I have an HP Photosmart but it’s a different model, doesn’t have all those separate vats for color. Anyway, it stopped working for awhile after some windows update (the kind in which Mr Gates breaks into your house in the middle of the night and messes with your machinery without asking your permission, and just tells you about it in the morning). I downloaded and installed new drivers and it worked again. Had to go through the same thing after I got the new computer.
HP doesn’t make the ink supply system. they don’t even like it for that matter, it reduces ink costs to about 1/10 of the cost of constantly replacing cartridges. The throw away cartridge game is a shameless ripoff.