Consumables and maintenance > 59CONSUMABLES AND MAINTENANCEThis section deals with the replacement of the toner cartridge and image drum and generalmaintenance.CONSUMABLE ORDER DETAILSPlease always use genuine consumables.TONER CARTRIDGE LIFEHow long your toner cartridge lasts depends on the print density; the percentage of thepage that prints black. A typical letter has 3% to 5% print density; graphics usually havehigher density. Higher print density means toner is used up faster. At 5% print density, astandard toner cartridge will print an average of 3500 pages. Remember, this is only anaverage:actual results may vary.The first toner cartridge installed in a new printer has to fill the image drum reservoir andsaturate the developing roller with toner. The toner cartridge that is supplied with thisprinter normally produces about 1,500 pages after installation.W HEN TO REPLACE THE TONER CARTRIDGEWhen the toner is running low, TONER LOW is displayed in the operator panel LCD. AfterToner Low displays, the printer will print about 100 more pages then display Toner Emptyand stop printing. Printing will resume after a new toner cartridge has been installed.R EPLACING THE TONER CARTRIDGEIt is recommended that you clean the LED array at the same time as you change the tonercartridge.The toner used in this printer is a very fine dry powder contained in the toner cartridge.Have a sheet of paper handy so that you have somewhere to place the used cartridge whileyou install the new one.Dispose of the old cartridge responsibly, inside the pack that the new one came in. Followany regulations, recommendations, etc., which may be in force concerning waste recycling.ITEM LIFE ORDER NO.Toner, standard, B410d, B410dn, B430d,B430dn, B440dn3500 A4 @ISO/IEC1975243979102 (EU only)43979107 (non-EU)Toner, high capacity, B430d, B430dn, B440dnB440dn7,000 A4 @ISO/IEC1975243979202 (EU only)43979211 (non-EU)10000 A4 @ISO/IEC1975243979207 (EU only)43979212 (non-EU)Image drum 25,000 A4 pages 43979002WARNING> Never expose a toner cartridge to an open flame. It can causean explosion and you can be burned.> Be sure to switch off and unplug the machine before accessingthe interior of a machine for cleaning, maintenance or faultclearance. Access to a live machine’s interior can cause electricshock.