HP 7400c User Manual download pdf (Page 18)

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.

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HP 7400c User Manual Page 18