init printer
get printer status
feed paper
blank lines
cut paper
set text alignment
set text size
set font
set font style
set line spacing
set print width
set print text
set print text alignment
print a row of the table
Set barcode width
Set the height of the barcode
set barCode Content print position
print barcode
print barcode
set qrcode size
set qR code error correction
set left margin of barcode and QR code
Printer 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
