Epson ES-300C User Manual page 14

You can install one of two different interface cards to connect
your Epson scanner to your computer:
Epson b&directional parallel adapter @3808011), or
3 Adaptec AHA-1510 AT-to-SCSI host adapter.
Note
Epson TWAIN supports the built-in bidirectional parallel
interface on the IBM PS/2. If you have a PS/2, you don't need
to install an additional interface card. Turn to Chapter 2 for
instructions on installing Epson TWAIN. You must install
either the bidirectional parallel interface or the Adaptec SCSI
adapter for all other computers.
Procedures for installing the bidirectional parallel or the
Adaptec SCSI adapter cards differ slightly. You may want to
refer to your computer's documentation for more complete
instructions on installing option cards.
This chapter contains the following sections. The checkmarks
indicate which sections apply to installing a bidirectional
parallel adapter, an Adaptec SCSI adapter, or both.
Section
Removing the cover
Checking the jumper settings
Installing the card
Connecting the cable
Bi-directional
SCSI
Checking your SCSI device ID
1-2 Installing the Interface Card
Adaptec
Parallel
SCSI