Canon IMAGE FORMULA DR-9050C - Manual (Page 58)

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■ Double Feed
Error Code: D002
Problem: A double feed was detected by the document
length.
Solution: Remove the double fed document page(s),
return them to the Document Feed Tray, and scan again.
(See p. 33.)
Error Code: D004
Problem: A double feed was detected ultrasonically.
Solution: Remove the double fed document page(s),
return them to the Document Feed Tray, and scan again.
(See p. 33.)
■ Double Feed (Rapid Recovery System)
Problem: Double feeding of document pages has been
detected while scanning with the Rapid Recovery System
enabled.
Solution: Remove the double fed document page(s),
return them to the Document Feed Tray, and scan again.
(See p. 33.)
■ Staple Detected
Error Code: J001
Problem: A stapled document has been detected.
Solution: Remove the staple(s), and rescan the document.
■ Tray Error
Error Code: E021
Problem: An error has occurred with the Document Feed
Tray.
Solution: Turn the power OFF, and restart the scanner.
■ Count Mismatch
Error Code: U001
Problem: The specified count has not yet been reached.
Solution: Check the document count, and scan again.
Error Code: U002
Problem: Scanning finished without reaching the
specified count.
Solution: Check the document count, and scan again.