Brother HL2000 Service Manual

Brother Laser Printer

SERVICE MANUAL

MODEL:

HL-2030/2040/2070N

Read this manual thoroughly before maintenance work.

Keep this manual in a convenient place for quick and easy reference at all times.

November 2004
SM-PRN054

Confidential



© Copyright Brother Industries, Ltd. 2004
All rights reserved.
No part of this publication may be reproduced in any form or by any means without permission

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, Macintosh and TrueType are registered trademarks of Apple

Computer, Inc in the United States and other countries.
Epson is a registered trademark and FX-80 and FX-850 are trademarks of Seiko Epson

Corporation.
Hewlett Packard is a registered trademark and HP LaserJet 6P, 6L, 5P, 5L, 4, 4L 4P, III, IIIP,

II, and IIP are trademarks of Hewlett-Packard Company.
IBM, IBM PC, and Proprinter are registered trademarks of International Business Machines

Corporation.
Microsoft, MS-DOS, Windows and Windows NT are registered trademarks of Microsoft

Corporation in the U.S. and other countries.
ENERGY STAR is a U.S. registered mark.
Citrix and MetaFrame are registered trademarks of Citrix Systems, Inc. in the United State.
All other terms and brand and product names mentioned in this Service Manual are registered

trademarks of their respective companies.

Confidential

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PREFACE

This service manual contains basic information required for after-sales service of the laser
printer (hereinafter referred to as "this machine" or "the printer"). This information is vital to
the service technician to maintain the high printing quality and performance of the printer.

This service manual covers the HL-2030/2040/2070N printers.

This manual consists of the following chapters:

CHAPTER 1: GENERAL

Features, specifications, etc.

CHAPTER 2: INSTALLATION AND BASIC OPERATION

Installation conditions, Installation procedures, basic operation of the
printer etc.

CHAPTER 3: THEORY OF OPERATION

Basic operation of the mechanical system, the electrical system and the
electrical circuits and their timing information.

CHAPTER 4: DISASSEMBLY AND RE-ASSEMBLY

Procedures for disassembling and re-assembling the mechanical
system.

CHAPTER 5: PERIODIC MAINTENANCE

Periodical replacement parts, consumable parts, etc.

CHAPTER 6: ADJUSTMENTS AND UPDATING OF SETTING, REQUIRED AFTER

PARTS REPLACEMENT

CHAPTER 7: TROUBLESHOOTING

Reference values and adjustments, troubleshooting image defects,
troubleshooting malfunctions, etc.

CHAPTER 8: SERVICE SUPPORT SOFTWARE

Test print mode and Service menu mode, etc.

APPENDICES: PCB circuit diagrams, etc.

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.

i Confidential

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TABLE OF CONTENTS

REGULATION............................................................................................. vii

SAFETY INFORMATION ............................................................................. ix

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

1. FEATURES............................................................................................................. 1-1

2. OVERVIEW ............................................................................................................ 1-3

3. SPECIFICATIONS .................................................................................................. 1-4

3.1 Printing ............................................................................................................................. 1-4

3.2 Functions ..........................................................................................................................1-5

3.3 Electronics and Mechanics............................................................................................... 1-6

3.4 Service Information........................................................................................................... 1-7

3.5 Network Connectivity........................................................................................................1-8

3.6 Paper ................................................................................................................................1-9

3.6.1 Feedable paper ................................................................................................................... 1-9

3.6.2 Paper tray capacity............................................................................................................1-11

3.6.3 Print delivery......................................................................................................................1-11

3.7 Printable Area.................................................................................................................1-12

3.7.1 PCL5e/EPSON/IBM emulation..........................................................................................1-12

3.7.2 PCL6 emulation.................................................................................................................1-15

3.8 Print Speeds with Various Settings ................................................................................ 1-16

3.9 Toner Cartridge Weight Information ............................................................................... 1-17

4. SERIAL NO. DESCRIPTIONS.............................................................................. 1-18

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

1.3 System Requirements for Brother Printer Solution ..........................................................2-2

2. UNPACKING........................................................................................................... 2-3

3. INSTALL THE PRINTER......................................................................................... 2-4

3.1 For All Users.....................................................................................................................2-4

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

3.1.2 Load paper in the paper tray ............................................................................................... 2-5

3.1.3 Print a test page .................................................................................................................. 2-6

3.2 For Windows® Users ........................................................................................................ 2-7

3.3 For Macintosh Users ......................................................................................................2-11

4. PRINTING METHODS.......................................................................................... 2-13

4.1 Printing on Plain Paper, Recycled Paper or Transparencies from the Paper Tray ........2-13

4.2 Printing on Plain Paper, Recycled Paper, Bond Paper and Transparencies from

the Manual Feed Slot..................................................................................................... 2-13

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HL-2030/2040/2070N SERVICE MANUAL

4.3 Printing on Thick Paper, Card Stock, Labels, and Envelopes from the Manual Feed Slot

........................................................................................................................................2-15

4.4 Duplex Printing ............................................................................................................... 2-17

4.5 Paper Orientation for Manual Duplex Printing ................................................................ 2-20

5. CONTROL PANEL OPERATION.......................................................................... 2-21

5.1 Control Panel Button & LED Functions (Printer Status) .................................................2-21

5.1.1 Control panel button..........................................................................................................2-21

5.1.2 LEDs .................................................................................................................................2-21

5.2 LED Indications .............................................................................................................. 2-22

5.3 Service Call Indications ..................................................................................................2-24

5.4 Control Panel Button (Go button) ................................................................................... 2-25

5.5 Other Control Features...................................................................................................2-25

5.5.1 Print a test page ................................................................................................................ 2-25

5.5.2 Print a printer settings page .............................................................................................. 2-26

5.5.3 Print fonts (For HL-2070N)................................................................................................2-26

6. NETWORK FUNCTIONS (FOR HL-2070N) .......................................................... 2-27

6.1 LED Functions ................................................................................................................ 2-27

6.2 Network Factory Default Setting (For HL-2070N)........................................................... 2-27

6.3 Network Factory Default Setting with APIPA Protocol Disabled (For HL-2070N) .......... 2-28

7. OPTIONAL PRINT SERVER................................................................................. 2-29

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 interface ......................................................................................................................3-5

1.3.3 IEEE 1284 interface ............................................................................................................3-6

1.3.4 Network interface ................................................................................................................3-8

1.3.5 ROM....................................................................................................................................3-9

1.3.6 SDRAM ............................................................................................................................. 3-11

1.3.7 EEPROM........................................................................................................................... 3-13

1.3.8 Reset circuit ......................................................................................................................3-13

1.3.9 Panel I/O ...........................................................................................................................3-14

1.3.10 Video I/O ........................................................................................................................... 3-15

1.3.11 Power supply..................................................................................................................... 3-16

1.4 Power Supply..................................................................................................................3-17

1.4.1 Low-voltage power supply................................................................................................. 3-17

1.4.2 High-voltage power supply................................................................................................3-18

2. MECHANICS ........................................................................................................ 3-19

2.1 Overview of Printing Mechanism .................................................................................... 3-19

2.2 Paper Transfer ...............................................................................................................3-20

2.2.1 Paper supply ..................................................................................................................... 3-20

2.2.2 Push-up function of paper tray .......................................................................................... 3-22

2.2.3 Paper registration..............................................................................................................3-24

2.2.4 Paper eject ........................................................................................................................ 3-25

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2.3 Drum Unit ....................................................................................................................... 3-25

2.3.1 Exposure drum..................................................................................................................3-25

2.3.2 Primary charger.................................................................................................................3-25

2.3.3 Transfer roller....................................................................................................................3-25

2.3.4 Cleaner..............................................................................................................................3-25

2.4 Toner Cartridge .............................................................................................................. 3-26

2.4.1 Toner life end mode ..........................................................................................................3-26

2.4.2 New toner detection mechanism.......................................................................................3-27

2.4.3 Counter reset during indication of “Toner Life End” .......................................................... 3-28

2.5 Print Process .................................................................................................................. 3-29

2.5.1 Charging............................................................................................................................3-29

2.5.2 Exposure stage .................................................................................................................3-29

2.5.3 Developing ........................................................................................................................ 3-30

2.5.4 Transfer.............................................................................................................................3-31

2.5.5 Fixing stage.......................................................................................................................3-31

2.6 Sensors .......................................................................................................................... 3-32

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/Tone ASSY .............................................................................................................4-3

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

3.4 Rear Cover ....................................................................................................................... 4-5

3.5 Rear Chute Cover.............................................................................................................4-6

3.6 Side Cover L.....................................................................................................................4-7

3.7 Side Cover R .................................................................................................................... 4-7

3.8 Top Cover / Paper Stopper............................................................................................... 4-8

3.9 Front Cover..................................................................................................................... 4-10

3.10 Pickup Roller Holder ASSY ............................................................................................ 4-11

3.11 Fixing Unit....................................................................................................................... 4-15

3.12 High-Voltage PS PCB ASSY ..........................................................................................4-21

3.13 Main PCB ....................................................................................................................... 4-22

3.14 SW Key / Panel PCB ...................................................................................................... 4-24

3.15 PS PCB Unit ................................................................................................................... 4-25

3.16 Laser Unit ....................................................................................................................... 4-28

3.17 Sub Chute ASSY ............................................................................................................ 4-30

3.18 Link Lever .......................................................................................................................4-31

3.19 Tail Edge Actuator .......................................................................................................... 4-32

3.20 Regist Front Actuator / Regist Front Spring.................................................................... 4-32

3.21 Regist Sensor PCB ASSY .............................................................................................. 4-33

3.22 Regist Rear Actuator / Regist Rear Spring..................................................................... 4-33

3.23 Fan Motor 60 Unit ........................................................................................................... 4-34

3.24 Toner LED PCB ASSY / LED Holder.............................................................................. 4-35

3.25 New Toner Actuator / New Toner Actuator Spring ......................................................... 4-36

3.26 New Toner Sensor.......................................................................................................... 4-36

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HL-2030/2040/2070N SERVICE MANUAL

3.27 Cover Sensor................................................................................................................. 4-37

3.28 Toner Sensor PCB ASSY..............................................................................................4-37

3.29 Main Motor ASSY...........................................................................................................4-38

3.30 Develop Joint .................................................................................................................4-40

3.31 P/R Solenoid ASSY........................................................................................................4-40

3.32 F/R Solenoid ASSY........................................................................................................ 4-41

3.33 Main Frame L................................................................................................................. 4-43

3.34 Main Frame R ................................................................................................................4-44

4. PACKING ................................................................................................................4-45

5. LUBRICATION ........................................................................................................4-46

6. GUIDELINES FOR LEAD FREE SOLDER..............................................................4-47

7. SCREW TORQUE LIST ..........................................................................................4-50

8. HARNESS ROUTING..............................................................................................4-51

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

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

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

1.2 Toner Cartridge................................................................................................................ 5-4

2. PERIODICAL REPLACEMENT PARTS....................................................................5-9

3. PERIODICAL CLEANING........................................................................................5-10

3.1 Cleaning the Inside of the Printer .................................................................................. 5-10

3.2 Cleaning the Corona Wire..............................................................................................5-10

3.3 Cleaning the Scanner Window ...................................................................................... 5-11

3.4 Cleaning the Electrical Terminals.................................................................................. 5-12

CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT.................. 6-1

1. IF YOU REPLACE THE MAIN PCB ..........................................................................6-1

CHAPTER 7 TROUBLESHOOTING....................................................... 7-1

1. INTRODUCTION.......................................................................................................7-1

1.1 Initial Check......................................................................................................................7-1

1.2 Warnings for Maintenance Work .....................................................................................7-2

1.3 Identify the Problem......................................................................................................... 7-3

2. OPERATOR CALLS & SERVICE CALLS..................................................................7-4

2.1 Operator Calls.................................................................................................................. 7-4

2.2 Service Calls.................................................................................................................... 7-5

3. ERROR MESSAGE...................................................................................................7-6

3.1 List of Error Message.......................................................................................................7-6

3.2 Error Message in the Status Monitor............................................................................... 7-7

3.3 Error Message Printouts.................................................................................................. 7-8

4. PAPER PROBLEMS..................................................................................................7-9

4.1 Paper Loading Problems ................................................................................................. 7-9

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4.2 Paper Jams.................................................................................................................... 7-10

4.2.1 Clearing jammed paper..................................................................................................... 7-10

4.2.2 Causes & countermeasures.............................................................................................. 7-14

4.3 Paper Feeding Problems............................................................................................... 7-15

5. SOFTWARE SETTING PROBLEMS.......................................................................7-17

6. MALFUNCTIONS ....................................................................................................7-20

7. IMAGE DEFECTS ...................................................................................................7-26

7.1 Image Defect Examples................................................................................................. 7-26

7.2 Diameter of Rollers ........................................................................................................7-26

7.3 Troubleshooting Image Defect....................................................................................... 7-27

7.4 Location of Grounding Contacts.................................................................................... 7-44

7.4.1 Drum unit ..........................................................................................................................7-44

7.4.2 Printer body & Paper tray.................................................................................................. 7-44

8. INCORRECT PRINTOUT........................................................................................7-45

9. NETWORK PROBLEM............................................................................................7-47

9.1 Installation Problem ....................................................................................................... 7-47

9.2 Printing Problem.............................................................................................................7-48

9.3 Protocol-Specific Troubleshooting.................................................................................7-49

CHAPTER 8 SERVICE SUPPORT SOFTWARE.................................... 8-1

1. CONTROL PANEL ....................................................................................................8-1

1.1 User Mode........................................................................................................................8-1

1.2 User Maintenance Mode..................................................................................................8-3

1.3 Service Mode...................................................................................................................8-4

2. HOW TO USE THE SELF-DIAGNOSTICS TOOLS ................................................8-12

2.1 Diagnostics.....................................................................................................................8-12

2.2 Printer Information .........................................................................................................8-14

3. NVRAM DEFAULT VALUE......................................................................................8-15

APPENDICES

1. MAIN PCB CIRCUIT DIAGRAM, HL-2030/2040 (1/3).............................................. A-1

2. MAIN PCB CIRCUIT DIAGRAM, HL-2030/2040 (2/3).............................................. A-2

3. MAIN PCB CIRCUIT DIAGRAM, HL-2030/2040 (3/3).............................................. A-3

4. MAIN PCB CIRCUIT DIAGRAM, HL-2070N (1/3).................................................... A-4

5. MAIN PCB CIRCUIT DIAGRAM, HL-2070N (2/3).................................................... A-5

6. MAIN PCB CIRCUIT DIAGRAM, HL-2070N (3/3).................................................... A-6

7. POINT TO POINT CONNECTION DIAGRAM.......................................................... A-7

8. LOW-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (100V).................... A-8

9. LOW-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (200V).................... A-9

10. HIGH-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM............................. A-10

11. REPLACEMENT OF PINCH SPRING L ALL AND PINCH SPRING R ALL........... A-11

12. LOCATION OF COVER SPONGE L1 AND COVER SPONGE.............................. A-12

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HL-2030/2040/2070N SERVICE MANUAL

REGULATION

LASER SAFETY (100 - 120V MODEL ONLY)

This printer is certified as a Class 1 laser product under the U.S. 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 protective housings
and external covers, the laser beam cannot escape from the machine during any phase of
user operation.

FDA REGULATIONS (100 - 120V MODEL ONLY)

U.S. 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

C

MANUFACTURED:
Brother Industries, Ltd.,

15-1 Naeshiro-cho Mizuho-ku Nagoya, 467-8561 Japan
This product complies with FDA performance standards
for laser products except for deviations pursuant to Laser
Notice No.50, dated July 26, 2001.

