Epson LT-286 - Manual (Page 18)

3. Open the computer’s interface cover, as shown below.
4. One end of the printer cable has a 25-pin, D-shaped male
connector. (See your printer manual if you’re not sure which
end this is.) Connect this end to the parallel connector on the
back panel of the computer, as shown below. If the plug has
retaining screws, tighten them by hand or with a screwdriver.
Setting Up Your System 1-5