Choose a genuine Samsung Black Toner Cartridge (SCX-D6345A/ELS) and enjoy high quality, reliable print output from your Samsung SCX-6345N or SCX-6355N laser printer. Order a new cartridge when you see the Toner Low error message on your printer's screen. When you see Toner Empty, simply swap the replacement for the empty cartridge. This standard yield toner cartridge is packed with black toner to print up to 20,000 pages.