Brother MFC8440, MFC8840D, MFC8840DN, DCP8040, DCP8045D Service Manual

...



SERVICE MANUAL

MODEL: MFC8440/8840D/8840DN

DCP8040/8045D/8045DN

Read this manual thoroughly before maintenance work. Keep this manual in a convenient place for quick and easy reference at all times.



in writing from the publisher. Specifications are subject to change without notice.

Trademarks: The brother logo is a registered trademark of Brother Industries, Ltd. Apple, the Apple Logo, and Macintosh are trademarks, registered in the United States and

other countries, and TrueType is a trademark of Apple computer, Inc. Microsoft and MS-DOS are registered trademarks of Microsoft Corporation. Windows is a registered trademark of Microsoft Corporation in the U.S. and other countries.



MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

PREFACE

This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother machine. It includes information required for field troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel will be able to understand machine function, to rapidly repair the machine and order any necessary spare parts.

To perform appropriate maintenance so that the machine is always in best condition for the customer, the service personnel must adequately understand and apply this manual.

This manual is made up of six chapters and appendices.

CHAPTER 1: GENERAL

CHAPTER 2: INSTALLATION AND BASIC OPERATION

CHAPTER 3: THEORY OF OPERATION

CHAPTER 4: DISASSEMBLY AND RE-ASSEMBLY

CHAPTER 5: PERIODIC MAINTENANCE

CHAPTER 6: TROUBLESHOOTING

CHAPTER 7: MAINTENANCE MODE

APPENDIX 1: EEPROM CUSTOMIZING CODES

APPENDIX 2: INSTALLING THE UPDATE DATA

APPENDIX 3: FIRMWARE SWITCHS (WSW)

APPENDIX 4: CIRCUIT DIAGRAMS

Information in this manual is subject to change due to improvement or redesign of the product. All relevant information in such cases will be supplied in service information bulletins (Technical Information).

A thorough understanding of this printer, based on information in this service manual and service information bulletins, is required for maintaining its print quality performance and for improving the practical ability to find the cause of problems.

TABLE OF CONTENTS

REGULATION............................................................................................ viii

SAFETY INFORMATION.............................................................................. x

CHAPTER 1 GENERAL...........................................................................1-1

1. OVERVIEW ............................................................................................................ 1-1

2. SPECIFICATIONS.................................................................................................. 1-3

2.1 General.............................................................................................................................1-3

2.2 General (Continued).........................................................................................................1-3

2.3 Print Media .......................................................................................................................1-4

2.4 Copy.................................................................................................................................1-4

2.5 Fax....................................................................................................................................1-5

2.6 Scanner............................................................................................................................1-6

2.7 Printer...............................................................................................................................1-6

2.8 Interfaces..........................................................................................................................1-7

2.9 Consumable Items ...........................................................................................................1-7

2.10 Network (LAN) Board (NC-9100h) ...................................................................................1-7

2.11 Computer Requirements ..................................................................................................1-8

2.12 Paper................................................................................................................................1-9

2.12.1 Type and size of paper........................................................................................................1-9

2.12.2 Recommended paper..........................................................................................................1-9

2.12.3 Paper capacity of the paper trays........................................................................................1-9

2.12.4 Paper specifications for each paper tray..........................................................................1-10

2.13 Printable Area.................................................................................................................1-11

2.13.1 PCL5e/EPSON/IBM emulation .......................................................................................... 1-11

2.13.2 PCL6/BR-Script3 emulation..............................................................................................1-14

2.14 Print Speeds with Various Settings ................................................................................1-15

2.15 Toner Cartridge Weight Information...............................................................................1-15

3. SERIAL NO. DESCRIPTIONS.............................................................................. 1-16

CHAPTER 2 INSTALLATION AND BASIC OPERATION....................... 2-1

1. CONDITIONS REQUIRED FOR INSTALLATION................................................... 2-1

1.1 Power Supply....................................................................................................................2-1

1.2 Environment .....................................................................................................................2-1

2. UNPACKING........................................................................................................... 2-2

3. INSTALL THE MACHINE........................................................................................ 2-3

3.1 For All Users.....................................................................................................................2-3

3.1.1 Install the Automatic Document Feed (ADF) support..........................................................2-4

3.1.2 Install the drum unit assembly.............................................................................................2-5

3.1.3 Load paper into the paper tray............................................................................................2-6

3.1.4 Release the scanner lock....................................................................................................2-7

3.2 Installing the Driver & Software ........................................................................................2-8

3.2.1 For USB Interface Cable Users (For Windows® 98/98SE/Me/2000 Professional/XP)........2-8

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

3.2.2 For Parallel Interface Cable Users (For Windows

3.2.3 For Windows NT

95/98/98SE/Me/2000 Professional/XP)...................................................2-13

Workstation Version 4.0 Users............................................................2-18

3.2.4 For Network Interface Cable Users

(For Windows

3.2.5 For USB Interface Cable Users (For Mac

3.2.6 For USB Interface Cable Users (For Mac

3.2.7 For Network Interface Cable Users (For Mac

3.2.8 For Network Interface Cable Users (For Mac

95/98/98SE/Me/NT/2000 Professional/XP)..............................................2-20

OS 8.6 to 9.2 Users)......................................2-23

OS X 10.1/10.2.1 or greater Users)...............2-24

OS 8.6 to 9.2 Users)................................2-25

OS X 10.1/10.2.1 or greater Users).........2-26

CHAPTER 3 THEORY OF OPERATION................................................. 3-1

1. ELECTRONICS ...................................................................................................... 3-1

1.1 General Block Diagram ....................................................................................................3-1

1.2 Main PCB Block Diagram.................................................................................................3-2

1.3 Main PCB .........................................................................................................................3-3

1.3.1 CPU.....................................................................................................................................3-3

1.3.2 USB.....................................................................................................................................3-3

1.3.3 IEEE 1284...........................................................................................................................3-4

1.3.4 ROM....................................................................................................................................3-4

1.3.5 Flash ROM..........................................................................................................................3-5

1.3.6 SDRAM ...............................................................................................................................3-5

1.3.7 Optional RAM......................................................................................................................3-6

1.3.8 EEPROM.............................................................................................................................3-7

1.3.9 Reset circuit ........................................................................................................................3-7

1.3.10 Engine I/O ...........................................................................................................................3-7

1.3.11 Panel I/O .............................................................................................................................3-7

1.3.12 Video I/O .............................................................................................................................3-8