The label for Chinese manufactured products

MANUFACTURED:
Brother Corporation (Asia) Ltd. Brother Buji Nan Ling
Factory

Gold Garden Ind., Nan Ling Village, Buji, Rong Gang,
Shenzhen, CHINA
This product complies with FDA performance standards
for laser products except for deviations pursuant to Laser
Notice No.50, dated July 26, 2001.

Caution

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

vii Confidential

IEC 60825 (220-240V MODEL ONLY)

This printer is a Class 1 laser product as defined in IEC 60825 specifications. The label
shown below is attached in countries where it is required.

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

1.

Internal laser radiation

Maximum radiation power: 5 mW

Wave length: 770 – 810 nm

Laser class: Class 3B

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HL-2030/2040/2070N SERVICE MANUAL

SAFETY INFORMATION

CAUTION FOR LASER PRODUCT (WARNHINWEIS FUR LASER DRUCKER)

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

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

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

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

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

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

<Location of the laser beam window>

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.

ix Confidential

DEFINITIONS OF WARNINGS, CAUTIONS AND NOTES

The following conventions are used in this 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.

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CHAPTER 1 GENERAL

1. FEATURES

This printer has the following features.

High Resolution and Fast Print Speed

True 600 x 600 dots/ true 300 x 300 dots per inch (dpi) and HQ1200 for graphics with microfine
toner and up to 16 (HL-2030)/ 20 (HL-2040/2070N) pages per minute (ppm) print speed for A4
and 17 (HL-2030)/ 20 (HL-2040/2070N) pages per minute (ppm) print speed for Letter- size
paper.

Versatile Paper Handling

The printer loads paper automatically from the paper tray. The paper tray can hold A4, letter,
B5 (ISO), B5 (JIS), A5, B6 (ISO), A6, Executive, Folio and Legal* size of paper. The manual
feed slot allows manual paper loading sheet by sheet so you can use a variety of types and
sizes of paper. *Legal paper is not available in some regions.

HL-2030/2040/2070N SERVICE MANUAL

Front Operation

Basic operation of the printer can be controlled from the control panel.



Enhanced Printing Performance and User-Friendly Operation for Windows



The dedicated printer driver for Microsoft
Windows
install them into your Windows



2000/XP are available on the CD-ROM supplied with your printer. You can easily



system using our installer program. The driver supports our

unique compression mode to enhance printing speed in Windows

Windows 95/98/Me, Windows NT 4.0 and



applications and allows you
to choose various printer settings including toner save mode, custom paper size, sleep mode,
gray scale adjustment, resolution, water mark and many layout functions. You can easily setup
these print options through the Printer Setup Menu.

Printer Status Monitor with Bi-directional Parallel Interface (For HL-2040/2070N)

The printer driver can monitor the status of your printer using bi-directional parallel
communications. IEEE-1284 bi-directional parallel printer cable is recommended.

The printer status monitor program can show the current status of your printer. When printing,
the animated dialog box appears on your computer screen to show the current printing
process. If an error occurs, a dialog box will appear to let you know what to correct. If you
have turned on the Interactive Help (Windows only) you can get visual guidance on your PC
screen on the actions in the event of certain printer errors. The default setting is OFF.

Quick Print Setup

The Quick Print Setup is a convenient utility to allow you to make changes to frequently used
driver settings easily without having to open the printer properties selection box every time. It
is launched automatically when this printer driver is selected. You can change the settings by
clicking on the icon with the right mouse button. The default setting is OFF.

Enhanced Memory Management

The printer provides its own data compression technology in its printer hardware and the
supplied printer driver software, which can automatically compress graphic data and font data
efficiently into the printer’s memory. You can avoid memory errors and print most full pages
600 dpi graphic and text data, including large fonts, with the standard printer memory.

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CHAPTER 1 GENERAL

USB Interface (for Windows



98/Me/2000/XP, Mac OS



9.1-9.2/ Mac OS



X 10.2.4 or

greater)

The printer can be connected using the Universal Serial Bus (USB) interface to a PC or Mac
which has a USB interface. Drivers that allow you to use the USB port are provided on the CD­ROM supplied with the printer.

Popular Printer Emulation Support

These printers support the following printer emulation modes.
HL-2030/2040: GDI
HL-2070N: HP LaserJet (PCL6), Epson FX-850 and IBM Proprinter XL.

Environment-Friendly

<Economy Printing Mode>
This feature will cut your printing cost by saving toner. It is useful for obtaining draft copies for

proof-reading. You can select the toner saving economy mode through the Windows



printer

driver supplied with your printer.

<Sleep Mode (Power Save Mode)>
Sleep mode automatically reduces power consumption when the printer is not in use for a

certain period of time. The printer consumes less than 5W (HL-2030/2040) or 7W (HL-2070N)
when in sleep mode.

<Low Running Cost>
Since the toner cartridge is separate from the drum unit, you need to replace only the toner

cartridge after printing around 2,500 (Standard toner cartridge) pages at 5% coverage for A4
paper for the standard cartridge, which is both cost effective and ecologically friendly.

Bar Code Print (for HL-2070N only)

The printer can print the following 11 types of bar codes

• Code 39 • US-PostNet • EAN-8

• Code 128 • ISBN • EAN-13

• Interleaved 2 of 5 • UPC-A • EAN-128

• Codabar • UPC-E

Network Feature (for HL-2070N only)

The Brother printer has built in multi protocol network capability as standard. This allows
multiple host computers to share the printer on a 10/100Mbps Ethernet network. Any users
can print their jobs as if the printer was directly connected to their computer. Users on
Windows

®

95/98/Me, Windows® NT4.0, Windows® 2000/XP, Mac OS® 9.1 to 9.2, Mac OS® X

10.2.4 or greater simultaneously can access this printer. For further information, see the
Network User’s Guide supplied with the printer.

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2. OVERVIEW

A

<Front View>

HL-2030/2040/2070N SERVICE MANUAL

Face-down Output Tray

Control Panel

Face-down Output Tray
Support Flap
(Support Flap)

Manual Feed Slot

<Rear View>

Manual Feed Paper Guides

*The printer illustration is based on HL-2070N.

Paper Tray

Fig. 1-1

Power Switch

Front Cover

USB Interface Connector

Back Cover

LED
(Light-emitting Diode)
(HL-2070N)

C Power

Connector

Parallel Interface Connector
(HL-2040 and HL-2070N)

Side cover

10/100Baser TX Port
(HL-2070N)

*The printer illustration is based on HL-2070N.

Fig. 1-2

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CHAPTER 1 GENERAL

3. SPECIFICATIONS

3.1 Printing

Print method Electrophotography by semiconductor laser beam scanning

Laser Wavelength: 760 - 810nm

Output: 5mW max

Resolution

Windows® 95 and
WindowsNT

Windows®98/Me,
Windows
Windows

DOS

Mac OS

Linux

®

4.0

®

2000 and

®

XP

®

HL-2030 HL-2040 HL-2070N

N/A HQ1200/ 600dpi/ 300dpi

HQ1200/ 600dpi/ 300dpi

N/A 600dpi

HQ1200/ 600dpi/ 300dpi

600dpi/ 300dpi

Print quality Normal printing mode
Economy printing mode (Toner saving mode)

Print speed Normal

<HL-2030>

Up to 16 pages/minute (A4)

Up to 17 pages/minute (Letter-size paper)

<HL-2040/ HL-2070N>
Up to 20 pages/minute (A4)

Up to 20 pages/minute (Letter-size paper)

Warm-up Max. 18 seconds at 23°C (73.4°F)

First print Less than 10 seconds when the printer is in the ready state.

(when loading A4 or Letter-size paper from the standard paper tray)

Consumables <Toner cartridge>
Life expectancy:
Starter 1,500 pages / cartridge
Standard 2,500 pages / cartridge

* when printing A4 or Letter-size paper at 5% print coverage.

<Drum unit>

Life expectancy: 12,000 A4 or Letter pages/drum unit

NOTE:

Print speed varies depending on the paper size or media type. For details, refer to 3.8 ‘Print

Speeds with Various Settings’ in this chapter.

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3.2 Functions

CPU HL-2030/ HL-2040: Fujitsu SPARClite 96MHz

HL-2070N: Fujitsu SPARClite 133MHz

Emulation HL-2030/2040: GDI
HL-2070N: HP LaserJet (PCL)
EPSON FX-850 or IBM Proprinter XL

Printer driver <HL-2030>

HL-2030/2040/2070N SERVICE MANUAL

GDI Driver for Windows® 98/Me, Windows® 2000 and Windows® XP

•

Brother Laser Driver for Mac OS® 9.1 to 9.2 and Mac OS® X 10.2.4 or

•

greater
GDI Printer Driver for Linux

•

<HL-2040>

•

GDI Driver for Windows® 95/98/Me, Windows NT® 4.0, Windows® 2000
and Windows® XP
Brother Laser Driver for Mac OS® 9.1 to 9.2 and Mac OS® X 10.2.4 or

•

greater
GDI Printer Driver for Linux

•

< HL-2070N >

PCL Driver for Windows® 95/98/Me, Windows NT® 4.0, Windows® 2000

•

and Windows® XP
Generic PCL Driver for Windows NT® 4.0, Windows® 2000 and

•

Windows® XP

Brother Laser Driver for Mac OS® 9.1 to 9.2 and Mac OS® X 10.2.4 or

•

greater
GDI Printer Driver for Linux

•

Interface Standard:

HL-2030 HL-2040 HL-2070N

Full-Speed USB 2.0 Full-Speed USB 2.0

IEEE 1284 Parallel

Full-Speed USB 2.0
IEEE 1284 Parallel,
10/100 BASE-TX

Option:

HL-2030 HL-2040 HL-2070N

IEEE 802.11b
wireless
(NC-2200w)

IEEE 802.11b
wireless
(NC-2200w)
10/100 BASE-TX
(NC-2100p)

IEEE 802.11b
wireless
(NC-2200w)

Utilities HL-2030/2040: Interactive Help*
HL-2070N: Interactive Help, Driver Deployment Wizard*

* Interactive Help: Instructional animations for problem solving.
* The Driver Deployment Wizard automates the installation of a printer

in a peer-to-peer network.

Memory HL-2030/2040: 8 Mbytes
HL-2070N: 16 Mbytes
Option: N/A

Control Panel • Display LED: 4 LEDs

• Button 1 button

Diagnostics Self-diagnostic program

Resident Fonts HL-2030/2040: N/A

HL-2070N: 49 scalable fonts, 12 bitmap fonts, 11 bar codes;
Code39, Interleaved 2 of 5, EAN-8, EAN-13, UPC-A, EAN-128,

Codabar, FIM (US-PostNet), ISBN, Code128

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CHAPTER 1 GENERAL

3.3 Electronics and Mechanics

Power source U.S.A. and Canada: AC 110 to 120V, 50 Hz/60 Hz

Europe and Australia: AC 220 to 240V, 50 Hz/60 Hz

Power consumption Printing: Less than 450 W at 25°C (77°F)
(average) Standing by: Less than 70 W at 25°C (77°F)
Sleep: Less than 5 W (HL-2030/2040)
Less than 7 W (HL-2070N)

Noise <Sound pressure>
Printing: Less than 51dB (A)
Standing by: Less than 30dB (A)

<Sound power>
Printing: 6.2B(A)
(Office equipment with LWAd<6.3B(A) is not suitable for operation in

Standing by; 4.3B(A)

Temperature Operating: 10 to 32.5°C (50 to 90.5°F)
Non operating: 0 to 40°C (38 to 104°F)
Storage: -20 to 40°C (-4 to 104°F)

rooms where predominantly intellectual work is done. Due to there
noise emissions, these devices should be separate rooms.)

Humidity Operating: 20 to 80% (non condensing)
Storage: 10 to 85% (non condensing)

Dimensions 371 x 361 x 165.5 mm
(W x D x H) (14.6 x 14.2 x 6.5 inches)

Weight Approximately 5.4 kg (12.0lb) not including the drum unit and toner

cartridge.

Approximately 6.5 kg (14.3lb) including the drum unit and toner

cartridge

NOTE:

The power consumption figure quoted for sleep mode is when the fan has stopped.

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3.4 Service Information

These are key service information to maintain the product.

Machine Life: 50,000 pages/ 5 years
MTBF (Meantime between failure): Up to 4,000 hours
MTTR (Meantime to repair): Average 30 minutes
Monthly volume: 10,000 pages
Periodical replacement parts:
There is no periodical replacement part that needs to be replaced periodically to maintain the

product quality.

HL-2030/2040/2070N SERVICE MANUAL

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CHAPTER 1 GENERAL

3.5 Network Connectivity

<Standard>
Type/Speed 10/100 Base TX Ethernet

Automatic negotiation

Protocols TCP/IP (APR, RARP, BOOTP, DHCP, APIPA (Auto IP), NetBIOS

Management Tool • Web Based Management (HTTPD)

• BRAdmin Professional

• Web BRAdmin

Supplied software • BRAdmin Professional utility (for Windows

• Web BRAdmin (Windows

W eb BRAdmin is NOT supplied with CD-ROM. Available only on

Name Resolutions, WINS, DNS Resolver, LPR/LPD, Custom Raw
Port/Port9100, SMTP Client, SMB Print, IPP, FTP Server, mDNS,
TELNET, SNMP, HTTP)



4.0/Windows



2000/XP)

Server, Windows





XP Professional)

2000 Professional/ Server/ Advanced

95/98/ME, WindowsNT

Web page. For more information on W eb BRAdmin Professional,
refer to http://solutions.brother.com

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3.6 Paper

3.6.1 Feedable paper

(1) Paper type

HL-2030/2040/2070N SERVICE MANUAL

Paper type

Plain paper

60 g/m2 to 105 g/m
(16 to 28 lbs.)

Recycled paper
Bond paper

Thick paper

105 g/m2 to 161 g/m
(28 to 43 lbs.)

Transparency

Label

Envelop

Card Stock

2

Tray1

Manual feed

slot

Select the paper type from
the printer driver

O O Plain paper

O O Recycled paper
O

2

X

O

Up to 10 sheets

A4 or Letter

X

X O

O Bond paper

O Thick paper or Thicker paper

O

A4 or Letter

O

A4 or Letter

Transparency

Thicker paper
Envelope

or Env.Thick or Env.Thin

X O Thick paper or Thicker paper

(2) Paper size

Paper Tray Manual feed slot

Paper size

A4, Letter, Legal*, B5 (ISO),
Executive, A5, A6, B6 (ISO),
B5 (JIS), Folio*

Width:

69.9 to 215.9 mm
(2.75 to 8.5 in.)
Length:
116 to 406.4 mm
(4.57 to 16.0 in.)

* Legal and Folio are not available in some regions.

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CHAPTER 1 GENERAL

(3) Other paper specifications

<Paper tray>

Basis weight

Caliper

Moisture content

2

60 to 105 g/m

(16 to 28 lb.)

0.08 to 0.12 mm (0.003 to 0.005 in.)

4% to 6% by weight

Cut sheet

<Manual feed slot>

Basis weight

Caliper

Moisture content

2

60 to 161 g/m

(16 to 43 lb.)

0.08 to 0.19 mm (0.003 to 0.007 in.)

4% to 6% by weight

Cut sheet

(4) Recommended paper

Europe USA

Plain paper

Xerox Premier 80 g/m

Xerox Business 80 g/m

2

2

Modo Paper DATACOPY 80 g/m

Xerox 4200DP 20lb

Xerox 4024 28lb

2

Hammermill Laser Paper 24lb

IGEPA X-press 80 g/m2

Recycled paper

Transparency

Label

Xerox Recycled Supreme N/A

3M CG3300 3M CG 3300

Avery laser label L7163 Avery laser label #5160

* This printer can use recycled paper that meets the DIN 19309 specification

CAUTION:

!

