Problem Possible
cause
Action
Image has unevenly spaced
vertical stripes or streaks.
The electronics gear is out
of sync.
Exercise the Scan Start
procedure.
Image has evenly spaced
vertical stripes or streaks.
50/60Hz interference from
fluorescent ceiling lights.
Change position, dim down or shut off
some lamps, change ceiling lights to
electronic ballasts.
Image has horizontal stripes
or streaks.
Improper white balance.
Exercise the White Balance
procedure.
Scanning two A4 (letter)
pages perfectly centered in
A3 (double letter) format
cuts of one side of the scan.
The scanner’s optical
middle (in the horizontal
direction) is lost or
misaligned.
Exercise the Scan Start
procedure.
A small portion of the lower
side of the target is missing
in the image.
The scanner’s optical
center (in the vertical
direction) is lost or
misaligned.
Go to the Scan Center function and
lower the value.
The image shows an extra
small portion on the lower
side of the target
The scanner’s optical
center (in the vertical
direction) is lost or
misaligned.
Go to the Scan Center function and
raise the value.
The image is out of focus on
a flat target with significant
contrast, book cradles in
their lowest position and flat
mode scanning.
The reference focal point
is lost or misaligned.
Exercise the Autofocus
procedure.
Page 72
Setup and Assembly Manual
