4.7.1 [Start Vertical Line Reduction] button
Use this button to start the vertical line reduction.
• If the density of the scanned images is uneven, differences in the density appear in the form of
perpendicular stripes, or if the image quality shows deterioration of any other kind even when the scanner
has been cleaned, the quality of the images may be improved by executing the vertical line reduction.
Operating procedure
1. Open the scanner’s door, and carefully clean the scanner’s conveyor, rollers, and scanning glass section,
and select [OK] on the message box.
• Check that the three clean sheets of white paper are not dirty, damaged, or have any other
imperfections. Dirt, damage, or other imperfections will cause the image quality to deteriorate.
• The image quality also deteriorates if any other kind of paper is used by mistake.
User Utility Reference Manual 23
4.7.1 [Start Vertical Line Reduction] button
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