Contents
6.2.2
Controlling the Intensity of Laser Light.....................................................................................................................6- 9
6.2.2.1
APC Control ............................................................................................................................................................................. 6- 9
6.2.3
Controlling the Laser Scanner Motor .....................................................................................................................6- 10
6.2.3.1
Controlling the Speed of the Laser Scanner Motor................................................................................................................ 6- 10
6.3
Parts Replacement Procedure ................................................................................................................. 6- 12
6.3.1
Laser Scanner Unit ................................................................................................................................................6- 12
6.3.1.1
Before Removing the Laser Scanner Unit ............................................................................................................................. 6- 12
6.3.1.2
Removing the Laser Scanner Unit ......................................................................................................................................... 6- 12
6.3.1.3
After Replacing the Laser Scanner Unit................................................................................................................................. 6- 13
Chapter 7
Image Formation
7.1
Construction ............................................................................................................................................... 7- 1
7.1.1
Specifications, Control Mechanisms, and Functions ...............................................................................................7- 1
7.1.2
Overview ..................................................................................................................................................................7- 2
7.1.3
Printing Process.......................................................................................................................................................7- 2
7.1.4
Static Image Formation Block ..................................................................................................................................7- 3
7.1.5
Developing Block .....................................................................................................................................................7- 5
7.1.6
Transfer Block..........................................................................................................................................................7- 6
7.1.7
Fixing Block..............................................................................................................................................................7- 7
7.1.8
ITB Cleaning Block ..................................................................................................................................................7- 8
7.1.9
Photosensitive Drum Cleaning Block.......................................................................................................................7- 8
7.2
Driving and Controlling the High-Voltage System ...................................................................................... 7- 9
7.2.1
Overview ..................................................................................................................................................................7- 9
7.2.2
Generation of the Primary Charging Bias ..............................................................................................................7- 10
7.2.3
Generation of the Developing Bias ........................................................................................................................7- 10
7.2.4
Generation of the Primary Transfer Bias ...............................................................................................................7- 11
7.2.5
Generation of the Secondary Transfer Bias...........................................................................................................7- 11
7.3
Image Stabilization Control ...................................................................................................................... 7- 11
7.3.1
Overview of Image Stabilization.............................................................................................................................7- 11
7.3.2
Timing of Image Stabilization Control ....................................................................................................................7- 12
7.3.3
Drum Film Thickness Detection .............................................................................................................................7- 12
7.3.4
ATR Control ...........................................................................................................................................................7- 13
7.3.5
D-max Control........................................................................................................................................................7- 14
7.3.6
PASCAL Control ....................................................................................................................................................7- 17
7.3.7
D-half Control.........................................................................................................................................................7- 18
7.3.8
ARCDAT Control....................................................................................................................................................7- 21
7.3.9
Color Displacement Correction Control .................................................................................................................7- 22
7.3.10
ATVC Control .......................................................................................................................................................7- 25
7.4
Special Control ......................................................................................................................................... 7- 26
7.4.1
Black band sequence.............................................................................................................................................7- 26
7.4.2
OHP black band sequence ....................................................................................................................................7- 26
7.4.3
Colour band sequence...........................................................................................................................................7- 26
7.5
Drum Unit ................................................................................................................................................. 7- 28
7.5.1
Drum Unit...............................................................................................................................................................7- 28
7.5.1.1
Overview ................................................................................................................................................................................ 7- 28
7.5.1.2
Detecting the Presence/Absence of the Drum Unit ............................................................................................................... 7- 29
7.5.1.3
Identifying a New/Old Drum Unit............................................................................................................................................ 7- 29
7.5.1.4
Opening/Closing the Toner Shutter ....................................................................................................................................... 7- 31
7.6
Toner Container ....................................................................................................................................... 7- 32
7.6.1
Overview ................................................................................................................................................................7- 32
7.6.2
Supplying Toner.....................................................................................................................................................7- 32
7.6.3
Detecting the Level of Toner..................................................................................................................................7- 34
7.6.4
Toner Container Detection.....................................................................................................................................7- 35
7.7
Transfer Unit............................................................................................................................................. 7- 35
7.7.1
Outline of the Transfer Unit....................................................................................................................................7- 35
Содержание iR C2880 series
Страница 1: ...Aug 29 2006 Service Manual iR C3380 2880 Series ...
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Страница 23: ...Chapter 1 Introduction ...
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Страница 53: ...Chapter 2 Installation ...
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Страница 127: ...Chapter 3 Basic Operation ...
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Страница 137: ...Chapter 4 Main Controller ...
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Страница 161: ...Chapter 5 Original Exposure System ...
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Страница 188: ...Chapter 5 5 24 F 5 68 4 Remove the original sensor 2 hook 1 F 5 69 ...
Страница 189: ...Chapter 6 Laser Exposure ...
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Страница 207: ...Chapter 7 Image Formation ...
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Страница 257: ...Chapter 8 Pickup Feeding System ...
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Страница 321: ...Chapter 10 Externals and Controls ...
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Страница 359: ...Chapter 11 MEAP ...
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Страница 401: ...Chapter 12 RDS ...
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Страница 411: ...Chapter 13 Maintenance and Inspection ...
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Страница 421: ...Chapter 14 Standards and Adjustments ...
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Страница 431: ...Chapter 15 Correcting Faulty Images ...
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Страница 459: ...Chapter 16 Self Diagnosis ...
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Страница 481: ...Chapter 17 Service Mode ...
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Страница 571: ...Chapter 18 Upgrading ...
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Страница 603: ...Chapter 19 Service Tools ...
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Страница 605: ...Contents Contents 19 1 Service Tools 19 1 19 1 1 Special Tools 19 1 19 1 2 Solvents and Oils 19 2 ...
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