For prolonged, high-quality copy output from your Kyocera Mita photocopier, install a genuine Kyocera Black Laser Toner Kit (370AM010). Order replacement toner when you see a flashing red light next to Add Toner on your copier's control panel. Then swap it for the old cartridge when you see a solid red light accompanied by the error code E33 on the copier display. This standard yield cartridge is packed with enough black toner to print 15,000 pages.