Contents
Contents
5.1 Construction ...................................................................................................................................................................5-1
5.1.1 Specifications, Control Mechanisms, and Functions................................................................................................................... 5-1
5.1.2 Major Components....................................................................................................................................................................... 5-1
5.1.3 Construction of the Control System............................................................................................................................................. 5-2
5.1.4 Reader Controller PCB ................................................................................................................................................................ 5-3
5.2 Basic Sequence ..............................................................................................................................................................5-4
5.2.1 Basic Sequence of Operation at Power-On.................................................................................................................................. 5-4
5.2.2 Basic Sequence of Operation in Response to a Press on the Start Key (book mode; 1 original) ................................................ 5-4
5.2.3 Basic Sequence of Operation in Response to a Press on the Start Key (ADF mode; 1 original ) ............................................... 5-5
5.3 Various Control..............................................................................................................................................................5-6
5.3.1 Controlling the Scanner Drive System ........................................................................................................................................ 5-6
5.3.1.1 Outline.............................................................................................................................................................................................................5-6
5.3.1.2 Controlling the Reader Motor .........................................................................................................................................................................5-6
5.3.2 Contact Image Sensor (CIS) ........................................................................................................................................................ 5-7
5.3.2.1 Outline.............................................................................................................................................................................................................5-7
5.3.2.2 Analog Control Inside the Contact Image Sensor...........................................................................................................................................5-8
5.3.3 Enlargement/Reduction................................................................................................................................................................ 5-9
5.3.3.1 Changing the Magnification in Main Scanning Direction ..............................................................................................................................5-9
5.3.3.2 Varying the Magnification in Sub Scanning Direction...................................................................................................................................5-9
5.3.4 Detecting the Size of Originals .................................................................................................................................................... 5-9
5.3.4.1 Outline.............................................................................................................................................................................................................5-9
5.3.4.2 Outline of Size Identification ........................................................................................................................................................................5-10
5.3.5 Dirt Sensor Control .................................................................................................................................................................... 5-11
5.3.5.1 Outline...........................................................................................................................................................................................................5-11
5.3.6 Image Processing ....................................................................................................................................................................... 5-13
5.3.6.1 Outline...........................................................................................................................................................................................................5-13
5.3.6.2 CCD Drive ....................................................................................................................................................................................................5-14
5.3.6.3 Gain Correction and Offset Correction of the CCD Output .........................................................................................................................5-14
5.3.6.4 A/D Conversion of the CCD Output.............................................................................................................................................................5-14
5.3.6.5 Shading Correction (outline).........................................................................................................................................................................5-14
5.3.6.6 Shading Adjustment ......................................................................................................................................................................................5-14
5.3.6.7 Shading Correction........................................................................................................................................................................................5-15
5.4 Parts Replacement Procedure.......................................................................................................................................5-15
5.4.1 Copyboard glass......................................................................................................................................................................... 5-15
5.4.1.1 Removing the Copyboard Glass....................................................................................................................................................................5-15
5.4.1.2 Removing the ADF Reading Glass ...............................................................................................................................................................5-15
5.4.2 Reader Controller PCB .............................................................................................................................................................. 5-15
5.4.2.1 Before Replacing the Reader Controller PCB ..............................................................................................................................................5-15
5.4.2.2 Removing the Reader Rear Cover.................................................................................................................................................................5-16
5.4.2.3 Removing the rear cover of the machine ......................................................................................................................................................5-16
5.4.2.4 Removing the flexible cable cover................................................................................................................................................................5-16
5.4.2.5 Removing the Copyboard Glass....................................................................................................................................................................5-16
5.4.2.6 Removing the Reader Controller PCB..........................................................................................................................................................5-17
5.4.2.7 After Replacing the Reader Controller PCB or After Initializing the RAM.................................................................................................5-18
5.4.3 Scanner Motor............................................................................................................................................................................ 5-19
5.4.3.1 Removing the Reader Rear Cover.................................................................................................................................................................5-19
5.4.3.2 Removing the Scanner Motor .......................................................................................................................................................................5-19
5.4.4 Contact sensor............................................................................................................................................................................ 5-19
5.4.4.1 Removing the Reader Front Cover ...............................................................................................................................................................5-19
5.4.4.2 Removing the Reader Rear Cover.................................................................................................................................................................5-20
5.4.4.3 Removing the Copyboard Glass....................................................................................................................................................................5-20
5.4.4.4 Removing the Contact Image Sensor (CIS) ..................................................................................................................................................5-21
5.4.4.5 After Replacement of the CIS .......................................................................................................................................................................5-21
Содержание iR3570 Series
Страница 1: ...Jan 17 2007 Service Manual iR4570 3570 2870 2270 Series...
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Страница 27: ...Chapter 1 Introduction...
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Страница 71: ...Chapter 2 Installation...
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Страница 147: ...Chapter 3 Basic Operation...
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Страница 155: ...Chapter 4 Main Controller...
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Страница 187: ...Chapter 5 Original Exposure System...
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Страница 217: ...Chapter 5 5 27 F 5 91...
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Страница 219: ...Chapter 6 Laser Exposure...
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Страница 231: ...Chapter 7 Image Formation...
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Страница 279: ...Chapter 7 7 43 F 7 241 2 Remove the screw 1 F 7 242 3 Detach the static eliminator 1 to the front F 7 243...
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Страница 281: ...Chapter 8 Pickup Feeding System...
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Страница 389: ...Chapter 9 Fixing System...
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Страница 421: ...Chapter 10 External and Controls...
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Страница 437: ...Chapter 10 10 11 F 10 12 2 Remove the check mark from SNMP Status Enabled...
Страница 438: ...Chapter 10 10 12 F 10 13...
Страница 440: ...Chapter 10 10 14 F 10 15...
Страница 475: ...Chapter 11 MEAP...
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Страница 481: ...Chapter 12 Maintenance and Inspection...
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Страница 509: ...Chapter 13 Standards and Adjustments...
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Страница 521: ...Chapter 14 Correcting Faulty Images...
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Страница 537: ...Chapter 14 14 9 43mm s b Z x i j B iR4570_395 s u A B FM2 0287...
Страница 538: ...Chapter 14 14 10...
Страница 539: ...Chapter 14 14 11...
Страница 585: ...Chapter 15 Self Diagnosis...
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Страница 623: ...Chapter 16 Service Mode...
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Страница 679: ...Chapter 17 Upgrading...
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Страница 693: ...Chapter 17 17 11 F 17 18 2 Click Start F 17 19 3 When the session has ended click OK...
Страница 698: ...Chapter 17 17 16 F 17 28 2 Click Start F 17 29 3 When the session has ended click OK...
Страница 710: ...Chapter 17 17 28 F 17 51 3 Click Start F 17 52 4 Click Save...
Страница 712: ...Chapter 17 17 30 F 17 55 2 Select the data to download F 17 56 3 Click Start...
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Страница 715: ...Chapter 18 Service Tools...
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Страница 717: ...Contents Contents 18 1 Service Tools 18 1 18 1 1 Special Tools 18 1 18 1 2 Oils and Solvents 18 1...
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Страница 721: ...Jan 17 2007...
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