How to print using receipt printer?

[eluser]Unknown[/eluser]
Hi, I have built some POS application and I already hosted it. I need to be able to give the customers a receipt of their order.

My client is using a receipt printer (Epson TM220pd), my question is How can I print the invoice generate in php using the receipt printer?

I've already tried using the printer_php.dll but it still gives me the "Call to undefined function printer_open()". Any ideas how to do this?

[eluser]jairoh_[/eluser]
i'm interested to this also.

[eluser]TheFuzzy0ne[/eluser]
You didn't mention the steps you took to enable the DLL.

I take it you're running your server on Windows?
Have you installed the PECL extension?
Have you enabled php_printer.dll as an extension in your php.ini?
Have you tried putting php_printer.dll into the 'ext' directory of your PHP installation?
Have you verified that it's installed using phpinfo()?
Have you tried manually loading the DLL at runtime using dl()?