Samsung ML-4551NDR - Page 3

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3.2.6 Print Cartridge 3-10
3.3 Engine H/W Specifications
3-11
3.3.1 ML-4550 (PCL) Main Board
3-11
3.3.2 SMPS & HVPS board
3-16
3.3.3 Engine F/W
3-20
4. Alignment and Adjustments
4.1 How to use EDC (Engine Diagnostic Control) Mode 4-1
4.1.1 EDC Setup
4-1
4.1.2 Entrance method for EDC
4-1
4.1.3 Cover Status
4-2
4.1.4 Sensor Status
4-3
4.1.5 Motor Test
4-5
4.1.6 Fan Test
4-5
4.1.7 Clutch / Sol
4-6
4.1.8 Fuser Ctrl
4-7
4.1.9 LSU
4-7
4.1.10 Deve Control
4-8
4.1.11 Print Test and Option version
4-9
4.2 Paper Path
4-10
4.2.1 Clearing Paper Jams
4-12
4.3 Sample Pattern
4-17
4.3.1 Information Pages
4-17
4.3.2 Demo Pages
4-17
4.4 Periodic Defective Image
4-18
4.5 Error Messages
4-19
5. Disassembly and Reassembly
5.1 General Precautions on Disassembly 5-1
5.2 Transfer Roller
5-2
5.3 MPF Ass’y
5-3
5.4 Holder Pad Ass'y
5-4
5.5 Retard Ass'y
5-5
5.6 Feed2 Idle Unit
5-6
5.7 Cover Right
5-7