I had a Brother laser printer for a long ass time. I asked for it for a gift for either Christmas or my birthday as a teen because I’m a dweeb. It had an awesome feature called something like “continue print” or “print continue” or something that would force the printer to attempt to print even if your toner was low.
I think nowadays I’ve heard even Brother’s newer models don’t have this feature and will force you to replace the toner when it’s low instead of just going until it physically can’t anymore.
But after many years, the print head started printing funky and blotchy even with fresh toner and even after attempting to clean and fiddle with the corona wire. I’m sure someone that knew more than me could have figured it out eventually.
I was graduating from grad school at the time and just ended up chucking it in the bin when I moved, but it pained me a bit to do so considering how much of a tank it was. After I graduated I rarely need to print anything and usually just run to a print shop instead.
I wholeheartedly recommend Brother laser printers from the time, but I can’t say whether or not modern ones are as good or not.