1.3.13 Scanner control ...................................................................................................................3-8

1.3.14 Power supply.......................................................................................................................3-9

1.4 Engine PCB....................................................................................................................3-10

1.5 Power Supply..................................................................................................................3-11

1.5.1 Low-voltage power supply.................................................................................................3-11

1.5.2 High-voltage power supply................................................................................................3-12

2. MECHANICS ........................................................................................................ 3-13

2.1 Overview of Printing Mechanism....................................................................................3-13

2.2 Scanner Mechanism.......................................................................................................3-14

2.3 Paper Transfer ...............................................................................................................3-15

2.3.1 Paper supply .....................................................................................................................3-15

2.3.2 Paper registration..............................................................................................................3-15

2.3.3 Paper eject........................................................................................................................3-16

2.3.4 Duplex printing ..................................................................................................................3-16

2.4 Sensors ..........................................................................................................................3-17

2.4.1 Cover sensors...................................................................................................................3-17

2.4.2 Toner sensors ...................................................................................................................3-17

2.4.3 Cassette sensor / Paper empty sensor.............................................................................3-18

2.4.4 Paper eject sensor............................................................................................................3-18

2.4.5 MP-PE sensor...................................................................................................................3-19

2.4.6 Document cover sensor....................................................................................................3-19

2.4.7 Document front sensor / Document rear sensor...............................................................3-20

2.4.8 DX-sensor PCB ASSY.......................................................................................................3-20

iii

TABLE OF CONTENTS

2.4.9 Rear cover sensor.............................................................................................................3-21

2.4.10 HP sensor.........................................................................................................................3-21

2.5 Drum Unit .......................................................................................................................3-22

2.5.1 Photosensitive drum..........................................................................................................3-22

2.5.2 Primary charger.................................................................................................................3-22

2.5.3 Transfer roller....................................................................................................................3-22

2.5.4 Cleaner..............................................................................................................................3-22

2.6 Toner Cartridge ..............................................................................................................3-22

2.7 Print Process..................................................................................................................3-22

2.7.1 Charging............................................................................................................................3-22

2.7.2 Exposure stage .................................................................................................................3-23

2.7.3 Developing........................................................................................................................3-24

2.7.4 Transfer.............................................................................................................................3-24

2.7.5 Fixing stage.......................................................................................................................3-25

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY .............................. 4-1

1. SAFETY PRECAUTIONS....................................................................................... 4-1

2. DISASSEMBLY FLOW ........................................................................................... 4-2

3. DISASSEMBLY PROCEDURE............................................................................... 4-3

3.1 AC Cord............................................................................................................................4-3

3.2 Drum Unit .........................................................................................................................4-3

3.3 Paper Tray........................................................................................................................4-4

3.4 DX Feed ASSY (MFC-8840D/8840DN, DCP-8045D/8045DN only) ..............................4-14

3.5 Access Cover / Battery...................................................................................................4-17

3.6 Driver PCB Access Cover ..............................................................................................4-18

3.7 ADF Unit.........................................................................................................................4-19

3.8 Document Scanner.........................................................................................................4-28

3.9 Panel Unit.......................................................................................................................4-33

3.10 Rear Cover C (MFC-8440, DCP-8040 only)...................................................................4-36

3.11 Outer Chute (MFC-8440, DCP-8040 only) .....................................................................4-37

3.12 Rear Cover MP ASSY / Outer Chute MP ASSY

(MFC-8840D/8840DN, DCP-8045D/8045DN only)........................................................4-38

3.13 Rear Cover L/R...............................................................................................................4-39

3.14 Side Cover L/R ...............................................................................................................4-40

3.15 Joint Cover .....................................................................................................................4-41

3.16 Front Cover ASSY (MFC-8440, DCP-8040 only) ...........................................................4-45

3.17 MP Unit (MFC-8840D/8840DN, DCP-8045D/8045DN only) ..........................................4-46

3.18 Rear Cover Sensor.........................................................................................................4-51

3.19 NCU (MFC-8440/8840D/8840DN only)..........................................................................4-52

3.20 Fixing Unit.......................................................................................................................4-53

3.21 Laser Unit .......................................................................................................................4-62

3.22 Main PCB .......................................................................................................................4-64

3.23 Base Plate / LV Insulation Sheet....................................................................................4-66

3.24 DX-Sensor PCB ASSY (MFC-8840D/8840DN, DCP-8045D/8045DN only)...................4-67

3.25 Engine PCB....................................................................................................................4-68

3.26 High-voltage PS PCB ASSY...........................................................................................4-69

3.27 Low-voltage PS PCB ASSY............................................................................................4-70

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

3.28 Paper Feeder..................................................................................................................4-71

3.29 Frame L / Drive Unit .......................................................................................................7-78

3.30 Reversing Release Solenoid (MFC-8840D/8840DN, DCP-8045D/8045DN only)..........4-82

3.31 Thermistor ASSY............................................................................................................4-83

3.32 Fan Motor 60 Unit LV / Fan Motor 60 Unit......................................................................4-83

3.33 Frame R..........................................................................................................................4-84

SERVICE MANUAL

4. PACKING.............................................................................................................. 4-86

5. GUIDELINES FOR LEAD FREE SOLDER............................................................ 4-87

6. SCREW TORQUE LIST........................................................................................ 4-90

7. LUBRICATION...................................................................................................... 4-92

8. HARNESS ROUTING........................................................................................... 4-97

CHAPTER 5 PERIODIC MAINTENANCE............................................... 5-1

1. CONSUMABLE PARTS.......................................................................................... 5-1

1.1 Drum Unit .........................................................................................................................5-1

1.2 Toner Cartridge ................................................................................................................5-3

2. PERIODICAL REPLACEMENT PARTS.................................................................. 5-7

2.1 Fixing Unit.........................................................................................................................5-8

2.2 Paper Feeding Kit ...........................................................................................................5-16

3. PERIODICAL CLEANING..................................................................................... 5-20

3.1 Cleaning the Machine Exterior .......................................................................................5-20

3.2 Cleaning the Scanner.....................................................................................................5-20

3.3 Cleaning the Printer........................................................................................................5-21

3.4 Cleaning the Drum Unit ..................................................................................................5-22

3.5 Cleaning the Scanner Window.......................................................................................5-22

3.6 Cleaning the Electrical Terminals...................................................................................5-23

4. MTBF / MTTR....................................................................................................... 5-24

