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Brother MFC-8952DW User Manual

Brother MFC-8952DW
373 pages
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Confidential
Brother Laser MFC
SERVICE MANUAL
MODEL:
DCP - 8110D / 8110DN
DCP - 8112DN / 8150DN / 8152DN
DCP - 8155DN / 8157DN / 8250DN
MFC - 8510DN / 8512DN / 8515DN
MFC - 8520DN / 8710DW / 8712DW
MFC - 8810DW / 8910DW / 8912DW / 8950DW
MFC - 8950DWT / 8952DW / 8952DWT
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
March 2012
SM-FAX135
8C5F01
(2)

Table of Contents

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Brother MFC-8952DW Specifications

General IconGeneral
BrandBrother
ModelMFC-8952DW
CategoryPrinter
LanguageEnglish

Summary

Chapter 1 Specifications

1.1 General

Provides general specifications like print speed, resolution, and power consumption.

1.2 Network Connectivity

Details wired and wireless network support, including protocols and security.

1.3 Service Information

Outlines machine life, part life, MTBF, and monthly volume recommendations.

1.4 Supplies

Lists toner cartridge yields, drum unit life, and shelf life recommendations.

1.5 Paper

Covers paper handling, types, weights, sizes, and paper tray capacities.

1.6 Printable & Scannable Area

Specifies unprintable and unscannable margins for various document sizes.

1.7 Telephone

Information regarding telephone connectivity and features, if applicable.

1.8 FAX (Only for the models with FAX function)

Provides specifications specific to models equipped with FAX functionality.

1.9 Copy

Details copy speed, first copy out time, and resolution capabilities.

1.10 Scanner

Specifies scanner resolution (optical and interpolated) and scanning speeds.

1.11 USB Direct Interface

Describes direct printing capabilities and supported file formats via USB.

Chapter 2 Troubleshooting

1. Introduction

Overview of troubleshooting principles, common problems, and safety precautions.

2. Overview

Details machine components, paper paths, and operational aspects of key parts.

3. Error Indications

Lists and explains error codes, messages, and communication errors for diagnostics.

4. Troubleshooting

Provides detailed steps to diagnose and resolve common machine malfunctions and errors.

Chapter 3 Disassembly and Reassembly

1. Safety Precautions

Essential safety warnings and precautions for handling machine parts during maintenance.

2. Packing

Illustrates the packing procedure for the machine and its accessories.

3. Screw Catalogue

Lists and illustrates various screw types used in the machine for identification.

4. Screw Torque List

Provides specific tightening torque values for screws used in different assembly steps.

5. Lubrication

Details lubrication points, oil types, and quantities required for machine assembly.

6. Overview of Gears

Shows exploded views and names of gears within the machine for disassembly reference.

7. Harness Routing

Illustrates the routing paths and connections for various harnesses within the machine.

8. Disassembly Flow Chart

Provides a visual flow chart outlining the disassembly and reassembly sequence for parts.

9. Disassembly Procedure

Detailed step-by-step instructions for disassembling various machine components.

Chapter 4 Adjusting and Updating Settings

1. If You Replace the Main PCB Assy

Instructions for firmware installation, country setting, and EEPROM initialization after main PCB replacement.

2. If You Replace the Laser Unit

Procedure for entering adjusted values for the laser unit after replacement.

3. If You Replace the Low-Voltage Power Supply PCB Assy

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

4. If You Replace the High-Voltage Power Supply PCB Assy

Procedure for initializing pre-discharge detection parameters after HVPS PCB replacement.

5. If You Replace Any Periodic Replacement Parts

How to reset counters for periodic parts like drum, fuser, and paper feed kits.

6. If You Replace the Control Panel Assy or Touch Panel Assy

Firmware installation and touch panel adjustment procedures for control panel replacements.

7. If You Replace the Document Scanner Unit, ADF Unit (Duplex Scanning Model), or CIS Unit

Procedure for acquiring white level data after replacing scanner or CIS components.

Chapter 5 Service Functions

1. Maintenance Mode

Describes how to enter and use maintenance mode for diagnostics and settings.

2. Other Service Functions

Covers functions like sleep mode settings and resetting periodic part counters.

Chapter 6 Wiring Diagram

1. Wiring Diagram

Presents the main wiring diagram showing PCB connections and component layouts.

Chapter 7 Periodical Maintenance

1. Safety Precautions

General safety warnings and precautions for performing maintenance tasks.

2. Periodical Replacement Parts

Lists parts that require periodic replacement and provides general replacement guidance.

2.1 Preparation

Outlines steps to disconnect cables and remove accessories before disassembly.

2.2 Fuser unit

Step-by-step instructions for disassembling and replacing the fuser unit.

2.3 Laser unit

Detailed procedure for removing and replacing the laser unit.

2.4 MP paper feeding kit

Instructions for disassembling and replacing the MP paper feeding kit.

2.5 Paper feeding kit 1

Procedure for disassembling and replacing paper feeding kit 1.

2.6 Paper feeding kit 2

Procedure for disassembling and replacing paper feeding kit 2.

Appendix 1 Serial Numbering System

Serial number label (1 location)

Shows where the serial number label is located and how to read its format.

Appendix 2 Deleting User Setting Information

Operating Procedure

Steps to delete user setting information stored in the main PCB.

Appendix 3 Installing Maintenance Driver

Operating Procedure

Step-by-step guide for installing the maintenance driver on a computer.

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