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OPC drum
Charger roller
Laser unit
Development roller
Image transfer roller
Intermediary transfer belt(ITB)
Paper transfer roller(PTR)
Fusing unit
The electrophotography process consists of the following steps:
Drum charge 
Laser exposure Development Transfer Fusing
Drum charge …… The charge roller [2] gives an equal charge across the surface of the OPC drum [1].
Laser exposure …… Laser beam [3] creates an electrostatic latent image on the OPC drum [1].
Development …… The development roller [4] carries toner to the latent image on the OPC drum [1].
Image transfer
Drum-to-belt transfer …… Toner images created on each OPC drum [1] are transferred sequentially to the ITB [6].
Belt-to-paper transfer …… Toner image on the ITB [6] is transferred onto the paper when the paper passes through the PTR [7].
Fusing …… The fusing unit [8] applies heat and pressure to fuse the toner image onto the paper.
