IBM Proprinter Manual To Operations page 196

11-inch forms length D-1
11-inch forms, switch for 6-4
12 CPI 4-29, 4-35
12-inch form length 3-13
12-inch forms length D-1
12-inch forms, switch for 6-4
17.1 CPI 4-7
1920 bit-image graphics 4-24
480 bit-image graphics 4-16
6 lines per inch 4-25, D-1
6 lines per inch (LPI) 4-9
7/72 inch line spacing 4-25
8 lines per inch 4-24
960 bit-image graphics 4-18,
4-23
X-15