Epson 24-PIN DOT MATRIX PRINTER LQ-570+ - Manual (Page 30)

By holding down a certain button while you on the
printer, you can the self test in draft or LQ mode, or
you can print out a list of the current DIP-switch settings.
These buttons are listed
LOAD/EJECT
Draft mode self test
LF/FF LQ mode self test
ALT DIP-switch setting list
The self test begins by printing on the first and last lines of
page 1. The printer then print the character samples on page 2
If you select LQ mode, the printer print the self test in every
font, in turn.
1. sure the printer is turned off and that the paper-release
lever in the position.
2. While holding down the appropriate button, turn on the
printer. The printer beeps and the platen turns for a few
seconds, signaling that the printer is in self-test mode.
1-10 Setting Up the Printer