Toner Cartridge (TC) / TC Overall Composition Main Unit Theory of Operation
2-8
II Composition/Operation
[6]
Grid Mesh • Evens out the charge deposited from the Electrode to
make the surface potential uniform throughout the sur-
face of the Photo Conductor
• The grid voltage is applied to the Grid Mesh
[7]
Cleaning Blade • Scrapes residual toner off the surface of the Photo
Conductor
[8]
Toner Collecting Screw • Conveys the waste toner scraped off by the Cleaning
Blade into the Waste Toner Storage Tank
[9]
Cleaning Unit • Recovers waste toner from the surface of the Photo
Conductor and stores it
[10]
Waste Toner Storage Tank • Stores waste toner of each color
• Fixed type; requires no service jobs, including disposi-
tion of the stored waste toner
• The storage tanks for Y, M, and C are of the same
shape, while that for K is larger than the others to
accommodate a greater amount of waste toner
[11]
Charge Corona • Deposits a charge to the surface of the Photo
Conductor
• DC comb electrode Scorotron system
[12]
Electrode • DC comb electrode Scorotron system
• Maintenance free; no cleaning mechanism is available
[13]
Regulator Blade/1st, 2nd • Regulates the height of toner on the surface of the
Developing Roller
• The blade bias voltage is applied to the blade
[14]
Toner Chamber • Tank in which toner fed off from the Hopper is tempo-
rarily stored
[15]
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
[16]
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
[17]
Replenishing Screw • Feeds toner through the Conveyance Pipe to the
Toner Chamber
• Mixes toner in the Toner Chamber so that it is charged
• Two-shaft agitating system
[18] Connection • Conveys toner from the Hopper to the Developing Unit
[19] Agitating Blade • Agitates toner in the Hopper
[20]
TC Detection Board (CSIC) • Detects a TC installed in the machine; it detects not
only a new TC, but also a half-used one
• Stores information on each individual TC (period of
time of use, etc.)
Key Name Function/system
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