Canon iR2016 Series, Руководство по обслуживанию

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Contents
Contents
3.1 Construction ...................................................................................................................................................................3-1
3.1.1 Construction and Mechanisms ..................................................................................................................................................... 3-1
3.1.2 Construction and Mechanisms ..................................................................................................................................................... 3-1
3.2 Construction of the Electrical Circuitry .........................................................................................................................3-2
3.2.1 Image Processor PCB .................................................................................................................................................................. 3-2
3.3 Image Processing ...........................................................................................................................................................3-3
3.3.1 Overview of the Image Flow ....................................................................................................................................................... 3-3
3.3.2 Construction of the Image Processing Module............................................................................................................................ 3-3
3.3.3 Reader Unit Input Image Processing ........................................................................................................................................... 3-4
3.3.4 Compressio/ Extesion/ Editing Block......................................................................................................................................... 3-4
3.3.5 Compressio/ Extesion/ Editing Block......................................................................................................................................... 3-5
3.3.6 Printer unit Output Image Processing .......................................................................................................................................... 3-5
3.4 Flow of Image Data........................................................................................................................................................3-6
3.4.1 Flow of Image Data According to Copy Functions ..................................................................................................................... 3-6
3.4.2 Flow of Image Data for the SEND Function ............................................................................................................................... 3-6
3.4.3 Flow of Image Data for the Fax Transmission ............................................................................................................................ 3-7
3.4.4 Flow of Image Data for the Fax Reception Function .................................................................................................................. 3-7
3.4.5 Flow of Image Data for the PDL Function .................................................................................................................................. 3-8
3.5 Parts Replacement Procedure.........................................................................................................................................3-9
3.5.1 Main Controller PCB ................................................................................................................................................................... 3-9
3.5.1.1 Removing the Rear Cover...............................................................................................................................................................................3-9
3.5.1.2 Removing the Left Cover (Rear).....................................................................................................................................................................3-9
3.5.1.3 Removing the RAM Cover .............................................................................................................................................................................3-9
3.5.1.4 Removing the SDRAM ...................................................................................................................................................................................3-9
3.5.1.5 Removing the LAN Cover ..............................................................................................................................................................................3-9
3.5.1.6 Removing the IP Cover...................................................................................................................................................................................3-9
3.5.1.7 Removing the IP Cover.................................................................................................................................................................................3-10
3.5.1.8 Removing the image processor PCB.............................................................................................................................................................3-11
3.5.1.9 Procedure after Replacing the Image Processor PCB (iR2020/iR2020J/iR2016/iR2016J)..........................................................................3-11
3.5.1.10 Procedure after Replacing the Image Processor PCB (iR2020i/iR2016i) ..................................................................................................3-11
3.5.2 SDRAM ..................................................................................................................................................................................... 3-12
3.5.2.1 Removing the Rear Cover.............................................................................................................................................................................3-12
3.5.2.2 Removing the RAM Cover ...........................................................................................................................................................................3-12
3.5.2.3 Removing the SDRAM .................................................................................................................................................................................3-12