Canon Color imageCLASS MF9170c Service Manual page 62

Contents
3.1 Overview/Configuration ................................................................................................................................................ 3-1
3.1.1 Overview ...................................................................................................................................................................................... 3-1
3.1.2 Configurations/functions.............................................................................................................................................................. 3-2
3.2 Set-Up Sequence............................................................................................................................................................ 3-4
3.2.1 Overview ...................................................................................................................................................................................... 3-4
3.2.2 Startup Sequence .......................................................................................................................................................................... 3-5
3.3 Image Processing ........................................................................................................................................................... 3-6
3.3.1 Overview of the Image Flow........................................................................................................................................................ 3-6
3.3.2 Construction of the Image Processing Module ............................................................................................................................ 3-6
3.3.3 Reader Unit Input Image Processing............................................................................................................................................ 3-7
3.3.4 Compression/ Extesion/ Editing Block ........................................................................................................................................ 3-7
3.3.5 Printer unit Output Image Processing .......................................................................................................................................... 3-8
3.4 Image Data Flow............................................................................................................................................................ 3-9
3.4.1 Flow of Image Data According to Copy Functions ..................................................................................................................... 3-9
3.4.2 Flow of Image Data for the SEND Function.............................................................................................................................. 3-10
3.4.3 Flow of Image Data for the Fax Transmission........................................................................................................................... 3-10
3.4.4 Flow of Image Data for the Fax Reception Function................................................................................................................. 3-11
3.4.5 Flow of Image Data for the PDL Function ................................................................................................................................ 3-11
3.5 Parts Replacement Procedure ...................................................................................................................................... 3-12
3.5.1 Main Controller PCB ................................................................................................................................................................. 3-12
3.5.1.1 Before Removing the Main Controller PCB................................................................................................................................................. 3-12
3.5.1.2 Removing the Main Controller PCB............................................................................................................................................................. 3-12
3.5.1.3 Procedure after Replacing the Main Controller PCB.................................................................................................................................... 3-12
Contents