Canon Color imageCLASS MF8170c Basic Manual page 113

Print quality may deteriorate if you touch or damage the drum that is set inside. Be
careful not to touch the drum or open the drum protective shutter. Be careful not to hold
or touch the portions that are not described for this procedure such as the sensors. It
may result in damage to the machine.
Drum protective
shutter
Sensors
Do not expose the drum cartridge to direct sunlight or strong light.
Remove the packing materials (7 pieces).
Remove the packing materials a and b by hooking your fingers into the tab and
pulling them in the direction of the arrows.
Replacing the Drum Cartridge
8
8-25