At work we use a couple Brother laser printers internally for non-important documents, mainly copies of customer invoices and printing e-mails for hard copy backups. This means that we’re going through a toner cartridge every week, and the OEM carts are insanely expensive (more than we spent on the printer). I made the suggestion that we should try some 3rd party / remanufactured carts in order to save a few hundred dollars a month in toner so we gave these a shot. The idea was that even if only 1/3 carts worked we’d still be in the green compared to OEM prices.