This is what I was going to say. I used to repair printers for a living. I can't tell you how many times simply replacing the junk refurbished / generic toner cartridges fixed the issue with the printer, or how many times such a cartridge actually damaged the printer. They aren't worth using as far as I'm concerned. I rarely ever saw a off brand or refurbished toner cartridge actually make it to running out of toner in the first place. You won't get as many pages out of one as you would an OEM toner cartridge and you'll incur far more trouble with them. In my experience, the savings you get by going with the off brand / refurbished toners is often an illusion.I always treat generic toner as "there be dragons". While it can be fine most of the time, there are always those dodgy toner drums out there that will explode and fill the entire printer with toner dust.
Worked at a hospital a few years ago and we used a 3rd party toner company, had to dump them and go with someone else because started getting toner cartridges that'd explode or dump piles of toner on paper and make a huge mess.