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ck1
09-21-2006, 09:35 PM
i have one di450 when use A3 or A4R.F4 paper always jam at entry duplex unit section , A4 portrait ok !.anyone know what happen ? THANKS

kalindd
09-24-2006, 08:58 PM
Just a shot , but take a look at the fusing drive section . Just after the motor there is a torsion spring and ball bearings , they gets out of position and the fuser rollers can't rotate with the speed they have to. Hope this will help.

Downunder
09-26-2006, 10:06 PM
Remove duplex tray from machine. Inside copier look to the left where tray went in to the entry guide, there are two rollers, clean them. Most techs forget about these.