C7350 User’s Guide> 128CHANGING THE IMAGE DRUMWhen the image drum reaches the end of its product life, ***CHANGE DRUM is displayed in the control panel (*** is the colourname). If printing continues without replacing the image drum,CHANGE *** IMAGE DRUM is displayed and printing is cancelled.Image drum life is approximately 23 000 sheets of A4. (Thisassumes a typical office environment where 20% of print jobs areone page emails, 30% are 3 page word documents and 50 areprint runs of 15 pages or more).1. Switch off the printer and open the top cover.CAUTION!> Never expose the image drum to light for more than5 minutes and never expose the image drum todirect sunlight.> Never touch the surface of the green drum insidethe image drum unit.
