User`s manual

7–40 Digital Emulation
Set Vertical Pitch (DECVERP)
ASCII Code ESC [ Ps z
Hex Code 1B 5B Ps 7A
Dec Code 27 91 Ps 122
Purpose Selects the number of lines printed per inch on the page.
Discussion Selects the line spacing (vertical pitch) used with all fonts.
Ps selects the vertical pitch (lines per inch).
Ps
0 6 lines per inch (current default)
Vertical Pitch
7 10 inches per line (This setting is accomplished by reversing the paper.)
2 8 lines per inch
Changing vertical pitch to 8 lpi or 10 lpi alters the physical size of the form,
since form length is specified in terms of lines per page.
Vertical tab stops are not affected by changes to vertical pitch. For example, a
vertical tab at line 15 remains set even if you change vertical pitch from 6 lpi
to 10 lpi.