HP Value Serial/USB Receipt Printer II Manual do Utilizador descarregar pdf (Página 80)

Chapter 3: Programming Commands80

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

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 Cover closed.

On 04 4 Cover 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 Fixed to o.

6 O 00 0 No error condition.

On 40 64 Error condition exists in the printer.*

7 On 80 128 Fixed to on.

* Errors include cover open, paper out, cutter error, thermistor error, high or low voltage error, where

at hermistor error is unrecoverable, and a high or low voltage error automatically recover

Exceptions

UnliketheA793,thathadadedicatedconnectorandresultantdedicatedstatusreportingforeachcashdrawer,theA798II

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.

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 154 155

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HP Value Serial/USB Receipt Printer II Manual do Utilizador Página 80