I've got a used HP Deskjet 842c with new color and black and white cartridges as well as the most updated drivers. Problem is, the only colors it seems to print are in the pink to lavender range. Black is fine, but color is totally off. The printer test page prints succesfully but its all a bunch of blues, pinks and purples. Everything is set up properly and i'm at my wits end trying to figure out what the problem is. Anyone have any ideas?