CHAPTER 6 TROUBLESHOOTING ....................................................... 6-1

1. INTRODUCTION .................................................................................................... 6-1

1.1 Initial Check......................................................................................................................6-1

1.2 Warnings for Maintenance Work......................................................................................6-2

1.3 Identify the Problem..........................................................................................................6-3

2. ERROR MESSAGE................................................................................................ 6-4

2.1 Error Message on the LCD...............................................................................................6-4

2.2 Error Codes Shown in the “MACHINE ERROR X

X” message........................................6-7

3. PAPER PROBLEMS............................................................................................. 6-11

3.1 Paper Loading Problems................................................................................................6-11

3.2 Original Jams..................................................................................................................6-12

3.2.1 Original is jammed in the top of the ADF unit....................................................................6-12

3.2.2 Original is jammed inside the ADF unit.............................................................................6-12

3.3 Paper Jams ....................................................................................................................6-13

3.3.1 Clearing jammed paper.....................................................................................................6 -13

3.3.2 Paper is jammed in the Duplex Tray (For MFC-8840D/8840DN, DCP-8045D/8045DN)..6-16

3.3.3 Causes & countermeasures..............................................................................................6-17

TABLE OF CONTENTS

3.4 Paper Feeding Problems................................................................................................6-18

4. SOFTWARE SETTING PROBLEMS .................................................................... 6-20

5. MALFUNCTIONS.................................................................................................. 6-23

6. TROUBLESHOOTING OF THE CONTROL PANEL............................................. 6-28

7. TROUBLESHOOTING OF FAX FUNCTIONS ...................................................... 6-30

8. IMAGE DEFECTS................................................................................................. 6-34

8.1 Image Defect Examples.................................................................................................6-34

8.2 Diameter of Rollers.........................................................................................................6-34

8.3 Troubleshooting Image Defect.......................................................................................6-35

8.4 Location of Grounding Contacts.....................................................................................6-53

8.4.1 Drum unit...........................................................................................................................6-53

8.4.2 Machine body & Paper tray ..............................................................................................6-53

9. INCORRECT PRINTOUT ..................................................................................... 6-54

10. NETWORK PROBLEM......................................................................................... 6-56

10.1 Installation Problem........................................................................................................6-56

10.2 Intermittent Problem .......................................................................................................6-57

10.3 TCP/IP Troubleshooting.................................................................................................6-58

10.4 UNIX Troubleshooting....................................................................................................6-58

10.5 Windows

10.6 Windows

10.7 Windows

10.8 Windows

10.9 Brother Internet Print (TCP/IP) Troubleshooting ............................................................6-60

10.10 Windows

10.11 Novell Netware Troubleshooting ....................................................................................6-61

10.12 AppleTalk Troubleshooting.............................................................................................6-62

10.13 DLC/LLC Troubleshooting..............................................................................................6-62

10.14 Web Browser Troubleshooting (TCP/IP)........................................................................6-62

10.15 Internet Fax Troubleshooting..........................................................................................6-63

NT/LAN Server (TCP/IP) Troubleshooting....................................................6-59

95/98/Me Peer to Peer Print (LPR) Troubleshooting ....................................6-59

95/98/Me Peer to Peer (HP JetAdmin Compatible Method) Troubleshooting........6-59

95/98/Me/NT 4.0/2000 Peer to Peer Print (NetBIOS) Troubleshooting........6-60

95/98/Me/2000/XP IPP Troubleshooting.......................................................6-60

CHAPTER 7 MAINTENANCE MODE...................................................... 7-1

1. ENTRY INTO THE MAINTENANCE MODE............................................................ 7-1

2. LIST OF MAINTENANCE–MODE FUNCTIONS..................................................... 7-2

3. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS................... 7-4

3.1 EEPROM Parameter Initialization (Maintenance mode 01/91) ........................................7-4

3.2 Printout of Scanning Compensation Data (Maintenance mode 05).................................7-5

3.3 Placement of CCD Unit in Position for Transportation (Maintenance mode 06)..............7-7

3.4 ADF Performance Test (Maintenance mode 08) .............................................................7-7

3.5 Test Pattern 1 (Maintenance mode 09)............................................................................7-8

3.6 Firmware Switch Setting and Printout ..............................................................................7-9

3.6.1 Firmware switch setting (Maintenance mode 10)................................................................7-9

3.6.2 Printout of firmware switch data (Maintenance mode 11).................................................7-11

3.7 Operation Check of LCD (Maintenance mode 12).........................................................7-12

3.8 Operational Check of Control Panel PCB (Maintenance mode 13) ...............................7-13

3.9 Sensor Operational Check (Maintenance mode 32)......................................................7-14

3.10 Received Data Transfer Function (Maintenance mode 53)............................................7-16

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

3.11 Fine Adjustment of Scan Start/End Positions (Maintenance mode 54)..........................7-18

3.12 CCD Scanner Area Setting (Maintenance mode 55) .....................................................7-20

3.13 EEPROM Customizing (Maintenance mode 74)............................................................7-21

3.14 Printing out of Machine Log Information (Maintenance mode 77)..................................7-22

3.15 Display of the Equipment’s Log Information (Maintenance mode 80)............................7-24

3.16 Machine Error Code Indication (Maintenance mode 82)................................................7-26

3.17 Output of Transmission Log to the Telephone Line (Maintenance mode 87) ................7-26

3.18 Cancellation of the Memory Security Mode (Not applicable to the Japanese version) .7-27

SERVICE MANUAL

APPENDIX 1 EEPROM CUSTOMIZING CODES ...................................A-1

APPENDIX 2 INSTALLING THE UPDATE DATA....................................A-3

1. INSTALLING THE UPDATE DATA TO THE MACHINE..........................................A-3

1.1 Connecting the Machine to Your PC ................................................................................A-3

1.2 Setting up the Machine and Your PC ...............................................................................A-3

1.3 Installing the Update Data onto the Flash ROM of the Machine ......................................A-4

2. SETTING ID CODES TO MACHINES.....................................................................A-5

2.1 Connecting the Machine to Your PC ................................................................................A-5

2.2 Setting Up the Machine and Your PC...............................................................................A-5

2.3 Running the Setup Utility..................................................................................................A-6

APPENDIX 3 FIRMWARE SWITCHS (WSW) .........................................A-7

APPENDIX 4 CIRCUIT DIAGRAMS

4.1 Main PCB Circuit Diagram (1/7).....................................................................................A-50

4.2 Main PCB Circuit Diagram (2/7).....................................................................................A-51

