Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
What you will need to do is clean or replace the paper feed roller. You can order a full kit of replacement rollers for your machine here , http://amzn.to/2aXnvHq
And this is a solid video that explains the problem, and how to replace both of the rollers needed. https://youtu.be/5HT1HWQFuc4
This is something the average person should be able to do by following the video and having the replacement parts on hand. If you have further questions, let me know.
I strive to provide great service, and greatly appreciate a 5 star rating clicked and submitted when you are satisfied.. I always answer follow up questions.Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.