Oki OF5800 Service Guide - Page 2

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

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Table of Contents
Page
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