Oki 5700 - Manual (Page 105)

English
Troubleshooting 8-7
Toner Cartridge Replacement
The number of pages that can be printed with a toner cartridge depending
very much on the type of documents printed. The first toner cartridge
installed in a new image drum unit will yield fewer printed pages because
the image drum unit itself has to be filled.
When the machine displays a message requesting a new toner cartridge,
the toner cartridge should be replaced by a new cartridge immediately.
However, if the print density is still very good, the cartridge can continue
to be used until the density becomes noticeably poor. If the print density
becomes low even before the machine displays the toner warning, gently
wipe the lens surface of the LED array (see following instruction steps). If
the print density does not improve, replace the toner cartridge.
Caution
Your machine will not operate with an incorrect toner cartridge
installed. Be sure to read toner packaging carefully before
purchase and installation.
WARNING
TAKE CARE WHEN HANDLING THE TONER CARTRIDGE.
DO NOT LET TONER SPILL ON CLOTHING OR OTHER
POROUS MATERIALS. SEE THE SECTION ON SAFETY AT
THE BEGINNING OF THIS MANUAL.
1 Turn off the power switch.
2 Grasp the document tray from the bottom and lift up, swinging the
document tray and control panel up and back.