Epson Expression 1640XL Manual page 18

For Windows 2000, 98, or 95 users:
The first time you turn on the computer after turning on the scanner, one of the
following dialog boxes or similar may appear.
If you see one of these, follow the installation instructions in Chapter 3, "Installing
the Software," in your online Setup Guide, then see "Power-off sequence"
following.
Power-off sequence
Keep the following in mind every time you turn off your computer and SCSI devices.
When you are finished using your system, turn off your computer first, then the
scanner and other SCSI devices in reverse order of the power-on sequence.
While using your computer, do not turn off any SCSI device which has a terminator
that is active (on).
Do not turn the scanner off and back on while using your computer, otherwise the
scanner may not work properly.
When the connection is complete, you need to install the scanner software. See Chapter
3, "Installing the Software," in your online Setup Guide for instructions.
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Windows 98
Windows 95
Connecting the Scanner to Your Computer
Windows 2000