problem xerox 550

Hello everyone, I have a problem with the color outputs (spots ?). On the other hand in black print only, I do not have the spots. Thank you for your help

<attempted translation to English from original post>

 

If I reply in English, would you have any understanding of my messages?
I can try to use a translator, but the technical terms might become lost...

 

We can try because if you have the solution it would be great! I have a bilingual brother; he should be able to help me. Thank you !

 

Something is going on while the toner is on the image transfer belt. It could be something coming in contact with the belt (warped part dragging the toner) or it could be the ITB cleaning station failing in some way.

you can see the streaks on the image are made of the primary colors, not a blend or mix of color