IBM Personal Computer AT Manual To Operations page 364

6
Are the characters in your test pattern correct and
is each character only one color?
ARE THE CHARACTERS ON THE PRINTED
TEST PATTERN CORRECT. AND EACH
CHARACTER A SINGLE COLOR (YIN)
1
YES
Press Y and then press Enter
(....-J)
and
go to Step 9.
NO Press N and then press Enter
(....-J)
and
continue on the next page.
2900-6 Test