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

• 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.

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3.6.2 Paper tray capacity

HL-2030/2040/2070N SERVICE MANUAL

Paper Tray

Paper Capacity

3.6.3 Print delivery

Face down output tray
capacity: Maximum 100 sheets (80 g/m

Note:

Face-down:Delivery with the printed face of the paper downwards.

250 sheets (80 g/m

2

face down only

Manual feed slot

or 21lb) Single sheet

2

)

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CHAPTER 1 GENERAL

3.7 Printable Area

3.7.1 PCL5e/EPSON/IBM emulation

When using PCL emulation, the edges of the paper that cannot be printed on are shown
below.

Portrait

E

G

NOTE:

G

G

C

A

F

Physical page

Printable area

Logical page

E

B

D

G

F

B Physical page length

D

F

Maximum logical page length

Distance from edge of physical page to
edge of logical page

• “Logical page” shows the printable area for a PCL driver.

• “Printable area” shows mechanical printable area of the machine.

• Therefore, the machine can only print within the shaded area when you use a PCL driver.

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HL-2030/2040/2070N SERVICE MANUAL

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

DL

DL L

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)

220.0 mm

8.66”
(2,598 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)

110.0 mm

4.33”
(1.299 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)

207.4 mm

8.17”
(2,450 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)

110.0 mm

4.33”
(1.299 dots)

6.35 mm

0.25”
(75 dots)

Ç

Ç

6.35 mm

0.25”
(75 dots)

6.01 mm

0.24”
(71 dots)

Ç

Ç

Ç

Ç

Ç

6.35 mm

0.25”
(75 dots)

Ç

6.01 mm

0.24”
(71 dots)

Ç

6.27 mm

0.25”
(74 dots)

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

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)

6.27 mm

0.25”
(74 dots)

NOTE:

• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS

except B5 (ISO), B6 (ISO).

• The dot size is based on 300 dpi resolution.

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CHAPTER 1 GENERAL

Landscape

E

G

NOTE:

G

G

F

Physical page

Printable area

E

D

B

G

B Physical page length

D Maximum logical page length

F Distance from edge of physical
page to edge of logical page

F

Logical page

C

A

• “Logical page” shows the printable area for a PCL driver.

• “Printable area” shows mechanical printable area of the machine.

• Therefore, the machine can only print within the shaded area when you use a PCL driver.

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HL-2030/2040/2070N SERVICE MANUAL

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

DL

DL L

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)
110 mm

4.33”
(1,299 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)
220 mm

8.66”
(2,598 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)

97.5 mm

3.84”
(1,151 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)
220 mm

8.66”
(2,598 dots)

5.0 mm

0.2”
(60 dots)

Ç

Ç

5.0 mm

0.2”
(60 dots)

4.8 mm

0.19”
(59 dots)

Ç

Ç

Ç

Ç

Ç

5.0 mm

0.2”
(60 dots)

Ç

4.8 mm

0.19”
(59 dots)

Ç

6.27 mm

0.25”
(74 dots)

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

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)

6.27 mm

0.25”
(74 dots)

NOTE:

• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS

except B5 (ISO), B6 (ISO).

• The dot size is based on 300 dpi resolution.

3.7.2 PCL6 emulation

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

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CHAPTER 1 GENERAL

3.8 Print Speeds with Various Settings

Print speed is up to 16 ppm for A4 size, 17 ppm for Letter size (HL-2030) and 20 ppm (HL­2040/2070N) 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;

<A4 / Letter size>

Media type setting All models

Transparency Up to 16/17 ppm (HL-2030)

Up to 20 ppm (HL-2040/2070N)

Thin Paper Up to 16/17 ppm (HL-2030)

Up to 20 ppm (HL-2040/2070N)

Plain Paper,
Recycled Paper

Thick Paper,
Envelopes, Env.Thin

Thicker/Bond Paper,

Up to 16/17 ppm (HL-2030)
Up to 20 ppm (HL-2040/2070N)

10 ppm (HL-2030)
10 ppm (HL-2040/2070N)

4 ppm *

Env.Thick

<Smaller size than A4 or Letter>

Media type setting All models

Transparency Up to 16/17 ppm (HL-2030)

Up to 20 ppm (HL-2040/2070N)

Thin Paper Up to 16/17 ppm (HL-2030)

Up to 20 ppm (HL-2040/2070N)

Plain Paper,
Recycled Paper

300sec. 16/17 ppm Æ 8 ppm (HL-2030)
300sec. 20 ppm Æ 8 ppm (HL-2040/2070N)

Env.Thin 300sec. 10 ppm Æ 8 ppm (HL-2030)

300sec. 10 ppm Æ 8 ppm (HL-2040/2070N)

Thick Paper,
Envelopes

30sec. 10 ppm Æ 8 ppm (HL-2030)
30sec. 10 ppm Æ 8 ppm (HL-2040/2070N)

Thicker/Bond Paper,

4 ppm *

Env.Thick

NOTE:

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

• 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.

• The actual print speed varies depending on the paper size.

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HL-2030/2040/2070N SERVICE MANUAL

3.9 Toner Cartridge Weight Information

Toner Cartridge Weight (approximate weight)

Brand new Toner Cartridge Weight 630g 570g
Toner Weight at Brand New Toner Cartridge 100g 100g
Toner Cartridge Weight at Toner Near Empty 576g 516g
Remain Toner Weight at Toner Near Empty 46g 46g
Toner Cartridge Weight at Toner Life End 574g 516g
Remain Toner Weight at Toner Life End 44g 44g

TN2000 only

TN350 / TN2050 /

TN2025

You can print 500 pages (± 100 pages) with 10g toner. (5% coverage)

NOTE:

• Without yellow protector

• Toner cartridge weight may vary within 2 to 3g depending on the cartridge weight.

• The weight of the starter toner cartridge is as follows,

For TN2000 model, the starter toner cartridge weight is 610g, and the toner weight is 80g.
For TN350, TN2050 and TN2025 models, the starter toner cartridge weight is 550g, and

the toner weight is 80g.

• The weight difference between TN2000 and other models is the weight difference of the

developing roller. The weight of TN2000 will be the same with TN350 from summer in

2005.

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CHAPTER 1 GENERAL

4. SERIAL NO. DESCRIPTIONS

The descriptions below show how to understand the meanings of the numbers printed on the
labels or bag of the printer and printer 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 >

4: 2004 5: 2005

< ID for factory >

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

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

<Example>

(2) Process unit: Imprinted on the aluminum bag

<MODEL NO.>

< SERIAL NO. >

U 5 2 6 8 2 A 3 J 1 1 1 1 0 1

SEQUENTIAL NO.

FACTORY ID NO.

YEAR

MONTH

(Drum unit with toner cartridge)

3 A 1 1 J A

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

YEAR

MONTH

PRODUCTION LINE NO.

FACTORY ID NO.

DATE

A 3 J 5 1 0 0 1 0 4 A

MONTH

YEAR

FACTORY ID NO.

TONER VOLUME

SERIAL NO.

PRODUCTION LINE NO.

DR/TN REUSE
The first time: M
The second time: N
The third time: P

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HL-2030/2040/2070N SERVICE MANUAL

A

(4) Toner cartridge: Imprinted on the aluminum bag

3 A 3 0 J A

YEAR

MONTH

PRODUCTION LINE NO.

FACTORY ID NO.

DATE

Printed on the bar code label attached on the toner cartridge

CARTRIDGE
PRODUCTION INFO.

M 3 J L 0 0 0 1 9 9 A

MONTH

YEAR

FACTORY ID NO.

SERIAL NO.

TONER VOLUME
L: 80g
M: 100g

PRODUCTION LINE NO.

DR/TN REUSE
The first time: M
The second time: N
The third time: P

(5) Laser unit: On the laser unit

SCA T1 2 1 0000240 51 50

LSU MODEL DISTINCTION

FRAME MANUFACTURE AND MOLD
DISTINCTION
T1: THE 1st MOLD
Y3: THE 3rd MOLD

POLYGON MOTOR DISTINCTION
1: SHINANO KENSHI CO., LTD
2: MATSUSHITA ELECTRIC INDUSTRIAL CO.
3: JVC
4: SAMSUNG

DJUSTED VALUE

SERIAL NUMBER OF INSPECTION MACHINE

INSPECTION MACHINE

1-19

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HL-2030/2040/2070N SERVICE MANUAL

CHAPTER 2 INSTALLATION AND BASIC OPERATION

1. CONDITIONS REQUIRED FOR INSTALLATION

1.1 Power Supply

• The source voltage must stay within ±10% of the rated voltage shown on the rating plate.

• The power cord, including extensions, should not exceed 5 meters (16.5 feet).

• Do not share the same power circuit with other high-power appliances, particularly an air

conditioner, copier or shredder. If it is unavoidable that you must use the printer with these
appliances, it is recommended that you use an isolation transformer or a high-frequency
noise filter.

• Use a voltage regulator if the power source is not stable.

1.2 Environment

• Setup the printer near a power outlet, so that it can be easily unplugged from the power

outlet if there is an emergency.

• The room temperature is maintained between 10°C and 32.5°C. The relative humidity is

maintained between 20% and 80%.

• The printer should be used in a well-ventilated room.

• Place the printer on a flat, horizontal surface.

• Keep the printer clean. Do not place the printer in a dusty place.

• Do not place the printer where the ventilation hole of the printer is blocked. Keep

approximately 100 mm (4 inches) between the ventilation hole and the wall.

• Do not place the printer where it is exposed to direct sunlight. Use a blind or a heavy

curtain to protect the printer from direct sunlight when the printer is unavoidably set up near
a window.

• Do not place the printer near devices that contain magnets or generate magnetic fields.

• Do not subject the printer to strong physical shocks or vibrations.

• Do not expose the printer to open flames or salty or corrosive gasses.

• Do not place objects on top of the printer.

• Do not place the printer near an air conditioner.

• Keep the printer horizontal when carrying.

• Do not cover the slots in the side cover.

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

1.3 System Requirements for Brother Printer Solution

Check the following system requirements to setup and operate the printer using Brother
Printing Solution:

Computing System

Operating System Version

95, 98, 98SE 486/ 66MHz 8MB 16MB 40MB

NT

Workstation

Windows



4.0

2000

Professional

Me Pentium 150MHz 32MB 64MB 50MB

XP Pentium 300MHz 128MB 128MB 50MB



9.1 to 9.2

OS

Apple

OS



X 10.2.4

or greater

Processor Speed

Pentium 75MHz 16MB 32MB 50MB

Pentium 133MHz 64MB 128MD 50MB

All base models

meet minimum

system

requirements

Minimum

RAM

32MB

128MB

Recommended

RAM

64MB

160MB

Available

Hard Disk

Space

50MB

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2. UNPACKING

A

When unpacking the printer, check to see that all of the following components are included in
the carton.

HL-2030/2040/2070N SERVICE MANUAL

Printer

Drum Unit Assembly
(including Toner Cartridge)

C power cord

CD-ROM

Fig. 2-1

Quick Setup Guide

NOTE:

Components may vary depending on the country.

Interface cable

An interface cable is not a standard accessory. Please purchase the appropriate cable for the
interface you are going to use (Parallel, USB or Network).

■ Parallel cable (For HL-2040 and HL-2070N)

Most parallel cables support bi-directional communication, but some might have an
incompatible pin assignment or may not be IEEE 1284-compliant. (The Parallel cable is not
available for HL-2030.) Do not use a Parallel interface cable that is longer than 6 feet (2
meters).



■ USB cable (For Windows

98/Me/2000/XP, Mac OS 9.1–9.2/ Mac OS X 10.2.4 or greater

users only)

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



Do not connect the USB cable to a non-powered hub or a Mac

keyboard. Please make sure

that you connect a USB cable to the USB connector of your PC when you use it.

It is recommended to use a USB interface cable that is no longer than 2 meters (6 feet).

■ Network cable (For HL-2070N)

Please use a straight-through Category5 (or greater) twist-pair cable for 10BASE-T or
100BASE-TX Fast Ethernet Network.

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

3. INSTALL THE PRINTER

Install the Printer

You need to implement hardware setup and driver installation to use the printer.

Firstly, identify the Operating System on your computer. (Windows

4.0, Windows® 2000/XP and Macintosh) Then, purchase the appropriate interface cable
(Parallel, USB or Network) for your computer. Most existing parallel cables support bi­directional communication, but some might have an incompatible pin assignment or may not
be IEEE 1284-compliant.

The installation programs for the hardware setup and driver installation are contained on the
supplied CD-ROM.

3.1 For All Users



For Windows

(1) Turn on the PC power. Insert the supplied CD-ROM into the CD-ROM drive. The

opening screen will appear automatically. Select the printer model and the language.

(2) Click the Initial Setup icon on the menu screen.
(3) You can view the Initial Setup instructions.

For Mac OS

users



10.2.4 or greater users

®

95/98/Me, Windows NT

®

(1) Turn on the PC. Insert the CD-ROM into the CD-ROM drive.
(2) Double-click the HL2000 icon on your Desktop. Double-click the Start Here OS X icon.

Follow the on-screen instructions.

(3) Click the Initial Setup icon on the menu screen.
(4) You can view the Initial Setup instructions.



For Mac OS

9.1 to 9.2 users

Go to the next page and follow the instructions.

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3.1.1 Install the drum unit assembly

(1) Open the front cover of the printer.
(2) Unpack the drum unit assembly.
(3) Rock it from side to side several times to distribute the toner evenly inside the assembly.
(4) Put the drum unit assembly in the printer.

(5) Close the front cover of the printer.

3.1.2 Load paper in the paper tray

HL-2030/2040/2070N SERVICE MANUAL

Fig. 2-2

(1) Pull the paper tray completely out of the printer.
(2) While pressing the paper guide release lever, slide the adjusters to fit the paper size.

Check that the guides are firmly in the slots.

Paper guide release lever

Fig. 2-3

NOTE:

For Legal size paper, pull out the back of the paper tray while holding the inside latch of the
tray. (Legal size paper is not available in some regions.)

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

(3) Fan the stack of paper well to avoid paper jams and misfeeds.
(4) Put paper in the paper tray. Check that the paper is flat in the tray and below the

maximum paper mark.

NOTE:

• Paper jams may occur if you put more than 250 sheets (80g/m² or 21 lb) of plain paper in

the paper tray at one time.

• Paper jams may occur if you put more than 10 transparency in the paper tray at one time.

• When you use pre-printed paper, put the side that is going to be printed on (blank side) face

down, with the top of the paper at the front of the tray.

(5) Put the paper tray firmly back in the printer. Check that it is completely in the printer.

3.1.3 Print a test page

Fig. 2-4

(1) Turn off the printer.
(2) Make sure that the front cover is closed and the AC power cord is plugged in.

(3) All LEDs light up, and keep the Go button pressed down until the Ready LED goes off.

Release the Go button. Make sure that the Toner, Drum and Paper LEDs are off.

(4) Press the Go button again. The printer will print a test page.

Fig. 2-5

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HL-2030/2040/2070N SERVICE MANUAL

!

Follow the instructions for your operating system and interface cable type.

3.2 For Windows® Users

For USB interface cable users

CAUTION:

If the “Found New Hardware Wizard” appears on the PC, click the Cancel button.

(1) Make sure the USB interface cable is NOT connected to the printer, and then begin

installing the driver. If you have already connected to the cable, remove it.

