Review on HP 906XL Black Ink Cartridge for HP OfficeJet Pro 6900 Series - T6M18AN by Thomas Unruh

DO NOT BUY! Great at first, what a great thing, at least I thought so. I don't print a lot of pages, but I print regularly. Print quality was excellent, maximum for the first 50 pages, then it stopped printing in black. Drivers removed and reinstalled, firmware updated, printhead cleaned, printer serviced, etc. Blah blah blah blah blah blah blah blah blah blah, you get the picture. DO NOT BUY! I think I'll go back to the regular 902 cartridge. Never had a problem with the small cartridge.