Interface Boards; Compatible Interfaces - Epson LQ-850 User Manual

Interface Boards

There are a number of optional interfaces that can be used to
supplement the capabilities of your printer's built-in serial and
parallel interfaces.
If you are unsure whether you need an optional interface, or would
like to know more about interfaces, check with your Epson dealer.

Compatible interfaces

The following is a list of Epson interfaces that are compatible
with your LQ printer.
interface number
# 8 1 4 3
# 8 1 4 8
# 8 1 6 5
All Epson interfaces have the EPSON name printed on them. If
the board has an identification code printed on it, it will be a four
digit number beginning with 8, and should correspond to one of the
numbers listed in the table above.
7-24
name
Optional serial interface
Intelligent serial interface
Intelligent IEEE-488 interface