Continued
3. Disassembly and Reassembly
3.1 Disassembly and Reassemblyons on Disassembly3-1
3.2 Maintenance Parts3-2
3.3 Replacing a Maintenance Parts3-3
3.3.1 Fuser Unit3-3
3.3.2 ADF Pick up unit and rubber pad 3-3
3.3.3 Pick up roller3-4
3.3.4 Transfer roller 3-4
3.3.5 Holder-Pad3-5
3.4 General Disassembly3-6
3.4.1 Cover3-6
3.4.2 ADF Board 3-8
3.4.3 Scan Assy3-9
3.4.4 Middle Cover 3-11
3.4.5 Main PBA 3-12
3.4.6 Fax board 3-12
3.4.7 SMPS board 3-13
3.4.8 Main Drive unit 3-13
3.4.9 HVPS board 3-14
3.4.10 LSU Unit 3-15
4. Alignment & Troubleshooting
4.1 Alignment and Adjustments4-1
4.1.1 Control panel overview4-1
4.1.2 Understanding The Status LED4-2
4.1.3 Menu Overview4-3
4.1.4 Tech Mode 4-20
4.1.5 Clearing Paper Jams 4-28
4.1.6 Abnormal Image Printing and Defective Roller 4-35
4.1.7 Error Message 4-37