Oki B410d B410//B420/B430 User Guide (English) - Page 65
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IMAGE 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. WHEN 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. REPLACING THE IMAGE DRUM. 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. > The B430dn model has been illustrated below. The principles are the same for all the models of this printer. 1. Press the cover release and open the printer's top cover fully. WARNING! If the printer has been powered on, the fuser may be hot. This area is clearly labelled. Do not touch. 2. Holding it by its top centre, remove the used image drum and toner cartridge, out of the printer. Consumables and maintenance > 65