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asked Jan 29, 2018 at 10:31am
Hp HP Color LaserJet Pro M451

HP color 400 M451dn Jam when duplexing

I have a HP color laserjet pro 400 M451dn jam when duplexing. The printer print fine on simplex,but it jam on the duplex job. Open the rear dor I can see the whole page in the back. Anyone see this problem before? I have check the entire duplex path, and find no obstruct issue.