Contents
7.3.4Sequence of Operation (copying) ................................................................................................................7- 8
7.3.5Sequence of Operation (last rotation) ..........................................................................................................7- 8
7.3.6Sequence of Operation (last rotation) ..........................................................................................................7- 9
7.4 Image Stabilization Control.............................................................................................................................7- 10
7.4.1Overview....................................................................................................................................................7- 10
7.4.2APVC Control ...........................................................................................................................................7- 10
7.4.3ATVC Control ...........................................................................................................................................7- 11
7.5 Drum Unit........................................................................................................................................................7- 12
7.5.1 Charging Mechanism ................................................................................................................................7- 12
7.5.1.1 Controlling the Primary Charging Bias .............................................................................................7- 12
7.5.1.2 Primary Charging Roller Cleaning Mechanism................................................................................. 7- 12
7.6 Drum Cleaner Unit ..........................................................................................................................................7- 14
7.6.1Photosensitive Drum Cleaning ..................................................................................................................7- 14
7.7 Developing Unit...............................................................................................................................................7- 15
7.7.1Controlling the Developing Bias ...............................................................................................................7- 15
7.8 Toner Container ...............................................................................................................................................7- 16
7.8.1Overview....................................................................................................................................................7- 16
7.8.2Route of Toner Supply...............................................................................................................................7- 17
7.8.3Controlling the Drive of the Toner Cartridge ............................................................................................7- 18
7.8.4Toner Supply Control ................................................................................................................................7- 19
7.8.5Recovery Sequence....................................................................................................................................7- 19
7.8.6Toner Level Detection ...............................................................................................................................7- 20
7.9 Transfer Unit....................................................................................................................................................7- 21
7.9.1 Outline of the Transfer Unit ......................................................................................................................7- 21
7.9.1.1 Outline ...............................................................................................................................................7- 21
7.9.2 Controlling the Transfer Bias ....................................................................................................................7- 21
7.9.2.1 Transfer Roller Bias Control..............................................................................................................7- 21
7.9.3 Cleaning ....................................................................................................................................................7- 22
7.9.3.1 Transfer Roller Cleaning Mechanism................................................................................................7- 22
7.9.4 Separation Mechanism .............................................................................................................................. 7- 22
7.9.4.1 Controlling the Static Eliminator Bias............................................................................................... 7- 22
7.10 Transfer Mechanism ......................................................................................................................................7- 23
7.10.1 Transfer Guide Bias ................................................................................................................................7- 23
7.10.1.1 Transfer Guide Bias Control............................................................................................................7- 23
7.11 Photosensitive Drum Cleaning ......................................................................................................................7- 24
7.11.1Outline .....................................................................................................................................................7- 24
7.11.2Collection of Waste Toner.......................................................................................................................7- 24
7.11.3Checking the Waste Toner Box...............................................................................................................7- 24
7.12 Parts Replacement Procedure ........................................................................................................................7- 26
7.12.1 Pre-Exposure Lamp.................................................................................................................................7- 26
7.12.1.1 Removing the Front Cover Unit ......................................................................................................7- 26
7.12.1.2 Removing the Waste Toner Case.....................................................................................................7- 26
7.12.1.3 Removing the Toner Cartridge ........................................................................................................7- 26
7.12.1.4 Removing the Drum Unit ................................................................................................................ 7- 27
7.12.1.5 Removing the Developing Assembly ..............................................................................................7- 28
7.12.1.6 Removing the Upper Tray ...............................................................................................................7- 30
7.12.1.7 Removing the Toner Cartridge Cover .............................................................................................7- 30
7.12.1.8 Removing the Pre-Exposure Lamp..................................................................................................7- 30
7.12.2 Drum Unit ...............................................................................................................................................7- 31
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Summary of Contents for iR4570 Series
Page 2: ...Download Free Service Manual And Resetter Printer at http printer1 blogspot com ...
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Page 81: ...Chapter 2 Installation ...
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Page 106: ...system setup network Ethernet driver setup auto detect ...
Page 126: ...F 2 94 3 2 3 1 ...
Page 127: ...Chapter 3 Basic Operation ...
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Page 137: ...Chapter 4 Main Controller ...
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Page 165: ...Chapter 5 Original Exposure System ...
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Page 213: ...Chapter 6 Laser Exposure ...
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Page 231: ...Chapter 7 Image Formation ...
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Page 249: ...F 7 13 1 2 3 4 ...
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Page 309: ...Chapter 8 Pickup Feeding System ...
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Page 465: ...Chapter 9 Fixing System ...
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Page 501: ...Chapter 10 External and Controls ...
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Page 565: ...Chapter 11 MEAP ...
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Page 573: ...Chapter 12 Maintenance and Inspection ...
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Page 613: ...Chapter 13 Standards and Adjustments ...
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Page 635: ...Chapter 14 Correcting Faulty Images ...
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Page 675: ...T 14 22 Notation Description VR201 for factory use ...
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Page 677: ...Chapter 15 Self Diagnosis ...
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Page 757: ...Chapter 16 Service Mode ...
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Page 760: ...Contents 16 8 1 COPIER 16 102 16 8 1 1 Copier List 16 102 ...
Page 869: ...Chapter 17 Service Tools ...
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Page 871: ...Contents Contents 17 1 Special Tools 17 1 17 2 Oils and Solvents 17 2 ...
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Page 875: ...Oct 8 2004 ...
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