Panasonic KX-P7100, Service Manual

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1 Introduction 4
1.1. Specifications 4
1.2. Indicators 9
1.3. Parts Identification 11
1.4. Component Layout and Paper Path 12
1.5. Electrical Components and Sensor Boards 13
1.6. Switches and Solenoids 14
1.7. Print Process 15
1.8. Paper Feed 17
1.9. Laser Scan Unit ( Exposure ) 18
1.10. Fuser Unit 20
1.11. Paper Ejection and Paper Switchback 21
2 Installation, Setup, and Repacking 22
2.1. Installation Requirements 22
2.2. Setup 22
2.3. Repacking 24
3 Removal and Replacement Procedures 27
3.1. Front and Rear Covers 27
3.2. Right, Left and Top Covers 29
3.3. Laser Scanning Unit ( LSU ) 30
3.4. Relay Board (B) 30
3.5. High Voltage Board and Power Supply Unit 31
3.6. Indicator Board and Toner Empty Sensor Board 33
3.7. Main Controller Board and Fuser Drive Gear 33
3.8. Fan Motor 34
3.9. Gear Support Bracket, Motor and Drive Gear Unit 35
3.10. Upper Exit Roller Holder 37
3.11. Fuser Unit 38
3.12. Pickup, Paper Feed, Registration and Transfer Rollers 42
3.13. Transfer Roller Assembly 44
3.14. Auto Duplex Unit, ADU Registration Roller and ADU Pinch
Roller 45
3.15. Registration Sensor, Paper Top Detection Sensor and
Registration & Paper Top Detection Sensor Board 47
4 Electronic Circuit Description and Diagrams 49
4.1. Block Diagram 49
4.2. Connection Diagram 50
4.3. Power Supply 51
4.4. Main Control Board 52
4.5. Timing Chart 71
5 Schematic Diagram 73
5.1. Main Control Board 73
5.2. Sensors, Indicator and Relay Boards 79
6 Explanation of Connectors 81
6.1. Main Board 81
6.2. Registration & Paper Top Sensor Board 86
6.3. Paper Exit / ADU Paper Jam Sensor Board 86
6.4. Indicator Board 86
6.5. Relay Board ( B ) 86
6.6. Toner Empty Sensor Board 87
7 Component Reference Guide 88
7.1. IC1 ( Main Control CPU ) 88
7.2. IC2 ( Inverters ) 88
7.3. IC3 ( GDI ASIC ) 89
7.4. IC5 ( DRAM ) 90
7.5. IC6 ( ASIC ) 91
7.6. IC8 ( USB Chip ) 92
7.7. IC9 ( Comparators ) 92
7.8. IC10 ( Reset IC ) 92
7.9. IC11 ( Engine Control CPU ) 93
7.10. IC12 ( EEPROM ) 93
7.11. IC14 ( Motor driver IC ) 94
7.12. IC15 ( Inverters ) 94
8 Preventative Maintenance 95
8.1. General 95
8.2. Recommended Tools 95
8.3. Recommended Cleaning 95
8.4. Maintenance Tables 95
9 Troubleshooting 98
9.1. Self-Diagnostic Indicators 98
9.2. Initial Troubleshooting Flowchart 101
9.3. No Operation 102
9.4. Print Quality 103
9.5. Paper Jam 113
9.6. Call Service 118
10 Replacement Parts List with Lubrication Guide 126
10.1. Exterior 126
10.2. Right Side Parts 128
10.3. Left Side Parts ( Power Supply Unit and High Voltage
Board ) 132
10.4. Rear and Top Side Parts 133
10.5. Bottom Side Parts 136
10.6. Mechanical Base 138
10.7. Media Tray ( Paper Cassette ) 139
10.8. Packing 140
10.9. Main Control Board 141
10.10. Registration & Paper Top Detection Sensor Board 147
10.11. Paper Exit / ADU Paper Jam Sensor Board 147
10.12. Indicator Board 147
10.13. Toner Empty Sensor Board 148
10.14. Relay Board (A) 148
10.15. Relay Board (B) 148
11 Schematic Diagram for printing with A4 size 149
11.1. Main Control Board 149
11.2. Sensors, Indicator and Relay Boards 162
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KX-P7100