Oki C 9400 - Manual (Page 310)

On the average, the toner cartridge will produce approximately 15,000 sheets at 5% print
density. This can vary greatly depending on the relative amount of a particular toner color used
in your print jobs.
Important! The first toner cartridges you place in your printer will only produce about
half as many sheets. This is normal, as the new image drum reservoirs and developing
roller system must saturate with toner.
Be sure you have a replacement toner cartridge on hand after the XXX TONER LOW message
(e.g., BLACK TONER LOW) appears on the second line of the display. At this point, the printer
will print about 100 more sheets.
You must replace the toner cartridge when the
INSTALL NEW TONER
nnn: XXXXX TONER EMPTY
message appears.
For example:
INSTALL NEW TONER
413: BLACK TONER EMPTY
At this point the printer will stop printing. Printing will not resume until the empty toner cartridge
is replaced.
Image Drums
Replacing Image Drums
CHANGE XXX IMAGE DRUM
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