A genuine Kyocera Black Laser Toner Kit (TK-170) ensures great quality and trouble-free performance with your Kyocera FS-1320D or FS-1370DN laser printer. The Toner indicator at the bottom-right corner of your printer's operation panel will flash when the current cartridge is running low, so make sure you order a replacement cartridge as soon as possible. When you see a solid red light, the current cartridge is exhausted. This standard yield cartridge is packed with enough black toner to print 7,200 pages.