ES 3037/3037e Maintenance • 186CHANGING THE IMAGE DRUMWhen the image drum reaches the end of its product life, ***CHANGE DRUM is displayed in the control panel (*** is the colorname). If printing continues without replacing the image drum,CHANGE *** IMAGE DRUM is displayed and printing is cancelled.Change the toner cartridge and clean the LED head at the sametime as changing the image drum.Image drum life is approximately 23,000 sheets of letter-size media.This assumes a typical office environment where 20% of print jobsare one page emails, 30% are 3-page documents containing onlywords (no graphics) and 50% are print runs of 15 pages or more.1. Switch off the printer and open the top cover.zmopen top cover.epsCAUTION!• Never expose the image drum to light for more than 5minutes.• Never expose the image drum to direct sunlight.• Never touch the surface of the green drum inside theimage drum unit.