My CLJ 9500mfp can't align the color planes - error code 54.1E.3A, 41.19.00

[JaniD]

Hi!

I have a "dancing" or "jogging" color planes which moves 1-5mm left or right randomly on every page.
It is not a reigstration-related problem, because every printed page have different positions, sometimes even matches the good position as well.

I have cleaned all of the sensors what i can, including the 4 encoder plates and IR-gate-pairs on the developer motors, and the density sensor as well.

Can somebody tell me what to try, where to start?

Pictures:

02:
http://lefel.1-click.hu/clj9500/02.png

03:
http://lefel.1-click.hu/clj9500/03.png

error log:
http://lefel.1-click.hu/clj9500/err.png

[Valsimot]

I had something similar on the same printer model, but mine only had problem with cyan being out of position. If you printed something 2 copies the 2nd copy sometimes would be fine.

Replaced cyan drum motors including encoder plates and sensors and the connecting PCB for all colors and no problems after that.

[JaniD]

Thank you for your reply!

The encoder plates looks nice and clean now, maybe the gears are weared out, i will check that and will be back...