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Serial interfaces are necessary if your computer is not equipped with
a parallel interface or if you need an interface that conforms to the
Current Loop standard instead of the RS-232C. In addition, all
available serial interface boards provide user-selectable baud rates
and data word structures. These interfaces also offer some combi-
nation of the following features: X-on/X-off data communication
protocol, loopback self-test modes, and data buffers that increase the
printer’s buffering capacity to either
32
Kbytes or
128
Kbytes.
If you are still unsure whether you need an optional interface, or would
like to know more about interfaces, contact your Epson dealer.
Compatible interfaces
The Epson interfaces that are compatible with the
FX-850
and
FX-1050
are listed below.
Interface number Name
#8143
RS232C/current loop interface
#8148
Intelligent serial interface
#8149
32Kbyte buffer serial interface
#8165
Intelligent IEEE-488 interface
#8172
32 Kbyte buffer parallel interface
Removing the upper case
Before installing an optional interface board, you must remove the upper
case. This is easy to do; the only tool you need is a Phillips screwdriver.
Follow the instructions below:
1.
Turn off both the printer and the computer, unplug the printer from
the electrical outlet, and disconnect the parallel cable from the printer
and computer.
Using Printer Options
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