IBM Personal Computer XT Manual To Operations page 170

5
Perform the printer self -test:
1. Be sure that nothing prevents the paper from
moving.
2. Be sure the top cover is closed properly.
3. Press and hold down the Form Feed button
while you set the printer's Power switch to
On.
4. When the test starts, release the Form Feed
button.
6
This test will run until you set the printer's
Power switch is set to Off.
8010-2 Test April 1984