Install a genuine Samsung Black Toner Cartridge (SCX-6320D8/ELS) and you can depend on crisp text and punchy illustrations from your Samsung laser printer. When your printer displays a Toner Low error message, you'll need to order a replacement toner cartridge. Install it when you see the Toner Empty - Replace Toner error message. This standard yield toner cartridge is packed with enough black toner to print 8,000 pages.