Changing the Image Drum
When the image drum reaches the end of its product life,
CHANGE DRUM
name). If printing continues without replacing the image drum,
CHANGE ***** IMAGE DRUM
cancelled.
Change the toner cartridge and clean the LED head at the same
time 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 jobs are one page emails, 30% are 3-page documents
containing only words (no graphics) and 50% are print runs of 15
pages or more.
• Never expose the image drum to direct sunlight.
• Never expose the image drum to light for more than
5 minutes.
• Never touch the surface of the green drum inside
the image drum unit.
1. Turn off the printer.
2. Open the top cover.
open top cover.eps
C7350/7550 User's Guide: Maintenance • 491
is displayed in the control panel (*** is the color
CAUTION!
is displayed and printing is
***