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