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3. If you are using more than one parallel port or more than
one serial port, the computer must know which port is the
primary port and which is the secondary port. See Chapter
2 for instructions on how to set the parallel and serial ports
using the Setup program.
4.
If your printer is properly set up but is still not functioning,
test it from the MS-DOS level. When the screen displays
the MS-DOS command prompt (such as
C>
or
A>),
hold
down Shift and press PrtSc. This should print the contents
of the screen on your printer.
If it does not, you may need to change the internal setting
of the computer’s parallel port for a parallel printer (or serial
port for a serial printer). To do this, use the MS-DOS
MODE command or the MENU program. See your printer
manual and the MS-DOS Reference Manual for more
details.
5.
Many application programs (such as word processors) must
be set up properly before they can use a printer. Check your
program manual to see what customizing may be required.
6.
Try running the Parallel Port (Printer Interface) check if
you have a parallel printer, or the Serial Port (RS-232C)
check if you have a serial printer. Appendix E describes
these diagnostics checks. If the diagnostics test indicates an
error, contact the place where you bought the printer.
D-26 Troubleshooting