User's Manual

Chapter 5: Programming commands 95
A776-PG00001 C 12/09 A776 (B780) Programming Guide
Real-time printer status transmission
ASCII GS ENQ
Hexadecimal 1D 05
Decimal 29 5
Transmits one byte status of the printer in real time.
0 O 00 0 Paper adequate.
On 01 1 Paper low
(if paper low sensor enabled).
1 O 00 0 Paper adequate.
On 02 2 Paper low
(if paper low sensor enabled).
2 O 00 0 Both receipt and cassette
door closed.
On 04 4 Receipt or cassette
door open.
3 O 00 0 Not busy at the
RS-232C interface.
On 08 8 Printer is busy at the
RS-232C interface.
4 O 00 0 One or both cash
drawers open.
On 10 16 Both cash drawers closed.
5 O 00 0 Paper present at both slip
sensors.
On 20 32 Paper not present at one or
both sensors
6 O 00 0 No error condition.
On 40 64 Error condition exists
in the printer.
7 On 80 128 Fixed to on.
Exceptions
Unlike the A756, that had a dedicated connector and resultant dedicated status reporting for each cash drawer, the
A776 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 disable
ASCII US z n
Hexadecimal 1F 7A n
Decimal 31 122 n
Value of n: 0 = disable
1 = enable
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.
This command is a batch command and processed in the order received.