Brother DCP-J4120DW Service Manual
Inkjet dcp/mfc
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Also See for DCP-J4120DW:
- Basic user's manual (56 pages) ,
- Product safety manual (21 pages) ,
- Manual (13 pages)
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Table of Contents
Related Manuals for Brother DCP-J4120DW
Summary of Contents for Brother DCP-J4120DW
- Page 1 Brother Inkjet DCP/MFC SERVICE MANUAL MODELS: DCP-J4120DW MFC-J4320DW/J4420DW MFC-J4520DW MFC-J4620DW/J4625DW Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times. April 2014 SM-FAX156 8CAU* Confidential...
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Page 2: Open Source Licensing Remarks
Each company whose software title is mentioned in this manual has a Software License Agreement specific to its proprietary programs. Any trade names and product names of companies appearing on Brother products, related documents and any other materials are all trademarks or registered trademarks of those respective companies. - Page 3 The table below shows the functional comparison between the models covered by this manual. DCP-J4120DW MFC-J4320DW MFC-J4420DW MFC-J4520DW/ J4620DW/ J4625DW 2.7 inch 3.7 inch √ √ √ √ Photo Capture Center √ Wired LAN √ Confidential...
- Page 4 TABLE OF CONTENTS REGULATION......................... ix SAFETY INFORMATION...................... xiv CHAPTER 1 SPECIFICATIONS ..................1-1 GENERAL ........................1-1 General........................1-1 Media Specification ....................1-1 Paper Handling...................... 1-2 LCD Panel ......................1-2 Memory........................1-2 Interface......................... 1-3 Others........................1-3 FAX..........................1-4 PRINTER ........................1-4 COPY..........................
- Page 5 2.1.1 Document scanning ..................2-3 2.1.2 Printer part ....................2-4 Document Feeding Path/Recording Paper Feeding Path ........2-5 2.2.1 Document Feeding Path ................2-5 2.2.2 Recording Paper Feeding Path..............2-5 Parts Names and Functions .................. 2-6 Block Diagram ....................... 2-7 Components ......................
- Page 6 4.7.4 Wrinkles on documents................2-78 4.7.5 Document size not correctly detected ............2-78 Scanned-image Problems ................... 2-79 4.8.1 Defective images ..................2-79 4.8.2 Troubleshooting from image defect............. 2-79 Fax Problems ...................... 2-83 4.9.1 No faxes can be sent .................. 2-83 4.9.2 No faxes can be received................
- Page 7 Document Separation Roller ASSY..............3-36 Document Detection Sensor PCB and Document Scanning Position Sensor PCB ........................3-39 9.10 Manual Feed Slot Cover ASSY ................3-40 9.11 First Side CIS Unit ....................3-41 9.12 First Side CIS Flat Cable ..................3-44 9.13 Upper Cover ......................
- Page 8 9.45 Base Pad on Paper Tray ASSY................. 3-100 9.46 Paper Pull-in Roller.................... 3-101 CHAPTER 4 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT................4-1 IF YOU REPLACE THE MAIN PCB................4-1 Customize destinations (Maintenance mode 74) ..........4-3 Set the CIS type (Maintenance mode 59) ............. 4-3 Install the firmware (Maintenance mode 28) ............
- Page 9 Acquire white level data (Maintenance mode 55) (Not required after replacement of the ADF unit)................4-16 Check scanning ....................4-16 IF YOU REPLACE THE CONTROL PANEL ASSY............. 4-17 Adjust the touch panel (Maintenance mode 78) ..........4-17 Check LCD operation (Maintenance mode 12) ........... 4-17 Check the operation of the control panel keys (Maintenance mode 13) .....
- Page 10 1.3.12 Printout of Dial Log (Maintenance mode 37)..........5-26 1.3.13 Backup of Machine Information (Maintenance mode 46)......5-27 1.3.14 Setting of Country/Language (Maintenance mode 52) ....... 5-29 1.3.15 Transfer of Received FAX Data and/or Equipment's Log (Maintenance mode 53) ................5-30 1.3.16 Fine Adjustment of Scanning Position (Maintenance mode 54) ....
- Page 11 CHAPTER 6 CIRCUIT DIAGRAMS AND WIRING DIAGRAMS ........6-1 CHAPTER 7 PERIODICAL MAINTENANCE ..............7-1 PERIODICAL REPLACEMENT PARTS ................ 7-1 APPENDIX 1 SERIAL NUMBERING SYSTEM ............App. 1- 1 APPENDIX 2 DELETION OF USER SETTING INFORMATION ......App. 2- 1 APPENDIX 3 INSTALLING THE MAINTENANCE PRINTER DRIVER....
- Page 12 If trouble is experienced with this equipment, for repair or warranty information, please contact Brother Customer Service. If the equipment is causing harm to the telephone network, the telephone company may request that you disconnect the equipment until the problem is resolved.
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Page 13: Federal Communications Commission (Fcc) Declaration Of Conformity (Usa Only)
This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter. IMPORTANT • Changes or modifications not expressly approved by Brother Industries, Ltd. could void the user's authority to operate the equipment. • A specific shielded interface cable should be used to ensure compliance with the limits for a Class B digital device. -
Page 14: Wireless Connection(Mexico Only)
Wireless connection(Mexico only) The operation of this equipment is subject to the following two conditions: It is possible that this equipment or device may not cause harmful interference, and (1) This equipment or device must accept any interference, including interference that may cause undesired operation. -
Page 15: Declaration Of Conformity (Europe Only)
Declaration of Conformity (Europe only) We, Brother Industries Ltd, 15-1 Naeshiro-cho, Mizuho-ku, Nagoya 467-8561 Japan, declare that this product is in conformity with the essential requirements of all relevant directives and regulations applied within the European Community. The Declaration of Conformity (DoC) can be downloaded from our website. - Page 16 The purpose of the International ENERGY STAR Program is to promote the development and popularization of energy-efficient equipment. ® As an ENERGY STAR Partner, Brother Industries, Ltd. has determined that this product meets ® the ENERGY STAR specifications for energy efficiency. xiii...
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Page 17: Safety Information
SAFETY INFORMATION WARNING WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injures. CAUTION CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injuries. IMPORTANT IMPORTANT indicates a potentially hazardous situation which, if not avoided, may result in damage to property or loss of product functionality. -
Page 18: To Use The Machine Safely
To use the machine safely WARNING ELECTRICAL HAZARDS Failure to follow the warnings in this section may create the risk of an electrical shock. In addition, you could create an electrical short, which may create the risk of a fire. There are high-voltage electrodes inside the machine. - Page 19 DO NOT place the following objects on the machine. If these objects contact the electrical parts inside the machine, it may cause a fire or electric shock. • Metal object such as a clip or a staple • Precious metal such as a necklace or a ring •...
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Page 20: Fire Hazards
FIRE HAZARDS Failure to follow the warnings in this section may create the risk of a fire. DO NOT use flammable substances, any type of spray or an organic solvent/liquid that contains alcohol or ammonia to clean the inside or outside of the machine. Doing so could cause a fire or electrical shock.