Questions And Answers - Canon IRIScan Express 4 Quick User Manual

6.2 Questions and Answers

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Why does my scanned image
always come out too dark?
1. Please adjust the screen settings to
SRGB.
2. Please adjust the brightness
settings on the screen from
application software.
Why are there strange lines on the
scanned document?
Please check the following:
1. Are there scratches on the original
or is the original clean？
2. Remove any stains or dust from the
original before scanning.
3. Clean the rollers and glass with the
included cleaning cloth. (Refer to the
section "Clean the scanner")
When I choose 600 dpi as optical
resolution, why are the "auto
crop" and "deskew" functions
disabled?
Since performing auto crop and
deskew consumes great deal of system
memory, it is recommended to select
an optical resolution below 600 dpi to
prevent errors.
Should the scanner feel warm to
the touch?
It is normal for the scanner to emit a
small amount of heat after prolonged
use. However, if there are strange
odors coming from the scanner or the
scanner feels a little bit hot to the
touch, turn the scanner off
immediately.