Lexmark Monochrome Laser Complete Printer Reference (1.7 MB) - Page 138

Toner cartridge The average yield for the Optra W810 toner cartridge is 20,000 pages at approximately 5% coverage. Actual yield depends on the density of print on each page and whether Toner Saver is set on. See page 148 for more information on changing print quality settings. Replacing the toner cartridge The engine code interprets data it receives from the toner cartridge to determine when to display the Replace Toner message. (If you have set Toner Low Alarm to Single or Continuous, the printer stops printing, sounds a series of beeps, and displays the Replace Toner Cartridge message.) The read switch checks the toner level by detecting the position of the toner detection plate. When the sensor detects that the toner is nearly depleted in the subhopper, the printer enters toner recovery mode. It supplies toner to the photoconductor cartridge until the toner-to-carrier ratio has recovered to 14%. Although Replace Toner appears on the display, enough residual toner remains in the photoconductor cartridge that you can press Go and continue printing for a short while before the printer displays the Replace Toner To Continue message. However, we strongly recommend that you change the toner cartridge immediately. If you do not, the printer stops printing when Replace Toner To Continue appears on the display. You 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 Printer consumables 138