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