HP (Hewlett-Packard) 7400c Scanner User Manual


 
12 Installing and troubleshooting
Performing basic troubleshooting
If the scanner or software is not working, perform these steps first.
Check that the power cable is securely connected between the scanner and a
live electrical outlet or surge protector that is turned on.
Make sure you have properly and securely connected the scanner to the
computer using either the Universal Serial Bus (USB) or the SCSI Input/Output
(I/O) interface. See "Checking connections" on page 13.
Use the Apple System Profiler to make sure the scanner is connected to the
computer correctly. See "Checking connections" on page 13.
If the scanner is making a loud grinding noise, make sure the scanner is
unlocked. Move the lock down to the unlocked position.
Disconnect the power cable from the scanner and turn off the computer. After
30 seconds, reconnect the power cable and then turn on the computer, in that
order.
If you receive installation file errors or the scanning software will not run, make
sure all programs are closed, and then uninstall and reinstall the scanning
software.
Make sure your computer meets the minimum system requirements. See the
box in which the scanner shipped. If you do not have enough hard disk space,
remove unnecessary files or install the software on a different disk drive.