[Kelvin Rawles.]

Damper was the first thing I tried.
The nipples seem solid.

Surely though, if it was an air leak, with the damper having some ink in it after pulling through with a syringe below the captops, it would print for a short while?

[Kelvin Rawles.]

So, I did an experiment.
I Put the Yellow line/damper onto the magenta side and vice versa.
The machine then prints yellow ok from the magenta nozzles and the magenta displays the same issue as yellow did.

Does this suggest that maybe the manifold adapter is letting air in? I cant detect any leakage when I flush though.

[Kelvin Rawles.]

I would have thought though, that as i am drawng yellow ink through manually, the head is filled and should at least print until the next fill cycle?

I’ve done another head soak and medium clean and now virtually nothing at all from yellow in the test print.
I’ve also tried printing loads of 100% yellow and – nothing.

Does a head just give up like that?

[Kelvin Rawles.]

I think so as I was able to pull ink through with a syringe on the tube under the cap top.