Theory of Operation 2-43
Xerographics
■ Developer Assemblies 
The Developer Assemblies receive toner from the Toner Cartridge and through 
electrostatic attraction, transfer toner to the latent image on each of the four color 
drums.
■ Imaging Unit 
The Imaging Unit carries out the operations of the printing process, such as 
charging, primary and secondary transfer. The Imaging Unit consists of the 
following parts:
■ Drum (Y M C K) ■ Refresher (Y M C K)
■ Charge Roller (Y M C K) ■ IDT2
■ IDT1 (2) ■ IDT2 Cleaner
■ IDT1 Cleaner (2) ■ Waste Toner Reservoir
s6300-062
Developer Assemblies
Developer Frame Assembly
Laser Unit
Imaging Unit
Waste Toner Reservoir