Epson 10020 User Manual

Use this option to test the functions of an additional serial

communications (RS-232C) port. To perform the test you must

insert a special loop-back connector into the alternate serial

port so that the computer can check the individual pins of the
port.

This test is identical to the check for the primary serial port. For

more details, see the description of the Serial port (RS-232C)
check above.

Use this option to check:

The operation of your printer in IBM-compatibility mode

The compatibility of your printer with the extended

character set used by the computer

The ability of your printer to produce bit-image graphics

and print images of the graphics screen.

When you select option 14 from the DEVICE LIST, you see

this prompt:

dot-matrix printer on-line (Y/N)?

Check that your printer is connected to the computer, and that

it is turned on, loaded with paper, and on-line. Press Y and

then Enter to continue, or press N and Enter to return to the

menu.

D-30

Performing System Diagnostics