Brother MFC4820C Service Manual
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Also See for MFC4820C:
- User manual (361 pages) ,
- Service manual (268 pages) ,
- Quick setup manual (28 pages)
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Summary of Contents for Brother MFC4820C
- Page 1 FACSIMILE EQUIPMENT SERVICE MANUAL MODEL: MFC4820C/MFC4420C...
- Page 2 PREFACE This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother facsimile equipment. It includes information required for field troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel will be able to understand equipment function, to rapidly repair the equipment and order any necessary spare parts.
- Page 3 CHAPTER 4 THEORY OF OPERATION CONTENTS OVERVIEW ........................4-1 MECHANISMS .........................4-2 4.2.1 Document Scanner Mechanism ................4-4 4.2.2 Paper Feeding Mechanism ..................4-6 4.2.2.1 Auto Sheet Feeder (ASF) mechanism ............4-7 4.2.2.2 Paper feeding and ejection mechanism............4-9 4.2.3 Printing mechanism....................4-11 4.2.3.1 Ink supply and ink jet mechanism ..............4-12 4.2.3.2 Head cap mechanism ................4-21 4.2.3.3...
- Page 4 CHAPTER 6 DISASSEMBLY/REASSEMBLY CONTENTS DISASSEMBLY/REASSEMBLY ..................6-1 Safety Precautions.......................6-1 Tightening Torques......................6-2 Preparation ........................6-3 How to Access the Object Component ................6-3 Disassembly Flowchart....................6-4 6.1.1 Draining the Ink from the Ink Tubes --This must be performed before removing the print head unit or engine unit-- ..6-5 6.1.2 Print Head Unit .....................6-6 6.1.3...
- Page 5 6.1 DISASSEMBLY/REASSEMBLY Safety Precautions To prevent the creation of secondary problems through mishandling, observe the following precautions for maintenance work. (1) Unplug the power cord from the power outlet before replacing parts or units. When accessing to the power-related sections, be sure to unplug the power cord from the power outlet. (2) Be careful not to lose screws, washers or any other parts removed for parts replacement.
- Page 6 CHAPTER 8 ERROR INDICATION AND TROUBLESHOOTING CONTENTS ERROR INDICATION.......................8-1 8.1.1 Equipment Errors ....................8-1 [ 1 ] Error messages on the LCD ................8-1 [ 2 ] Error codes shown in the "MACHINE ERROR X X " message....8-3 8.1.2 Communications Errors..................8-7 TROUBLESHOOTING ....................8-13 8.2.1 Introduction......................8-13 8.2.2...
- Page 7 Brother MFC-4420C MFC-4820C service manual Brother MFC-4420C MFC-4820C service manual Brother MFC-4420C MFC-4820C service manual Brother MFC-4420C MFC-4820C service manual Brother MFC-4420C MFC-4820C service manual Brother MFC-4420C MFC-4820C service manual Brother MFC-4420C MFC-4820C service manual Brother MFC-4420C MFC-4820C service manual...