Lexmark OptraImage Color 1200r User's Guide - Page 107

Toner cartridges The average yield of each toner cartridge is 6,500 pages. The actual yield depends on the density of print on each page and whether you have Toner Saver set On. When the printer detects that the toner supply in a particular cartridge is getting low, it posts the 88 color Toner Low message. If you do not already have a replacement toner cartridge available, order one at this time. Press Go to clear the attendance message. The Supplies status message then appears on the second line of the display to remind you there are supplies that need attention. Open the Supplies Menu to see which toner cartridge is low. The printer also continues to display the 88 color Toner Low message each time you turn the printer on and each time you open and close the top cover, until you replace the toner cartridge or until it's empty. After recognizing the toner is low, the printer counts 250 pages and then displays 88 color Toner Empty. When this message appears, you must install a new toner cartridge before you can continue printing. Note: When a Toner Empty messages appears on the display, you cannot use your printer until you replace the toner cartridge. If you notice a reduction in print quality after the Toner Low message appears, you may want to replace the cartridge before the Toner Empty message is displayed. It is also possible that the developer roll inside the toner cartridge needs replacing before you use all of the toner in the cartridge. See "Identifying other problems" on page 109 for information about printing problems that may indicate it's time to replace the toner cartridge. When you need to install a new toner cartridge, refer to the installation instructions that come with the new cartridge. When do I replace them? 93