Epson 3260 - Manual (Page 30)

5. Insert the paper cassette into the printer as far as it will go.
The edge of the paper stack extends beyond the front of the
printer.
Running the test
1. Make sure the printer is turned off.
2. While
holding down the
FF (FORM FEED
) button, turn
on the printer. It loads the paper automatically and begins
the self test.
The printer prints characters in the current font and character
table. If the optional color upgrade kit is installed, the self
test is in color. Here is part of a typical self test:
1-16 Setting Up the Printer