bizhub c500 stripes problem

[Manipula]

Hi, it's me again.
The problem appeared after printing 4k pages (one task) in grayscale. I would add that in these prints stripes do not appear - only in CMYK. Transfer belt is clean, but on the surface of the image drums shows toner (also stripes) - especially the yellow.
I took it and cleaned - it seems that the cleaning system is operational.
I swapped charge wire units it did not help - do you have any ideas?


Adds a scan.

18927

[Mick01]

Hi,
It does appear to me to be a drum cleaning blade issue. It could also be a blockage in the waste toner system causing waste toner to build up inside the drum units. Vacuum out the waste toner system and the drum units and see if this resolves the problem.
Hope this helps.