Lexmark W810n User's Reference (3.7 MB) - Page 125

Replacing supplies Installing a toner cartridge The toner cartridge contains the printer's supply of toner, the material that adheres to the paper to create the printed page. When the toner cartridge is empty, Replace Toner appears on the operator panel display, indicating that it is time to replace the toner cartridge. NOTE: Enough residual toner remains in the printer at this point that you can press Go and continue printing for a short while. However, we strongly recommend that you change the toner cartridge immediately. If you do not, the printer will stop operating when Replace Toner To Continue appears on the display. You will then have to replace the toner cartridge before you can continue to use the printer. Although we advise you to shake a new toner cartridge vigorously before you install it in the printer, never remove a used cartridge and shake it in an attempt to extend the life of the cartridge. After removing a used toner cartridge, we recommend that you only insert a new cartridge in the toner box. 111