4.3 Main PCB Circuit Diagram (3/7).....................................................................................A-52

4.4 Main PCB Circuit Diagram (4/7).....................................................................................A-53

4.5 Main PCB Circuit Diagram (5/7).....................................................................................A-54

4.6 Main PCB Circuit Diagram (6/7).....................................................................................A-55

4.7 Main PCB Circuit Diagram (7/7).....................................................................................A-56

4.8 Driver PCB Circuit Diagram ...........................................................................................A-57

4.9 Engine PCB Circuit Diagram (1/2)..................................................................................A-58

4.10 Engine PCB Circuit Diagram (2/2)..................................................................................A-59

4.11 NCU PCB Circuit Diagram (U.S.A.)................................................................................A-60

4.12 NCU PCB Circuit Diagram (Europe) ..............................................................................A-61

4.13 NCU PCB Circuit Diagram (Asia) ...................................................................................A-62

4.14 NCU PCB Circuit Diagram (Oceania).............................................................................A-63

4.15 Control Panel PCB Circuit Diagram................................................................................A-64

4.16 Low-voltage Power Supply PCB Circuit Diagram (200V) ...............................................A-65

4.17 Low-voltage Power Supply PCB Circuit Diagram (100V) ...............................................A-66

4.18 High-voltage Power Supply PCB Circuit Diagram (200V) ..............................................A-67

4.19 High-voltage Power Supply PCB Circuit Diagram (100V) ..............................................A-68

vii

REGULATION

LASER SAFETY (110 - 120V MODEL ONLY)

This printer is certified as a Class I laser product under the US Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation.

Since radiation emitted inside the printer is completely confined within the protective housing and external covers. the laser beam cannot escape form the machine during any phase of user operation.

FDA REGULATIONS (110 - 120V MODEL ONLY)

The US Food and Drug Administration (FDA) has implemented regulations for laser products manufactured on and after August 2, 1976. Compliance is mandatory for products marketed in the United States. One of the following labels on the back of the printer indicates compliance with the FDA regulations and must be attached to laser products marketed in the United States.

The label for Japanese manufactured products

MANUFACTURED: K BROTHER INDUSTRIES, LTD.

15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. This product complies with FDA radiation performance standards, 21 CFR Subchapter J.

The label for Chinese manufactured products

MANUFACTURED: C BROTHER Corporation (Asia) Ltd. Shenzen Buji Nan Ling Factory

Gold Garden Ind., Nan Ling Village, Buji, Rong Gang, Shenzen, CHINA This product complies with FDA radiation performance standards, 21 CFR Subchapter J.

Caution

Use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

viii

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

IEC 825 (220-240V MODEL ONLY)

This printer is a Class I laser product as defined in IEC 825 specifications. The label shown below is attached in countries where required.

CLASS 1LASERP RODUCT APPAREIL Å LASER DE CLASSE 1 LASER KLASSE 1 PRODUKT

This printer has a laser diode which emits invisible laser radiation in the Laser Unit. The Laser Unit should not be opened without disconnecting the two connectors connected with the AC power supply and laser unit. Since the variable resistor in the laser unit is adjusted in accordance with the standards, never touch it.

Caution

Use of controls, adjustments or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

For Finland and Sweden LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT

Varoitus! Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.

Varning – Om apparaten används på annat sätt än i denna Bruksanvisning specificerats, kan användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass

SAFETY INFORMATION

CAUTION FOR LASER PRODUCT (WARNHINWEIS FUR LASER DRUCKER)

CAUTION: When the machine during servicing is operated with the cover open, the

CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To

ACHTUNG: Im Falle von Störungen der Lasereinheit muß diese ersetzt werden. Das

SAFETY INFORMATION

regulations of VBG 93 and the performance instructions for VBG 93 are valid.

prevent direct exposure to the laser beam, do not try to open the enclosure of the laser unit.

Gehäuse der Lasereinheit darf nicht geöffnet werden, da sonst Laserstrahlen austreten können.

ADDITIONAL INFORMATION

When servicing the optical system of the printer, be careful not to place a screwdriver or other reflective object in the path of the laser beam. Be sure to take off any personal accessories such as watches and rings before working on the printer. A reflected beam, though invisible, can permanently damage the eyes.

Since the beam is invisible, the following caution label is attached on the laser unit.

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

DEFINITIONS OF WARNINGS, CAUTIONS AND NOTES

The following conventions are used in this service manual:

SERVICE MANUAL

WARNING

Indicates warnings that must be observed to prevent possible personal injury.

CAUTION:

Indicates cautions that must be observed to service the printer properly or prevent damage to the printer.

NOTE: Indicates notes and useful tips to remember when servicing the printer.

**Listed below are the various kinds of “WARNING” messages included in this manual.

WARNING

Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the printer.

WARNING

Some parts inside the printer are extremely hot immediately after the printer is used. When opening the front cover or back cover to access any parts inside the printer, never touch the shaded parts shown in the following figures.

WARNING

If you analyze malfunctions with the power plug inserted into the power outlet, special caution should be exercised even if the power switch is OFF because it is a single pole switch.

CHAPTER 1 GENERAL

1. OVERVIEW

utomatic document feeder (ADF)

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

DF document support extension

Control panel

Face-down output tray support flap

Front cover release button

Manual feed tray (MFC-8440, DCP-8040) Multi-purpose tray (MP tray) (MFC-8840D/8840DN, DCP-8045D/8045DN)

Paper tray (Tray #1)

Fig. 1-1

DF document output support flap

Document cover

Power switch

Front cover

DF cover

Face-up output tray (Back output tray)

Duplex tray (MFC-8840D/8840DN, DCP-8045D/8045DN)

C power connector

Paper adjustment lever for duplex printing (MFC-8840D/8840DN, DCP-8045D/8045DN)

External telephone line jack

Fig. 1-2

1-1

Parallel interface connec tor

Telephone line jack

USB interface connector

CHAPTER 1 GENERAL

Document cover

Scanner lock lever

Glass strip

Document guidelines

White film

Scanner glass

Fig. 1-3

1-2

2. SPECIFICATIONS

2.1 General

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

Memory Capacity Optional Memory Automatic Document Paper Tray Multi-Purpose Tray

Manual Feed Tray Printer Type Print Method LCD

(Liquid Crystal Display)

