Epson LX-80, Operating Manual

Page: 106 / 193

Control Codes Used by the LX-SO
T h e following t a ble show s which control code s ar e u se d by the
LX - 80. If t h e s pecial graphic s character set is not used , cod es in the
range 128 t o 1 55 mirror the function of their low-order count erparts,
i.e . co d es i n the range 0 to 27 . In some cases it is nece s sar y o r more
conve n ie n t t o use the high-order codes instead of the l ow - order
o n es. Fo r exa mple , if your system will not send an ASCII c ode 9 for
a horizontal ta b , tr y sending ASCII code 137 inste a d . Both sets are
listed here :
Lo w High High
Dec De e Hex Symbol Function
0 128 80 NUL Terminates horizontal and vertic-
al tab setting <ESC> se qu ence
7 135 87 BEL Sounds beeper
8 136 88 BS Backspace
9
13 7
89 HT
Horizontal tab
10
138 8A LF Line feed
11 139 8B VT Vertical tab
12 140 8 C FF Form feed
13 141 8D CR Carriage return
14 142 8E
SO
Shift out ; turns expand e d mode
ON
15 1 4 3
8F SI Shift in; turns condens e d mode
ON
18 146 92 DC2 Device control 2; turns cond ensed
mode OFF
20 148 93 DC4 Device control 4; turns ex p anded
mode set by ASCII 14 OF F
24 152 97 CAN Cancels all text in print bu ffer
25 153 98 EM Used with <ESC> cod e t o en-
able / disable cut - sheet fe e d e r
2 7 155 9B
ESC <ESC> code
Note:
Th e high-order control codes cannot be used if the special
g r a phic s characters are activated .