Input Buffer; Auto Line Feed; Interface Type/Parity; Interface Type/ Parity - Epson DFX-5000+ User Manual

input buffer

The printer's input buffer provides additional memory to free
up the computer more quickly when you print large amounts
of text or graphics. The input buffer is enabled when DIP
switch 2-2 is off. To disable the buffer, turn DIP switch 2-2 on.

Auto line feed

When DIP switch 2-3 is on, the printer adds a line feed (LF)
command to every carriage return (CR) code sent by the
application program software. When the switch is off, line
feeds occur only when the software sends line feed commands
to the printer. Since most computers and application programs
automatically add line feeds to carriage returns, you should
use this feature only if your text is printing all on one line.
Note:
If you select auto line feed but your text still prints on one line, you
need to disable the AUTO FEED XT signal. See your Epson dealer for
assistance.

Interface type/parity

You may need to change DIP switches 2-4, 2-5, and 2-6 so that
your printer and computer can communicate properly. These
three DIP switches control the interface type and parity. (You
may also need to select a different serial bit rate. See the
following section on serial bit rate.)
3-16 Using the Printer