Cognitive Solutions A799 Manual De Usuario

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Chapter 4: Programming Commands
94
Revision D 12/09
A799-PG00001D
Real time printer status transmission
ASCII 
GS ENQ 
Hexadecimal  1D 05 
Decimal 
29 5
Transmits one byte status of the printer in real time.
Value of byte:
Bit  Status  Hex  Decimal  Function
Off 
00 
Paper adequate. 
 
On 
01 
Paper low (if paper low sensor enabled).
Off 
00 
Paper adequate. 
 
On 
02 
Paper low (if paper low sensor enabled).
Off 
00 
Cover closed. 
 
On 
04 
Cover open.
Off 
00 
Not busy at the RS-232C interface. 
 
On 
08 
Printer is busy at the RS-232C interface.
Off 
00 
One or both cash drawers open. 
 
On 
10 
16 
Both cash drawers closed.
Off 
00 
Fixed to off.
Off 
00 
No error condition. 
 
On 
40 
64 
Error condition exists in the printer.
On 
80 
128 
Fixed to on.
Exceptions
Unlike the A793, that had a dedicated connector and resultant dedicated status reporting for each cash drawer, the A799 
has a single connector that shares data reporting from either cash drawer. When either cash drawer is open, an open status 
is reported by the printer.
Real time commands disabled
ASCII 
US z n 
Hexadecimal  1F 7A n 
Decimal 
31 122 n
Value of n
0 = enable 
 
1 = disable
This command is used to disable real time commands. They are disabled prior to sending graphic or other data to the 
printer that may contain embedded real time commands. 
The command is a batch command and processed in the order received.