Compuprint MDP40B Programmer Manual - Manual (Page 65)

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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.
SI
Sets condensed printing. (IBM Proprinter XL24/XL24E, 2391+, 4722, 9068,
EPSON ESC/P2)
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. This command resets the horizontal motion
index (HMI) set with the ESC c command.
SO
Sets double width printing (one line).
(IBM Proprinter XL24/XL24E, 2391+, 4722, 9068, EPSON ESC/P2)
ASCII Code SO
Hexadecimal Value 0E
Decimal Value
14