Replacing the black gear and plate:
The order of replacement is: replace the black gear first, then the black plate. When replacing the gear, make sure its protrusion (located in the middle of the black gear) points to the left.
Stick the PrinterTechs alignment tool (the threaded end) through the empty screw hole on the metal side panel. Use the tool to line up the black gear as it is being replaced. Rotate the gear until the tool slides all the way through the hole in the middle of the gear and holds the gear in place.
Once the black gear is held in place by the tool, replace the black plate. Make sure the correct side of the plate--the one with a rim in the middle--faces the back of the black gear you've just installed.
Again, use the tool to help line up the black plate and then slide the tool all the way to hold both the gear and the plate in place.
CONTINUED . . .
