- Remove the Image transfer belt unit. (Image Transfer Belt Unit)
 - Remove the paper transfer roller unit. (Paper Transfer Roller Unit)
 - Remove the fusing unit. (Fusing Unit)
 - Remove the shield position sensor unit. (Shield Position Sensor (S50) (IM C6000/5500/4500))
 Remove the TM/ID sensor unit [A].
- When installing the TM/ID sensor unit.
 - 1. Attach the screw of the front side [B]
 - 2. Attach the screw of the back side [C]
 - When installed in reverse order, an SC may occur because the sensor position has shifted.
 
- Disconnect the connectors.
 - Remove the TM/ID sensor [A].