High capacity toner cartridges, like this Xerox 006R04377, are a great way of balancing out the cost of your consumables and the amount of prints they can produce. You can use this top-quality Xerox 006R04377 black toner cartridge in conjunction with the B310 and any other compatible printer found listed on this page. The Xerox 006R04377 has an estimated page yield of 8,000 pages, meaning the price per page is actually very low for a genuine consumable. Xerox are incredibly confident in the 006R04377 and even offer a direct warranty on the unit, in the rare instance that a problem occurs.