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Technical Reference > Image Formation System > Construction > Image-formation Process
Image Formation System
Construction
■ Outline
The image-formation system is the central hub of the printer. It forms the toner image on the
media.
The following are the main components of the image-formation system:
• Four cartridges
• ITB
• Laser scanner unit
• Fixing assembly
The DC controller controls the laser scanner unit and high-voltage power supply to form
the toner image on the photosensitive drums according to the VIDEO signals. The image is
transferred to the print media through the ITB and fixed.
Fixing
Assembly
Cartridge
Laser Scanner
ITB Cleaning
unit
ITB
Secondary
Transfer Roller
High-Voltage Power Supply
DC Controller
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Technical Reference > Image Formation System > Construction > Image-formation Process
■ Image-formation Process
The image-formation process consists of the following nine steps divided among six functional
blocks:
Step 1: Primary charging
Step 2: Laser-beam exposure
Step 3: Development
Step 4: Primary transfer
Step 5: Secondary transfer
Step 6: Separation
Step 7: Fixing
Step 8: ITB cleaning
Step 9: Drum cleaning
7.Fixing
6.Separation
Laser Beam
Photosensitive
Drum
5.Secondary transfer
Registration
Primary Transfer
Pad
F-2-3
Delivery
Fixing block
Static image formation block
2.Laser beam exposure
Development
1.Primary charging
block
3.Development
Drum cleaning block
ITB cleaning
9.Drum cleaning
block
8.ITB cleaning
4.Primary tansfer
Transfer block
Pickup
2-5
Flow of paper
Rotation of ITB/
photosensitive drum
Block
Step
F-2-4
2-5
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