Communication Adapter Test - Epson Equity 286 PLUS User Manual

Before running the test, be sure that the printer is on-line, paper
is loaded, and all connections are secure, or you may see one of
the following error messages:
Error
Error - Printer not selected
Error - Printer interface I/O error
Error - Time out on printer

Communication Adapter Test

Before running this test on your serial port, you must connect a
special RS232C, AT-type loopback connector to the port. This
connector
data back on one line. You can purchase the connector from
most electronic supply stores.
Be sure the connector is configured with the following settings:
This test resets the computer to check for possible errors. Then
it checks the port by sending and receiving data and testing the
following port parameters:
Odd parity
stop bits
2
Performing System Diagnostics
C-24
- Printer out of
enables the test to send out data and receive the same
paper