CHAPTER 1
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COPYRIGHT
2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
V. CUSTOMER'S DAILY MAINTENANCE
Dirt on a document glass or a document cover may cause an unclear image or lines on an
image. Clean the document glass and the document cover using the following procedures.
1) Disconnect the USB cable from the scanner.
2) Wipe the dirt or dust off the document cover with a soft clean cloth dampened with water
and well wrung, then thoroughly wipe water off with a dry cloth.
3) Wipe the document glass with a dry cloth caring not to leave wiper marks.