HP 3100, 3150 manual Drum rotation functional check

Drum rotation functional check

The photosensitive drum, located in the toner cartridge, must rotate for the print process to work. The photosensitive drum receives its drive from the main drive assembly. To verify that the drum is rotating:

1Open the printer door.

2Remove the toner cartridge.

3Mark the drive gear on the cartridge with a felt-tipped marker. Note the position of the mark.

4Install the toner cartridge and close the printer door. The start-up sequence should rotate the drum enough to move the mark.

5Open the printer 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 toner cartridge gears. If the drive gears appear functional and the drum does not move, replace the toner cartridge.

Note	This test is especially important if refilled toner cartridges have been
	used.

178 Troubleshooting EN