chapter 1 Precautions 1.1 Safety Warning ............................................................ 1.2 Caution for safety ......................................................... 1.2.1 Toxic material ......................................................... 1.2.2 Electric Shock and Fire Safety Precautions .................. 1.2.3 Handling Precautions ............................................. 1.2.4 Assembly / Disassembly Precautions ........................ 1.2.5 Disregarding this warning may cause bodily injury ......... 1.3 ESD Precautions ......................................................... chapter 2 Product specifications and descriptions 2.1 Speci cations ............................................................ 2-1 2.1.1 Product Overview ................................................... 2-1 2.1.2 Features by models ................................................ 2-2 2.1.3 Speci cations......................................................... 2-3 2.1.4 Model Comparison Table .......................................... 2-11 2.2 Product Description ...................................................... 2-12 2.2.1 Front View ............................................................ 2-12 2.2.2 Rear View ............................................................ 2-13 2.2.3 Paper Path ............................................................ 2-14 2.2.4 System layout ...................................................... 2-15 2.2.5 Hardware con guration .......................................... 2-22 2.2.6 Engine F/W Control Algorithm .................................... 2-41 2.2.7 S/W Descriptions ................................................... 2-44 chapter 3Disassembly and Reassembly 3.1 General precautions on disassembly ..............................3.2 Screws used in the Printer 3-1 3-2 3.3 Disassembly procedure ................................................ 3.3.1 Cover .................................................................. 3.3.2 Scanner Assy......................................................... 3.3.2.1 OPE board ...................................................... 3.3.2.2 CIS Unit ......................................................... 3.3.2.3 Scan Motor ...................................................... 3.3.2.4 Home Position Sensor ....................................... 3.3.3 DADF Unit SCX-563xFR 563xHR / 573xFW) ............ 3.3.3.1 DADF Pick up unit ............................................. 3.3.3.2 DADF board ................................................... 3.3.3.3 DADF Motor ................................................... 3.3.4 ADF Unit SCX-483xFR FD/HD)) .............................. 3.3.4.1 Tray Input ...................................................... 3.3.4.2 Front / Rear cover ............................................. 3.3.4.3 Paper Path Assy ............................................. 3.3.4.4 ADF Pick up unit ............................................. 3.3.4.5 ADF Motor ...................................................... 3.3.5 Middle Cover ......................................................... 3.3.6 Main board ............................................................ 3.3.7 HVPS board ......................................................... 3.3.8 SMPS board ......................................................... 3.3.9 Laser Scanning Unit (LSU) ....................................... 3.3.10 Fuser unit ............................................................ 3.3.11 Main drive unit ...................................................... 3.3.12 Feed drive unit...................................................... 3.3.13 Pick up/ Regi/ MP clutch ....................................... 3.3.14 Pick up roller ...................................................... 3.3.15 Transfer roller ...................................................... 3.3.16 MP unit ............................................................... 3.3.17 Bin-full sensor ...................................................... 3.3.18 Regi. / Feed / Empty sensor .................................... 3.3.19 Cassette roller (Retard roller) ................................. chapter 4 Alignment and Troubleshooting 4.1 Alignment and Adjustments ............................................. 4.1.1 Control Panel ......................................................... 4.1.2 Understanding The Status LED ................................. 4.1.3 JAM Removal ...................................................... 4.1.4 Useful menu item for service .................................... 4.1.5 Periodic Defective Image .......................................... 4.1.6 Using the Easy Printer Manager program and smart panel ... 4.1.7 Updating Firmware ................................................ 4.1.8 Tech Mode ............................................................ 4.2 Troubleshooting............................................................ 4.2.1 Procedure of Checking the Symptoms ........................ 4.2.2 Error Message and Troubleshooting ........................... 4.2.3 Image Quality problem ............................................. 4.2.4 Other errors ......................................................... 4.2.5 Network problems ................................................... chapter 5System Diagram 5.1 Block Diagram ............................................................ 5-1 5.2 Connection Diagram...................................................... 5-3 chapter 6Reference Information 6.1 Tool for Troubleshooting ................................................ 6.2 Acronyms and Abbreviations .......................................... 6.3 A4 ISO 19752 Standard Pattern ....................................... 6.4 Selecting a location ...................................................... attached Parts Catalog (Exploded Views & Parts List)