I purchased refillable ink carts from inkjetcarts.us and bulk pigment ink. When I print on inkjet vinyl all the colors except for black print correctly. My black comes out dark brown which I believe is called bronzing. This happens when I use the premium photo paper semi gloss paper selection even though I turn off color management and raise the print density to +20 it still gives me dark browns instead of black. What I did notice is that when selecting premium presentation paper matte, high quality, and high speed unchecked the black prints black and not dark brown. The problem with printing in "premium presentation paper matte" is the high quality setting is not very good because images come out pixelated and jagged. If there were a way to select premium presentation paper matte and select best quality I am sure my prints would come out perfect but there is no way to select best quality for that media.