Oki MPS420b MPS420b User Guide (English) - Page 51
Replace, Image, Eplacing
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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. 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. Consumables and Maintenance > 51
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