Recognizing Data From The Printer; Bar Codes; Select Printing Position Of Hri Characters - CognitiveTPG A799 Programming Manual

98 Chapter 4: Programming Commands

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
ECS 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 n 10 04 n
GS ENQ 1D 05
XON
XOFF
Unsolicited status mode (USM)
USM Byte 1
USM Byte 2-4

Bar codes

These commands format and print bar codes and are described in order of their hexadecimal codes.
These commands describe operation for 80mm paper. If the printer supports 82.5mm paper, the dot spacing is the same but
there are 640 printable dots rather than the 576 printable dots on 80mm paper.

Select printing position of HRI characters

ASCII GS H n
Hexadecimal
1D 48 n
Decimal
29 72 n
Value of n: Printing position
0 = Not printed
1 = Above the bar code
2 = Below the bar code
3 = Both above and below the bar code
Default:
0 (Not printed)
Prints HRI (human readable interface) characters above or below the bar code.
Response recognized by:
0 0 0 0 0 0 x
0 x x 0 0 x x
0 x x 0 x x x
0 x x 0 x x x
Response recognized by:
0 x x 1 x x 1
0 x x 1 x x 1
1 x x x x x x
0 0 0 1 0 0 0
0 0 0 1 0 0 1
Response recognized by:
0 x x 1 x x 0
0 x x 0 x x x
A799-PG00001D
x Binary
x Binary
x Binary
x Binary
0 Binary
0 Binary
x Binary
1 Binary
1 Binary
0 Binary
x Binary
Revision D 12/09