Handling Incoming Calls - Brother MFC-790CW User Manual

Sending Faxes (continued)
Difficulty
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.
Copying Difficulties
Difficulty
Cannot make a copy.
Poor copy results when using the
ADF.
Vertical black lines or streaks
appear in copies.
Fit to Page does not work properly. Make sure the document is not skewed on the scanner glass.
Scanning Difficulties
Difficulty
TWAIN/WIA errors appear when
starting to scan.
Poor scanning results when using
the ADF.
148
Suggestions
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 on page 164.)
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 on page 164.)
Suggestions
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 49.)
If you answered on an extension telephone, press your Fax Receive Code (the
factory setting is l 5 1). If you answer on an external telephone (connected to the
EXT jack), press Start to receive the fax. When your machine answers, hang up.
If you have Call Waiting, Call Waiting/Caller ID, Voice Mail, 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 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.
Suggestions
Make sure that the Copy
on page 94.)
Try using the scanner glass. (See Using the scanner glass on page 21.)
Vertical black lines or streaks on copies are typically caused by dirt or correction
fluid on the scanner. Clean the glass strip and scanner glass and the white bar and
white plastic above them. (See Cleaning the scanner on page 164.)
Suggestions
Make sure the Brother TWAIN/WIA driver is chosen as the primary source. In
®
PaperPort 11SE with OCR, click File, Scan and choose the Brother TWAIN/WIA
driver.
Try using the scanner glass. (See Using the scanner glass on page 21.)
key is illuminated. (See Entering Copy mode