Chapter 6: Commands
7156 Owner’s Guide
September 1997
98
While MICR data is still outstanding, an application should use the real time GS ENQ. A
response to GS ENQ can still arrive “inside” ASCII MICR data, but it can be recognized
and extracted. And although ASCII MICR data cannot be distinguished from responses to
ESC u and ESC v, those are all non-real time responses and will arrive in the order in
which they were solicited.
Note also that although the original intent of the response to ESC v was to provide motor
jam information in bit 3 and out-of-range temperature and voltage information in bit 7,
these bits will always be 0 when transmitted. This is due to the fact that ESC v is not
processed until the error condition is cleared.
Batch Mode Response
Response Recognized By:
ESC u 0
0
0
0
0
0
0
x
x
Binary
ESC v
0
x
x
0
0
x
x
x
Binary
ESC w 1 (MICR read)* 0
0
0
0
0
1
0
1
x
0
x
x
1
x
x
1
x
x
0
x
x
1
x
x
Binary (Carriage
Return)
Binary (n = 20-2F)
Binary (n = 30-7F)
GS I n
0
x
x
0
x
x
x
x
Binary
GS r n
0
x
x
0
x
x
x
x
Binary
Real Time Response
Response Recognized By:
GS EOT n
0
x
x
1
x
x
1
0
Binary
DLE EOT n
0
x
x
1
x
x
1
0
Binary
GS ENQ
1
x
x
x
x
x
x
x
Binary
XON
0
0
0
1
0
0
0
1
Binary
XOFF
0
0
0
1
0
0
1
1
Binary
Auto Status Back
(ASB)
Response Recognized By:
ASB Byte 1
0
x
x
1
x
x
0
0
Binary
ASB Bytes 2-4
0
x
x
0
x
x
x
x
Binary
*Turn off Automatic Status Back (ASB) mode during a MICR read because the
ASB bytes will be confused with MICR data.
Bar Code Commands
These commands format and print bar codes on the receipt station.
Summary of Contents for 7156
Page 6: ...Contents 7156 Owner s Guide September 1997 iv...
Page 38: ...Chapter 3 Solving Problems 7156 Owner s Guide September 1997 32...
Page 118: ...Chapter 6 Commands 7156 Owner s Guide September 1997 112...
Page 122: ...Appendix A Specifications 7156 Owner s Guide September 1997 116...
Page 129: ...7156 Owner s Guide Appendix B Print Characteristics September 1997 123...
Page 130: ...Appendix B Print Characteristics 7156 Owner s Guide September 1997 124...
