Digital BW, The Print

When I switched over an Inkset in my CIS system I got in touch with 
NoMoreCarts  for their
recommendations.

They said the ink in the cart was the problem, not the tubes, because 
the carts have sponges in them
and that the old ink, in effect, never goes away.

They sell (through their agents) replacement carts very inexpensively 
and say that is the way it should be done.

My caveat is, make sure you keep track of which tank each tube runs to. 
I didn't and had to do the
whole thing over again. On a 5 tank cart I got only one tube on the 
right position.

J.Z.