Main Unit Theory of Operation Toner Cartridge / Developing Unit
2-29
II Composition/Operation
[6]
Developing Roller • Supplies toner fed by the Supply Roller to the surface
of the Photo Conductor
• Conveys toner to the surface of the Photo Conductor
through potential difference
• The developing bias voltage is applied to this roller
• A given distance from the Photo Conductor is main-
tained by means of the Ds Roll
• Single component developing system
[7]
Toner Chamber • Tank in which toner fed off from the Hopper is tempo-
rarily stored
[8]
Supply Roller • Supplies toner in the Toner Chamber to the Develop-
ing Roller
• Conductive elastic roller
• Conveys toner to the surface of the Developing Roller
through potential difference
• The supply bias voltage is applied to this roller
[9]
Agitating Screw • Agitates toner fed off by the Replenishing Screw with
that in the Toner Chamber so that it is charged
• Two-shaft agitating system
[10]
Charge Neutralizing Sheet • Electrically removes toner off the surface of the Devel-
oping Roller
• The charge neutralizing bias voltage is applied to this
sheet
[11]
Replenishing Screw • Feeds toner fed through the Conveyance Pipe to the
Toner Chamber
• Agitates toner in the Toner Chamber
• Two-shaft agitating system
[12]
Developing Motor/Y, M, C (M1) • Drives the rollers and screws of the Y, M, or C Devel-
oping Unit
• De-energized in the monochrome mode
• Brushless DC motor
[13]
Developing Motor/K (M5) • Drives the rollers and screws of the K Developing Unit
• Provides drive also for the Waste Toner Box
☞ 2-57
• Brushless DC motor
Key Name Function/system
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