IBM 5150 - Page 129

Press
g and ~ Enter. This will cause the System
Unit
to check the Parallel Printer Adapter. An error message
similar to
the one in the diagram below may appear.
----------------------------------------~
0:01 :39
ERROR - PARALLEL PRINTER ADAPTER
901
PRESS ENTER TO CONTINUE
DID YOU RECEIVE AN ERROR MESSAGE?
NO Remove the Parallel Printer Adapter Wrap Plug. You
may want to run additional tests on the printer
attached to this adapter. See PIC 1400, "Printer."
YES Replace the Parallel Printer Adapter. See Section 3,
"Removal/Replacement. "
900-4