IBM 5155 Manual To Operations page 174

12
Ensure that the DIP switches are all set to Off.
13
Ensure the Forms Thickness Control lever is
properly adjusted.
14
Ensure the Feed Mode lever is in the correct
position.
Did you find any problem while doing the above
steps?
NO - Have your printer serviced.
YES - Correct the problem and restart the
printer self-test.
15
Did you receive any of the following error
messages during diagnostic testing?
199
432
901
1401
2901
2902
YES - Go to the next step.
NO - If you are still having a problem go to
Step 18.
8020-6 Test January 1984