HP Value Serial/USB Receipt Printer II Manual de usuario descargar pdf (Pagina 75)

Chapter 3: Programming Commands 75

Flash memory user sector status (n = 4 or n = 52)

Bit O/On Hex Decimal Status for transmit status

0 – – – Undened. Fixed to o.

1 – – – Undened. Fixed to o.

2 O 00 0 User data storage write successful.

On 04 4 User data storage write failed, specied area not erased.

3 O 00 0 Flash logo area adequate, denition stored.

On 08 8 Flash logo area not adequate.

4 O 00 0 Not used. Fixed to o.

5 O 00 00 No thermal user-dened characters written to ash.

On 20 32 Thermal user-dened characters written to ash.

6 O 00 0 Not used. Fixed to o.

7 – – – Undened.

Notes

Ifthedatatransmittedfromtheprinterafteroutputtingthiscommandtotheprinteris“0xx1xx10”(x=0or1),processthe

data as a normal status.

Exceptions

When nisoutofthespeciedrange,thecommandisignored.

Send printer software version

ASCII US V

Hexadecimal 1F 56

Decimal 31 86

Theprinterreturns8bytescontainingtheloaderandashsoftwareversion.Therst4bytesreturnedareanASCIIstring

for the loader version.

Thesecond4bytesareanASCIIstringfortheashversion.Example:For1.234.56(8bytes),theloaderversionis1.23

andtheashversionis4.56.

Real time commands

The real time commands provide an application interface to the printer even when the printer is not handling other

commands(RS-232Ccommunicationinterfaceonly):

• Realtimestatustransmission:GS(Hex1D)sequenceandDLE(Hex10)sequence

• Realtimerequesttoprinter:GS(Hex1D)sequenceandDLE(Hex10)sequence

• Realtimeprinterstatustransmission

Thebatchmodeprinterstatuscommandsareplacedintheprinter’sdatabufferastheyarereceivedandhandledbythe

rmwareintheorderinwhichtheywerereceived.Ifthepaperexhaustswhileprintingdatathatwasinthebufferahead

ofthestatuscommand,theprintergoesbusyattheRS-232Cinterfaceandsuspendsprocessingthedatainthebufferuntil

paperisreloaded.Thisistrueforallerrorconditions:knifehomeerror,thermalprintheadoverheat,etc.Inaddition,there

isnowaytorestarttheprinterafterapaperjamorothererror,whenusingbatchmodestatuscommands.

Therealtimecommandsareimplementedintwowaysinordertoovercomethelimitationsofbatchmodestatus

commands.Bothimplementationsofferthesamefunctionality;whichoneyouchoosedependsonthecurrentusageof

yourapplication.

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HP Value Serial/USB Receipt Printer II Manual de usuario Pagina 75