Printable Barcode Type; Qr Code Printing; Printing Size - Epson TM-U330 Series Development Manual

for TM-U330.
・QR Code
・Code39
・Code128
・Code128 parsed

3.4. Printable Barcode Type

The TM-U330x models allow the following barcode types.
・QR Code
・Code39
・Code128
・Code128 parsed

3.5. QR CODE Printing

3.5.1. QR CODE Printing
When printing QR CODE, set the Symbology parameter to one of the following
value
PTR_BCS_QRCODE:
PTR_BCS_OTHER + 3
used for maintaining compatibility).
PTR_BCS_OTHER + 4

3.5.2. Printing Size

Because the width and length of QR CODE are the same, printing is done to the
inner part at a size closest to it by using the value specified by the Width
parameter. Therefore, the height of print is not affected by the Height parameter.
If the Height parameter is less than 0, an error occurs.
The print size is determined by the version of QR and the size of the module.
Because the version of QR is determined by the data length and type, you can
use the size of the module to adjust the print size.
barcode cannot fit into the print area (depending on the paper width, layout
settings, etc.) then OPOS_E_ILLEGAL is returned and at this moment
ResultCodeExtended becomes zero.
For QR, it differs from other two dimensional barcodes; if the encoded data result
is not known, then the print width cannot be obtained. If the print width cannot be
obtained, the page mode range for 90-degree rotated printing cannot be specified.
Print using QR CODE model 2.
: Print using QR CODE model 1 (old specification,
: Print using QR CODE model 2.
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APPLICATION DEVELOPMENT GUIDE
POSPrinter (TM-U330x)
Version 3.00 Feb. 2019
If the two dimensional