HP Value Serial/USB Receipt Printer II Manual do Utilizador descarregar pdf (Página 87)

Chapter 3: Programming Commands 87

Bar codes

Thesecommandsformatandprintbarcodesandaredescribedinorderoftheirhexadecimalcodes,

withtheexceptionoftheQRcodeoverview,whichisdescribedintheorderofuseincreatingtwo-

dimensionalQRcodes.

These commands describe operation for 80mm paper.

QR code Overview

QRcodeisa2-dimensionalmatrixsymbologyconsistingofanarrayofnominallysquaremodulesarrangedinanoverall

squarepatternusingtheQRsymbology.Auniquepatternatthreeofthesymbol’sfourcornersassistsindeterminingthe

barcodesize,position,androtation.

AseriesofsevencommandsarerequiredtocreateandprintQRcodes.

 1.SelectmodelforQRcode  1D286B04003141n1n2

 2.SetthesizeforQRmodule  1D286B03003143n

 3.Setdataparsingmode   1D286B03003144m

 4.Selecterrorcorrectionlevel  1D286B03003145n

 5.Storesymboldata   1D286BqLqH315030f1…fk

 6.Printsymboldata   1D286B0300315130

 7.TransmitQRcodeprintsize  1D286B0300315230

The details of each command are described below.

Note: The settings for model, size of module, and error correction level are effective until the printer is reset, or the power

is turned off.

Select model for QR code

ASCII GS ( k EOT NUL 1 A n1 n2

Hexadecimal 1D 28 6B 04 00 31 41 n1 n2

Decimal 29 40 107 4 0 49 65 n1 n2

Value of n1: 31h = Selects model 1

32h = Selects model 2 (default)

Value of n2: 00h (default)

Thiscommandspeciestheoriginalversion(m=1),ortheenhancedformofthesymbology(m=2).Model2isthe

recommended model.

Set size for QR code module

ASCII GS ( k ETX NUL 1 C n

Hexadecimal 1D 28 6B 03 00 31 43 n

Decimal 29 40 107 3 49 67 n

Value of n: 01h ≤ n ≤ 10h

Default: 03h

ThiscommandsetsthesizeoftheQRmoduleton dots.

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HP Value Serial/USB Receipt Printer II Manual do Utilizador Página 87