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User’s Guide 173
Replacing the Toner Cartridge
!
This machine will only operate using the toner
cartridge specified by Konica for this machine. The use
of any other toner will result in the display of an
operation error and in machine malfunction.
Refer to “Options and Accessories” for information on
obtaining the correct toner cartridge.
!
Warning: Be careful when handling the toner cartridge.
Do not let toner spill onto your clothing or other porous
materials. If you experience any problems with toner,
see the “Installation, Safety.”
Toner Yield
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 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.