Epson 5000/5500 User Manual page 65

DIP Switches
Auto line feed
When auto line feed is on (DIP switch 2-4 on), the printer
accompanies each carriage-return code (CR) received with a line-
feed code (LF).
If your printer is double spacing, turn DIP switch 2-4 off. If each
line overprints the next, turn DIP switch 2-4 on.
3-12
Using the Printer