Scsi - Epson Perfection 1640SU Office Scanner Basics

3. Plug the square connector
on the back of the scanner. Then plug the flat connector
USB port on your computer or self-powered USB hub.
Your system may not work correctly if you use a USB cable other than the
one supplied by EPSON or if you connect your scanner through more than
one hub.

SCSI

If your computer does not have a SCSI port, you need to add a SCSI adapter board to
your computer. You also need a SCSI cable. See pages 75 and 76 for adapter and cable
specifications.
Set the SCSI ID Number
The scanner is preset at the factory to SCSI ID 2. If you need to change this number,
turn the scanner off. Then use the tip of a small flathead screwdriver to turn the rotary
switch on the back panel. Be sure to choose a unique number that doesn't conflict
with the ID number of other SCSI devices (including the SCSI interface board itself,
which is usually ID 7).
Don't use SCSI ID 8 or 9 for your scanner; these are for factory use only.
Don't use SCSI ID 0 or 1; these are reserved for storage devices.
For more information on setting your SCSI ID number, see your electronic Reference
Guide, as described on page 22.
on the USB cable into the USB connector
into the
Setting Up Your Scanner
7