Epson SQ-2550, User Manual

Page: 186 / 315

Interface Boards
WARNING:
Always disconnect the printer cable from
the printer’s built-in parallel or serial interface before
8. Before you use the interface board, be sure to use SelecType
to set the INTERFACE option to Parallel. (For details, see
the SelecType setting section in Chapter 3.) This is necessary
even if the interface is serial, because the board uses the
parallel connections. However, serial conversion is
performed.
The #8143 new serial interface board
If you are using an optional interface, it may be necessary for
you to alter the communications protocol of the printer or the
computer so that they can communicate properly. In most
cases, you should use the information in your optional interface
manual or your computer’s manual to match the computer with
the interface.
If you are using the #8143 optional board with the SQ printer,
make sure that you read through the section below on baud
rate selection. You may also want to refer to the sections on
handshaking timing and error handling for interface
information specific to the SQ printer.
For all other data transfer conventions, such as word structure
or communications protocol, use the information in the manual
supplied with your #8143 optional interface.
Using Printer Options 5-39