IBM PCjr

1. Set the system unit's Power switch to Off.
2. Reseat the parallel printer attachment by
disconnecting it from the system unit, and then
reconnecting it.
3. Set the system unit's Power switch to On.
4. Bring the advanced-test menu to your display
screen.
ARE THE roS UNDER THE GRAPHICS PRINTER
SYMBOL BLINKING?
The problem has been corrected. Repeat
advanced POST and the advanced tests to
ensure that the IBM PCyr is operating
correctly.
Parallel Printer Attachment 3-900-11