Warm-up Power Source Power Consumption

32 MB 1 DIMM slot; Memory expandable up to 160 MB Up to 50 pages 250 Sheets (20 lb) 50 Sheets (20 lb) (MFC-8840D/8840DN, DCP-8045D/8045DN

only) Single sheet (20 lb) (MFC-8440, DCP-8040 only) Laser Electrophotography by semiconductor laser beam scanning 22 characters x 5 lines

Max. 18 seconds at 73.4°F (23°C) 120V AC 50/60Hz (U.S.A., CANADA Version only) Average Operating (Copying): 450 W or less (25°C)

Peak: 1090 W or less Sleep: with Network 16 W or less

with out Network 14 W or less

Standby: 85 W or less (25°C)

Dimensions

Weight

Noise

2.2 General (Continued)

Temperature

Humidity

20.7 x 17.3 x 18.3 (in.) 532 x 444 x 469 (mm)

Without Drum/Toner Unit:

MFC-8440, DCP-8040: 36.6 lb/16.6 kg MFC-8840D/8840DN, DCP-8045D/8045DN: 39.9 lb/18.1 kg

Operating: 53 dB A or less Standby: 30 dB A or less

Operating: 50 - 90.5°F (10 - 32.5°C) Storage: 32 - 104°F (0 - 40°C)

Storage: 20 to 80% (without condensation) Operating: 10 to 90% (without condensation)

1-3

CHAPTER 1 GENERAL

2.3 Print Media

Paper Input

• Paper type: Plain paper, recycled paper and transparencies, envelopes

(Manual Feed/Multi-purpose Tray)

• Paper size: A4, Letter, Legal, B5 (ISO), B5 (JIS), Executive, A5, A6,

B6 (ISO)

Weight: 16 - 28 lb (60 - 105 g/m

) (Paper Tray)

For more details, see Paper specifications for each paper

tray on page 1-10.

• Maximum paper tray capacity:

Approx. 250 sheets of 20 lb (80 g/m

) plain paper

• Maximum multi-purpose tray capacity:

Approx. 50 sheets of 20 lb (80 g/m

) plain paper

(MFC-8840D/8840DN, DCP-8045D/8045DN only)

< Manual Feed Tray/Multi-Purpose Tray >

• Paper size:

Width: 20 lb 2.75 - 8.66" (69.8 - 220.0 mm) Height: 4.60 - 16.00" (116.0 - 406.4 mm)

Weight: 16 - 43 lb (60 - 161 g/m

)

Paper Output

2.4 Copy

Color/Monochrome Copy Speed

Multiple Copies Enlarge/Reduce Resolution

Up to 150 sheets of plain paper (Face up print delivery to the output paper support)

Monochrome Up to 21 copies/minute (Letter paper)

Up to 20 copies/minute (A4 paper) Stacks or Sorts up to 99 pages 25% to 400% (in increments of 1%) 600 dpi

1-4

2.5 Fax

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

Compatibility Coding System Modem Speed

Original Size

Scanning Width Printing Width Gray Scale Polling Types Contrast Control Resolution

ITU-T Group 3 MH/MR/MMR/JBIG 33600 bps

Automatic Fallback ADF Width: 5.8" to 8.5" (148 mm to 216 mm)

ADF Height: 5.8" to 14.0" (148 mm to 356 mm) Scanner Width: Max. 8.48" (212 mm) Scanner Height: Max. 14.0" (356 mm)

8.2 inches (208 mm)

64 levels Standard, Sequential Automatic/Light/Dark (manual setting)

• Horizontal 203 dot/inch (8 dot/mm)

• Vertical

• Standard 98 line/inch (3.85 line/mm)

• Fine, Photo 196 line/inch (7.7 line/mm)

• Superfine 392 line/inch (15.4 line/mm)

One-Touch Dial Speed-Dial Automatic Redial Auto Answer Communication

Source Memory Transmission Out of Paper

Reception

40 (20 x 2) 300 stations One time 0, 1, 2, 3 or 4 rings Public switched telephone network.

Up to 600 pages (Brother #1 Chart) Up to 600 pages (Brother #1 Chart)

1-5

CHAPTER 1 GENERAL

2.6 Scanner

Color/Monochrome TWAIN Compliant

WIA Compliant Resolution

Document Size

Scanning Width Gray Scale Scanning Speed

Color/Monochrome

Yes (Windows

Workstation Version 4.0)

NT Yes (Windows

95/98/98SE/Me/2000 Professional and Windows

XP)

Up to 9,600 x 9,600 dpi (interpolated)* Up to 600 x 2,400 dpi (optical)

* Maximum 1200 x 1200 dpi scanning with Windows

XP (resolution up to 9600 x 9600 dpi can be selected by using the Brother scanner utility)

ADF Width: 5.8" to 8.5" (148 mm to 216 mm) ADF Height: 5.8" to 14.0" (148 mm to 356 mm) Scanner Glass Width: Max. 8.5" (216 mm) Scanner Glass Height: Max. 14.0" (356 mm)

8.35 inches (212 mm) 256 levels Color: 1.80 msec/line (Up to 300 x 300 dpi)

: 3.60 msec/line (400 x 400 dpi or higher)

Monochrome: 0.84 msec/line (ADF)

: 1.01 msec/line (Scanner Glass)

NOTE:

• Scanning directly to a networked PC is available with Windows Professional and XP.

• OS X scanning is supported in OS X 10.2.1 or greater.

2.7 Printer

Emulation

Printer Driver

Resolution Print Quality

Print Speed

Duplex Printing

98/98SE/Me/2000

PCL6 (Brother Printing System for Windows HP LaserJet) and BR-Script (PostScript

Windows

95/98/98SE/Me/2000 Professional/XP and Windows

Workstation Version 4.0 driver supporting Brother Native

emulation mode of

) Level 3

Compression mode and bi-directional capability

Macintosh® Quick Draw® Driver and PostScript (PPD) for

Apple OS 8.6-9.2/OS X 10.1/10.2.1 or Greater

HQ1200 (Max. 2400 x 600 dots/inch) Normal printing mode

Economy printing mode (saves toner usage) Up to 21 pages/minute letter size

Up to 20 pages/minute A4 size (when loading paper from paper tray)

Up to 9 images/minute: (MFC-8840D/8840DN,

DCP-8045D/8045DN only)

First Print

Up to 12 seconds (using letter size paper in paper tray)

1-6

2.8 Interfaces

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

Interface Parallel

USB

NOTE:

• Please make sure that you use a Hi-Speed USB 2.0 certified cable if your computer uses a Hi-Speed USB 2.0 interface.

