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Brother MFC-7380

Brother MFC-7380
307 pages
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Confidential
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
May 2014
SM-FAX160
8C5H*
(3)
Brother Laser MFC
SERVICE MANUAL
MODEL:
DCP-7080/7080D/7180DN
DCP-L2500D/L2520D/L2520DW
DCP-L2540DN/L2540DW/L2541DW/L2560DW
HL-L2380DW
MFC-7380/7480D/7880DN
MFC-L2680W/L2700D/L2700DN/L2700DW
MFC-L2701D/L2701DW/L2703DW/L2705DW
MFC-L2720DW/L2740DW

Table of Contents

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Brother MFC-7380 Specifications

General IconGeneral
FunctionsPrint, Copy, Scan, Fax
Print TechnologyLaser
Print Resolution2400 x 600 dpi
Duplex PrintingManual
Copy Resolution600 x 600 dpi
Scanner TypeFlatbed
Fax Modem Speed33.6 Kbps
Paper Capacity250 sheets
ConnectivityUSB 2.0
Scanner ResolutionUp to 19200 x 19200 dpi (interpolated)
Fax Transmission SpeedApprox. 3 seconds per page
Automatic Document Feeder (ADF)Yes, 35 sheets
Supported Media SizesLetter, Legal, A4, A5, B5
Toner Yield (Standard)1200 pages
Toner Yield (High-Yield)2600 pages

Summary

REGULATION

Declaration of Conformity (Europe only)

Declares product compliance with essential EU directives.

Declaration of Conformity for R&TTE (Radio and Telecommunications) Directive 19995 EC (Europe only)

Declares conformity with R&TTE Directive for radio/telecom interfaces.

IEC60825-1:2007 Specification (For 220-240 V models only)

Specifies Class 1 laser product compliance per IEC60825-1:2007.

Wireless LAN (Models with Wireless LAN function only)

States product supports Wireless LAN connectivity.

Disconnect Device

Safety instruction to disconnect power in emergencies.

Wiring Information (U.K. only)

Wiring precautions and color coding for UK power cords.

LAN Connection (Network models only)

Caution against connecting to over-voltage LAN.

Radio Interference

Statement of compliance with EN55022 (CISPR Publication 22)/Class B.

Recycling Information in accordance with the WEEE and Battery Directives

Disposal guidelines for product/battery according to WEEE/Battery Directives.

International ENERGY STAR Qualification Statement

Confirms product meets ENERGY STAR specifications for energy efficiency.

Federal Communications Commission (FCC) Declaration of Conformity (USA only)

FCC compliance statement for Class B digital device.

RF Exposure Notice (USA or Canada only) (Wireless models only)

FCC/IC radiation exposure compliance and installation guidelines.

Wireless Connection (Mexico only)

Mexican regulations for wireless operation, two conditions listed.

Industry Canada Compliance Statement (Canada only)

Industry Canada RSS compliance statement, two conditions listed.

Equipment Attachment Limitations (Canada only) (MFC only)

Technical specifications and Ringer Equivalence Number notice for Canada.

Laser Safety (For 110-120 V models only)

Laser safety information for 110-120V models, Class 1 laser product.

FDA Regulations (For 110-120 V models only)

FDA regulations for laser products manufactured in the US.

For use in the USA or Canada only

Statement regarding product usage limitations to USA/Canada regions.

SAFETY INFORMATION

Definitions of Warnings, Cautions, Notes and Memos

Explains the conventions used for warnings, cautions, notes, and memos in the manual.

To use the Machine Safely

General safety instructions for operating and maintaining the machine.

Caution for Laser Product (WARNHINWEIS fur Laser drucker)

Cautions regarding servicing the laser unit and avoiding direct laser beam exposure.

Additional Information

Warning about reflective objects and laser beam damage to eyes during servicing.

Standard Telephone and FCC Notices (MFC only)

FCC notices and telephone connection guidelines for MFC models sold in the US.

Legal Limitations for Copying (Products with scanning function only)

Information on illegal document reproductions and prohibited copying.

CHAPTER 1 SUPPLEMENTAL SPECIFICATIONS

1. GENERAL

Comparative table of functions for various Brother printer models.

2. NETWORK CONNECTIVITY

Details on wired and wireless network node types for different models.

3. SERVICE INFORMATION

Machine life, part life, MTBF, MTTR, and periodical maintenance parts.

4. SUPPLIES

Information on toner cartridge and drum unit specifications, including page yield and shelf life.

5. MEDIA SPECIFICATIONS

Specifications for paper input, media weight, and media size for the ADF.

6. FAX (ONLY FOR THE MODELS WITH FAX FUNCTION)

Fax specifications including modem speed, transmission speed, and ITU-T group.

