4. Turn the "B1" lever [A] counterclockwise to lower the transfer corona unit. 5. Remove the knob screw [B] and gently pull out the imaging unit [C]. Then place it on a clean sheet of paper. 6. Remove the cover [D] from the imaging unit (1 screw and 1 snap [E]). 7. 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. 8. Remount the cover on the imaging unit, and install the unit in the copier (1 knob screw). Then turn the "B1" lever clockwise to raise the transfer corona unit.