Definitely a Brother laser. Toner for models a few years old can be had on Ebay for $7-10 each. From what I understand, they've added a circuit board or sensor on the new ones to deter refilling of existing cartridges as well as aftermarket cases. But as we all know, work-arounds are inevitable. My recommendation is to get the part number for the toner and then shop online for aftermarket prices so there is no surprise.
I remember the time I bought a Kodak color inkjet because it had an extra large black cartridge and got suckered into the cost per page savings scam they were pitching. Well...if you're familiar with inkjets, they use a tiny bit of ink everytime you print as a test/nozzle cleaning exercise and eventually go empty, even if you don't use them.
Long story short, the POS wouldn't run with an empty color cartridge EVEN if you were only printing B&W...all due to a sensor/microprocessor on each individual cartridge. After going around with customer service and telling them they could all **** off and to tell management that their perfectly functioning 3 in 1 unit was heading for the dumpster, I did exactly that and then bought a Brother. Never looked back. That was 12 years ago.