User`s manual

7–32 Digital Emulation
Graphic Size Selection (GSS)
ASCII Code ESC [ Pn SP C
Hex Code 1B 5B Pn 20 43
Dec Code 27 91 Pn 32 67
Purpose Sets the height and width of all characters in the selected font that start
after the control sequence.
Discussion Pn is a decimal value that species the height of the font in units
determined by the Select Size Unit (SSU) sequence. The width of the
font is implicitly defined by the height. For example, the width of a
10–point font is 10 pitch. The initial value for Pn is Pn = 100.
If the desired font height cannot be matched exactly, the next smallest
available font is selected. The GSS sequence remains in effect until the
printer receives another GSS sequence or a Graphic Size Modification
(GSM) sequence.