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Service Manual for OF5800
1 General Description
1.1 Product Description 1
1.2 Specification and Ratings 2
1.3 Features and Functions 3
1.4 Reports 4
1.5 Scanner Specifications 5
1.6 Printer Specifications 6
1.7 Memory Specifications 7
1.8 Supply Yields 8
2 Machine Operations
2.1 Interconnect Block Diagram 9
2.2 Main Control PCB 10
2.3 Network Control Unit (NCU) PCB 11
2.4 Power Supply Unit (PSU) 12
2.5 CCD Mount PCB 13
2.6 Sensors 14
....2.6.1 Sensor Locations 15
....2.6.2 Sensor Descriptions 16
2.7 Unit Assembly 17
2.8 Document Scanning Sequence 18
....2.8.1 Document Detection 19
....2.8.2 Document Separation 20
....2.8.3. Document Transport 21
....2.8.4 Document Scanning 22
....2.8.5 Document Discharge 23
2.9 Recording Section 24
2.10 Image Processing 25
....2.10.1 Drum Charge 26
....2.10.2 Laser Exposure 27
....2.10.3 Development 28
2.10.4 Image Transfer 29
2.10.5 Fusing 30
....2.10.5.1 An Overview 31
....2.10.5.2 Fusing Temperature Control Circuit 32
2.10.6 Timing Chart 33
....2.10.6.1 Print Starting 34
2.10.6.2 Print Ending 35
2.11 Transmission Control Procedure (G3 mode) 36
2.12 Transmission Control Procedure (G3 mode, polling) 37
2.13 Transmission Control Procedure (G3, ECM Mode) 38
3 Adjustment Procedures
3.1 Field Service Program Modes 39