Two toner bottles on separate cradles comprise the toner bank. Each cradle contains:
- Toner bottle
 - Toner bottle set sensor
 - Toner bottle motor
 - Toner bottle cap motor
 Toner bottle cap sensor
Toner bottle motor (rear view)
Bottle cap sensor
Bottle cap motor (top view)
Bottle set sensor (bottom view)
Before you begin:
- Each toner bottle is on a separate cradle where it rotates on a spiral groove to feed toner into the toner supply unit at the rear.
 - Each cradle has two motors and two sensors.
 - The removal of each motor and sensor is described once. The procedure for each bottle cradle is the same.