Multiple stripes

[Norprinter]

Have you tried replacing cyan, yellow, and magenta drum cartridge? Looks familiar to when we get the same stripes on our Versant. 

[iroiro]

Hi

We have big problems with stripes along paper in different colors. Image attached.
2nd BTR is changed, but no success. When looking closer we see yellow stripe in top, 3 cyan stripes further down and at last one stripe in magenta.
Any suggestion?