Cheap And Discounts DV512 DV-512 Developer Unit for Konica Minolta Bizhub C224 C364 C284 C554 C454 Assembly With Powder Wholesale. Buy Directly From Merchant Shop1103755387 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.