When purchasing toner cartridges produced by Xerox themselves, like the 106R03940, you are also getting the peace of mind that there is no more reliable consumable for any compatible machine. Each genuine Xerox standard capacity 106R03940 offers the very highest quality of print too, meaning you can use the toner with confidence for the 10,300 page estimated prints.Xerox guarantee the 106R03940 directly, showing the confidence they have in this product and any other consumable they manufacture for your printer. You can use the original 106R03940 in any of the printers found listed on this page, including the Xerox VersaLink B610.