Very good information with clear drawings. Thanks!
Text excerpt from page 18 (click to view)
26 September 1997
6. Turn the "B1" lever [A] counterclockwise to lower the transfer corona unit. 7. Remove the knob screw [B] and gently pull out the imaging unit [C]. Then place it on a clean sheet of paper. 8. Remove the cover [D] from the imaging unit (1 screw and 1 snap [E]). 9. Pour in the developer [F] evenly into the imaging unit. Then rotate the outer gear [G] for one or two turns to distribute the developer as shown. NOTE: When installing new developer or manually rotating the development roller, always make sure to turn the gear in the direction shown above. Also do not rotate the gear more than 3 turns to prevent damage to the unit. 10. Remount the cover on the imaging unit, and install the unit in the copier (1 knob screw).