(2) Click “Install Printer Driver” on the Menu screen.
(3) Select the USB Cable. Read the license agreement carefully. Follow the on-screen

instructions.

(4) When this screen appears, make sure the printer power switch is on. Connect the USB

interface cable to your PC, and then connect it to the printer. Click the Next button.

Fig. 2-6

(6) Click the Finish button.
For Windows
For Windows

®

98/Me users: The setup is now complete.

®

2000/XP users: Follow the instructions below for setting the PC as the

default printer.

®

For Windows

2000/XP users only (Setting your printer as the default printer.)

(1) Click Start, and then Printers and Faxes.

Fig. 2-7

(2) Select the icon of the appropriate printer.
(3) From the File menu, select Set as Default printer.

®

For Windows

2000/XP users: The setup is now complete.

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

For Parallel Interface Cable users (HL-2040/2070N users)

(1) Click Install Printer Driver on the menu screen.
(2) Select the Parallel interface.
(3) Turn off the printer power switch.
(4) Connect the parallel interface cable to your PC, and then connect it to the printer. Read

the license agreement carefully. Then, follow the on-screen instructions.

(5) Click the Finish button. Turn on the printer power switch. The setup is now complete.

For Network Interface Cable users (for HL-2070N only)

• For connecting the printer to a network, it is recommended to contact the system

administrator prior to installation.

• For the administrator: Configure the printer referring to the following instructions.

1. For the administrator

Install the BRAdmin Professional Configuration Utility (Windows® Users Only)

The BRAdmin Professional software is designed to manage your Brother network connected
devices. For more information on BRAdmin Professional, go to http://solutions.brother.com

(1) Insert the CD-ROM into your CD-ROM drive. The opening screen will appear

automatically. Follow the on-screen instructions.

(2) Click the Install Other Drivers or Utilities icon on the menu screen.
(3) Click BRAdmin Professional. Follow the instructions on the screen.

NOTE:

• The default password for the print server is “access”. You can use the BRAdmin

Professional software or a web browser to change this password.

• Please use the BRAdmin Professional utility version that was supplied on the CD-ROM

with your Brother product. You can also download the latest Brother BRAdmin
Professional utility version from http://solutions.brother.com
Windows

®

users.

. This utility is only available for

• If you are using Personal Firewall software, disable it. Once you are sure that you can

print, re-start your Personal Firewall software.

Setting your IP Address, Subnet Mask and Gateway using BRAdmin Professional
(Windows

®

Users Only)

NOTE:

If you have a DHC/BOOTP/RARP server in your network, you don’t have to do the following
operation. Because the printer server will automatically obtain its IP address.

(1) Start BRAdmin Professional, and select TCP/IP.
(2) Select Search Active Devices from the Devices menu. BRAdmin will search for new

devices automatically.

(3) Double-click the new device.
(4) Enter the IP Address, Subnet Mask and Gateway, and then click the OK button.
(5) The address information will be saved to the printer.

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2. Install the driver

(1) Click Install Printer Driver on the Menu screen.
(2) Select the Network interface.

(3) Turn the printer power switch off.

(4) Connect the cable to your printer, and then connect it to a free port on your hub.

(5) Turn the printer power switch on.

(6) Read the license agreement carefully. Then, follow the on-screen instructions
(7) Select Brother Peer-to-Peer Network Printer, and then click the Next button.

(8) Follow the instructions below depending on it.

For Network shared printer users: Go to 3. For Network shared printer users.
For LPR users: Go to 4. For Brother Peer-to-Peer network printer users (LPR-recommended

Peer-to- Peer printing method)

For NetBIOS users: Go to 5. For Brother Peer-to-Peer network printer users (NetBIOS)

HL-2030/2040/2070N SERVICE MANUAL

3. For Network shared printer users

Install the driver and select the appropriate printer queue or “share name”.
(1) Select the current printer’s queue, and then click the OK button.
(2) Click the Finish button.

(3) The setup is now complete.

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

4. For Brother Peer-to-Peer network printer users (LPR-recommended Peer-to-

Peer printing method)
Configuring the LPR port

(1) Select Search the network for devices and choose from a list of discovered

devices (Recommended). Or enter your printer’s IP address or its node name.
Click the Next button.

Fig. 2-8

NOTE: Contact your Administrator about the Printer’s IP Address.

(2) Select your printer and LPR (Recommended), and then click the Next button.

Fig. 2-9

(3) Click the Finish button.

®

For WindowsNT
For Windows

4.0 and Windows® 2000/XP users: The setup is now complete.

®

95/98/ME users: After your PC has restarted, the setup will be

complete.

5. For Brother Peer-to-Peer network printer users (NetBIOS)

Configuring the NetBIOS port

(1) Select Search the network for devices and choose from a list of discovered

devices (Recommended), and then click the Next button.

(2) Select your printer and NetBIOS, and then select “NetBIOS”. Click the Next button.

(3) Click the Finish button.

®

For WindowsNT
For Windows

complete.

4.0 and Windows® 2000/XP users: The setup is now complete.

®

95/98/ME users: After your PC has restarted, the setup will be

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3.3 For Macintosh Users

HL-2030/2040/2070N SERVICE MANUAL

For USB interface cable users

Connecting the printer to your Macintosh and installing the driver

OS®

<For Mac

X 10.2.4 or greater Users>

(1) Click Install Printer Driver on the Menu screen.
(2) Select the USB interface.
(3) Connect the USB interface cable to your Macintosh, and then connect it to the printer.

NOTE:
Do not connect the USB cable to the keyboard USB Port or a non-powered USB Hub.

(4) Make sure the printer power switch is on.
(5) From the Go menu, select Applications.
(6) Open the Utilities folder.
(7) Open the Printer Setup Utility icon.
(8) Click Add. And select USB.
(9) Select the appropriate printer, and then click the Add button.
(10) From the Printer Setup Utility menu, select Quit Printer Setup Utility.
(11) The Setup is now complete.

OS®

<For Mac

9.1 to 9.2 Users>

(1) Insert the CD-ROM into your CD-ROM drive. Open the Mac OS 9 folder.
(2) Open your language folder.
(3) Double-click the Printer Driver Installer icon to install the printer driver. Follow the on-

screen instructions.
(4) Connect the USB interface cable to your Macintosh, and then connect it to the printer.
(5) Make sure the printer power switch on.
(6) From the Apple menu, open the Chooser.
(7) Click the Brother Laser icon, and then select the appropriate printer. Close the Chooser.
(8) The setup is now complete.

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

For network users (HL-2070N only)

Connect the printer to the Macintosh & install the BR-Script PPD file

OS®

<For Mac

X 10.2.4 or greater Users>

(1) Click Install Printer Driver on the Menu screen.
(2) Click the Network interface and follow the on screen instructions.
(3) Turn off the printer power switch.
(4) Connect the network interface cable to the printer, and then connect it to a free port on

your hub.
(5) Turn on the printer power switch.
(6) From the Go menu, select Applications.
(7) Open the Utilities folder.
(8) Double-click the Printer Setup Utility icon.
(9) Click Add. Make the following selection.
(10) Select Brother HL-2070N series, and the click the Add button.

NOTE:
If there is more than one of the same model printer (HL-2070N) connected on your network,

the Ethernet address (MAC address) will be displayed after the model name.

(11) From the Printer Setup Utility menu, select Quit Printer Setup Utility.
(12) The setup is now complete.

<For Mac OS

®

9.1 to 9.2 Users>

(1) Turn off the printer power switch.
(2) Connect the network interface cable to the printer, and then connect it to a free port on

your hub.
(3) Turn on the printer power switch.
(4) Insert the CD-ROM into your CD-ROM drive. Open the Mac OS 9 folder.
(5) Open your language folder.
(6) Double-click the Printer Driver Installer icon to install the printer driver. Follow the on-

screen instructions.
(7) From the Apple menu, open the Chooser.
(8) Click the Brother Laser (IP) icon, and then select BRN_xxxxxx. Click the Setup…

button.

* xxxxxx are the last six digits of the Ethernet address.

(9) Click the OK button. Close the Chooser. The setup is now complete.

.

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HL-2030/2040/2070N SERVICE MANUAL

!

4. PRINTING METHODS

The printer provides two types of printing method; printing from the paper tray and printing
from the manual feed slot.

4.1 Printing on Plain Paper, Recycled Paper or Transparency from the Paper Tray

You can load plain paper, recycled paper or transparency into the paper tray. If paper is
loaded into the paper tray, the printer automatically feeds paper sheet by sheet and ejects the
printed page into the output tray.

For the details on paper tray loading, refer to subsection 3.1.2 ‘Load paper into the paper tray’

in this chapter and subsection 3.6 ‘Paper’ in Chapter 1.

NOTE:

• It is recommended that lifting up the support flap prevents from sliding off the facedown

output tray. If you choose not to lift up the output tray support flap, we recommend that
you remove printed pages immediately after they come out of the printer.

• Paper jams may occur if you put more than 250 sheets of plain paper in the paper tray at

one time.

• Paper jams may occur if you put more than 10 transparency in the paper tray at one time.

• When you use pre-printed paper, put the side that is going to be printed on (blank side)

face down, with the top of the paper at the front of the tray.

CAUTION:

If you print on transparency, remove each transparency immediately. Stacking the printed
transparency may cause a paper jam or the transparency to curl.

4.2 Printing on Plain Paper, Recycled Paper, Bond Paper and Transparency from the Manual Feed Slot

NOTE:
The printer automatically turns on the Manual Feed mode when you put paper in the manual
feed slot.

(1) Select the Paper Size, Media Type, Paper Source and other settings in the printer driver.
(2) Send the print data to the printer.

NOTE:
A MANUAL FEED status is shown by the control panel LEDs until you put a sheet of paper in

the manual feed slot.

Fig. 2-10

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

(3) Lift up the support flap to prevent paper from sliding off the facedown output tray.

NOTE:

If you choose not to lift up the output tray support flap, we recommend that you remove printed
pages as soon as they come out of the printer.

(4) Using both hands, slide the manual feed slot paper guides to the width of the paper that

you are going to use.

Fig. 2-11

Fig. 2-12

NOTE:

• Put the paper into the manual feed slot with the side to be printed face up.

• Make sure the paper or transparency is straight and in the proper position on the manual

feed slot. If it is not, the paper or the transparency may not be fed correctly, resulting in a
skewed printout or a paper jam.

• Do not put more than one piece of paper in the manual feed slot at one time, or it may
cause a jam.

• If you put any Media (paper, transparency and so on) in the manual feed slot before the
printer is in the ready state, the media may be ejected without being printed on.

(5) Using both hands, put the paper or the transparency into the manual feed slot until its front

edge touches the paper feed roller. Hold the paper or transparency in this position until the
printer automatically feeds it in for a short distance, and then let it go.

Fig. 2-13

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HL-2030/2040/2070N SERVICE MANUAL

!

(6) After the printed page comes out of the printer, put in the next sheet of paper as in Step

(4) above. Repeat for each page that you want to print.

CAUTION:

If you print on transparency, remove each transparency immediately after printing. Stacking
the printed transparency may cause a paper jam or the transparency to curl.

4.3 Printing on Thick Paper, Card Stock, Labels, and Envelopes from the Manual Feed Slot

NOTE:
The printer automatically turns on the Manual Feed mode when you put paper in the manual

feed slot.

(1) Select the Paper Size, Media Type and Paper Source and other settings in the printer

driver.

NOTE:
For envelope users

• When you use Envelope #10, select Com-10 from Paper Size in the printer driver.

• For other envelops which are not in the selection of the printer driver, such as Envelope #9

or Envelope C6, use User Defined… Size.

(2) Send the print data to the printer.

NOTE:
A MANUAL FEED status is shown by the control panel LEDs until you put a sheet of paper or

envelope in the manual feed slot.

Fig. 2-14

(3) Lift up the support flap to prevent paper from sliding off the facedown output tray.

NOTE:

If you choose not to lift up the output tray support flap, we recommend that you remove
printed pages as soon as they come out of the printer.

Fig. 2-15

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

(4) Using both hands, slide the manual feed slot paper guides to the width of the paper that

you are going to use.

(5) Using both hands, put the paper or the envelope into the manual feed slot until the front

edge of the paper touches the paper feed roller. Hold the paper or the envelope in this
position until the printer automatically feeds the paper or the envelope in for a short
distance, and then let it go.

Fig. 2-16

Fig. 2-17

NOTE:

• Put the paper into the manual feed slot with the side to be printed face up.

• Make sure the paper is neatly stacked and in the proper position on the manual feed slot. If

it is not, the paper may not be fed correctly, resulting in a skewed printout or a paper jam.

• Do not put more than one piece of paper in the manual feed slot at one time, or it may
cause a jam.

• If you put any Media (paper, transparency and so on) in the manual feed slot before the
printer is in the ready state, the media may be ejected without being printed on.

(6) After the printed envelope comes out of the printer, the printer will wait until you put in the

next envelope. Repeat Step (5) for each envelope you want to print.

NOTE:

• Envelopes joints that are sealed by the manufacturer should be secure.

• All sides should be properly folded without wrinkles or creases.

CAUTION:

!

Remove each sheet or envelope immediately after printing. Stacking the sheets or envelopes
may cause a paper jam or the paper to curl.

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Printing on envelopes

Use of any of the envelopes listed below may cause damage to the printer.

• Envelopes that are damaged, curled, wrinkled, or unusual shape

• Envelopes that are extremely shiny or highly textured

• Envelopes with clasps, snaps or tie strings

• Envelopes with self-adhesive closures

• Envelopes of baggy construction

• Envelopes that are not sharply creased

• Embossed envelopes

• Envelopes that were previously printed by a laser printer

• Envelopes that are pre-printed on the inside

• Envelopes that cannot be arranged when put in a pile

• Envelopes made of paper that the weighs more than the paper weight specifications for

the printer.

• Envelopes that have been badly made, with edges that are not straight or consistently
square.

• Envelopes with windows, holes, cutouts or perforations.

• If you use any of the types of envelopes listed above, they may damage your

printer. This damage is not covered under any Brother warranty or service
agreement.

HL-2030/2040/2070N SERVICE MANUAL

WARNING

NOTE:

• Before printing on envelopes, fan the stack well to avoid paper jams and misfeeds.

• Do not put different types of paper at the same time in the paper tray because it may cause

paper jams or misfeeds.

• Do not print on envelopes using manual duplex printing.

• For proper printing, you must choose the same paper size from your software application as

the paper in the tray.

• Most envelopes will be suitable for your printer. However, some envelopes will have feed
and print-quality problems because of the way they have been made. A suitable envelope
should have edges with straight, well-creased folds and the leading edge should not be
thicker than two pieces of paper. The envelope should lie flat and not be of baggy or flimsy
construction. You should buy quality envelopes from a supplier who understands that you
will be using the envelopes in a laser printer. Before you print a lot of envelopes, test one to
make sure that the print results are what you want.

• Brother will not recommend a particular envelope because envelope manufacturers may
change the envelope specifications. You are responsible for the quality and performance of
envelopes you use.

4.4 Duplex Printing

The supplied printer drivers for Windows® 95/98/Me, Windows NT® 4.0 and Windows®
2000/XP all allow manual duplex printing.

NOTE:

• If the paper is thin, it may wrinkle.

• If paper is curled, straighten it and then put it back in the paper tray or the manual feed slot.

• If the paper is not feeding properly, it may be curled. Remove the paper and straighten it.

• When you use the manual duplex function, it is possible that there may be paper jams or

poor print quality. If there is a paper jam, see paper jams and how to clear them on 4.2

‘Paper Jams’ in Chapter 7.

• Use plain paper and recycled paper. Do not use bond paper.

