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COST OF PRINT HEAD? 
TOOK OUT THE 5 PRINT CART. I LOOK AT THE PRINT HEAD AND SEE 5 OF WHAT APPEAR TO BE SOME SORT OF FILTER WHICH WOULD BE BENEATH EACH CART. THE 3 COLORED AND THE "SMALL" BLACK ALL APPEAR TO BE OK. THE ONE BENEATH YHE "BIG" BLACK CART APPEARS TO BE "SHAT...