Oki C834DN, User Manual, Page: 116 / 147

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Replacing Consumables and Maintenance Units
4
4.
Maintenance
Replacing the Image Drum
Life Span of Image Drum
When the “%COLOR% Image Drum Near
Life” message appears on the display screen,
prepare a replacement image drum.
If you continue printing, the message
“%COLOR% Image Drum Life” will be
displayed and printing will stop.
A guideline for replacing the image drum is
every 30,000 pages or so for A4 sized paper
(with single-sided printing). However, this
number of pages is for common printing
conditions (3 pages at a time). Printing one page
at a time reduces the drum life by about half.
The actual number of printed pages may be
halved again relative to the above guideline,
depending on the printing conditions.
If you continue to print more than the above,
the printer will force the printing to stop.
Note
● The actual number of pages you can print with the image
drum depends on how you use it. The above guideline
may be reduced by more than half, depending on the
conditions of printing.
● Though opening and closing the top cover may extend
the life of a image drum for a while, it is recommended to
replace it soon after the “ Install New image drum” is
displayed.
● The print quality may deteriorate after the toner cartridge
has been unpacked for a year. Replace it with a new one.
● When the <ENTER> button > [Admin Setup] >
[System Setup] > [Near Life Status] is set to
[Disable], the “%COLOR% Image Drum Near Life”
message does not appear.
Procedure for Replacement
Note
● If you use a new image drum with the toner cartridges
currently in use, the remaining amount indication of the
toner cartridges will not display correctly.
The messages “%COLOR% Image Drum Near Life” or
“%COLOR% Image Drum Life”
may also be displayed
soon after replacement.
● The image drum (the green tube) is very delicate. Handle
it carefully.
● Do not expose the image drum to direct sunlight or very
bright interior light (approximately more than 1500 lux).
Even under the normal interior light, do not leave it for
more than 5 minutes.
● In order for the printer to exhibit its full performance,
please use genuine Oki Data consumables.
● Service for problems due to use of consumable items
other than genuine OKI consumables will incur fees
even in the warranty period or the maintenance contract
period. (Use of consumable items other than genuine OKI
consumables does not always cause problems, but please
exhibit caution when using those.)
● There is one toner cartridge for each color on the image
drum.
1
Prepare a new image drum.
2
Insert your finger into the recess on
the right side of the printer and pull the
front cover open lever (1) to open the
front cover (2) forward.
1
2
3
Press the top cover open button (3) and
open the top cover (4).
CAUTION
Possible to get
burned.
● The fuser unit is extremely hot. Do not touch
it.
3
4
4
Identify an empty toner cartridge by its
label color (5).
5