[Jamming] MP 2550 Jam in Duplex unit after paper skew

[Codex]

Hello

One of my customers have a problem with his MP 2550, the machine works fine for 200-300 copies, then suddenly the paper starts to skew, making a strange "paper" noise in the duplex unit, and after a while the machine jams , if he makes one sided copies everything is ok.... , i checked the two transparent mylars, the entrance and exit guide, checked the Duplex/Bypass motor, cleaned the fuser entrance guide, but everything seems ok, when i test the machine she can makes 400-500 copies without any problem, and then the problem is back again......sometimes after 200, sometimes after 600 copies.......any ideas??

[flo]

Re: MP 2550 Jam in Duplex unit after paper skew

Look in your interchange unit. There is a gear on exit roller in the backside (right) over the fusing thats most a problem. sometime its broken or leaving place and the exit roller brakes paper flow

[wester]

Re: MP 2550 Jam in Duplex unit after paper skew

Look in your interchange unit. There is a gear on exit roller in the backside (right) over the fusing thats most a problem. sometime its broken or leaving place and the exit roller brakes paper flow

Try checking the fuser entry plate the fingers on that may have broken you can file these down to get by. Sometime they will only jams when duplexing.

[Codex]

Re: MP 2550 Jam in Duplex unit after paper skew

Flo thanks!... But why the problem occurs after 200-300 duplex prints and not immediately?

[CrapAimer]

Re: MP 2550 Jam in Duplex unit after paper skew

I have had the plastic guide in the exit section twisting out of shape with the heat and snagging the exit rollers