Hi there, I'm Tim and will be assisting you today. I have over 15 Years as an Engineer and have been with eBay, DoD and many others. I will do my very best to help you. If you like i can offer remote access and a call.
Hey Tom, this is a sign that the mechanical feed system is dying and needs to be serviced or replaced. This is a pretty common mechanical failure, especially in an older printer like this. Cost to service will probably be about 150.00 USD.