bizhub c6500

[Cleaningblade]

Hello


after paper jam A3 picture face down i replaced the Adu Sensor
and the both Decurler roller and the oneway gears

i have only in an A3 Paper(80-100g/m2) picture "face down" some time a buckle or wave..
I cleaned all the plastic parts and all the roller's - replaced the clutch for the roller
but it still happens every 20 or 50 copy....
has anybody an idea

thanks

[Jantje]

did you replace the photosensor or the plastic actuator they call a sensor in the parts manual. Normally the problem is with a worn actuator 65AA 5131 1.

Succes

[Stirton.M]

Though rare, it might be a worn clutch at that end of the ADU, considering how intermittent your problem is. Check the harnesses for solid connection for the drive motor and clutches at that side, as well as the ADU pwb. It might be that simple. Could also be a failing driver chip on that board. Usually we swap the board outright when having intermittents like this, and observe what happens after. Sometimes it is the board, other times it is clutches.

Also, if I recall, there are some timing adjustments that can be tweaked to help in certain situations, such as fuser line speed can be a tad too high. But if the machine was working fine before and no such adjustments were made, then this is unlikely.

[brian155]

the fuser unit causes this problem, in the past we have had bushings damaged but also pressure between belt and roller

[Cleaningblade]

it was the fusing unit :-) - after replacing all thel fuserroller/ Bearings exitroller -fusingmotor and oneway gears on the fusing, the problem was fixed after 3 '000'000 copies