2004 Brother MFC-7420/7820N & DCP-7010/7020/7025 Service Manual
This service manual provides detailed specifications, construction, and maintenance for Brother machines. It includes troubleshooting, disassembly, reassembly, and lubrication information for optimal equipment repair and upkeep.
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Sample pages from the 2004 Brother MFC-7420/7820N & DCP-7010/7020/7025 Service Manual manual
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Models Covered & Key Technical Specifications
Brother MFC-7420/7820N & DCP-7010/7020/7025 Service Manual: Brother MFC-7420/7820N & DCP-7010/7020/7025 - Comprehensive Service and Repair Manual
Technical reference for MFC-7420/7820N & DCP-7010/7020/7025 including variants. Documents maintenance procedures and component functions. PN C4077-90960
- Comprehensive Specifications: Includes memory capacity of 16 MB (MFC-7420) / 32 MB (MFC-7820N) for efficient operation.
- Structured Paper Handling: Supports up to 35 sheets in the ADF, with a paper tray capacity of 250 sheets for varied print jobs.
- Manufacturer Print Method: Utilizes electrophotography by semiconductor laser beam scanning for high-quality output.
- Unit Power Source: Operates on 100 to 120V AC 50/60Hz, ensuring broad compatibility.
- Established Operating Temperature: Maintains optimal performance within a 10 to 32.5°C range Standards.
- System Dimensions: Features dimensions of 432mm x 395mm x 294mm (without carton) Logic.
Professional Workshop Service Manual & Technical Specifications
Brother MFC-7420/7820N & DCP-7010/7020/7025 Service Manual: Brother MFC-7420/7820N & DCP-7010/7020/7025 - Comprehensive Service and Repair Manual Wiring-Compendium
Documentation-Type: Service Manual // Application-Range: MFC-7420/7820N, DCP-7010/7020/7025 // Documentation-Type: Repair Manual
Technical Specifications
| Component | Value | Calibration-Standards |
|---|---|---|
| Memory Capacity | 16 MB (MFC-7420), 32 MB (MFC-7820N) | N/A |
| ADF Capacity | Up to 35 sheets | N/A |
| Paper Tray Capacity | 250 Sheets | N/A |
| Power Source | 100 to 120V AC 50/60Hz | N/A |
| Operating Temperature | 10 to 32.5°C | N/A |
| Dimensions (W x D x H) | 432mm x 395mm x 294mm | N/A |
Table of Contents Summary
- Chapter 5: Disassembly/Reassembly and Lubrication
- Chapter 2: Specifications
- Chapter 4: Transfer of Data Left in the Machine to be Sent for Repair
- Chapter 9: Error Indication and Troubleshooting
- Chapter 6: Adjustments and Updating of Settings Required After Parts Replacement
Wiring diagrams are provided for understanding the connections between PCBs. This manual details procedures for disassembling and reassembling the machine, covering screw tightening torques and lubrication points. It also provides information on maintenance modes, including EEPROM parameter initialization and scanner calibration.
Theory of Operation
This section details the scanning and printing mechanisms, sensors, actuators, and control electronics, aiding in understanding basic operation and locating defects.
Maintenance Procedures
Includes procedures for entering maintenance mode, performing operational checks, and customizing settings via EEPROM. This section guides users through various diagnostic and adjustment functions.
Troubleshooting Guidance
Provides information on error messages, codes, and common problems to help pinpoint and repair defective components. It covers paper feeding, software settings, and image defects.
Documents torque specifications for ensuring proper thermal expansion compensation.
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