Magenta spots on DC 250

[ivacopy]

Hi there

I have very small spots from magenta toner on the prints. Does anybody have idea what is the problem?
I tried couple of thinks: I replace the drum and IBT belt, but nothing has change

[Goshe]

Which model?

[ivacopy]

Dali je sega dobre

[Goshe]

Aham

[rtapia]

spots can occur from overtoned developer. try changing the developer and running atc setup

[ivacopy]

Hi
I changed developer + assy with another , there is no problem for now.
Thank you