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CHAPTER 2 INSTALLATION AND BASIC OPERATION

Printing on both sides of the paper (manual duplex printing)

Manual duplex printing from the paper tray

NOTE:

You should use plain paper or recycled paper. Do not use bond paper.

When printing on both sides of the paper, follow the steps below;

(1) From the Advanced tab choose the Manual Duplex printing mode, and from the Basic

tab choose the Paper Source to be Auto Select or Tray1.

(2) The printer will automatically print all the even-numbered pages on one side of the paper

first.

(3) Remove the printed even-numbered pages from the output tray and put them back in the

paper tray, placing the paper with the side that is going to be printed on (blank side) face
down. Follow the instructions on the computer screen.

(4) The printer will now automatically print all the odd-numbered pages on the other side of the

Note:

When you put paper in the paper tray, first empty the tray then put the printed pages in the
tray, with the printed side face up. (Do not add the printed pages to the top of a stack of
unprinted paper.)



Fig. 2-18

paper.

2-18

Confidential

HL-2030/2040/2070N SERVICE MANUAL

Manual duplex printing from the manual feed slot

NOTE:

You should not use very thin or very thick paper.

CAUTION:

!

* Before you put the sheets back in the manual feed slot, you will have to straighten them, or

you may get paper jams.

* You should not use very thin or very thick paper.

* When you use the manual duplex function, it is possible that there may be paper jams or poor

print quality. If there is a paper jam, see 4. PAPER PROBLEMS in Chapter 7.

(1) From Advanced tab choose the Manual Duplex printing mode, and from the Basic tab

choose the Paper Source to be Manual feed.

(2) Using both hands put the paper in the manual feed slot with the side that is going to be

printed on first facing up. Follow the instructions on the computer screen. Repeat this step
until you have printed all the even-numbered pages.

Fig. 2-19

(3) Remove the printed even-numbered pages from the output tray and put them into the

manual feed slot in the same order. Place the paper with the side that is going to be
printed on (the blank side) face up. Follow the instructions on the computer screen.



Fig. 2-20

(4) Repeat Step (3) until you have printed all the odd-numbered pages on the other side of the

paper.

2-19

Confidential

CHAPTER 2 INSTALLATION AND BASIC OPERATION

4.5 Paper Orientation for Manual Duplex Printing

The printer prints the second page first.
If you print 10 pages on 5 sheets of paper, it will print page 2 then page 1 on the first sheet of

paper.
It will print page 4 then page 3 on the second sheet of paper.
It will print page 6 then page 5 on the third sheet of paper, and so on.

When doing manual duplex printing, the paper must be put in the paper tray in the following
way:

* For the manual feed slot:

Put the side to be printed on first, in face-up, with the leading edge (top) of the paper in first.
To print the second side, put the paper face down, with the leading edge (top) of the paper in

first.
If letterhead paper is used, this would be put in with the heading face down, and in first.
To print the second side, put the heading face up and in first.

* For the paper tray:

Put the side to be printed on first, face down, with the leading edge (top) of the paper at the
front of the tray.

To print the second side, put the paper face up, with the leading edge (top) of the paper at the
front of the tray.

If letterhead paper is used, this would be put in to the paper tray with the heading face up, and
at the front of the tray.

To print the second page, put the heading face down and at the front of the tray.

2-20

Confidential

CHAPTER 2 INSTALLATION AND BASIC OPERATION

5. CONTROL PANEL OPERATION

There are four Light Emitting Diodes (LEDs) (Toner, Drum, Paper, Ready) and a control
panel button (Go) on the control panel.

Fig. 2-21

5.1 Control Panel Button & LED Functions (Printer Status)

5.1.1 Control panel button Go button: Cancel printing, Wake-up, Form feed, Error recovery and Reprint.

5.1.2 LEDs

1) Toner LED (Yellow) indicates when the toner is low or empty.

2) Drum LED (Yellow) indicates when the drum is nearing end of life.

3) Paper LED (Red) indicates when an error occurs, such as cover open or paper jam.

4) Ready LED (Green) indicates when the printer is ready or if data is remaining.

LED is off

LED is on

LED is blinking

NOTE:
When the power switch is off or the printer is in Sleep mode, all LEDs are off.

2-22

Confidential

5.2 LED Indications

LED Printer status

Fig. 2-22

HL-2030/2040/2070N SERVICE MANUAL

Sleep mode

The power switch is off or the printer is in Sleep mode. Pressing
the Go button wakes up the printer from Sleep mode to
Warming up mode. After warming up, the printer will be ready
state.

Warming up
The printer is warming up.

Receiving data

The printer is either receiving data from the computer,
processing data in memory or printing the data.

Fig. 2-23

Fig. 2-24

Fig. 2-25

Print data is left in the printer memory. If the Ready LED blinks
for a long time and nothing has been printed, press the Go
button to print the data that is still in memory.

Ready to print
The printer is ready to print.

Toner low

Indicates that the toner cartridge is nearly empty. Purchase a
new toner cartridge and have it ready for when “Toner Life End”
is indicated.

The Toner LED alternates turning on for 2 seconds and off for 3
seconds.

Data remaining in memory

Toner life end

Replace the toner cartridge with a new one. See 1.2 ‘Toner

Cartridge’ in Chapter 5.

Cartridge position error

The toner cartridge is not installed correctly. Take out the toner
cartridge and put it back into the printer again.

Fig. 2-26

2-23

Confidential

CHAPTER 2 INSTALLATION AND BASIC OPERATION

LED Printer status

Drum life end soon

The drum unit is near the end of its life. We recommend that
you obtain a new drum unit to replace the current one. See 1.1

‘Drum Unit’ in Chapter 5.

The Drum LED alternates turning on for 2 seconds and off for 3
seconds alternately.

Fig. 2-27

No paper
Load paper in the printer. Then press the Go button.

Fig. 2-28

Front Cover Open
Close the front cover of the printer.

Back Cover Open
Close the back cover of the printer.

Jam

Clear the paper jam. If the printer does not start printing, press

Fig. 2-29

Go button.

Manual feed
Put the paper in the manual feed slot.

Memory full

The printer memory is full and the printer is unable to print the
page.

Print overrun

The printer memory is full and the printer is unable to print the
page.

Dust on drum

The corona wire needs to be clean. See 3.2 ‘Cleaning the

Corona Wire ‘ in Chapter 5.

2-24

Confidential

5.3 Service Call Indications

If there is an error that can not be cleared by the user, the printer will show that a service call
is needed by lighting up all the LEDs as shown in the figure below.

Fig. 2-30

When you press the Go button, the LEDs will light up as shown Table 1: LED indications while
pressing Go button as follows.

Table 1: LED indications while pressing Go button

LEDs

Fuser unit

failure*

Laser unit

failure

HL-2030/2040/2070N SERVICE MANUAL

If you see the service call indication on the
left, turn off the power switch, wait a few
seconds, and then turn it back on and try to
print again.

Main

motor

failure

Main

PCB

failure

High

Voltage

Error

Toner

Drum

Paper

Ready

Yellow

Yellow

Yellow

Red

Red

Yellow

Yellow

For example, the LED indication on the left
side shows a fixing unit failure.

Fig. 2-31

NOTE:

• Make sure that the front cover is fully closed before you report a service call.

• If this error occurs, turn the power switch off, wait a few seconds, and then turn it on again.

Leave the printer for 10 minutes with the power on.

2-25

Confidential

5.4 Control Panel Button (Go button)

The control panel button is used for the following purposes depending on the situation.

Operation Description

Cancel printing When there is the receiving data or printing data press the Go button for

about 4 seconds until all LEDs light up. The Ready and Paper LEDs will
flash as the job is being canceled.

Wake-up If the printer is in Sleep mode, press the Go button to wake the printer up

and go to the ready state.

Form feed If the green Ready LED blinks for a long time, press the Go button. The

printer will print any data that is left in the printer memory.

HL-2030/2040/2070N SERVICE MANUAL

Error recovery

If there is an error, the printer will recover automatically from some errors.
If an error is not automatically cleared, press the Go button to clear the
error, and then continue to use the printer.

Reprint

If reprinting the last document when there is no receiving data or printing
data press the Go button for about 4 seconds until all LEDs light up.

5.5 Other Control Features

The printer has the following useful features;

5.5.1 Print a test page

You can use the Go button or the printer driver to print a test page.

<Using control panel button>

(1) Turn off the printer.
(2) Make sure that the front cover is closed and the power cord is plugged in.

(3) All LEDs light up, and keep the Go button pressed down until the Ready LED goes off.

Release the Go button. Then the Toner, Drum and Paper LEDs go off.

(4) Press the Go button again. The printer will print a test page.

<Using the printer driver>
If you are using Brother’s Windows

General tab of the Windows

®

®

printer driver.

printer driver, click the “Print Test Page” button. It is in the

Fig. 2-32

2-25

Confidential

CHAPTER 2 INSTALLATION AND BASIC OPERATION

5.5.2 Print a printer settings page

You can print the current settings using the control panel button or printer driver.

<Using control panel button>
(1) Make sure that the front cover is closed and the power cord is plugged in.
(2) Turn on the printer and wait until the printer is in ready state.

(3) Press the Go button three times within 2 seconds. The printer will print the current printer

settings.

<Using the printer driver>

If you are using Brother’s Windows
clicking the Print Settings button in the Support tab.

®

printer driver, you can print the current printer settings by

5.5.3 Print fonts (For HL-2070N)

You can print a list of the internal fonts using the control panel button or printer driver.

<Using the control panel button>
(1) Turn off the printer.
(2) Make sure that the front cover is closed and the power cord is plugged in.

(3) All LEDs light up, and keep the Go button pressed down until the Ready LED goes off.

Release the Go button. Then the Toner, Drum and Paper LEDs go off.

(4) Press the Go button twice. The printer will print a list of the internal fonts.

<Using the printer driver>
If you are using Brother’s Windows
clicking the Print Fonts button in the Support tab.

Fig.2-33

®

printer driver, you can print a list of the internal fonts by

2-26

Confidential

6. NETWORK FUNCTIONS (FOR HL-2070N)

6.1 LED Functions

HL-2030/2040/2070N SERVICE MANUAL

LED
(Light-emitting Diode)

Fig. 2-34

No light:

If both of the two LEDs are off, then the print server is not connected to the network.

Link LED is orange:

This Link LED will be orange if the print server is connected to a 100BaseTX Fast Ethernet
network.

Link LED is green:

This Link LED will be green if the print server is connected to a 10 Base T Ethernet.

Active LED is yellow:

The Active LED will blink if the print server is receiving or transmitting data.

6.2 Network Factory Default Setting (For HL-2070N)

If you wish to reset the print server back to its default factory settings (resetting all information
such as the password and IP address information), please follow these steps;

(1) Turn off the printer.

(2) Make sure that the front cover is closed and the power cord is plugged in.

(3) All LEDs light up, and keep the Go button pressed down until the Ready LED goes off.

Release the Go button. Then the Toner, Drum and Paper LEDs go off.

(4) Press the Go button six times. Make sure that all the LEDs light up to indicate the printer

server has been reset to its default factory settings.

NOTE:

• If you wish to reset the printer and automatically disable the APIPA protocol, follow steps (1)

to (3) above. Press the Go button seven times and make sure that all the LEDs light up to
indicate the printer server has been reset to its default factory settings.

• For more information on APIPA, see the Network User’s Guide or visit

http://solutions.brother.com

• You can also disable the APIPA protocol using EWS, BRAdmin Professional or Web

BRAdmin.

2-27

Confidential

CHAPTER 2 INSTALLATION AND BASIC OPERATION

6.3 Network Factory Default Setting with APIPA Protocol Disabled (For HL-2070N)

If you wish to reset the print server back to its default settings with APIPA protocol disabled,
please follow these steps.

(1) Turn off the printer.

(2) Make sure that the front cover is closed and the power code is plugged in.

(3) Hold down the Go button as you turn on the power switch. All LEDs light up, and keep the

Go button pressed down until the Ready LED goes off. Release the Go button. Make
sure that the Toner, Drum and Paper LEDs are off.

(4) Press the Go button seven times. Make sure that all the LEDs light up to indicate the print

server has been reset to its default factory settings.

NOTE:

• You can disable the APIPA protocol using Web browser, BRAdmin Professional or Web

BRAdmin.

• For more information of APIPA, please refer to the Network User’s Guide.

2-28

Confidential

7. OPTIONAL PRINT SERVER

This printer has the following optional print servers.

Model NC-2200w NC-2100p

HL-2030 O N/A

HL-2040 O O

HL-2070N O N/A

Wireless print server (NC-2200w)

HL-2030/2040/2070N SERVICE MANUAL

An optional network print server (NC-2200w) allows you to print in a wireless environment
through the USB interface. The NC-2200w is compatible with Windows

4.0 and Windows

®

2000/XP.

®

98/ME, Windows NT®

The Brother NC-2200w wireless print server supports the IEEE 802.11b wireless networking
standard and can work in infrastructure or Ad-hoc mode using common wireless authentication
and security methods.

For more information, please visit our web site at http://solutions.brother.com

.

Network interface IEEE 802.11b wireless

Communication Mode Infrastructure / Ad-hoc 802.11

Security SSID, WEP (64/128bit)

Printer Interface USB 2.0 (Full-speed)

Support Protocol TCP/IP

Management Features

Embedded web server support

SNMP/MIB support

TELNET remote console

BRAdmin Professional compatible

Flash memory for easy updating of firmware

Print server (NC-2100p) (For HL-2040)

An optional network print server (NC-2100p) allows you to connect to your network through the
parallel interface.

Network interface 10/100BASE-TX Ethernet

Printer Interface Parallel

Support Protocol TCP/IP, NetBEUI

Management Features

Note:

HL-2070N already has a built-in 10/100BASE-TX Ethernet Print Server.

Embedded web server support

SNMP/MIB support

TELNET remote console

BRAdmin Professional compatible

Flash memory for easy updating of firmware

2-29

Confidential

CHAPTER 3 THEORY OF OPERATION

1. ELECTRONICS

1.1 General Block Diagram

Fig. 3-1 shows a general block diagram. (HL-2030/2040/2070N)

Control system

HL-2030/2040/2070N SERVICE MANUAL

supply block

Low-voltage power

RAM
HL-2030: 8MB
HL-2040: 8MB
HL-2070N: 16MB

Video control block

Laser unit

Ethernet

10/100 Base TX

(HL-2070N only)

Engine control block

Interface block
USB
Parallel
(HL-2040/2070N)

Operation block

(Control panel)

Drive block
(DC motor)

External device

External device

Paper tray

supply block

High-voltage power

Image generation system

Drum unit

Charging

block

Transfer block

Exposure

drum

Developing

block

Toner cartridge

Fig. 3-1

Paper dust

cleaner block

3-1

Fixing unit

Paper eject block

Paper feed system

Confidential

CHAPTER 3 THEORY OF OPERATION

1.2 Main PCB Block Diagram

Fig. 3-2 shows the block diagram of the main PCB. (HL-2030/2040/2070N)

Reset Circuit

Program + Font ROM
HL-2030/2040: 1MB
HL-2070N: 8MB

Network Program
(HL-2070N only)

CPU Core (SPARClite)
HL-2030/2040: 96.0MHz
HL-2070N: 133.0MHz

INTBUS

A S I C

Oscillator
HL-2030/2040: 48.0MHz
HL-2070N: 66.6MHz

Address Decoder

DRAM Control

Timer

FIFO

RAM
HL-2030/2040: 8MB
HL-2070N: 16MB

EEPROM
HL-2030/2040: 512 x 8 bit
HL-2070N: 4096 x 8 bit

To PC
or Hub

Network Controller

(HL-2070N only)

Oscillator 25MHz

(HL-2070N only)

Fig. 3-2

CDCC Parallel I/O

xternal Gate Array)

(E

USB I/O

Oscillator 12MHz

Soft Support

EEPROM I/O

Engine Control I/O

To PC

To PC

3-2

Confidential

1.3 Main PCB

For the entire circuit diagram of the main PCB, see APPENDIX 1. to 6. ‘MAIN PCB CIRCUIT

DIAGRAM’ in this manual.

