HP scanjet 7400c User Manual

SCSI troubleshooting

If the scanner test fails, follow these steps.

●

Repeat basic troubleshooting. See 

.

●

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 “

” below.