I ,m really reaching out for input here guys. Been fighting this for days. I get many Jam 21 jams that seem to occur in the fuser. The lead copy will be rolled up at the upper guide /pickoff area. The trail edge has cleared the heat roller but is curled up (wavy). There are no classic pickoff finger symptoms, such as nicks or accordian pages. Just rolled up, not coming out of the fuser. It doesn't make it to the exit/ heat pipe section..I can't even se the paper unless I open the upper guide with the pickoffs on it and there it is ..just sort of rolled up...jam 21... Oddly enough it will run several hundred pages ok the jam 21 for 20 pages in a row, then run ok again for 500+ copies.. Am I looking in the wrong place?? I replaced the entire, ENTIRE fuser unit 500K ago. Help...
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