This little Brother is very functional for the price. Prints, Scans, and copies well. However, the low toner warning has been coming on for months. Granted, most of our printing is done at the office on another printer so this is low volume, but we have printed several hundred pages since the warning told us to replace the cartridge. What an absolute waste it would have been to have replaced it when the program told us to. Besides the unnecessary expense to us, what a detriment to our environment. Fuel burned to ship for recycle, energy used to recycle, fuel burned to ship the recycled product to new consumer. I'm not a green freak, but am concerned about wasteful use of our natural resources. Come on, Brother, recalibrate your sensors so that replacement warning comes on at the appropriate time. Here's an idea, indicate the actual number of pages left at typical toner usage per page and allow the consumer to set when the warning comes on - 500 pages, 200, 100 pages, etc. Toner replacement warnings that come way too early, and often, only serve to irritate otherwise loyal customers and harm the environment.