Troubleshooting Image Quality Problems
D158/D159/D160/D161/D170 5-2 SM
Contact scanning:
Other ADFs/ARDFs
Non-contact scanning:
ARDF DF2020 (D684)
In contact scanning, the whole of the
original comes into contact with the DF
exposure glass [A] so that non-adhesive
contaminants can be removed.
By means of the Mylar sheet [B], originals
are kept slightly above the DF exposure
from adhering to the glass.
The ARDF DF2020 (D684) can be converted from non-contact scanning to contact scanning for
users who wish to reduce vertical streaks caused by non-adhesive contaminants.
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