Epson ES-1200C - Manual (Page 25)

Power-on sequence
Follow these instructions for the power-on sequence each time
you turn your computer and SCSI devices on.
If you have an internal hard disk, turn on the scanner and any
other SCSI devices you plan to use. Wait a few seconds; then
turn on the computer.
If you have an external hard disk, turn on the scanner, external
hard disk (first on the daisy chain), and any other SCSI devices
you plan to use. Wait a few seconds; then turn on the computer.
SCSI devices in the middle of the daisy chain may be left off if
you don’t plan to use them.
Installing Scanner Software
Now that you have connected the scanner to your computer,
the next thing to do is install your scanner software. Follow the
instructions in the user’s manual for the software. Then read
Chapter 2, “Scanner Basics,” before your first scan
1-12 Setting Up the Scanner