7. COPY

Copy speed, first copy out time, resolution, and auto duplex scanning copy features.

8. SCANNER

Scanner specifications including resolution, scanning speed, and interpolated resolution.

CHAPTER 2 ERROR INDICATIONS & TROUBLESHOOTING

1. INTRODUCTION

Explains the purpose of the chapter: typical problems and recovery procedures.

1.2 Checks before Commencing Troubleshooting

Pre-troubleshooting checks for operating environment, power supply, paper, and consumables.

2. OVERVIEW

Provides diagrams and descriptions of the printer and scanner parts.

2.5 Main Components

Illustrates the main internal components of the machine.

3. ERROR INDICATIONS

Details machine error codes and their potential causes and remedies.

3.1 Error Codes

Lists error codes, descriptions, and corresponding page references for troubleshooting.

3.2 Error Messages

Lists error messages displayed on LCD for 2-line and touch panel models with descriptions.

3.3 Communication Errors

Lists communication error codes, their causes, and refer-to pages.

4. TROUBLESHOOTING

Provides step-by-step solutions for common machine errors and problems.

4.1 Error Cause and Remedy

Details specific error codes, their causes, and remedies, often with step-by-step instructions.

4.2 Troubleshooting for Paper Feeding Problems

Addresses issues like no paper fed, multiple sheets fed, paper jams, and curling.

4.3 Troubleshooting for Image Defects

Covers common image defects like light print, dark print, streaks, and fogging, with causes and remedies.

4.4 Troubleshooting for Software Problems

Solutions for software-related issues like inability to receive data or update firmware.

4.5 Troubleshooting for Network Problems

Steps to resolve network connectivity issues like inability to print or connect to access points.

4.6 Troubleshooting for Control Panel Problems

Solutions for issues related to the control panel, LCD, or LED displays not working.

4.7 Troubleshooting for Toner and Drum Problems

Addresses issues with new toner detection, cartridge recognition, and error messages not clearing.

4.8 Troubleshooting for Fuser Unit Problems

Troubleshooting steps for fuser unit failures.

4.9 Troubleshooting for Laser Unit Problems

Steps to diagnose and resolve laser unit failures.

4.10 Troubleshooting for PCB Problems

Solutions for issues related to Main PCB, memory, or print limit errors.

4.11 Troubleshooting for Document Feeding Problems

Covers problems with document feeding in the ADF, such as jams or incorrect size detection.

4.12 Troubleshooting for Image Defects

Details troubleshooting steps for various image quality defects like light print, dark print, and streaks.

4.13 Troubleshooting for Fax Problems

Solutions for fax transmission and reception issues like cannot send/receive or communication errors.

4.14 Troubleshooting for Other Problems

Addresses general problems like inability to print, update firmware, or turn on the machine.

CHAPTER 3 DISASSEMBLYREASSEMBLY

1. SAFETY PRECAUTIONS

Important warnings and precautions for performing disassembly and reassembly.

2. PACKING

Illustrates the packing procedure and components for shipping or storage.

3. SCREW CATALOGUE

Lists and illustrates various screw types used in the machine.

4. SCREW TORQUE LIST

Provides torque specifications for screws used in different assemblies.

5. LUBRICATION

Details lubricating points and types of oil/grease used for machine parts.

6. OVERVIEW OF GEARS

Shows layout and development views of the gear system with part names.

7. HARNESS ROUTING

Illustrates the routing paths for various wiring harnesses within the machine.

8. DISASSEMBLY FLOW CHART

A visual guide showing the sequence of disassembly and reassembly steps.

9. DISASSEMBLY PROCEDURE

Step-by-step instructions for disassembling various parts and units of the machine.

9.1 Preparation

Instructions for preparing the machine before disassembly, including transferring FAX data.

CHAPTER 4 ADJUSTING AND UPDATING SETTINGS AS REQUIRED AFTER PARTS REPLACEMENT

1. IF YOU REPLACE THE MAIN PCB ASSY

Procedures for setting by spec, installing firmware, and initializing EEPROM after PCB replacement.

2. IF YOU REPLACE THE LOW-VOLTAGE POWER SUPPLY PCB ASSY

Steps to reset the irregular power supply detection counter after replacing the LVPS PCB.

3. IF YOU REPLACE THE LASER UNIT

Procedure for entering the adjusted value of the laser unit after replacement.

4. IF YOU REPLACE THE PANEL UNIT OR PANEL PCB UNIT

Instructions for installing firmware, adjusting touch panel, and checking LCD operation.

5. IF YOU REPLACE THE FIRST SIDE CIS UNIT OR DOCUMENT SCANNER UNIT

Steps for acquiring white level data and performing scanning/printing checks after CIS/scanner replacement.

