Brother ADS-2400N User Manual page 278

Troubleshooting
Difficulty Cause
The order of the output The Output Tray has been positioned
document pages so that it does not match the size of the
changes. document.
The scan quality is 
poor.


The machine pauses If you scan continuously, the internal
for about temperature of the machine may
three seconds increase, causing the machine to enter
between each page the motor save mode.
when scanning.
NOTE
Bleed-through is seen The settings are not appropriate for the
in the scan data. type of document being scanned.
Colours in the The settings are not appropriate for the
scanned data are type of document being scanned.
dark.
A page that is not a 
blank page is skipped.

Cannot scan a long Long Paper is not selected for the
document. document size.
Paper dust has accumulated on the
surface of the pick-up roller or
reverse roller.
Paper dust has accumulated on the
surface of the glass strips inside the
machine.
The resolution is too low.
The length of the pause may vary
depending on the scanning
conditions.
The document is too light.
Skip Blank Page is set to On.
Suggestions
Carefully position the Output Tray so that it
matches the size of the document.
 Clean the reverse roller and pick-up roller. To
clean the reverse roller, see Replace the
Reverse Roller on page 247 to learn how to pull
the reverse roller out from the machine, clean
the rubber side of the reverse roller with a soft,
lint-free cloth moistened with cleaner, and then
install the reverse roller in the machine. To clean
the pick-up roller, see Clean the Scanner and
Rollers on page 235.
 Clean the glass strips inside the machine. See
Clean the Scanner and Rollers on page 235.
 Increase the scanner resolution.
This is normal and you may continue to scan.
Select the Remove Bleed-through / Pattern /
Remove Background Colour check box.
Do one of the following:
 Select the Remove Bleed-through / Pattern /
Remove Background Colour check box, and
then scan from your computer.
 Increase brightness, and then scan from your
computer.
 Increase contrast, and then scan from your
computer.
 Change Scan Type to Grey or Colour, and then
scan from your computer.
Set Skip Blank Page to Off.
Alternatively, use a lower Skip Blank Page
sensitivity setting.
Select Long Paper for the document size. If you
cannot select Long Paper, when scanning from the
machine's Control Panel, set Skip Blank Page to off
and set Scan Type to an option other than Auto.
Then, you can select Long Paper for the document
size.
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