I do a lot of printing in black ink. With receipts, contracts, forms, etc its getting expensive to change the ink in my canon printer. The printer was designed with photo printing in mind and nothing about it is cheap. a black cartridge runs me $30 and I may get 300 sheets out of it.
So what is the printer out there with the cheapest black ink? It does not have to be fancy because its just going to print b&w documents. I would go the laser route but can not justify spending $200+ just to print docs.