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6-6
Chapter 6 Practical Examples
■ The Scanner Is Not Recognized (Connecting
via USB)
If the scanner’s USB connection is not recognized, first
confirm the following:
✔ Are the scanner and PC connected correctly using the
proper cable?
✔ Is the scanner’s power switch turned ON?
If this does not solve the problem, consider the following
possible causes:
Cause The scanner does not support your USB
interface.
Solution This product is not guaranteed to operate with
all types of USB interfaces. Contact your local
authorized Canon dealer or service
representative for more information.
Cause The scanner does not support the USB
cable.
Solution Use the USB cable provided with the scanner.
Cause The USB hub is not compatible with the
scanner.
Solution Remove the USB hub.
Cause The SCSI terminator is not set to ON.
Solution When using a USB connection, proper
scanning may not be possible if the SCSI
terminator is not set to ON. Make sure to set
the SCSI terminator to ON. (See “Setting the
SCSI ID and terminator” on p. 2-7.)
■ The Scanner Is Not Recognized (Connecting
via SCSI)
If the scanner’s SCSI connection is not recognized, first
confirm the following:
✔ Are the scanner and PC connected correctly using the
proper cable?
✔ Is the scanner’s power switch turned ON?
✔ Is the SCSI card in the PC operating properly?
✔ Was the PC turned ON before the scanner?
IMPORTANT
When using the SCSI connection, if the scanner is turned ON
after the PC, it may not be properly recognized by the PC.
If this does not solve the problem, consider the following
possible causes:
Cause The SCSI card is not compatible with the
scanner.
Solution Use a recommended SCSI card. (See p. 2-3.)
Cause The scanner’s SCSI ID is identical to the
SCSI ID of another device.
Solution Check the SCSI IDs of all SCSI devices
connected to the system and set a unique SCSI
ID for the scanner.
Cause The terminator is not set correctly.
Solution When another SCSI device is connected
between the scanner and the PC, that device’s
terminator must be disabled (set to OFF).
Cause There is a problem with another SCSI
device that is connected in the daisy
chain.
Solution Do not use the daisy chain connection
configuration.