Epson TM-T88V-i User Manual page 88

 mode :
( Optional parameter, Object type : String)
Specifies the color mode. (in firmware Ver.1.2 and later)
Return value
ePOS-Print Builder Object
Exception
Parameter " ... " is invalid
Example
<script type="text/javascript" src="epos-print-3.x.x.js"></script>
<script type="text/javascript">
<!--
function buildMessage() {
var builder = new epson.ePOSBuilder();
var canvas = document.getElementById('canvas');
if (canvas.getContext) {
var context = canvas.getContext('2d');
builder.addImage(context, 0, 0, canvas.width, canvas.height);
}
}
//-->
</script>
To print an image 300 dots wide and 300 dots high in page mode:
var canvas = document.getElementById('myCanvas');
var context = canvas.getContext('2d');
var builder = new epson.ePOSBuilder();
builder.addPageBegin();
builder.addPageArea(0, 0, 300, 300);
builder.addPagePosition(0, 299);
builder.addImage(context, 0, 0, 300, 300);
builder.addPageEnd();
88
Setting
MODE_MONO
MODE_GRAY16
undefined
(When not specified)
Return value
Exception
Description
Monochrome (two-tone)
Gray scale (16-tone)
Monochrome (two-tone)
ePOS Builder
Error
Object type
Object type