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Item
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Specifications/Mechanism/Method
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Photosensitive drum
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Material
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OPC high durability drum (E-drum)
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Drum diameter
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φ30
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Cleaning method
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Cleaning blade
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Process speed
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230mm/sec (at cassette pickup)
137mm/sec (at manual feeder pickup)
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Primary charging
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Charging method
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Primary charging roller
AC bias constant voltage control: approx. 550 to 2600Vp-p
DC bias constant voltage control: approx. -400 to -800V
DC bias switch control (variable according to environment sensor detection)
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roller diameter
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φ14
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Charging method
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Brush roller (φ10)
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Developing
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Developing method
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Dry one-component jumping development
AC bias constant voltage control: approx. 800Vp-p
DC bias control: approx. -300 to -700V
DC bias switch control (variable according to density setting, environment sensor detection)
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Developing cylinder diameter
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φ20
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Toner
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Magnetic negative toner
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Toner level detection
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Toner detection by toner level sensor (inside sub hopper and developing unit)
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Transfer
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Transfer method
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Transfer roller
DC constant current control: approx. 20 µA
Cleaning bias control: -2700V (DC constant voltage control)
DC current level control (variable according to environment sensor detection, paper type, paper width, source of paper)
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Roller diameter
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Φ16
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Charging method
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Cleaning bias application
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Separation
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Separation method
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Static separation (Static eliminator) + Curvature separation
DC constant voltage control: -2800V (high bias), -2300 (low bias)
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Waste toner
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Collected into waste toner box
Waste toner box capacity: approx. 750g
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