http://blog.csdn.net/jdh99/article/details/42585987
http://www.oschina.net/question/1438043_235020
http://blog.163.com/ctcg326%40126/blog/static/758129102012451034427/
http://codego.net/447659/
未测试：Python调用打印机参考例子
原文：http://www.cnblogs.com/ribavnu/p/4790262.html
