Need Help Vs420 Yellow ink drops...

Hello,

My Vs420 Yellow ink drops...a lot!
I keep getting a yellow blob of ink dropping onto the print and obviously ruining the print.
You can see Yellow on the head underneath, even after a clean. It’s a new head, a few months old.
Any ideas on how to stop it???

Thank you.

 

Hello,
I did replace the dampers, I have more and it was my next move to replace the Yellow ones...
Definitely no damage to the head.
I will update, hopefully do this tomorrow...

Thank you.

 

Hello,
I changed the damper...all is good.
THANK YOU.