We couldn't find anything on connecting the Epson LX-86 printer to an Apple
IIe. However, there is an article in the Tech Info Library that may help:
"Epson FX 80: Connecting it to an Apple II Plus or Apple IIe ".
We recommend that you contact Epson to verify that the connection is the
same. If the pinouts on the LX are different from the FX, get the pinouts
of the LX from Epson. You can find the pinouts of the Parallel card in the
"Peripheral Interface Guide" on page 2.4 with the DIP switch settings for
the Parallel card on that page.
To find the article, search the Tech Info Library under "Epson" and "FX
80".