Dear sir... its my 3 mashine ir7086 jamming problem i have 3 same mashine.... but that jamming After resistance jamming_on tracefer sepration assembly and on belt.... its tired to me.... that promblem when i in morning mashine has to start then after big job as 200-500 copies made job the mashi has in start time is gose well in 100-200 copies then it gose at 400-500 then jamming has to start.... and is bigger problems in both side copies job as duplex job... why it jamm hard.. and it done in same in 3 mashines... i small think research it resistance timing problem.. but how it solved?... i send video and photo in attachment see it.. thank you..