Maintenance
Replacing the Toner Cartridge
!This machine will only operate using toner cartridges specified by OKI for the OKIFAX 5700 and 5900. The
use of any other toner will result in the display of an operation error and in machine malfunction.
Toner Cartridge Kit - Part# 40815606
The number of pages you can print with one toner cartridge depends on the type of documents you usually receive or copy. A toner cartridge will print about 2,500 pages/letter size of standard business communications at a typical print coverage of 4% (equivalent of CCITT No. 1 test chart). The first toner cartridge installed in a new image drum unit will have a decreased yield because the image drum unit itself has to be filled.
If your machine displays REPLACE TONER CART, replace the toner cartridge with a new one. However, if the print quality is good enough, you can continue to use the toner cartridge without replacing it until the print quality becomes
unsatisfactory. If the print density becomes low even before your machine displays REPLACE TONER CART, gently wipe the lens surface of the LED array (see Step 8). If the print quality does not improve, replace the toner cartridge.
!CAUTION: When you open the top cover, you will see a
label that reads:
1Lift up on the document tray and swing it up and out of the way.
78 Handbook
