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6-9
Chapter 6 Practical Examples
Problem Text or images from the back side of your
document appear in the scanned image.
Cause Brightness may be set too low.
Solution Increase the Brightness setting.
Cause The paper is too thin.
Solution Photocopy the document, and scan the copy.
Problem Double-sided scanning is not possible.
Cause Scanning Side is set to [Simplex].
Solution Set Scanning Side to [Duplex].
If the Scanning Side is set to [Skip Blank
Page], images of blank pages are not saved.
Problem A black margin appears around the
scanned document.
Cause A document smaller than the preset paper
size has been scanned. Or, the loaded
document has shifted out of position.
Solution Set the page size setting to [Auto Detection].
Problem The scanned image is skewed.
Cause The document has been fed at an angle.
(skew)
Solution Slide the document guides to match the width
of your document.
Problem Lines, smudges, or dirt appear on the
scanned image.
Cause The scanning glass or rollers inside the
scanner are dirty.
Solution Clean the scanning glass and roller inside the
feeder. (See “Daily Cleaning” on p. 5-4.)
If lines still appear on the image even after you
clean the scanning glass and rollers, the
scanning glass inside the scanner may be
scratched. Contact your local authorized
Canon dealer or service representative.
Problem The scanned image is abnormal for
certain documents.
Cause A detection function such as border
removal is enabled when scanning a
document that includes text or photos
extending to the edge of the page (the
scanner cannot accurately process the
edges of documents).
Solution When a page has text or photos extending to its
edges, turn the detection functions off or scan
that page individually.
Problem The scanned image is abnormal in some
applications.
Cause A function not supported by the
application was used.
Solution Some applications do not support functions
such as auto-detection of page size, so
scanning with such applications will produce
abnormal scanned images.
If abnormal image appearance seems to be
application-dependent, try scanning with auto-
detection disabled.