UNBELIEVABLE! HP Photosmart c4780 Ink On Sale Andrew Lu April 1, 2010 April 1, 2010 2 Comments on UNBELIEVABLE! HP Photosmart c4780 Ink On Sale Unbelievable! HP Photosmart c4780 printer/inks are on sale! Find the printer in The Source for only $99.99, you could save up to $50; at the same time, we 123inkcartridges offer you… Read more »