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Toner Cartridge / Developing Unit Main Unit Theory of Operation
2-28
II Composition/Operation
7. Toner Cartridge / Developing Unit
7.1 Composition
Key Name Function/system
[1]
Photo Conductor/Y, M, C, K • The drum surface on which an image of each color of
toner is formed for subsequent transfer of the image to
the Transfer Belt
•OPC drum (φ30 mm)
[2]
Cleaning Blade • Scrapes residual toner off the surface of the Photo
Conductor
[3]
Toner Collecting Screw • Conveys the waste toner scraped off by the Cleaning
Blade into the Waste Toner Storage Tank
[4]
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 others to accom-
modate a greater amount of waste toner
[5]
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
4138to2029c1
4138to2024c1
4138to2018c7
4138to2030c1
[11]
[10]
[9]
[8]
[6]
[5]
[1]
[2]
[3]
[4]
[7]
K
[13]
C
M
Y
[12]
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