Digital BW, The Print

I've had a bad cyan/magenta overspray problem (
http://www.tronicart.com/ink/spray.html )with my 1270
for a while now and am ready to swap out the heads.  

What is the easiest and/or cheapest way to go about
this?  (I'm no longer under warranty)

Is it even cost effective?  Would I be better off
buying a used 1270/1280 on Ebay or something? I've got
a CIS w/ MIS pigs on the 1270   ..and a 1280 for b&w.

btw.. flushing, swapping carts hasn't helped.

 thanks in advance,

        -daniel p\ufffdrez




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