Epson EPL-6100 Reference Manual page 136

However, you do not have to use the Remote Control Panel utility
to change basic printer settings. You can change basic settings that
affect the final printed output in most application programs, and
any settings you make from your software override those made
from the Remote Control Panel utility. However, if you cannot
change printer settings from your application program or if you
are running DOS, the Remote Control Panel utility will give you
access to such settings.
Operating environment
Operating system: MS-DOS Version 3.3x or later. The mouse can
Memory:
Interface:
Installing the Remote Control Panel utility
To install the utility, follow these steps:
1. Insert the printer software CD-ROM containing the utility
into your computer's CD-ROM drive.
2. Type the following at the DOS prompt and press the Enter
key.
D:\RCP\SETUP
34 Using the Remote Control Panel Utility
be used, provided that the mouse driver is
installed. (Microsoft Mouse v.7.04 or better,
or Logitech v.6.43 or better.)
360 KB minimum, although the actual
requirement varies depending on the version
of the operating system.
Parallel. The utility works in both
bidirectional and unidirectional parallel
interface modes. In unidirectional mode, the
computer can transmit settings to the printer
but cannot retrieve settings data from the
printer.