Digital BW, The Print

--- "interrogtr" <interrogtr@a...> wrote:
> 
> I've bought a set of refillable cartridges for UT7 ink from MIS. 
> ...Things were working well for a couple of months but all of 
> a sudden I'm getting air bubbles (foam?) in 
> several cartridges.  ... Purging the offending carts 
> helps sometimes but the problems come back almost immediately.  

I'm seeing this same behavior in my 2200 with MIS ez-fill carts,
also. Very frustrating, in that I work hard to purge the 
bubble, get a clean nozzle check, and then it re-appears,
often as one large bubble over the output port. Tipping and
tapping clears it, temporarily. This is not happening in all 
my carts--and I can't recall if I've ever let the ink levels 
get extremely low in the one's that are affected.

In any case, I've decided I need to start over with fresh carts,
assuming I've compromised the ones I have somehow. What I can't
decide is if to replace only the one's that are showing the 
problem, or just punt them all (2 sets--ouch) and start fresh. 

-david