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18 Installing and troubleshooting
SCSI troubleshooting
If the scanner test fails, follow these steps.
● Repeat basic troubleshooting. See "Performing basic troubleshooting" on
page 12.
● Make sure the SCSI chain is less than 20 feet (6 meters) long, including any
cabling to SCSI devices inside the computer.
● If other SCSI devices are connected to the computer, make sure the scanner is
the last physical device in the SCSI chain.
● Disconnect all other SCSI devices and connect the scanner directly to the
computer to see if the problem is with the scanner or with another SCSI device
or cable.
● Make sure that any SCSI devices connected between the computer and the
scanner have their termination turned off.
● Check for an address conflict. See “Changing the SCSI address” below.