Epson TM-T88V-i User Manual page 188

To set 58mm die-cut label (with black mark):
<script type="text/javascript" src="epos-print-3.x.x.js"></script>
<script type="text/javascript">
<!--
var address = 'http://192.168.192.168/cgi-bin/epos/service.cgi?devid=local_printer';
var canvas = document.getElementById('myCanvas');
var epos = new epson.CanvasPrint(address);
epos.paper = epos.PAPER_LABEL_BM;
epos.layout = { width: 580, height: 0, margin_top: 15, margin_bottom: -15
epos.cut = true;
epos.print(canvas);
//-->
</script>
188
offset_cut: 25, offset_label: 15 };