init printer

get printer status

feed paper

blank lines

cut paper

set text size

set line spacing

set print width

set print text

print a row of the table

Set barcode width

Set the height of the barcode

print barcode

print barcode

set qrcode size

set qR code error correction

set left margin of barcode and QR code

Printer QR code

Set paper specifications

openCashBox

print Image

set Double QR Size

set Double QR1 Level

set Double QR2 Level

set Double QR1
Margin Left

set Double QR2
Margin Left

set Double
QR1 Version

set Double
QR2 Version

printDoubleQR

getPrinterPaperDistance

getPrinterCutTimes

partialCutPaper