Compuprint 9058 Programmer Manual - Manual (Page 43)

EPSON/IBM Mode
A78408098-003 41
ESC x
Selects Letter Quality or Draft printing. (EPSON)
ASCII Code ESC x n
Hexadecimal Value 1B 78 n
Decimal Value 27 120 n
This command selects either LQ or Draft printing according to the
following values:
n Selection
0 Draft printing
1 Letter Quality printing
If you select proportional spacing with the ESC p command during Draft
printing, the printer prints an LQ font instead. When you cancel
proportional spacing with the ESC p command, the printer returns to
Draft printing.
ESC y
Selects yellow ribbon band. (IBM)
ASCII Code ESC y
Hexadecimal Value 1B 79
Decimal Value 27 121
SI
Sets condensed printing. (IBM, EPSON)
ASCII Code SI
Hexadecimal Value OF
Decimal Value 15
This command selects the condensed mode in which character width
is reduced as follows:
10 CPI → 17.14 CPI
12 CPI → 20 CPI
Proportional → ½ width
DC2 code cancels the condensed printing.