/WIA errors appear while
scanning. Make sure the Brother TWAIN/WIA driver is chosen as the primary source. In
PaperPort
®
, click File, Scan and choose the Brother TWAIN/WIA driver.
Poor scanning results when using
the ADF. Try using the scanner glass. (See Using the scanner glass on page 11.)
Software Difficulties
Difficulty Suggestions
Cannot install software or print. Run the Repair MFL-Pro Suite program on the CD-ROM. This program will repair
and reinstall the software.
‘Device Busy’ Make sure the machine is not showing an error message on the LCD.