Canon DR-5010C - Manual (Page 85)

Troubleshooting 83
Cause The scanner’s SCSI ID is identical to the SCSI ID of
another device.
Remedy Check the SCSI IDs of all SCSI devices connected to the system
and set a unique SCSI ID for the scanner. (See p. 22.)
Cause The terminator is not set correctly.
Remedy Shut down both the PC and the scanner, and then turn the scanner
ON first, and then the PC. (See p. 25.)
Cause There is a problem with another SCSI device that is
connected in the daisy chain.
Remedy Do not use the daisy chain connection configuration. (See p. 22.)
Cause The PC was turned ON before the scanner.
Remedy Shut down both the PC and the scanner, and then turn the scanner
ON first, and then the PC. (See p. 25.)
Cause The scanner is not ON.
Remedy Refer to “The Scanner Does Not Turn ON,” on p. 81 and check
to see if the scanner is ON. If the scanner is not ON, shut down
the PC, then turn the scanner ON first, and then the PC.
(See p. 25.)
Cause The SCSI card is not compatible with the scanner.
Remedy Use a recommended SCSI card. (See “SCSI Cards,” on p. 19)