Troubleshooting and routine maintenance 13 - 12 – Brother MFC-640CW User Manual

Page 155

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TROUBLESHOOTING AND ROUTINE MAINTENANCE 13 - 12

Handling Incoming Calls

The machine ‘Hears’ Voice as
CNG Tone.

If your machine is set to Easy Receive ON, it is more sensitive to
sounds. Your machine may mistakenly interpret certain voices or music
on the line as a calling fax machine and respond with fax receiving
tones. Deactivate the fax by pressing Stop/Exit. Try avoiding this
problem by turning Easy Receive to Off. (See Easy Receive on page
4-6.)

Transferring a Fax Call to the
machine.

If you answered at the machine, press Black Start and hang up
immediately. If you answered on an extension phone, press your Fax
Receive Code (default setting is (

51). When your machine answers,

hang up.

Custom features on a single
line.

If you have Call Waiting, Call Waiting/Caller ID, Ring Master, Voice Mail,
an alarm system or any other custom feature on a single phone line with
your machine, it may create a problem sending or receiving faxes.
For example: If you are sending or receiving a fax message while a
custom feature signal comes through on the line, 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 data
on a single, shared line with custom features. If avoiding a slight
interruption is crucial to your business, we recommend a separate
phone line with no custom features.

Copying Difficulties

Cannot make a copy

Make sure that the Copy

key is illuminated. (See Enter Copy mode

on page 9-1.)

Vertical streaks appear in
copies

Sometimes you may see vertical streaks on copies. Clean the scanner.
(See Cleaning the scanner on page 13-23.)

Poor copy results when using
the ADF

Try using the scanner glass. (See Using the scanner glass on page 1-8.)

Scanning Difficulties

TWAIN/WIA errors appear
while scanning.

Make sure the Brother TWAIN/WIA driver is selected as the primary
source. In PaperPort

®

, click Scan in the File menu and select the

Brother TWAIN/WIA driver.

Poor scanning results when
using the ADF

Try using the scanner glass. (See Using the scanner glass on page 1-8.)

Software Difficulties

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.

DIFFICULTY

SUGGESTIONS

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