Epson 5000 - Manual (Page 76)

You can select the character tables with DIP switches 1-1, 1-2,
1-3, and 1-4, according to “Character tables” on page 3-9.
To select a graphics character table, you must first turn DIP
switch 1-4 on.
Note:
If you send the ESC t 1 command (to select graphics) while DIP
switch 1-4 is off, the graphics character table is
always PC 437
(United States).
All character tables are included in the Appendix.
Print direction
Printing is normally bidirectional. However, turning DIP
switch 1-5 on for unidirectional printing-in which the print
head prints in one direction only—allows for precise vertical
printing alignment. This makes it ideal for printing graphics
such as lines or boxes.
If DIP switch 1-5 is on, printing is unidirectional even if you
select bidirectional with the ESC U 0 software command.
Printer mode
This feature is available only on the European version of this
printer.
When DIP switch 1-6 is off, the printer operates in ESC/P2
mode. By setting the DIP switch to on, the printer operates in
IBM emulation mode. In this mode, the printer emulates an
IBM Proprinter X 24E. All the commands available on this IBM
printer are available in this mode, except one: Define
User-Defined Characters (ESC =).
Using the Printer 3-11