Output Solutions 650 - Manual (Page 149)

C-5
ESC k n 1B 6B n Select typeface
ESC l n 1B 6C n Set left margin
ESC p n 1B 70 n Turn proportional mode on/off
ESC q n 1B 71 n Select character style (Ignored)
ESC t n 1B 74 n Set/reset italic font
ESC w n 1B 77 n Set/reset double height
ESC x n 1B 78 n Set printing quality
DEL 7F Delete a character