1. Pull out the image transfer unit about 5cm.
  2. Remove the controller box. (Controller Box)
  3. Remove the toner supply cooling fan (FAN5) (Toner Supply Cooling Fan (FAN5) : IM C2500/2000).
  4. Remove the duct (IM C2500/2000).
  5. Remove the toner supply motor unit (K) [A].
  6. Remove the sub hopper (K) [A].