• Even if your computer has a USB 1.1 interface you can connect the MFC.

• To meet FCC/CISPR emission requirements for the MFC, you must attach the included

filter core and cable tie to the parallel interface cable.

2.9 Consumable Items

Toner Cartridge Life Expectancy

Drum Unit Life Expectancy

Recommended Cable A bi-directional shielded parallel cable that is IEEE 1284 compliant

and not longer than 6 feet (2 m). A Hi-Speed USB 2.0 cable that is not longer than 6 feet (2 m).

TN-540/TN-3030: Standard Toner Cartridge - Up to 3,500* pages TN-570/TN-3060: High Yield Toner Cartridge - Up to 6,700* pages *(when printing letter size or A4 paper at 5% print coverage)

NOTE: Toner life expectancy will vary depending upon the type of

average print job.

Up to 20,000 pages/drum unit (DR-3000)

NOTE: There are many factors that determine the actual drum life, such

as temperature, humidity, type of paper, toner you use and number of pages per print job.

2.10 Network (LAN) Board (NC-9100h)

MFC-8440/8840D (Option)

MFC-8840DN (Standard)

DCP-8040/8045D (Option)

When you add the optional Network (LAN) Board (NC-9100h), you can connect your MFC into the network to use the Internet FAX, Network Scanner, Network Printer and Network Management software operations for small workgroups.

NOTE:

SMTP/POP3 E-mail Services are required for Internet Fax.

Support for:

Windows

4.X, 5.X Mac OS 8.6 - 9.2, X 10.0-10.2.1 or Greater Ethernet 10/100 BASE-TX Auto Negotiation TCP/IP, IPX/SPX, AppleTalk, DLC/LLC RARP, BOOTP, DHCP, APIPA, NetBIOS, WINS LPR/LPD, Port9100, SMTP/POP3 SMB(NetBIOS/ IP), IPP, SSDP, Rendezvous, FTP MIBII as well as Brother private MIB TE LNET, SNMP, HTTP, TFTP

Included Utilities:

BRAdmin Professional and Web Based Management

NOTE:

• Scanning directly to a networked PC is not supported in Windows

• BRAdmin Professional is not supported in Mac OS.

95/98/Me/NT® 4.0/2000/XP Novell NetWare 3.X,

95, NT® and Mac OS.

1-7

CHAPTER 1 GENERAL

2.11 Computer Requirements

Computer Platform & Operating

System Version

95, 98, 98SE

Windows® Operating System

Apple® Macintosh Operating System

NT® Workstation

4.0 2000

Professional XP OS 8.6 - 9.2

(Printing, Scanning and PC-FAX Send Only)

Mac OS X

10.1/10.2.1 or greater (Printing, Scanning PC-FAX Send and Remote Setup Only)

Minimum System Requirements Processor

Minimum Speed

Pentium 75MHz

Minimum RAM

24 MB 32 MB

Pentium 150MHz

32 MB 64 MB

Pentium 75MHz

Pentium 133MHz

64 MB 128 MB

Pentium 233MHz

32 MB 64 MB

All base models meet minimum

Requirements

128 MB 160 MB

Recommended RAM

Available Hard Disk Space

Driver

Application Software

100 MB

80 MB

180 MB

50 MB 200 MB

NOTE:

USB is not supported under Windows

95 or Windows NT® WS 4.0.

All registered trademarks referenced herein are the property of their respective companies.

For the latest drivers, go to the Brother Solutions Center at http://solutions.brother.com/

Application software is different for Windows® and Macintosh®.

Scanning is supported in 10.2.1 or greater.

1-8

2.12 Paper

2.12.1 Type and size of paper

The machine loads paper from the installed paper tray, manual feed tray, multi-purpose tray or optional lower tray.

Tray type Model name Paper tray (Tray #1) MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

Manual feed tray MFC-8440, DCP-8040 Multi-purpose tray (MP tray) MFC-8840D/8840DN, DCP-8045D/8045DN Optional lower tray (Tray #2) Option for MFC-8440/8840D/8840DN,

2.12.2 Recommended paper

Plain Paper: Plain Paper: Xerox 4200DP 20 lb

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

DCP-8040/8045D/8045DN

Hammermill Laser Paper 24 lb Transparency: 3M CG 3300 Labels: Avery laser label # 5160

2.12.3 Paper capacity of the paper trays

Paper size Number of sheets Multi-purpose tray (MP tray)

(MFC-8840D/8840DN,

DCP-8045D/8045DN)

Manual feed tray (MFC-8440, DCP-8040)

Paper tray (Tray #1) A4, Letter, Legal, B5 (ISO),

Optional lower tray (Tray #2) A4, Letter, Legal, B5 (ISO),

Width: 69.8 to 220 mm (2.75 to 8.66 in.)

Height: 116 to 406.4 mm (4.57 to 16.0 in.)

Width: 69.8 to 220 mm (2.75 to 8.66 in.)

Height: 116 to 406.4 mm (4.57 to 16.0 in.)

B5 (JIS), Executive, A5, A6, B6 (ISO)

B5 (JIS), Executive, A5, B6 (ISO)

50 sheets (80 g/m

or 20 lb)

Single sheet

250 sheets (80 g/m

or 20 lb)

Duplex printing A4, Letter, Legal —

1-9

CHAPTER 1 GENERAL

2.12.4 Paper specifications for each paper tray

Paper types

Paper weights

Model

MFC-8440 DCP-8040

MFC-8840D/8840DN DCP-8045D/8045DN

Plain paper, Bond paper,

Multi-purpose tray N/A

Recycled paper, Envelope Transparency

, Labels, and

Plain paper, Bond paper,

Manual feed tray

Recycled paper, Envelope, Labels, and

N/A

Transparency Paper tray Plain paper, Recycled paper, and Transparency*2 Optional lower tray Plain paper, Recycled paper, and Transparency Multi-purpose tray

N/A Manual feed tray 60 to 161 g/m2

(16 to 43 lb)

60 to 161 g/m2 (16 to 43 lb)

N/A

Paper tray 60 to 105 g/m2 (16 to 28 lb)

Optional lower tray 60 to 105 g/m Multi- purpose tray

(16 to 28 lb)

Width: 69.8 to 220 mm (2.75 to 8.66 in.)

N/A

Height: 116 to 406.4 mm (4.57 to 16.0 in.)

