Image Formation System; Overview - Canon imageRUNNER ADVANCE 4551i Service Manual

Image Formation System

Overview

■ Features
• High image quality is supported.
Charge control and the parts for image formation process are optimized.
• High durability drum
E drum is adopted.
■ Specifications
Item
Photosensi- Material
tive
Drum diameter
drum
Cleaning method
Process speed
Primary Charging method
charging
Roller diameter
Charging method
Developing Developing method
Developing cylinder di-
ameter
Toner
Toner level detection
Transfer Transfer method
Roller diameter
Charging method
Separation Separation method
Waste toner
Specifications/Mechanism/Method
OPC drum (E-drum)
Φ30
Cleaning blade
At cassette pickup
• 51 ppm machine : 230 mm/sec
• 45/35 ppm machine : 230 mm/sec
• 25 ppm machine : 137 mm/sec
At manual feeder pickup
• 51 ppm machine : 137 mm/sec
• 45/35/25 ppm machine : 137 mm/sec
Primary charging roller
φ14
Brush roller (φ10)
Dry one-component jumping development
φ20
Magnetic negative toner
Toner detection by toner level sensor (inside Toner Feed path and developing unit)
Transfer roller
φ16
Cleaning bias application
Static separation (Static eliminator) + Curvature separation
Collected into waste toner container
Waste toner container capacity: approx. 750g
89
Primary Charging Roller
Photosensitive Drum
Transfer Roller
Developing Cylinder
2. Technology