Instruction manual

Chapter 6: Programming Information A794 Owner’s Guide
December 1999116
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
0Off
On
00
01
0
1
Paper adequate.
Paper low (if paper low sensor
enabled).
1Off
On
00
02
0
2
Paper adequate.
Paper low (if paper low sensor
enabled).
2Off
On
00
04
0
4
Cover closed.
Cover open.
3Off
On
00
08
0
8
Not busy at the RS-232C interface.
Printer is busy at the RS-232C interface.
4Off
On
00
10
0
16
One or both cash drawers open.
Both cash drawers closed.
5 Off 00 0 Fixed to Off.
6Off
On
00
40
0
64
No error condition.
Error condition exists in the printer.
7 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 A794 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.