Epson LX-1170, LX-300+ User Guide

Running the Self Test

Setting Up the Printer
8. For LX-1170 users, reinstall the paper tension unit.
9. Reinstall and close the printer cover.
When printing becomes faint, you need to replace the ribbon 
cartridge. To remove the old ribbon cartridge, first make sure the 
print head is in position at 10 cm (4 inches) from the left side. Then 
remove the cartridge by lifting the both ends and taking it out of 
the printer.
Running the Self Test
Use the built-in self test function to check that the printer is 
working properly. You can run the test with either continuous 
paper or single sheets. The procedure below describes the test 
using single sheets, which is the easier way.
Follow these steps to run the self test:
1. Make sure the printer is turned off. Also make sure that the 
paper-release lever is pushed back to the single-sheet position 
and the paper guide is in the upright position, as shown