Hey there just wanted ta throw out there...My TR4522 was on the same paper jam trip sitting out support code 1300 when there wasn't even really a paper jam & sometime it wouldn't even roll paper or try to print & would spit out paper jam bologna... Well after a year of sitting I gave the "bottom cleaning" tray/plate suggestion (also I gave the tray & alignment railings a light dusting with a very soft clean paint brush..) a go & low & behold this sucker is "Back Online Printing Again!!" Just folded paper as so, ran the bottom cleaning twice...& its all good now... How to do bottom cleaning video tutorial is here >>>>>>>
https://www.youtube.com/watch?v=q0egZnpd2tw
Good luck 2 All!