Canon iR C1020 Series Service Manual page 83

Contents
4.1 Overview/Configuration ................................................................................................................................................4-1
4.1.1 Overview...................................................................................................................................................................................... 4-1
4.1.2 Configurations/functions.............................................................................................................................................................. 4-2
4.2 Set-Up Sequence ............................................................................................................................................................4-4
4.2.1 Overview...................................................................................................................................................................................... 4-4
4.2.2 Startup Sequence.......................................................................................................................................................................... 4-5
4.3 Image Processing ...........................................................................................................................................................4-6
4.3.1 Overview of the Image Flow ....................................................................................................................................................... 4-6
4.3.2 Construction of the Image Processing Module ............................................................................................................................ 4-6
4.3.3 Reader Unit Input Image Processing ........................................................................................................................................... 4-7
4.3.4 Compression/ Extesion/ Editing Block ........................................................................................................................................ 4-7
4.3.5 Printer unit Output Image Processing .......................................................................................................................................... 4-8
4.4 Image Data Flow ............................................................................................................................................................4-9
4.4.1 Flow of Image Data According to Copy Functions ..................................................................................................................... 4-9
4.4.2 Flow of Image Data for the SEND Function ............................................................................................................................. 4-10
4.4.3 Flow of Image Data for the Fax Transmission .......................................................................................................................... 4-10
4.4.4 Flow of Image Data for the Fax Reception Function ................................................................................................................ 4-11
4.4.5 Flow of Image Data for the PDL Function ................................................................................................................................ 4-11
4.5 Parts Replacement Procedure.......................................................................................................................................4-12
4.5.1 Main Controller PCB ................................................................................................................................................................. 4-12
4.5.1.1 Before Removing the Main Controller PCB.................................................................................................................................................4-12
4.5.1.2 Removing the Main Controller PCB.............................................................................................................................................................4-12
4.5.1.3 Procedure after Replacing the Main Controller PCB....................................................................................................................................4-12
Contents