Epson LQ-2170 User Manual page 31

The printer prints the self test in the currently selected font.
1. Make sure the printer is turned off and the paper path guide is
open.
2. Move the paper release lever to the single-sheet position.
3. For the letter quality test, hold down the Load/Eject button
while you turn on the printer. For draft printing, hold down
the LF/FF button while you turn on the printer.
Setting Up the Printer
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