Canon Color imageCLASS MF8450c Basic Operation Manual page 285

Adjusting Sharpness
7
Use [◀], [▶] or
the indicator towards <Low> or <High>,
then press [OK].
– <Low>: To scan originals containing printed
images or other halftones, the setting should
be towards <Low>. This setting lessens the
moiré effect (a shimmering, wavy pattern).
– <High>: To scan text or lines clearly, the
setting should be towards <High>. This
setting is particularly suited for scanning
blueprints and faint pencil drawn images.
8
Press
Main Menu screen.
5-84
(Scroll Wheel) to slide
(Main Menu) to return to the