Manual feed tray Width: 69.8 to 220 mm

Paper sizes

Paper tray A4, Letter, Legal, B5 (ISO), B5 (JIS), Executive, A5,

Optional lower Tray A4, Letter, Legal, B5 (ISO), B5 (JIS), Executive, A5,

*1 Up to 3 envelopes *2 Up to 10 sheets

NOTE: Remove each transparency immediately.

(2.75 to 8.66 in.)

N/A

Height: 116 to 406.4 mm

(4.57 to 16.0 in.)

A6, B6 (ISO)

B6 (ISO)

1-10

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

CAUTION:

When you are choosing print media, be sure to follow the information given below to prevent any paper jams, print quality problems or machine damage;

• It is recommended to use long-grained paper for the best print quality. If short-grained paper is being used, it might be the cause of paper jams.

• Use neutral paper. Do not use acid paper to avoid any damage to the drum unit.

• Avoid using coated paper such as vinyl coated paper.

• Avoid using preprinted or highly textured paper.

• It is recommended to use labels or transparencies which are designed for use in laser

printers.

• Avoid feeding labels with the carrier sheet exposed, or the machine will be damaged.

• Before loading paper with holes such as organizer sheets, be sure to fan the stack well.

• Do not use organizer sheets that are stuck together. The glue that is used might caused

damaged to the machine.

• When printing on the back of pre-printed paper, if the paper is curled, be sure to straighten the paper as much as possible.

• Different types of paper should not be loaded at the same time in the paper tray to avoid any paper jams or misfeeds.

2.13 Printable Area

2.13.1 PCL5e/EPSON/IBM emulation

The figure below shows the printable area each emulation guarantees when printing on Portrait and Landscape.

Portrait

Physical page Printable area

Logical page

B Physical page length D F

Maximum logical page length Distance from edge of physical page to

edge of logical page

C A

1-11

CHAPTER 1 GENERAL

The table below shows the printable areas when printing on Portrait for each paper size.

Size A B C D E F G

Letter

Legal

Folio

Executive

A 4

A 5

A 6

B 5 (JIS)

B 5 (ISO)

B 6 (ISO)

COM10

MONARCH

C 5

NOTE:

• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS except B5 (ISO).

• The dot size is based on 300 dpi resolution.

215.9 mm

8.5” (2,550 dots)

215.9 mm

8.5” (2,550 dots)

215.9 mm

8.5” (2,550 dots)

184.15 mm

7.25” (2,175 dots)

210.0 mm

8.27” (2,480 dots)

148.5 mm

5.85” (1,754 dots)

105.0 mm

4.13” (1,240 dots)

182.0 mm

7.1” (2,130 dots)

176.0 mm

6.93” (2,078 dots)

125.0 mm

4.92” (1,476 dots)

104.78 mm

4.125” (1,237 dots)

98.43 mm

3.875” (1,162 dots)

162.0 mm

6.38” (1,913 dots)

110.0 mm

4.33” (1,299 dots)

279.4 mm

11.0” (3,300 dots)

355.6 mm

14.0” (4,200 dots)

330.2mm

13.0” (3,900 dots)

266.7 mm

10.5” (3,150 dots)

297.0 mm

11.69” (3,507 dots)

210.0 mm

8.27” (2,480 dots)

148.5 mm

5.85” (1,754 dots)

257.0 mm

10.11” (3,033 dots)

250.0 mm

9.84” (2,952 dots)

176.0 mm

6.93” (2,078 dots)

241.3 mm

9.5” (2,850 dots)

190.5 mm

7.5” (2,250 dots)

229.0 mm

9.01” (2,704 dots)

220.0 mm

8.66” (2,598 dots)

203.2 mm

8.0” (2,400 dots)

203.2 mm

8.0” (2,400 dots)

203.2 mm

8.0” (2,400 dots)

175.7 mm

6.92” (2,025 dots)

198.0 mm

7.79” (2,338 dots)

136.5 mm

5.37” (1,612 dots)

93.0 mm

3.66” (1,098 dots)

170.0 mm

6.69” (2,007 dots)

164.0 mm

6.46” (1,936 dots)

164.0 mm

4.44” (1,334 dots)

92.11 mm

3.63” (1,087 dots)

85.7 mm

3.37” (1,012 dots)

150.0 mm

5.9” (1,771 dots)

98.0 mm

3.86” (1,157 dots)

279.4 mm

11.0” (3,300 dots)

355.6 mm

14.0” (4,200 dots)

330.2mm

13.0” (3,900 dots)

266.7 mm

10.5” (3,150 dots)

297.0 mm

11.69” (3,507 dots)

210.0 mm

8.27” (2,480 dots)

148.5 mm

5.85” (1,754 dots)

257.0 mm

10.11” (3,033 dots)

250.0 mm

9.84” (2,952 dots)

176.0 mm

6.93” (2.078 dots)

241.3 mm

9.5” (2,850 dots)

190.5 mm

7.5” (2,250 dots)

229.0 mm

9.01” (2,704 dots)

220.0 mm

8.66” (2,598 dots)

6.35 mm

0.25” (75 dots)

6.35 mm

0.25” (75 dots)

6.01 mm

0.24” (71 dots)

6.35 mm

0.25” (75 dots)

6.01 mm

0.24” (71 dots)

0 mm

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

1-12

Landscape

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

Physical page

Printable area

B Physical page length D Maximum logical page length

F Distance from edge of physical

Logical page

page to edge of logical page

1-13

CHAPTER 1 GENERAL

The table below shows the printable areas when printing on Landscape for each paper size.

Size A B C D E F G

Letter

Legal

Folio

Executive

A 4

A 5

A 6

B 5 (JIS)

B 5 (ISO)

B 6 (ISO)

COM10

MONARCH

C 5

NOTE:

• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS except B5 (ISO).

• The dot size is based on 300 dpi resolution.

