User guide

202 Chapter 6 - Troubleshooting EN
Drum rotation functional check
The photosensitive drum, located in the print cartridge, must rotate for
the print process to work. The photosensitive drum receives its drive
from the main drive assembly.
Note This test is especially important if refilled print cartridges have been
used.
1 Open the print cartridge door.
2 Remove the print cartridge.
3 Mark the drive gear on the cartridge with a felt-tipped marker.
Note the position of the mark.
4 Install the print cartridge and close the print cartridge door. The
startup sequence should rotate the drum enough to move the
mark.
5 Open the print cartridge door and inspect the gear that was
marked in step 3. Verify that the mark moved.
If the mark did not move, inspect the main drive assembly to make
sure that it is meshing with the print cartridge gears. If the drive gears
appear functional and the drum does not move, replace the print
cartridge.