When should I replace the toner cartridge, and what are the available options?

An error message will appear on the control panel or in the Status Monitor when it is time to replace the toner. The standard toner (TN-223) yields approximately 1,400 pages for black and 1,300 pages for cyan/magenta/yellow, while the high yield toner (TN-227) yields approximately 3,000 pages for black and 2,300 pages for cyan/magenta/yellow.