Canon iR C3200 Series Service Manual page 9

Chapter 3 Basic Operation
3.1 Construction ...................................................................................................................................................... 3-1
3.1.1 Functional Construction ............................................................................................................................. 3-1
3.1.2 Arrangement of Major PCBs ...................................................................................................................... 3-2
3.2 Basic Sequence .................................................................................................................................................. 3-5
3.2.1 Basic Sequence of Operations at Power-On ............................................................................................... 3-5
3.2.2 Basic Sequence of Operations .................................................................................................................... 3-7
Chapter 4 Basic Operations (As a Printer)
4.1 Construction ...................................................................................................................................................... 4-1
4.1.1 Functional Construction ............................................................................................................................. 4-1
4.2 Construction of the Electrical Circuitry ............................................................................................................ 4-2
4.2.1 Arrangement of Major PCBs ...................................................................................................................... 4-2
4.2.2 DC Controller PCB .................................................................................................................................... 4-4
4.3 Basic Sequence .................................................................................................................................................. 4-5
4.3.1 Basic Sequence of Operations at Power-On ............................................................................................... 4-5
4.3.2 Basic Sequence of Operations .................................................................................................................... 4-7
Chapter 5 Main Controller
5.1 Construction ...................................................................................................................................................... 5-1
5.1.1 Outline ........................................................................................................................................................ 5-1
5.1.2 Functional Construction ............................................................................................................................. 5-2
5.2 Construction of the Electrical Circuitry ............................................................................................................ 5-3
5.2.1 Outline ........................................................................................................................................................ 5-3
5.2.2 Main Controller PCB .................................................................................................................................. 5-3
5.2.3 SRAM board ............................................................................................................................................... 5-4
5.2.4 HDD ........................................................................................................................................................... 5-4
5.2.5 Composition of the System Software ......................................................................................................... 5-5
5.3 Start-Up Sequence ............................................................................................................................................. 5-7
5.3.1 Outline ........................................................................................................................................................ 5-7
5.3.2 Startup Sequence ........................................................................................................................................ 5-7
5.4 Actions when HDD Error .................................................................................................................................. 5-9
5.4.1 E602 in Detail ............................................................................................................................................. 5-9
5.5 Image Processing ............................................................................................................................................. 5-14
5.5.1 Flow of Images ......................................................................................................................................... 5-14
5.5.2 Construction of the Image Processing Module ........................................................................................ 5-15
5.5.3 Reader Input Image Processing ................................................................................................................ 5-16
5.5.4 Compression/Decompression and Edit Processing Black ........................................................................ 5-17
5.5.5 Printer Output Image Processing .............................................................................................................. 5-18
5.6 Flow of Image Data ......................................................................................................................................... 5-19
5.6.1 Flow of Image Data for Copier Functions ................................................................................................ 5-19
5.6.2 Flow of Image Data for Box Functions .................................................................................................... 5-20
5.6.3 Flow of Image data for SEND function ................................................................................................... 5-21
5.6.4 Flow of Image Data for Fax Transmission Functions .............................................................................. 5-22
5.6.5 Flow of Image Data for Fax Reception Functions ................................................................................... 5-23
5.6.6 Flow of Image Data for PDL Functions ................................................................................................... 5-24
5.7 Parts Replacement Procedure .......................................................................................................................... 5-25
5.7.1 Main Controller PCB (main) .................................................................................................................... 5-25
5.7.1.1 Removing the Upper Rear Cover ...................................................................................................... 5-25
5.7.1.2 Removing the Left Upper Rear Cover ............................................................................................... 5-25
5.7.1.3 Removing the DC Controller PCB Cover ......................................................................................... 5-25
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