|User’s Guide: English 203Replacing the Toner Cartridge! This machine will only operate using the tonercartridge specified for this machine. The use of anyother toner will result in the display of an operationerror and in machine malfunction.Refer to “Options and Accessories” for information onobtaining the correct toner cartridge.! Warning: Be careful when handling the toner cartridge.Do not let toner spill onto your clothing or other porousmaterials. If you experience any problems with toner,see the “Installation, Safety.”Toner YieldThe number of pages you can print with one toner cartridgedepends on the type of documents you usually receive orcopy.A toner cartridge will print about 5,000 pages/letter size ofstandard business communications at a typical print coverageof 4% (equivalent of CCITT No. 1 test chart).The first toner cartridge installed in a new image drum unitwill have a decreased yield because the image drum unit hasto be filled.If your machine displays REPLACE TONER CART, replace thetoner cartridge with a new one. However, if the print qualityis good enough, you can continue to use the toner cartridgewithout replacing it until the print quality becomesunsatisfactory. If the print density becomes low even beforeyour machine displays REPLACE TONER CART, gently wipethe lens surface of the LED array (see Step 8). If the printquality does not improve, replace the toner cartridge.
