Epson TM-L90 series 개발 매뉴얼 - 페이지 23

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correction level).

3.5.4.4 Mode 6

0x01 to 0xFF can be specified to the Data parameter, and there is no restriction

on the format. Since the length of the encoded data is not known, the data length

cannot be correctly verified. For this reason, if the printer determines, after

examining the original data length, that the data can more or less be printed, it

tries to print the data; if the length is more than that, then an error occurs. (An

error occurs if Data is zero byte or more than 80 bytes.)

3.6 QR CODE Printing

3.6.1 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

PTR_BCS_UQRCODE

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.