Frontier 350 - yellow dots

[a8o2ge]

Hello to all. I'm working with Frontier 350 standalone (without scanner).
In the photos I have yellow dots, although there are other distortions. I printed on different papers everywhere the same. Something with electronics? Thank you for any and all suggestions. Sorry for my broken English.

23679.jpg

[a8o2ge]

Update
- changed FMB20 - no results
- changed AOM - R - G - B - no results
Help!

[a8o2ge]

Update
- changed fire-wire cable ond fire-wire card in PC - no results .
I try today changing laser unit ...

[a8o2ge]

laser changed - still bad photos ;(