Vertical distortion
If the lid sensor of the scanner fails, the scanner cannot detect when the lid is open. Hence, you can start a
scan, and at some point nd that the pressure sliders do not move the original through the scanner paper
path. You may see images like the following when this happens (original on the left, scanned image on the
right). Please note the black arrow indicating the scanning direction in these examples.
Actions
▲
Open the scanner lid and close it by pushing it down until you hear a click. Then repeat your scan and
visually check that the original advances correctly through the scanner path. If not, rst try to calibrate
the OPT wheel (see Support Menus, Diagnostic Plots & Calibrations on page 181 to see how to Calibrate
the OPT wheel) and try again. If it still fails; try to replace the OPT Wheel F9A30-60038 on page 453 and
recalibrate it.
Object replication (ghosting)
This error very rarely appears in CIS scanners. However, you can occasionally nd image defects like the
following: original on the left, scanned image on the right.
Image © www.convincingblack.com, reproduced with permission.
ENWW Scan and copy quality troubleshooting 165
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