How to I redirect to another page *after* printing document?

Question

I have an event called SubmitResponse().

A user is presented with a list of questions and possible responses. After completing the responses, the user

Answer 1

you can use this code :

window.print();
window.onafterprint = function(event) {
    window.location.href = 'index.php'
};

using window.print() callBack!!