How to use extjs with phantomjs?

I've just discovered phantomjs and need to use it with my extjs4 app to create pdf reports.

I tried many places for examples or directions but could not find any hints to help me with this.

Did anyone know how to use extjs with phantomjs. A small example would be very much appreciated.

I can even provide small extjs code and want to see the appropriate code for phantomjs:

Code:

    Ext.create('Ext.Component', 
    {
        html: 'Hello world!',
        width: 300,
        height: 200,
        padding: 20,
        renderTo: 'surface'
    });

Thanks