Canon DR-9080C Service Manual page 324

Chapter 6 Troubleshooting
Error code P30
Cause Endorser ED600 paper jam
Remedy Clear the paper jammed from inside the optical endorser ED600,
according to the instructions in the Endorser ED600 Instructions.
Error code U01
Cause Number of document sheets to be scanned exceeds set
number of sheets in the verify scan.
Remedy Two or more sheets may have been fed when the number of sheets
is counted. Press the [Stop] key to reset the counter to "0." Check
the number of sheets to see if all document sheets have been
counted, and scan the document again.
Error code U02
Cause Number of scanned document sheets is less than the set
number of sheets in the verify scan.
Remedy Two or more sheets may have been fed when the document is
scanned. Press the [Stop] key to reset the counter to "0." Check the
number of scanned images with the number of document sheets to
see if all document sheets have been correctly scanned, and scan
the document again.
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