Recognizing Data From The Printer - NCR 7158 Owner's Manual

Recognizing Data from the Printer

An application sending various Real Time and non-Real Time
commands to which the printer responds can determine which
command a response belongs to by the table below.
Responses to Transmit Peripheral Device Status (1B 75) and Transmit
Paper Sensor Status (1B 76) are non-Real Time responses and will
arrive in the order in which they were solicited.
Batch Mode Response
ASCII HEX
ESC u 0 1B 75 0
ESC v 1B 76
GS I n 1D 49 n
GS r n 1D 72 n
Real-Time Response
ASCII HEX
GS EOT n 1D 04 n
DLE EOT 10 04 n
n
GS ENQ 1D 05
XON
XOFF
Auto Status Back (ASB)
ASB Byte 1
ASB Bytes 2-4
Response Recognized By:
0 0 0 0
0 0 0 0
0 x x 0
0 x x 0
Response Recognized By:
0 x x 1
0 x x 1
1 x x x
0 0 0 1
0 0 0 1
Response Recognized By:
0 x x 1
0 x x 0
Chapter 7: Programming Guide 7-99
0 0 x x Binary
0 x x x Binary
x x x x Binary
x x x x Binary
x x 1 0 Binary
x x 1 0 Binary
x x x x Binary
0 0 0 1 Binary
0 0 1 1 Binary
x x 0 0 Binary
x x x x Binary