My Epsom WF-2450 began loading by pulling the left side of the paper down and not the right, thus causing a paper jam. There is no paper in the machine that could cause this problem. The guide is properly positioned and it has adequate paper. I cleaned the rollers with alcohol and the sensor strip. I ran all the maintenance functions. I began using third party ink that didn't print well for awhile, before this happened, so I am not sure if that had anything to do with it. I also have an Epsom XP-310 that will not print anything (blank pages). Ink cartridges are full and installed properly. I did ran all the maintenance functions and still nothing. Your help with this would be really appreciated.