279.4 mm

11.0” (3,300 dots)

355.6 mm

14.0” (4,200 dots)

330.2mm

13.0” (3,900 dots)

266.7 mm

10.5” (3,150 dots)

297.0 mm

11.69” (3,507 dots)

210.0 mm

8.27” (2,480 dots)

148.5 mm

5.85” (1,754 dots)

257.0 mm

10.11” (3,033 dots)

250.0 mm

9.84” (2,952 dots)

176.0 mm

6.93” (2,078 dots)

241.3 mm

9.5” (2,850 dots)

190.5 mm

7.5” (2,250 dots) 229 mm

9.01” (2,704 dots) 220 mm

8.66” (2,598 dots)

215.9 mm

8.5” (2,550 dots)

215.9 mm

8.5” (2,550 dots)

215.9 mm

8.5” (2,550 dots)

184.15 mm

7.25” (2,175 dots)

210.0 mm

8.27” (2,480 dots)

148.5 mm

5.85” (1,754 dots)

105.0 mm

4.13” (1,240 dots)

182.0 mm

7.1” (2,130 dots)

176.0 mm

6.93” (2,078 dots)

125.0 mm

4.92” (1,476 dots)

104.78 mm

4.125” (1,237 dots)

98.43 mm

3.875” (1,162 dots) 162 mm

6.38” (1,913 dots) 110 mm

4.33” (1,299 dots)

269.3 mm

10.6” (3,180 dots)

345.5 mm

13.6” (4,080 dots)

320.0mm

12.6” (3,780 dots)

256.6 mm

10.1” (3,030 dots)

287.0 mm

11.2” (3,389 dots)

200.0mm

7.87” (2,362 dots)

138.5 mm

5.45” (1,636 dots)

247.0 mm

9.72” (2,916 dots)

240.0 mm

9.44” (2,834 dots)

166.4 mm

6.55” (1,960 dots)

231.1 mm

9.1” (2,730 dots)

180.4 mm

7.1” (2,130 dots)

219.0 mm

8.62” (2,586 dots)

210.0 mm

8.26” (2,480 dots)

215.9 mm

8.5” (2,550 dots)

215.9 mm

8.5” (2,550 dots)

215.9 mm

8.5” (2,550 dots)

184.15 mm

7.25” (2,175 dots)

210.0 mm

8.27” (2,480 dots)

148.5 mm

5.85” (1,754 dots)

105.0 mm

4.13” (1,240 dots)

182.0 mm

7.1” (2,130 dots)

176.0 mm

6.93” (2,078 dots)

125.0 mm

4.92” (1,476 dots)

104.78 mm

4.125” (1,237 dots)

98.43 mm

3.875” (1,162 dots) 162 mm

6.38” (1,913 dots) 110 mm

4.33” (1,299 dots)

5.0 mm

0.2” (60 dots)

5.0 mm

0.2” (60 dots)

4.8 mm

0.19” (59 dots)

5.0 mm

0.2” (60 dots)

4.8 mm

0.19” (59 dots)

0 mm

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

4.2 mm

0.16” (50 dots)

2.13.2 PCL6/BR-Script3 emulation

You can not print within 4.2 mm (50dots in 300 dpi mode) on all four sides of the paper.

1-14

2.14 Print Speeds with Various Settings

Print speed of the machine is up to 16/17 ppm when loading A4 or Letter size paper from the paper tray in the plain paper mode.

Actual print speed varies depending on the media type or paper size as shown in the tables below;

Media type setting All models

Transparencies Up to 21/20 ppm Thin Paper Up to 21/20 ppm Plain paper, Env.Thin Up to 21/20 ppm Thick Paper, Envelopes Up to 21/20 ppm Thicker/Bond Paper, Env.Thick 4 ppm *

Media type setting All models

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

Transparency Up to 21/20 ppm Thin Paper Up to 21/20 ppm Plain paper, Env.Thin 8 ppm after 5 min. have passed. Thick Paper, Envelopes 8 ppm after 30 sec. have passed. Thicker/Bond Paper, Env.Thick 4 ppm *

*The print speed may vary according to conditions, such as paper size and paper tray.

NOTE:

• When a smaller size paper than A4 or Letter is printed, the temperature on both edges of the fixing unit is much higher than the temperature on the center of the unit where the paper is fed depending on the setting or model. Therefore, the print speed is slowed in order to decrease the temperature on the edges after the specified time, it is maximum print speed when you first start printing.

• Max. speed is 16/17 ppm or more. It varies depending on the paper size.

2.15 Toner Cartridge Weight Information

Toner Cartridge Weight (approx weight)

Brand new Toner Cartridge Weight 827.5g 772.5g Toner Weight at Brand New Toner Cartridge 197.5±2.5g 142.5±2.5g Toner Cartridge Weight at Toner Near Empty 693.5-698.5g 693.5-698.5g Remain Toner Weight at Toner Near Empty 80-85g 80-85g Toner Cartridge Weight at Toner Empty 678.5-683.5g 678.5-683.5g Remain Toner Weight at Toner Empty 60-70g 60-70g

You can print 500 to 600 pages with 10g toner.

*Without yellow protector *Toner cartridge weight may vary within 2 to 3g depending on the cartridge weight.

TN3060/TN570 TN3030/TN540

1-15

CHAPTER 1 GENERAL

3. SERIAL NO. DESCRIPTIONS

The descriptions below show how to understand the meanings of the numbers printed on the labels or bag of the machine and machine parts:

< ID for production month >

A: January B: February C: March D: April E: May F: June G: July H: August J: September K: October L: November M: December

< ID for year >

3: 2003 4: 2004

< ID for factory >

9: Kariya Plant A: Mie Brother C: BIUK J: Buji Nan Ling Factory

(1) Machine: Printed on the label attached on the rear of the main body

(2) Process unit: Imprinted on the aluminum bag

< SERIAL NO. >

U 6 0 6 6 1 D 4 J 1 1 1 0 1 1

FACTORY ID NO.

YEAR

MONTH

SEQUENTIAL NO.

(Drum unit with toner cartridge)

3 A 1 1 J A

YEAR MONTH

DATE

FACTORY ID NO.

(3) Drum unit: Printed on the bar code label attached inside the drum unit

PRODUCTION LINE NO.

A 3 9 5 1 0 0 1 0 4 A

MONTH

YEAR

TONER VOLUME

FACTORY ID NO.

SERIAL NO.

PRODUCT LINE NO.

1-16

MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN

SERVICE MANUAL

(4) Toner cartridge: Imprinted on the aluminum bag

3 A 3 0 J

Printed on the bar code label attached on the toner cartridge

CARTRIDGE PRODUCTION INFO.

(5) Laser unit: On the laser unit

YEAR

MONTH

DATE

FACTORY ID NO.

M 3 9 A 0 0 0 1 9 9 A

YEAR

FACTORY ID NO.

SERIAL NO.

TONER VOLUME

PRODUCT LINE NO.

2 8 0 0 1

LASER UNIT NO. 8: LJ7516001 Las er Uni t ZL2

FACTORY ID NO.

PRODUCTION LOT NO.

1: Kariya Plant 2: Buji Nan Ling Factory

1-17

+ 332 hidden pages