HP Photosmart A636 Photo Printer

No offence to the reviewer of this product but I wish you would have added that using a try colored Cartridge is very costly. Because when you run out of one color you have to replace the cartridge even if there are enough of the other two colors to print more images. HP knows this and they make a killing on these types of Cartridges. In this case it can be even more costly as this unit does not have a black Cartridge. When it prints an image with a black or very dark background this product uses a composite black which means it will use some of each color to print black which in turn uses even more ink. Just wanted to point this out.