Barcode Printing; Color Printing - Epson TM-L90 Developer's Manual

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Barcode Printing

You can print barcodes, using the GS k command, for any of the following types of barcodes:
UPC-A, UPC-E
JAN 8 (EAN 8), JAN 13 (EAN 13)
CODE 39
ITF (Interleaved 2 of 5)
CODABAR (NW-7)
CODE 93
CODE 128
Barcode size is specified by GS h for the height, GS w for the width. HRI character related
commands are GS H for the position , GS f for font selection.

2 Color Printing

Color selection can be made by commands ESC r, GS ( L and GS ( N. Functions of those
commands are as follows:
GS ( N
Used with character data. It affects on each character. The character color can be specified for
character by character.
GS ( L
Affects on the graphics data defined by the GS ( L.
Rev. A
TM-L90 Developer's Guide
Application Development Information 4-5