DL manuals Canon All in One Printer imagePRESS C1 Service Manual Canon imagePRESS C1 Service Manual - page 278 Manual is about: imagePRESS C1 Series 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Page of 1265 Go Download Print this page Bookmark us 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............................................................................................................................................. 5-3 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 ....................................................................................... 5-4 5.3 Various Control Mechanisms.........................................................................................................................................5-6 5.3.1 Controlling the Scanner Drive System ........................................................................................................................................ 5-6 5.3.1.1 Overview .........................................................................................................................................................................................................5-6 5.3.1.2 Controlling the Scanner Motor........................................................................................................................................................................5-6 5.3.2 Enlargement/Reduction................................................................................................................................................................ 5-7 5.3.2.1 Changing the Magnification in Main Scanning Direction ..............................................................................................................................5-7 5.3.2.2 Changing the Magnification in Sub Scanning Direction ................................................................................................................................5-7 5.3.3 Controlling the Scanning Lamp ................................................................................................................................................... 5-7 5.3.3.1 Overview .........................................................................................................................................................................................................5-7 5.3.3.2 Scanning Lamp................................................................................................................................................................................................5-8 5.3.3.3 Turning On and Off the Scanning Lamp.........................................................................................................................................................5-8 5.3.4 Detecting the Size of Originals .................................................................................................................................................... 5-8 5.3.4.1 Identifying the Size of Originals .....................................................................................................................................................................5-8 5.3.4.2 Points of Measurement Used for Original Size Identification ........................................................................................................................5-8 5.3.4.3 Overview of Operation..................................................................................................................................................................................5-10 5.3.5 Dirt Sensor Control .................................................................................................................................................................... 5-11 5.3.5.1 Dust Detection Control at Stream Reading...................................................................................................................................................5-11 5.3.5.2 White Plate Dust Detection Control..............................................................................................................................................................5-12 5.3.6 Image Processing ....................................................................................................................................................................... 5-13 5.3.6.1 Overview .......................................................................................................................................................................................................5-13 5.3.6.2 CCD Drive ....................................................................................................................................................................................................5-14 5.3.6.3 CCD Gain Correction, Offset Correction......................................................................................................................................................5-15 5.3.6.4 CCD Output A/D Conversion .......................................................................................................................................................................5-15 5.3.6.5 Outline of Shading Correction ......................................................................................................................................................................5-15 5.3.6.6 Shading Adjustment ......................................................................................................................................................................................5-15 5.3.6.7 Shading Correction........................................................................................................................................................................................5-15 5.4 Parts Replacement Procedure.......................................................................................................................................5-16 5.4.1 DADF......................................................................................................................................................................................... 5-16 5.4.1.1 Removing the DADF (imagePRESS C1 Series/imagePRESS C7000 Series)..............................................................................................5-16 5.4.2 Copyboard Glass........................................................................................................................................................................ 5-16 5.4.2.1 Removing the Copyboard Glass (imagePRESS C1 Series/imagePRESS C7000 Series).............................................................................5-16 5.4.2.2 Scanner Parts Replacement Procedure (imagePRESS C1 Series/imagePRESS C7000 Series) ...................................................................5-16 5.4.3 Replacement of Standard White Plate ....................................................................................................................................... 5-16 5.4.3.1 Removing the Standard White Plate (imagePRESS C1 Series/imagePRESS C7000 Series) ......................................................................5-16 5.4.3.2 Scanner Parts Replacement Procedure (imagePRESS C1 Series/imagePRESS C7000 Series) ...................................................................5-17 5.4.4 Exposure Lamp .......................................................................................................................................................................... 5-17 5.4.4.1 Preparation for Removing the Scanner Lamp (imagePRESS C1 Series/imagePRESS C7000 Series) ........................................................5-17 5.4.4.2 Removing the Scanner Lamp (imagePRESS C1 Series) ..............................................................................................................................5-17 5.4.4.3 Removing the Scanner Lamp (imagePRESS C1 Series) ..............................................................................................................................5-19 5.4.4.4 Removing the Scanner Lamp (imagePRESS C7000 Series) ........................................................................................................................5-21 5.4.5 Reader Controller PCB .............................................................................................................................................................. 5-24 5.4.5.1 Preparation for Removing the Reader Controller PCB (imagePRESS C1 Series/imagePRESS C7000 Series) ..........................................5-24 5.4.5.2 Removing the Reader Controller PCB (imagePRESS C1 Series) ................................................................................................................5-24 5.4.5.3 Removing the Reader Controller PCB (imagePRESS C7000 Series) ..........................................................................................................5-25 5.4.5.4 Procedure after Replacement of the Reader Controller PCB (imagePRESS C1 Series/imagePRESS C7000 Series) .................................5-27 « ‹ Prev275276277278279280281Next › »