1.3.1 CPU

A Fujitsu 32bit RISC CPU, SPARClite is built in the ASIC. While the CPU is driven with a clock
frequency of 48.00 MHz (HL-2030/2040) or 66.66 MHz (HL-2070N) in the user logic block, it
itself runs at 96.0 (HL-2030/2040) or 133.0 MHz (HL-2070N), which is generated by multiplying
the source clock by two.

HL-2030/2040/2070N SERVICE MANUAL

< HL-2030/2040 >

If=(3.3V-1.2V)/180

=11.7mA

P=(11.7mA)^2*180

=1/41W

48.00MHz
XTAL

VDD3

R114

180

PI1

TP141

A

K

SG-206S

EJECT SENSOR

C

E

0V

R115

33k

VDD3

Ic=3.3V/33k

=97

0V

DATA[15-0]

C76

C5P

C75

C5P

0V

VDD3

DBRXD

TP97

A

5C

1

X2

2

AT-49 48.00MHZ

@C16

C10P

@C11

0

R28

2D

FRONT_COVER_SEN

THM1

2-2B

SENSE

2-5B/2-7B

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

TP116

R86

330

@R20

100

1

@X1

2

AT-49 33.333333MHZ

33.3333MHz
XTAL

USBVCC

1k

VBDN

HTLIMITN

SCANNER_FGS

MAIN_FGS2

PNLSW0

REG_REAR_SEN

REG_FRONT_SEN

PEDG_SEN

TNRLED

GRIDC

2-2C

TNR_SEN

2-2D

FB_TR

2-2C

FB_TRCCV

2-2C

FB_GRID

2-2C

FB_DEV

2-2C

FB_VCLN

2-2C

TP63

TP62

TP61

TP67

TP60

TP66

TP59

TP81

TP94

TP120

TP123

TP96

TP103

TP111

TP108

TP112

R85

2.2k

TP17

@R19

3.3k

5E

5D

2-1A

2-6C

2-7E

2-2F

2-2F

2-2D

2-2B

2-2B

2-3B

TP182

L9

0

ANALOG

ANALOG

ANALOG

ANALOG

ANALOG

ANALOG

TP181

L10

0

Fig. 3-3

10k

U4

138

DATA00

139

DATA01

140

DATA02

141

DATA03

142

DATA04

143

DATA05

2

DATA06

3

DATA07

4

DATA08

5

DATA09

6

DATA10

8

DATA11

9

DATA12

10

DATA13

11

DATA14

12

DATA15

31

UCKOUT

29

UCKIN

27

SCKIN

0V

85

VCKOUT

87

VCKIN

102

USBVCC

82

DBRXD

80

VBDN

25

HTLIMITN

73

SCANFGS

(5Vtol)

35

DCFGS

(5Vtol)

59

PNLSW0

52

SEN0

51

SEN1

50

SEN2

49

SEN3

20

SEN4

53

TNRLED

69

HVNOISE

39

AI0

40

AI1

41

AI2

42

AI3

43

AI4

44

AI5

45

AI6

46

AI7

Bellona

(5Vtol)

(5Vtol)

(5Vtol)

(5Vtol)

(5Vtol)

(5Vtol)

ADR10

ADR11

ADR12

ADR13

ADR14/BA0

ADR15/BA1

ADR16/RASN

ADR17/CASN

ADR18/WEN

ADR19/DQM0

ADR20/DQM1

ADR21

ADR22

ROMCSN0

IOWEN

IORDN

SDCLK0

SDCSN0

EESCL

EESDA

USBCTL

USBDP

UDBDN

DBTXD

HEATERON

RLYOFFN

FAN24V

FAN12V

SCANCTL

DCCTL

(5Vtol)

PNLLED0

PNLLED1

PNLLED2

PNLLED3

HVVCLN

HVPWMVCLN

HVPWMDEV

HVPWMTRCV

HVPWMTRCC

HVPWMCHG

PORT00

PORT01

PORT02

PORT03

PORT04

PORT05

PORT06

PORT07

PORT08

111

R29

ADR1

112

ADR2

113

ADR3

116

ADR4

117

ADR5

118

ADR6

119

ADR7

120

ADR8

121

ADR9

122

123

124

125

126

130

131

132

133

134

135

136

137

10k

10k

R110

R33

15

16

17

18

19

95

94

101

98

99

83

81

VSH

23

24

21

22

74

34

33

DCFR

60

61

62

63

48

SOL1

47

SOL2

67

TP42

70

68

64

65

66

72

REV1

TP32

71

36

TP89

26

TP31

75

TP14

104

TP7

105

TP1

106

TP2

107

TP6

108

VDD3

10k

10k

10k

10k

10k

TP113

R93

R100

R104

R102

R109

10k

R108

8E

5E

5E

5E

TP4TP5

2-4D

2-7D

2-7D

0V

7E

2D

2-2F

HEATERON

2-1A

RLYOFFN

2-1A

FAN24V

2-6A

FAN12V

2-6B

SCAN_CTL

PNLLED0

2-2F

PNLLED1

2-2F

PNLLED2

2-2F

PNLLED3

2-2F

SOL1

2-2E

SOL2

2-2E

HVPWMTRCV

2-2D

HVPWMVCLN

2-2D

HVPWMDEV

2-2D

HVPWMTRCC

2-2D

HVPWMCHG

2-2D

EESCL

EESDA

USBCTL

USBDP

USBDN

DBTXD

PNEW_SEN

MAIN_CTL

MAIN_F/R

R36

R7

R6

@R4

R3

R1

ADR[1]

TP121

ADR[2]

TP127

ADR[3]

TP135

ADR[4]

TP133

ADR[5]

TP124

ADR[6]

TP117

ADR[7]

TP109

ADR[8]

TP95

ADR[9]

TP53

ADR[10]

TP44

ADR[11]

TP79

ADR[12]

TP46

ADR[13]

TP70

ADR[14]

TP87

ADR[15]

TP115

ADR[16]

TP92

ADR[17]

TP83

ADR[18]

TP131

ADR[19]

TP75

ADR[20]

TP102

ADR[21]

TP76

ADR[22]

ADR[22-1]

TP100

ROMCSN0

TP106

7A

IOWEN

TP105

7A

IORDN

7A

TP91

SDCLK0

TP99

6B

SDCSN0

6A

TP189

10k

10k

R73

10k

10k

10k

10k

10k

5C/6A/6B

R34

VDD3

10k

VDD3

VDD3

0V

VDD3

0V

VDD3

0V

MAIN_START

2-7C

MAIN_FGS

2-8C

@R31

10k

VDD3

@R30

10k

0V

CDCC_RSTN

3-1B

CDCC_DATA

3-1C

CDCC_REQN

3-1C

CDCC_INTN

3-1B

CDCC_CLK

3-1C

3-3

Confidential

CHAPTER 3 THEORY OF OPERATION

< HL-2070N >

DATA[15-0]

2-1E/2-4F

ACTIVE=H

LAN_INT

2-1B

66.6666MHz
or

16.6666MHz

XTAL

C15

C22P

C16

AT-49 16.6666MHZ

C22P

0V

C3

L1

0V

(1608)

C103

R19

R21

0V

C79

C10P

33.3333MHz
XTAL

AT-49 33.333333MHZ

C91

0V

0

C18

C5P

48.00MHz
XTAL

C17

0V

C5P

U6

TP171

30

DATA[0]

TP179

31

DATA[1]

TP175

32

DATA[2]

TP183

33

DATA[3]

TP170

34

DATA[4]

TP178

35

DATA[5]

TP174

36

DATA[6]

TP182

37

DATA[7]

TP169

38

DATA[8]

TP176

39

DATA[9]

TP173

40

DATA[10]

TP181

41

DATA[11]

TP168

42

DATA[12]

TP177

43

DATA[13]

TP172

44

DATA[14]

TP180

45

DATA[15]

TP227 TP106

TP98

R158

205

201

68

VDD3

TP9

R9

161

1k

1

R10

X1

3.3k

2

159

TP17

166

TP20

167

0

0

214

VDD3

131

DBRXD

5F

186

PHRXD

6F

TP103

R74

58

100

1

R78

X3

3.3k

2

56

118

VBDN

3D

73

PNLSW0

3-2F

TP10

R12

155

100

1

R11

X2

4.7k

2

157

AT-49 48.00MHZ

173

USBVCC

3E

54

HTLIMITN

3-1A

71

TNRLED

3-3B

DATA0

DATA1

DATA2

DATA3

DATA4

DATA5

DATA6

DATA7

DATA8

DATA9

DATA10

DATA11

DATA12

DATA13

DATA14

DATA15

EXINTN0

EXINTN1

SCKOUT

SCKIN

SSCG0

SSCG1

SDBKUPN

DBRXD

PullU

5Vtol

PHRXD

PullU

VCKOUT

VCKIN

VBDN

PNLLED0/PNLRSTN

PNLLED1/PNLCLK

PNLLED2/PNLDO

RST:H

PNLSW0/PNLDIN

5Vtol

UCKOUT

UCKIN

USBVCC

HTLIMITN

TNRLED

MB87S1200

ADR14/BA0

ADR15/BA1

ADR16/RASN

ADR17/CASN

ADR18/WEN

ADR19/DQM0

ADR20/DQM1

HEATERON

MDMRSTN

ROMCSN0

ROMCSN1

PNLLED3

RLYOFFN

2

ADR1

3

ADR2

4

ADR3

5

ADR4

6

ADR5

7

ADR6

8

ADR7

9

ADR8

10

ADR9

11

ADR10

12

ADR11

16

ADR12

17

ADR13

18

19

20

21

22

23

24

25

ADR21

26

ADR22

27

ADR23

207

LANRST

203

TP95

211

210

TP108

206

EXCSN0

202

TP88

EXCSN1

204

EXCSN2

209

IOWEN

208

IORDN

216

SDCLK0

215

SDCSN0

213

SDCKE

132

DBTXD

187

PHTXD

74

75

76

77

52

53

51

FAN12V

50

FAN24V

If=(3.3V-1.2V)/180

VDD3

10k

10k

10k

10k

10k

R85

10k

10k

R151

R86

VDD3

TP123

TP107

TP100

TP115

TP124

TP117

10k

10k

10k

10k

10k

R134

R139

R137

R136

R135

R114

R150

R146

R153

10k

10k

R148

R144

R157

10k

2-5C/2-7D

R72

0V

R76

R75

R81

R82

TP48TP37

R142

ROMCSN0

5F

5F

3-2F

3-2F

3-2F

3-2F

3-1A

3-1A

3-5F

3-5F

TP150

TP223

TP208

TP146

TP145

TP148

TP149

TP151

TP152

TP153

TP206

TP154

TP195

TP112

TP134

TP138

TP125

TP166

TP162

TP158

TP113

TP118

TP114

10k

10k

R141

0V

TP105

LAN_RST

2-1B

RESET=H

TP97

33

LAN_CSN

2-1A

TP121

33

IOWEN

TP111

2-1B/2-5C

33

IORDN

2-1B/2-5D/2-7D

33

SDCLK0

2-4D

33

SDCSN0

2-4D

DBTXD

PHTXD

PNLLED0

PNLLED1

PNLLED2

PNLLED3

HEATERON

RLYOFFN

FAN12V

FAN24V

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

ADR[15]

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

ADR[21]

ADR[22]

ADR[23]

=11.7mA
P=(11.7mA)^2*180
=1/41W

VDD3

VDD3

TP156

SG-206S

MAIN_FGS

FRONT_COVER_SEN

R87

REG_REAR_SEN

33k

REG_FRONT_SEN

PI1

TP127

C

Ic=3.3V/33k
=97 A

E

H:CLOSE
L:OPEN

0V

VDD3

R83

10k

TP126

3-8C

ADR[1]

R116

180

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

EJECT SENSOR

ADR[23-1]

2-1D/2-4F/2-4D

A

K

PEDG_SEN

PNEW_SEN

SCANNER_FGS

MAIN_FGS2

GRIDC

U6

70

SEN0

3-2F

69

SEN1

3-2D

68

SEN2

3-2B

67

SEN3

3-2B

49

SEN4

PullD

PullU

PullD

72

REV0

3-2F

64

REV1

88

SCANFGS

3-6C

62

DCFGS

3-8E

86

HVNOISE

3-2C

180

HSRXD

182

0V

HSCTS

146

NCU2ADLC

149

NCU2POL

148

NCU2DPS

147

NCU2CHRG

153

NCUPLS

176

NCURNG

152

NCUCI

175

TELOFF

145

0V

HOOK

121

VDD3

FSEN

120

RSEN

102

0V

AI8

103

AI9

0V

105

VDD3

VRH

107

0V

VRL

106

0V

VIN1

MB87S1200

5Vtol

PORT04/CDCCRSTN

PORT05/CDCCDATA

PORT06/CDCCREQN

PORT07/CDCCINTN

PORT08/CDCCCLK

5Vtol

HVPWMVCLN

HVPWMDEV

HVPWMTRCV

HVPWMTRCC

HVPWMCHG

I/O

I/O

5Vtol

TELVOLPWMR

TELVOLPWMS

SPVOLPWM

I/O

PullD

5Vtol

I/O

SCANCTL

NCURING

RMOTSEL

PWMREFH

PWMREFL

CISLEDR

CISLEDG

CISLEDB

CISMODE

CISCLMP

TP61

R40

185

10k

PORT00

63

PORT01

184

PORT02

183

PORT03

195

196

197

198

199

89

61

DCCTL

60

DCFR

66

SOL1

65

SOL2

84

HVVCLN

87

85

81

82

83

179

HSTXD

181

HSRTS

150

151

178

177

128

122

RMOT1

123

RMOT2

124

RMOT3

125

RMOT4

126

RMPT1

127

RMPT2

142

CISTG

141

CISCLK

90

91

140

RDLED

137

138

139

144

CISON

143

136

VDD3

MAIN_START

3-7C

TP64

R47

10k

VDD3

TP58

@R43

10k

VDD3

@R169

10k

0V

CDCC_RSTN

2-5A

CDCC_DATA

2-5B

CDCC_REQN

2-5B

CDCC_INTN

2-5A

CDCC_CLK

2-5B

SCAN_CTL

3-4D

MAIN_CTL

3-6C

MAIN_F/R

3-7C

SOL1

3-2E

SOL2

3-2E

TP70

TP82

R41

1

TP54

R27

TP63

R30

TP78

R38

TP73

R35

0

0V

0V

0V

TP44

TP28

0V

TP25

TP46

TP50

TP41

TP35

TP36

TP47

TP26

TP45

TP34

TP27

HVPWMTRCV

3-2D

0

HVPWMVCLN

3-2D

5.6k
HVPWMDEV

3-2D

1

C101

C102

C102

C51

C50

C44

3-5A/3-7A

HVPWMTRCC

3-2D

HVPWMCHG

3-2D

C104

C41

C39 C104

123

@SW1

TNR_SEN

FB_TRCCV

FB_GRID

FB_VCLN

SENSE

U6

110

TP19

RCKOUT

111

VDD1.9

RVDD

112

0V

RCKIN

109

0V

RTCRSTN

L2 (1608)

163

SSCGVDD

164

SSCGVSS

TP245

L4

94

AI0

THM1

0

3-2B

95

ANALOG

AI1

3-2C

ANALOG

FB_TR

3-2C

ANALOG

3-2C

ANALOG

3-2C

ANALOG

FB_DEV

3-2C

ANALOG

3-2C

TP246

L5

0

TP22

0V

VDD3

NC

TP72

0V

15

VDDI15

96

48

AI2

VDDI48

59

VDDI59

97

80

AI3

VDDI80

116

VDDI116

98

135

AI4

VDDI135

154

VDDI154

99

174

AI5

VDDI174

194

VDDI194

100

AI6

101

AI7

1

VDDE1

13

VDDE13

28

VDDE28

46

VDDE46

55

VDDE55

78

VDDE78

192

115

VPD

VDDE115

133

VDDE133

165

158

TESPTN

VDDE158

162

VDDE162

191

171

XTST

VDDE171

200

VDDE200

190

TSTDATA

189

TSTMODEN

14

PullU

VSS14

29

VSS29

47

VSS47

57

VSS57

79

VSS79

113

VSS113

134

VSS134

156

VSS156

160

VSS160

168

VSS168

188

VSS188

212

VSS212

93

AVDD

92

AVSS

104

AVDDH

108

AVSSH

MB87S1200

VDD3

0

C29

C103

0V

VDD1.9

C103

C103

C103

C58

C25

C111

C103

C103

C103

C103

C103

C103

C69

C24

C47

C103

C103

C28

C40

C82

0V

VDD3

C45

C103
0V

VDD3

C34

C103

0V

0V

C21

C108

C83

VDD3

C103

C103

C103

C103

C103

C23

C22

C109

C106

C105

C103

C103

C103

C103

C103

0V

C71

C107

C110

C26

Fig. 3-4

3-4

Confidential

The functions of the interface block communication with external devices are described below;

1.3.2 USB interface

Stores the data received from the PC into DRAM as controlled by the DMA controller. The
transmission speed is 12Mbps.

