Epson TM-T88V-i User Manual page 102

Example
To draw double horizontal lines in the following positions:
 Between 100 dots and 200 dots from the left end
 Between 400 dots and 500 dots from the left end
<script type="text/javascript" src="epos-print-3.x.x.js"></script>
<script type="text/javascript">
<!--
function buildMessage() {
var builder = new epson.ePOSBuilder();
builder.addHLine(100, 200, builder.LINE_THIN_DOUBLE);
builder.addHLine(400, 500, builder.LINE_THIN_DOUBLE);
}
//-->
</script>
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