IBM Personal Computer AT Manual To Operations page 361

3
Select the width of the paper you are using.
SElECT PAPER WIDTH
1 - 8 1/2 INCH PAPER WIDTH
2 -
14 1/2 INCH PAPER WIDTH
ENTER THE OPTION DESIRED
?
Press 1 and then press
Enter (.....-J)
for paper 8
1/2 inches wide.
Press 2 and then press
Enter (.....-J)
for paper 14
1/2 inches wide.
Test 2900-3