< HL-2030/2040 >

USBDP

USBDN

HL-2030/2040/2070N SERVICE MANUAL

USBCTL

4C

TP47

USBVCC

TP71

R27

R26

3C

27

27

C52
C101

TP30

TP24

4C

4C

C35

C101

R65

1M

R50

100k

0V

0V

R49

1.5k

0V

0V

ZD3

ZD1

ZD2

R68

22k

UDZS6.8B

0V

IF_FG

USB

CN5

1

PC5V

3

DP

2

DN

4

GND

5

FG

6

FG

UBR24-4K2300

< HL-2070N >

U6

MB87S1200

USBCTL

USBDP

UDBDN

172

170

169

TP31

TP21

C36

TP49

C68P

C38

0V

C68P

R25

27

R23

27

Fig. 3-5

C43

C101

0V

Fig. 3-6

USBVCC

R34

1.5k

2F

100k

R33

TP42

0V

C42
C101

0V

R32

DA1

DF5A6.8FU

1M

R37

22k

NC

C3C1C2AC4

IF_FG

0V

USB

CN5

1

PC5V

3

DP

2

DN

4

0V

GND

5

FG

6

FG

UBR24-4K2300

3-5

Confidential

CHAPTER 3 THEORY OF OPERATION

1.3.3 IEEE1284 interface

Stores the data received from the PC into DRAM by DMA using the Gate Array
(UPD65421MC-11) exclusive for parallel I/F. It is for the normal receipt and dual direction
communication (nibble mode, byte mode, ECP mode).

< HL-2040 >

@R134

TP159

CDCC_RSTN

CDCC_INTN

CDCC_REQN

CDCC_CLK

CDCC_DATA

1k

1-5F

@C112

C104

0V

TP157

@R131

1-5F

100

TP156

@R132

1-5F

100

TP146

@R2

1-5F

100

TP154

@R5

1-5F

100

CDCC_0V

21

24

22

25

23

13

20

CDCC_GA

@U12

RSTN/SIN

INTN

REQN/SOUT

CLK/SCK

DATA

AMC

SMC

CDCC-GA

VDD51

VDD57

VDD516

GND15

GND26

SELECT

SELINN

INITN

1

7

16

30

VDD3

15

26

6

ACKN

5

BUSY

4

PE

3

28

FLTN

2

AFN

29

27

17

STBN

18

D0

19

D1

14

D2

12

D3

11

D4

10

D5

9

D6

8

D7

0V

TP155

TP150

@C117

TP190

@L11

BLM18PG181SN1

@C100

C103

TP191

@L12

BLM18PG181SN1

CDCC_0V

2718364

5

@C118

1.5k

@R124

@R121

C101

@C106

0V

C101

C101

C101

C101

@C120

@C121

@C125

1.5k

@RA5

C101

C101

@C108

@C127

VDD3

@C143

C104

(1608)

VDD5

0

@RA4

8

1

7

2

6

3

5

4

0

C101

C101

C101

@C109

C101

@C128

C101

@C98

@C110

@C114

TP161

@RA8

1

2

3

4

@RA7

1

2

3

TP158

4

C101

C101

@C129

C101

@C113

C101

@C111

VDD5

@C97

C103

0V

VDD5

2718364

1.5k

@RA2

5

TP148

8

1

7

2

6

3

5

4

100

@RA3

C101

@C115

100

8

7

6

5

100

8

7

6

5

2718364

2.2k

@RA9

5

VDD5

2718364

0V

@RA6 2.2k

5

0V

DF5A6.8FU

DF5A6.8FU

@DA3

C3C1C2AC4

DF5A6.8FU

@DA2

@DA1

C3C1C2AC4

C3C1C2AC4

DF5A6.8FU

@DA4

VDD5

IF_FG2

IF_FG3

0V

C3C1C2AC4

UDZS6.8B

NC

NC

NC

NC

CDCC

10

11

12

13

32

14

36

31

1

@ZD5

2

3

4

5

6

7

8

9

15

33

34

35

18

16

17

19

20

21

22

23

24

25

26

27

28

29

30

37

38

57RE40360-730B-D29

ACK

BUSY

PE

SELECT

FLT

ATFEED

SELIN

INPRIM

STB

DI1

DI2

DI3

DI4

DI5

DI6

DI7

DI8

NC

NC

NC

NC

+5V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

FG

FG

@CN10

Fig. 3-7

3-6

Confidential

< HL-2070N >

R61

TP74 TP116

CDCC_RSTN

CDCC_INTN

CDCC_REQN

CDCC_CLK

CDCC_DATA

1k

1-5A

C72

C104

R71

1-5B

100

TP81

R68

1-5A

100

TP92

R73

1-5B

100

TP83

R64

1-5A

100

HL-2030/2040/2070N SERVICE MANUAL

U7

21

RSTN/SIN

0V

TP96TP87

24

INTN

TP91

22

REQN/SOUT

TP101

25

CLK/SCK

TP110

23

DATA

13

AMC

20

0V

SMC

CDCC-GA

CDCC_GA

VDD51

VDD57

VDD516

VDD3

GND15

GND26

ACKN

BUSY

SELECT

FLTN

SELINN

INITN

STBN

1

7

16

30

C74

15

26

1.5k

RA4

TP109

6

5

4

PE

3

TP90

28

2

AFN

29

27

17

18

D0

19

D1

14

D2

12

D3

11

D4

10

D5

9

D6

8

D7

0V

VDD5

C103

C103

VDD3

C103

0V

VDD5

2718364

1.5k

R54

5

C101

C96

0V

C101

C101

C101

C84

C87

C86

0

RA5

8

1

7

2

6

3

5

4

0

R93

TP93

C101

C101

C101

C101

C101

C146

TP122

TP104

C101

C145

RA12

1

2

3

4

RA6

1

2

3

4

2.2k

C144

C143

RA17

100

8

7

6

5

100

8

7

6

5

C101

C101

C81

C63

C62

C123

C101

C101

C101

C101

C93

C90

C101

C89

C97

C92

1.5k

RA1

8

1

7

2

6

3

5

4

100

RA2

2718364

5

5

Fig. 3-8

VDD5

2718364

0V

C3C1C2AC4

UDZS6.8B

DA5

NC

NC

NC

NC

CDCC

10

11

12

13

32

14

36

31

1

ZD1

2

3

4

5

6

7

8

9

15

33

34

35

18

16

17

19

20

21

22

23

24

25

26

27

28

29

30

37

38

57RE40360-730B-D29

ACK

BUSY

PE

SELECT

FLT

ATFEED

SELIN

INPRIM

STB

DI1

DI2

DI3

DI4

DI5

DI6

DI7

DI8

NC

NC

NC

NC

+5V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

0V

FG

FG

CN11

5

DA2

VDD5

2718364

0V

RA7 2.2k

DA4

0V

DF5A6.8FU

DF5A6.8FU

C3C1C2AC4

C3C1C2AC4

DA3

DF5A6.8FU

DF5A6.8FU

IF_FG2

IF_FG3

C3C1C2AC4

VDD5

3-7

Confidential

CHAPTER 3 THEORY OF OPERATION

1.3.4 Network interface

It uses the National Semiconductor brand 10 Base-T/100 Base-TX network controller
(LAN91C1131-NE). The pulse transformer and the Link/Active LED are built in the RJ-45
connector.

< HL-2070N >

X4

C164

AT-49 25.00MHZ

C10P

0V

C171

C10P

LAN_CSN

IORDN

IOWEN

LAN_INT

1-3C

VDD3

0V

0V

ADR[23-1]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

R156

1

2

3

4

R159

R160

R132

R133

C102

RA18

10k

1-3B/4F/4D

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

DATA[15-0]

LAN_RST

1-1B/4F

LAN

U15

127

XTAL1

R129

3.3k

R131

220

1k

C187

10k

10k

10k

10k

0V

TP233

8

TP232

7

TP234

6

TP229

5

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

ADR[15]

ADR[16]

VDD3

1-3C

1-3C/5D/7D

1-3C/5C

1-1C

TP220

TP222

TP224

TP231

TP235

VDD3

TP185

TP186

8

RA14

7

33

6

5

8

RA13

7

33

6

5

8

RA16

7

33

6

5

8

RA15

7

33

6

5

128

41

31

32

29

30

45

38

43

40

36

46

35

37

42

34

97

96

95

94

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

107

106

105

104

102

101

100

99

76

75

74

73

71

70

69

68

66

65

64

63

61

60

59

58

56

55

54

53

51

50

49

48

XTAL2

AEN

nRD

nWR

INTR0

RESET

nLDEV

ARDY

nSRDY

nVLBUS

W/nR

nRDYRTN

nCYCLE

nADS

LCLK

VDD(nDATACS)

VDD(nBE3)

VDD(nBE2)

nBE1

nBE0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15

D16

VDD(D17)

VDD(D18)

VDD(D19)

VDD(D20)

VDD(D21)

VDD(D22)

VDD(D23)

VDD(D24)

VDD(D25)

VDD(D26)

VDD(D27)

VDD(D28)

VDD(D29)

VDD(D30)

VDD(D31)

LAN91C113I-NE

nCSOUT

X25OUT

nCNTRL

RBIAS

nLEDA

nLEDB

TXEN100

CRS100

COL100

RX_DV

RX_ER

ENEEP

AVDD11

AVDD16

AGND13

AGND19

VDD33

VDD44

VDD62

VDD77

VDD98

VDD110

VDD120

GND24

GND39

GND52

GND57

GND67

GND72

GND93

GND103

GND108

GND117

2

TP187

47

TP225

AVDD3

C179

20

TP215

nLNK

21

TP213

LBK

28

12

TP196

14

TPO+

15

TPO-

17

TPI+

18

TPI-

22

23

124

RXD0

123

RXD1

122

RXD2

121

RXD3

116

TXD0

115

TXD1

114

TXD2

113

TXD3

111

119

112

125

126

25

MDI

26

MDO

27

MCLK

118

RX25

109

TX25

3

IOS0

4

IOS1

5

IOS2

6

7

EEDO

8

EEDI

9

EESK

10

EECS

11

16

13

19

1

VDD1

33

44

62

77

98

110

120

24

39

52

57

67

72

93

103

108

117

TP226

C169

TP219

TP198

TP203

TP210

TP188

TP204

TP211

TP190

TP200

TP212

TP193

TP205

TP192

TP189

TP218

TP217

TP214

TP199

TP216

TP191

TP194

TP197

TP202

TP207

(1608)

C103

R140

11k

TP201

C176

49

1%(F)

(1608)

0V

TP221

TP209

3B

3B

0V

AVDD3

C178

(1608)

C103

C103

C103

C168

C170

C180

0V

C103

10%(B)

(1608)

R143

R149
49

1%(F)

(1608)

R152

49.9

1%(F)

(1608)

49

R147

1%(F)

R145

49

1%(F)

(1608)

LEDA

LEDB

L3

0

(1608)

C103

C103

C181

VDD3

OT1

0V

C103

C103

C103

C182

C183

C172

(1608)

C103

R154

49.9

(1608)

1%(F)

C177

C103

(1608)

VDD3

0V

IF_FG4

0V

0V

C104

LEDA

VDD3

VDD3

C104

C104

C191

C189

R155

2B

(1608)

LEDB

2B

R138

C173

(1608)

C104

CN15

C174

12

FG

11

FG

7

LED1_C

100

8

LED1_A

1

TCT

2

TD+

3

TD-

4

RD+

5

RD-

6

RCT

100

10

LED3

9

LED2

0810-1X1T-03

ACTIVE : YELLOW

LINK : GREEN

Fig. 3-9

3-8

Confidential

1.3.5 ROM

A 32Mbit ROM (x 16bit) is fitted.

< HL-2030/2040 >

FLASH PIN

PIN

9

13

14

15

47

64M

A19

A21

WP/ACC

RY/BY

Byte

2A/2-1B/2-4E

32M

A19

WP/ACC

RY/BY

RSTN

16M

A19

NC

NCNC NC

NC

NC

RY/BY

RY/BY

ByteByte Byte

8M

ADR[22-1]

@R90

1k

4B/6A/6B

C82

C101

TP126

ROMCSN0

IORDN

IOWEN

0V

4B

4B

4B

VDD3

VDD3

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

ADR[15]

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

ADR[21]

ADR[22]

FLASH MEMORY

U9

26

CE

28

OE

11

WE

47

BYTE

12

RESET

14

WR/ACC/NC

25

A0

24

A1

23

A2

22

A3

21

A4

20

A5

19

A6

18

A7

8

A8

7

A9

6

A10

5

A11

4

A12

3

A13

2

A14

1

A15

DQ15/A-1

48

A16

17

A17

16

A18

9

A19

10

A20/NC

13

A21/NC

MBM29PL64LM-90TN/10T

HL-2030/2040/2070N SERVICE MANUAL

37

VCC

VSS27

VSS46

RY/BY

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

27

46

15

29

31

33

35

38

40

42

44

30

32

34

36

39

41

43

45

TP130

C84

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

VDD3

C103

0V

DATA[15-0]

3B

Fig. 3-10

3-9

Confidential

CHAPTER 3 THEORY OF OPERATION

A 64Mbit ROM (x 16bit) is fitted.

