Canon ImageRunner iR8500 Series Service Manual page 11

4.3.6 Construction of the System Software(iR105) ........................................................................................................ 4- 11
4.3.7 E602 in Detaill ....................................................................................................................................................... 4- 11
4.4 Shut-Down Sequence...............................................................................................................................4- 17
4.4.1 Overview................................................................................................................................................................ 4- 17
4.4.2 Flow of Operation .................................................................................................................................................. 4- 17
4.5 Image Processing .....................................................................................................................................4- 18
4.5.1 Outline(iR105) ....................................................................................................................................................... 4- 18
4.5.2 Overview of the Image Flow .................................................................................................................................. 4- 18
4.5.3 Input Image Processing(iR105) ............................................................................................................................. 4- 19
4.5.4 Construction of the Image Processing Module...................................................................................................... 4- 19
4.5.5 Construction of the Image Processing Module...................................................................................................... 4- 20
4.5.6 Controlling the Image Memory(iR105)................................................................................................................... 4- 21
4.5.7 Reader Unit Input Image Processing..................................................................................................................... 4- 21
4.5.8 Output Image Processing(iR105) .......................................................................................................................... 4- 21
4.5.9 Compression/Extension/Editing Block................................................................................................................... 4- 22
4.5.10 Compression/Extension/Editing Block ................................................................................................................. 4- 22
4.5.11 Printer unit Output Image Processing.................................................................................................................. 4- 22
4.6 Flow of Image Data ..................................................................................................................................4- 24
4.6.1 Flow of Image Data for the Copy Function ............................................................................................................ 4- 24
4.6.2 Flow of Image Data for the Box Function .............................................................................................................. 4- 24
4.6.3 Flow of Image Data for the SEND Function .......................................................................................................... 4- 25
4.6.4 Flow of Image Data for the PDL Function ............................................................................................................. 4- 25
4.7 Parts Replacement Procedure .................................................................................................................4- 26
4.7.1 Main Controller Box ............................................................................................................................................... 4- 26
4.7.1.1 Removing the Rear Cover ..................................................................................................................................................... 4- 26
4.7.1.2 Removing the Rear Cover ..................................................................................................................................................... 4- 26
4.7.1.3 Removing the Rear Cover ..................................................................................................................................................... 4- 26
4.7.1.4 Removing the System Connector Cover................................................................................................................................ 4- 26
4.7.1.5 Removing the Main Controller Box ........................................................................................................................................ 4- 26
4.7.2 Main Controller PCB.............................................................................................................................................. 4- 27
4.7.2.1 Removing the Rear Cover ..................................................................................................................................................... 4- 27
4.7.2.2 Removing the Rear Cover ..................................................................................................................................................... 4- 27
4.7.2.3 Removing the Rear Cover ..................................................................................................................................................... 4- 27
4.7.2.4 Removing the Main Controller Box Cover.............................................................................................................................. 4- 28
4.7.2.5 Removing the Differential PCB/Differential PCB Relay Board............................................................................................... 4- 28
4.7.2.6 Removing the Pixel/Line Conversion PCB............................................................................................................................. 4- 28
4.7.2.7 Removing the Main Controller PCB ....................................................................................................................................... 4- 28
4.7.2.8 When Replacing the Main Controller PCB............................................................................................................................. 4- 29
4.7.3 Boot ROM.............................................................................................................................................................. 4- 29
4.7.3.1 Removing the Rear Cover ..................................................................................................................................................... 4- 29
4.7.3.2 Removing the Rear Cover ..................................................................................................................................................... 4- 29
4.7.3.3 Removing the Rear Cover ..................................................................................................................................................... 4- 30
4.7.3.4 Removing the Main Controller Box Cover.............................................................................................................................. 4- 30
4.7.3.5 Removing the Boot ROM ....................................................................................................................................................... 4- 30
4.7.4 Differential PCB ..................................................................................................................................................... 4- 30
4.7.4.1 Removing the Rear Cover ..................................................................................................................................................... 4- 30
4.7.4.2 Removing the Rear Cover ..................................................................................................................................................... 4- 31
4.7.4.3 Removing the Main Controller Box Cover.............................................................................................................................. 4- 31
4.7.4.4 Removing the Differential PCB/Differential PCB Relay Board............................................................................................... 4- 31
4.7.5 HDD....................................................................................................................................................................... 4- 31
4.7.5.1 Points to Note on Handling the Hard Disk ............................................................................................................................. 4- 31
4.7.5.2 Removing the Rear Cover ..................................................................................................................................................... 4- 32
4.7.5.3 Removing the Rear Cover ..................................................................................................................................................... 4- 32
4.7.5.4 Removing the Rear Cover ..................................................................................................................................................... 4- 32
4.7.5.5 Removing the Main Controller Box Cover.............................................................................................................................. 4- 32
4.7.5.6 Removing the Differential PCB/Differential PCB Relay Board............................................................................................... 4- 32
4.7.5.7 Removing the Hard Disk ........................................................................................................................................................ 4- 33
4.7.5.8 Points to Note on Attaching the Hard Disk............................................................................................................................. 4- 33
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