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Manual
Page 87
E Tests and Troubleshooting
E.1 Troubleshooting Matrix
Fields with a light blue background need the
Poweruser
access level. All other fields are
available to all users.
Problem
Possible cause
Action
The touch panel does not
show the standby message.
No power
Check main outlet, power cord, and
position of power-on switch on the
device.
The scanner does not start
when pressing the standby
button.
Software malfunction.
Switch power off for at least 10
seconds at the main power switch.
Retry after standby button is
illuminated.
Image is darker than
expected.
The target used for white
balance is much brighter
than the scanning target.
Go to the Adjustments function and
modify the Brightness
Correction setting.
Image is brighter than
expected.
The document is much
brighter than the target
used for white balance.
Go to the Adjustments function and
modify the Brightness
Correction setting.
Image has vertical stripes or
streaks.
Improper white balance.
Exercise
the White Balance
procedure.
Image shows a color shift
towards red (tint)
The target used for white
balance is more blue than
the scanning target.
Go to the RGB adjustments and lower
the gain on red.
Image shows a color shift
towards blue (tint)
The target used for white
balance is more red than
the scanning target.
Go to the RGB adjustments and lower
the gain on blue.
Image shows a color shift
towards red (tint)
The scanner receives
significant amounts of
infrared light (sun or spot
lights) not visible to the
human eye.
Change position, close blinds, dim or
shut off any bright spotlights.
