index.js

phantom.casperPath = 'node_modules/casperjs';
phantom.injectJs(phantom.casperPath + '/bin/bootstrap.js');

var casper = require('casper').create(
    {
      waitTimeout:20000
    }
  );

var url = casper.cli.args[0];
var start = casper.cli.args[1];
var end = casper.cli.args[2];

var h = 595, w = 842, pageArray = [];

for (var i = start; i <= end; i++){
  pageArray.push(i);
}

casper.start(
  url+'#'+start, function(){
    this.echo('starting'); // display the title of page
    this.viewport(w, h); // need to set viport here  for first page
  }
);

casper.then(function() {
  this.each(pageArray, function(casper,page) { 
    this.thenOpen(url+'#'+page, function() {
      this.echo(this.getTitle()); // display the title of page
      this.viewport(w, h);
    })
    this.wait(1000, function() { // 1s timeout to allow background image (css) to load... excessive, but works.
      this.capture('outputs/'+(page < 10 ? '0' : '')+page+'.png', {
        top: 0,
        left: 0,
        width: w,
        height: h
      });
    });
  });
});

casper.run();