Digital BW, The Print

I know I'm not the only one using the 2200 and UT7 here so someone
must encounter the same thing when changing out a low cart for a fresh
one.

After replacing a cart I seem to have to wait overnight for it to flow
ink well enough (or whatever else is happening) to get a clean nozzle
check and/or make a print.  No amount of cleaning cycles make it flow
better. I try making prints, bad ones to coax the ink to flow.  No good.

MIS used to suggest 2 cleaning cycles after replacement, or at least
that was printed on the box but it no longer is. 

I seem to remember that 2 years ago the UT7 carts were spongless? Is
that right.  Well now they aren't and the problem is worse. 

This isn't new.  This has always been a feature if UT7 in my experience.
OE color carts never do this. 

It gets better though.  Last night it was an LK cart replacement that
killed me, stopped me dead.  This morning the LK AND teh Mag cart
print broken patterns.

So who has this problem?  Have you found a solution?  CFS could maybe
prevent this as I'd stop changing carts but I can't imagine anything
but a mess when I have to install color carts for larger color prints.

Thanks

Neil