Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buyer Beware

This printer has been finicky from day one, and now it has quit entirely on me, with a sudden error reading of "Incompatible black ink cartridge". Not only have I always used the proper HP ink cartridges, this error came up out of the blue, without me so much as touching the cartridge, much less changing it. After searching HP's web site, nothing came up for this particular problem, and, the final blow, I just learned that free phone support is no longer offered for this product (at least not with a Mac operating system), rendering it a big, 2-year old heap of junk.