Oki PRINTER MPS420B - Manual (Page 51)

Consumables and Maintenance > 51
I
MAGE DRUM LIFE
The life of an image drum depends on a number of factors, including temperature and
humidity, the type of paper used, and the number of pages per job.
The image drum should last approximately 25,000 pages continuous printing. This
number is approximate because different numbers of pages are printed each time and
the environmental conditions and the paper type used may vary.
W
HEN TO REPLACE THE IMAGE DRUM
When the drum reaches 90% of its life, a CHANGE DRUM message is displayed in the
operator panel LCD. Change the image drum when the print becomes faint or begins to
deteriorate.
R
EPLACING THE IMAGE DRUM .
1. Press the cover release and open the printer’s top cover fully.
WARNING
• Never expose the image drum to an open flame. It can cause
an explosion and you can be burned.
• Be sure to switch off and unplug the machine before
accessing the interior of a machine for cleaning, maintenance
or fault clearance. Access to a live machine’s interior can
cause electric shock.
Note
It is recommended that you change the toner cartridge and clean the LED
array at the same time as you change the image drum.
WARNING!
If the printer has been powered on, the fuser may be hot. This
area is clearly labelled. Do not touch.