have a Ricoh JP 1030 duplicator that keeps lighting up the jam indicator and says clear jam on display. when i look the last copy before it says this is sent through. i have cleaned both rollers, friction pads adjusted and readjusted the tension spring and nothing seems to work. It may make 20 copies trouble free or even went as far as 330 copies trouble free, but keeps giving the jam message. There does not seem to be anything blocking the paper path as well. Is there a sensor or sensors that could cause this? ANY HELP WOULD BE GREATLY APPRECIATED!!!!!! THANK YOU!!!!

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