6. IF YOU REPLACE THE ADF UNIT OR SECOND SIDE CIS UNIT

Procedures for acquiring white level data and checking ADF/CIS performance after replacement.

CHAPTER 5 SERVICE FUNCTIONS

1. FUNCTION CODE

Introduction to using function codes for machine maintenance and adjustments.

1.1 How to Enter Maintenance Mode

Explains how service personnel can access the machine's maintenance mode.

1.2 List of Maintenance Mode Functions

A table listing all available maintenance mode functions with their codes and refer-to pages.

1.3 Details of Maintenance Mode Functions

Detailed descriptions and operating procedures for various maintenance mode functions.

1.3.1 Initialize EEPROM parameters (function code: 01, 91)

Procedure to initialize EEPROM parameters for operation, user switches, and worker switches.

1.3.3 ADF performance test (function code: 08)

Tests the performance of the automatic document feeder by counting scanned pages.

1.3.4 Monochrome print quality test pattern (function code: 09)

Prints monochrome test patterns to check image quality and detect missing images.

1.3.5 Set worker switches (WSW) and print worker switch setting data (function code: 10, 11)

Allows setting and printing worker switch configurations for machine functions.

1.3.6 Check LCD operation (function code: 12)

Verifies the normal operation of the LCD display on the control panel.

1.3.7 Check control panel operation (function code: 13)

Checks if all keys on the control panel are functioning correctly.

1.3.8 Display software version (function code: 25)

Displays operation data, version, and checksum information for software parts.

1.3.9 Change OnePushDemo function setting (function code: 28)

Enables or disables the Demo printing function for sales promotion.

1.3.10 Check sensor operation (function code: 32)

Checks the status and operation of various sensors within the machine.

1.3.11 Display LAN connection status (function code: 33)

Checks the connection status of the wired LAN.

1.3.12 Set PC print functions (function code: 43)

Allows changing various print function settings for PC printing.

1.3.14 Set country language (function code: 52)

Customizes EEPROM settings for language, function settings, and firmware switches.

1.3.15 Transfer received fax data log information (function code: 53) (fax models only)

Transfers received fax data, log information, communication reports, or machine logs.

1.3.16 Fine-tune scanning position (function code: 54)

Adjusts the scanning start and end positions for ADF and FB scanning.

1.3.17 Acquire white level data and set CIS scan area (function code: 55)

Acquires CIS unit white level data and stores scan area in EEPROM.

1.3.19 Continuous print test (function code: 67)

Conducts paper feed and eject tests while printing patterns.

1.3.20 Print frame pattern (single-side printing) (function code: 69)

Prints a frame pattern on one side of paper to check print quality.

1.3.21 Print frame pattern (duplex printing) (function code: 70)

Prints frame patterns on both sides of paper to check print quality.

1.3.22 Print test pattern (function code: 71)

Prints test patterns to check developer roller or exposure drum condition.

1.3.23 Setting by spec (function code: 74)

Customizes machine settings like language, function settings, and worker switches.

1.3.24 Print maintenance information (function code: 77)

Prints consumables status, replacement counts, and counter information.

1.3.25 Check fan operation (function code: 78)

Checks fan operation at different speeds (100%, 50%, OFF).

1.3.26 Display machine log information (function code: 80)

Displays machine log information including error logs, serial numbers, and page counts.

1.3.27 Display machine error code (function code: 82)

Displays the latest machine error code on the LCD.

1.3.28 Send communication log information to telephone line (function code: 87)

Sends error lists to service personnel for fax communication problem analysis.

1.3.30 Quit maintenance mode (function code: 99)

Exits maintenance mode, restarts the machine, and returns it to the ready state.

2. OTHER SERVICE FUNCTIONS

Lists additional service functions available for the machine.

2.1 Print Communication Error List

Prints the communication error list for troubleshooting.

CHAPTER 6 WIRING DIAGRAM

1. WIRING DIAGRAM

Provides a schematic diagram illustrating the electrical connections within the machine.

CHAPTER 7 PERIODICAL MAINTENANCE

1. PERIODICAL REPLACEMENT PARTS

States that there are no parts that require periodic replacement.

APPENDIX 1 SERIAL NUMBERING SYSTEM

Serial number labels for the machine itself

Explains how to read and locate the machine's serial number label.

APPENDIX 2 DELETING USER SETTING INFORMATION

APPENDIX 3 INSTALLING THE MAINTENANCE PRINTER DRIVER

Windows XP

Step-by-step guide for installing the maintenance printer driver on Windows XP.

Windows VistaWindows 7 Windows 8 Windows 8.1

Installation guide for the maintenance printer driver on Windows Vista/7/8/8.1.

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