Chapter 8
8-4
8.1.4 Development Block
0019-5015
imageRUNNER C1022 / imageRUNNER C1022i / Color imageRUNNER C1030 / Color imageRUNNER C1030iF
In this block, toner is adhered to the electrostatic latent image on the photosensitive drum to make it visible by the contact development method.
In the contact development method, the developing cylinder is closely engaged with the photosensitive drum. Development is performed when toner is transferred
from the developing cylinder to the photosensitive drum.
The toner (developer) used in the machine is a non-magnetic single-component toner, composed of resins, etc.
Step 4: Development
On the surface of the developing cylinder, toner is leveled by the developing blade to make an even layer of toner.
In this condition, the toner is charged negative due to the friction between the developing blade and the rotating developing cylinder, and the surface of the devel-
oping cylinder is charged negative.
Since the potential on the developing cylinder surface is lower than the light area on the photosensitive drum, the toner is separated from the developing cylinder
at the area where the photosensitive drum is engaged with the developing cylinder, and is adhered to the light area of the photosensitive drum. This makes the
electrostatic latent image on the photosensitive drum visible.
Since the potential in the dark area on the photosensitive drum is lower than the potential on the developing cylinder surface, the toner is not separated from the
developing cylinder.
F-8-6
8.1.5 Transfer Block
0019-5016
imageRUNNER C1022 / imageRUNNER C1022i / Color imageRUNNER C1030 / Color imageRUNNER C1030iF
In this block, the toner on the photosensitive drum is transferred to paper, following four steps.
Step 5: Attraction
Paper is adhered to the ETB.
Since the machine transports paper upward, the paper is attracted to the ETB by electrostatic force so that it is not displaced from the feed path.
The fed paper is charged positive by the attraction roller, and is transported while being adhered to the ETB.
A positive DC bias is applied to the attraction roller.
F-8-7
Developing blade
light area
dark area
light area
dark area
Photosensitive drum
Developing cylinder
ETB
ETB engaged roller
Paper
Attraction roller
DC bias
Summary of Contents for Color imageRUNNER C1022
Page 2: ......
Page 6: ......
Page 19: ...Chapter 1 Introduction ...
Page 20: ......
Page 93: ...Chapter 2 Installation ...
Page 94: ......
Page 96: ......
Page 111: ...Chapter 3 Basic Operation ...
Page 112: ......
Page 114: ......
Page 119: ...Chapter 4 Main Controller ...
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Page 122: ......
Page 135: ...Chapter 5 Original Exposure System ...
Page 136: ......
Page 138: ......
Page 151: ...Chapter 6 Original Feeding System ...
Page 152: ......
Page 154: ......
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Page 171: ...Chapter 7 Laser Exposure ...
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Page 185: ...Chapter 8 Image Formation ...
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Page 223: ...Chapter 9 Pickup and Feed System ...
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Page 259: ...Chapter 10 Fixing System ...
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Page 262: ......
Page 268: ...Chapter 10 10 6 ...
Page 279: ...Chapter 11 External and Controls ...
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Page 311: ...Chapter 12 e Maintenance imageWARE Remote ...
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Page 323: ...Chapter 12 12 9 F 12 27 ...
Page 349: ...Chapter 13 Maintenance and Inspection ...
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Page 355: ...Chapter 14 Measurement and Adjustments ...
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Page 361: ...Chapter 15 Correcting Faulty Images ...
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Page 385: ...Chapter 16 Error Code ...
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Page 399: ...Chapter 16 16 11 ...
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Page 401: ...Chapter 17 Special Management Mode ...
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Page 411: ...Chapter 17 17 7 ...
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Page 413: ...Chapter 18 Service Mode ...
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Page 493: ...Chapter 19 Upgrading ...
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Page 500: ...Chapter 19 19 4 3 Click Next F 19 4 4 Select a USB connected device and click Next F 19 5 ...
Page 501: ...Chapter 19 19 5 5 Click Start F 19 6 6 Click Yes F 19 7 Download will be started F 19 8 ...
Page 504: ...Chapter 19 19 8 4 Select a USB connected device and click Next F 19 12 5 Click Start F 19 13 ...
Page 506: ...Chapter 19 19 10 ...
Page 507: ...Chapter 20 Service Tools ...
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Page 515: ...Appendix ...
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Page 533: ...Oct 29 2010 ...
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