Digital BW, The Print

Hello All.
I'm nonprofessional photographer  of Italy.
Congratulations for your mailing list. In Italy not exist so complete information on the BW printing.
Please if somebody have experience of BW printing with Canon W6200 PG?
I employ Mediastreet INKS: Matte Black, Photo Black and Lite Black.
I use Ecco Standard Coated (www.eccofineart.com) of Florence 
My trouble is the dark light (II, III, and IV zone) mixed and not  good distinct.
Excuse for may bad english.
Regards
Benedetto


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