Cross contamination wont go away

[SummitSignsandmore]

My printer ran out of blue ink over the weekend and all my line got cross contaminated on my VJ-1204.
All lines went to black.

I ran solid C,M&Y through the line to get the cross contamination out. The C and M cleared fine. The yellow hasn't. I have run about 30% of a Y cartridge / a normal clean and this is still my output. Green... any advise?

 

[Solventinkjet]

You're going to need to pop the dampers off the yellow and pull ink through with a syringe. It's probably just very deep in the line.

 

[SummitSignsandmore]

You're going to need to pop the dampers off the yellow and pull ink through with a syringe. It's probably just very deep in the line.

Thank you.