< HL-2070N >

ROMCSN0

1-2C/7D

IOWEN

1-3C/1B

IORDN

1-3C/1B/7D

ADR[23-1]

1-3B/1D/4D

DATA[15-0]

1-1B/1E

RSTN

1-2C/3-1B

R92

VDD3

TP129

1k

C120

C101

0V

FLASH for MAIN PROGRAM

32

13

34

17

TP130

53

14

31

ADR[1]

26

ADR[2]

25

ADR[3]

24

ADR[4]

23

ADR[5]

22

ADR[6]

21

ADR[7]

20

ADR[8]

10

ADR[9]

9

ADR[10]

8

ADR[11]

7

ADR[12]

6

ADR[13]

5

ADR[14]

4

ADR[15]

3

ADR[16]

54

ADR[17]

ADR[18]

19

18

ADR[19]

ADR[20]

11

12

ADR[21]

15

ADR[22]

2

ADR[23]

1

56

55

0V

U11

CE

WE

OE

RY/BY

BYTE

RESET

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

A21

A22

A23

A24

A25

MBM29PL12LM

VSS52

VSS33

VI/0(VCCQ)

NC27

NC28

NC30

WP/ACC

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15/A-1

ROMCSN0

1-2C/5C

IORDN

1-3C/1B/5D

VDD3

MASK ROM

U12

24

27

1

23

22

21

20

19

18

17

16

10

9

8

7

6

5

4

3

2

15

14

11

13

K3N6V1000D

VCC-37

VCC-38

VSS-12

VSS-25

VSS-26

VSS-36

VSS-47

VSS-48

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15/A-1

37

38

12

25

26

36

47

48

DATA[0]

28

DQ0

DATA[1]

30

DQ1

DATA[2]

32

DQ2

DATA[3]

34

DQ3

DATA[4]

39

DQ4

DATA[5]

41

DQ5

DATA[6]

43

DQ6

DATA[7]

45

DQ7

DATA[8]

29

DQ8

DATA[9]

31

DQ9

DATA[10]

33

DATA[11]

35

DATA[12]

40

DATA[13]

42

DATA[14]

44

DATA[15]

46

VDD3

C103

C141

C103

C139

0V

MASK ROM PIN

SANSEI/MXIC

PIN 128M

A19

11

12

A20

36 NC

A22

SANSEI

MXIC

MXIC

non-page

A21A21

A20

NC

non-page

32M64M

32M

A19

Vss

A20

Vss

8M

NC

A19A19

Vss

Vss

NC

A2013

NC

CE

OE

BHE

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

A20

43

VCC

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ9

VDD3

C124

52

C103

33

0V

29

VDD3

27

28

30

0V

16

VDD3

35

DATA[0]

37

DATA[1]

39

DATA[2]

41

DATA[3]

44

DATA[4]

46

DATA[5]

48

DATA[6]

50

DATA[7]

36

DATA[8]

38

DATA[9]

40

DATA[10]

42

DATA[11]

45

DATA[12]

47

DATA[13]

49

DATA[14]

51

DATA[15]

ADR[22]

ADR[23]

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[13]

ADR[14]

ADR[15]

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

ADR[21]

Fig. 3-11

3-10

Confidential

1.3.6 SDRAM

A 64Mbit SDRAM (x 16bit) is used as the RAM.

< HL-2030/2040 >

ADR[22-1]

4B/6A/6B

SDCSN0

ADR[16]

ADR[17]

ADR[18]

ADR[19]

ADR[20]

SDCLK0

4C

4B/5C

4B/5C

4B/5C

4B/5C

4B/5C

4C

ADR[13]

ADR[14]

ADR[15]

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

4B/5C

4B/5C

VDD3

R72

0

TP101

TP110

19

18

17

16

15

39

38

37

36

40

20

21

23

24

25

26

29

30

31

32

33

34

22

35

SDRAM

U6

CS

VDD1

RAS

VDDQ3

VDDQ9

CAS

VDD14

WE

VDD27

VDDQ43

LDQM

VDDQ49

UDQM

VSSQ6

CLK

VSSQ12

CKE

VSS28

VSS41

NC36

VSSQ46

NC40

VSSQ52

VSS54

BA0

BA1

DQ0

DQ1

DQ2

DQ3

DQ4

A0

DQ5

A1

DQ6

A2

DQ7

A3

DQ8

A4

DQ9

A5

DQ10

A6

DQ11

A7

DQ12

A8

DQ13

A9

DQ14

A10/AP

A11

DQ15

HY57V641620HGLT-P

HL-2030/2040/2070N SERVICE MANUAL

C103

C33

RA10

RA10

RA10

RA10

RA11

RA11

RA11

RA11

RA12

RA12

RA12

RA12

RA13

RA13

RA13

RA13

TP196

TP197

TP198

TP199

C32

C103

4

3

2

1

4

3

2

1

4

3

2

1

4

3

2

1

1

3

9

14

27

43

49

6

12

C34

28

41

46

52

54

TP194

2

4

5

7

TP195

8

10

11

13

TP193

42

44

45

47

TP192

48

50

51

53

C103

C65

5

6

7

8

5

6

7

8

5

6

7

8

5

6

7

8

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

33

L13

BLM18PG181SN1

L14

BLM18PG181SN1

L15

BLM18PG181SN1

L16

BLM18PG181SN1

C103

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

VDD3

0V

DATA[15-0]

3B

Fig. 3-12

3-11

Confidential

CHAPTER 3 THEORY OF OPERATION

A 128Mbit SDRAM (x 16bit) is used as the RAM.

< HL-2070N >

SDCSN0

1-3D

ADR[16]

1-3B/1D/4F

ADR[17]

1-3B/1D/4F

ADR[18]

1-3B/1D/4F

ADR[19]

1-3B/1D/4F

ADR[20]

1-3B/1D/4F

SDCLK0

1-3D

ADR[13]

ADR[1]

ADR[2]

ADR[3]

ADR[4]

ADR[5]

ADR[6]

ADR[7]

ADR[8]

ADR[9]

ADR[10]

ADR[11]

ADR[12]

ADR[14]

1-3B/1D/4F

ADR[15]

1-3B/1D/4F

VDD3

R115

0

TP157

TP163

SDRAM

U14

19

CS

18

RAS

17

CAS

16

WE

15

LDQM

39

UDQM

38

CLK

37

CKE

36

NC36

40

NC40

20

BA0

21

BA1

23

A0

24

A1

25

A2

26

A3

29

A4

30

A5

31

A6

32

A7

33

A8

34

A9

22

A10/AP

35

A11

HY57V281620HCT-H

VDD1

VDDQ3

VDDQ9

VDD14

VDD27

VDDQ43

VDDQ49

VSSQ6

VSSQ12

VSS28

VSS41

VSSQ46

VSSQ52

VSS54

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ9

1

3

9

14

27

43

49

C103

C155

RA11

RA10

RA9

RA8

C140

C150

1

2

33

3

4

1

2

33

3

4

1

2

33

3

4

1

2

33

3

4

6

12

28

41

46

52

54

2

4

5

7

8

10

11

13

42

44

45

47

48

50

51

53

C103

C103

C152

8

7

6

5

8

7

6

5

8

7

6

5

8

7

6

5

VDD3

C103

0V

DATA[0]

DATA[1]

DATA[2]

DATA[3]

DATA[4]

DATA[5]

DATA[6]

DATA[7]

DATA[8]

DATA[9]

DATA[10]

DATA[11]

DATA[12]

DATA[13]

DATA[14]

DATA[15]

ADR[23-1]

1-3B/1D/4D

DATA[15-0]

1-1B/1E

Fig. 3-13

3-12

Confidential

1.3.7 EEPROM

The EEPROM is BR24C04 type of two-wire method with a 512 x 8bit configuration.

< HL-2030/2040 >

The EEPROM is BR24C64 type of two-wire method with a 4096 x 8bit configuration.

< HL-2070N >

U6

EESCL

EESDA

MB87S1200

1.3.8 Reset circuit

EESCL

129

130

HL-2030/2040/2070N SERVICE MANUAL

EEPROM 4kbit

TP21

R25

4C

100

U2

TP20

6

SCL

7

TEST

1

A0

2

A1

3

A2

0V

BR24L04F-WE2

VCC

VSS

SDA

8

VDD3

VDD3

C22

C103

4

0V

R22

4.7k

TP9

5

R15

100

TP38

EESDA

4C

Fig. 3-14

EEPROM 32kbit

U1

TP5

R3

EESDA

4D

100

TP3

6

SCL

7

TEST

1

A0

2

A1

3

0V

A2

BR24L32F-WE2

VCC

VSS

SDA

8

VDD3

VDD3

C5

C103

4

0V

R2

4.7k

TP2

5

R1

100

TP1

EESDA

2D

Fig. 3-15

The reset IC is a S-B0928ALMP. The reset voltage is 2.8V (typ.) and the low period of reset is

22.4ms (typ.)

< HL-2030/2040 >

RSTN

RESET IC

C10

C473

U1

5

10%(B)

0V

TP11

CD

4

NC

3

GND

S-80928ALMP-DAR

VDD3

C5

C103

2

VCC

TP86

1

VOUT

R23

1k

7A/2-1B/2-4E

TP36

C20

C101

0V

U4

96

RSTN

Bellona

Fig. 3-16

< HL-2070N >

0V

RESET IC

C64

C473

10%(B)

5

4

TP69

3

C56

C103

U5

CD

VCC

NC

GND

VOUT

S-80928ALMP-DAR

VDD3

2

1

TP76

R55

1k

RSTN

2-5D/3-1B

TP77

C65

C101

U6

193

RSTN

0V

MB87S1200

Fig. 3-17

3-13

Confidential

CHAPTER 3 THEORY OF OPERATION

1.3.9 Panel I/O

The interface with the panel board is connected by ASIC.

< HL-2030/2040 >

PNLLED3

1-4E

PNLLED2

1-4E

PNLLED1

1-4D

PNLLED0

1-4D

PNLSW0

1-3D

PNEW_SEN

FRONT_COVER_SEN

1-4D

1-3E

< HL-2070N >

PNLLED3

1-2E

PNLLED2

1-2E

PNLLED1

1-2E

PNLLED0

1-2E

PNLSW0

PNEW_SEN

FRONT_COVER_SEN

1-1E

1-4B

1-4A

TP114

TP118

TP122

TP125

TP128

TP55

TP54

0V

0V

C102

TP80

TP71

TP60

TP53

TP68

TP86

TP89

C38

PANEL

0V

C80

C136

C101

C101

L1

0

L2

0

L3

0

L4

0

C101

C137

C101

0V

2

PNLLED3

3

PNLLED2

4

PNLLED1

5

PNLLED0

8

PNLSW0

6

PNEW_SEN

7

F_COVER_SEN

1

GND

9615S-08A-PP-A

R87

150

150

R88

R89

150

R91

150

R92

1k

C101

VDD3

VDD3

C81

R101

4.7k

C83

C101

C79

R103

2.2k

R98

1k

C85

C101

0V

100

R51

100

R52

C40

C102

CN6

Fig. 3-18

PANEL

L8

C101

R28

2.2k

L9

L10

L11

C61

C101

0

0

0

0

C196

C101

0V

2

3

4

5

8

6

7

1

9615S-08A-PP-A

150

R48

150

R44

R39

150

R36

150

R50

1k

100

100

C76
C101

VDD3

VDD3

C73

C101

R31

4.7k

C68

C195

C101

0V

R45

R46

R53

C60

1k

C102

C52

C101

C55

C102

0V

CN6

PNLLED3

PNLLED2

PNLLED1

PNLLED0

PNLSW0

PNEW_SEN

F_COVER_SEN

GND

Fig. 3-19

3-14

Confidential

1.3.10 Video I/O

The video signal from ASIC is directly output.

< HL-2030/2040 >

U4

VDON

VENBN

REV0

Bellona

<HL-2070N>

77

79

54

U6

MB87S1200

VDON

VENBN

HL-2030/2040/2070N SERVICE MANUAL

TP22

VDD3

VDD3

R17

1k

C102

TP19

TP12

TP15

VDD5

C3
C103

BLM18BD221S

0V

C17

C27P

VBDN

R11

10k

R13

4.7k

R10

0V

0V

TP29

3C

68k

C1

C104

C101

R16

0

VDD3

R21

680

C15

C4

R14

LD

CN3

5

BD

6

ENB

4

5V

3

DATA

2

GND

1

LDHALF

IMSA-9615S-06A-PP-A

Fig. 3-20

VDD3

R6

C102

1k

VDD5

0V

R7

BLM18RK221SN1D

(1608)

C27

TP13

VBDN

1E

114

117

TP11

119

VSH

VDD3

R15

10k

R13

4.7k

R14

68k

C9

C104

0V

0V

R5

0

VDD3

R16

680

TP14

C7

C101

C8

C27P

C10

C103

LD

CN3

5

BD

4

5V

2

GND

3

DATA

6

ENB

1

LDHALF

IMSA-9615S-06A-PP-A

Fig. 3-21

3-15

Confidential

CHAPTER 3 THEORY OF OPERATION

1.3.11 Power supply

+5V is supplied from LVPS. +5V is used by IEEE1284 interface.

In addition, +3.3V is generated by the 3-pin regulator from +5V supplied from the LVPS. +1.9V
is used for the CPU within the ASIC and the logic circuit.

24V is used for the motors and solenoids.

<HL-2030/2040>

RELAYOFF (FX OPTION)

H: RELAY ON

L: RELAY OFF

HEATERON

H: HEATER ON

L: HEATER OFF

VDD5

U8

8

THM

VDD3

CENTER_THM

EDGE_THM

VDD3

V+

LM393P

CN8

1

2

3

4

C142

C101

V-

0V

4

0V

L6 (1608)

0

C141

C77

1-2A/1-7A/4E

VDD3

C101

RLYOFFN

HEATERON

HTLIMITN

C103

RSTN

ANALOG

C103

C101

VDD3

1-4D

1-4D

1-3D

ANALOG

C102

0V

TP132 TP138

R97

470k

10%(B)

C101

C88

C104

1SS355

0V

0V

VDD3

18k

18k

R127

R128

D4

1%(F)

1%(F)

R126

10k

R129

10k

0V

TP137

C101

C103

C104

C103

R94

1.5k

18k

0V

R95

1%(F)

1%(F)

0V

0V

TP151

TP152

TP129

R130

0

R125

0

LVPS

1

RELAYOFFN

7

HEATERONN

6

+24V

5

24RET

9

S0V

8

+5V

4

TNRLED

3

FRONT_SEN

2

PEDG_SEN

B9B-PH-K-S(LF)

CN11

C220

0V

TP165

C116

C134

R139
68k

C101

L5

C119

C102

0V

C123

C104

C122

C103

C138

+

C104

(1608)

C126

C102

0V

C135

C101

0V

C130
C102

TP162

R96
22k

1%(F)

U8

+

3

1

-

2

LM393P

VDD3

R81

10k

TP119

5

0V

REG_FRONT_SEN

PEDG_SEN

6

1-3E

THM1

R82

10k

R135

1k

U8

+

-

LM393P

1-3E

1-3E

C46

TP163

7

TP64

TP65

C102

Q3

4.7k

B

47k

DTC143ZUA

R56

R57

C45

C102

0V

TP167 TP166

VDD24

TP170 TP168

24RET

TP164

0V

10V 12V

VDD5

C

TNRLED

1-3E

E

0V

VDD3

R137
68k

100

100

<HL-2070N>

RELAYOFF (FX OPTION)

H: RELAY ON

L: RELAY OFF

HEATERON

H: HEATER ON

L: HEATER OFF

U13

8

V+

V-

4

LM393P

THM

CN9

L7

1

VDD3

EDGE_THM

VDD3

2

3

4

CENTER_THM

VDD5

0V

(1608)

0

VDD3

HEATERON

C147

C135

C101

RLYOFFN

HTLIMITN

C103

RSTN

1-2C/2-5D

VDD3

0V

1-2F

1-2F

1-2F

ANALOG

ANALOG

C134

C101

TP165

C151

10%

C104

0V

0V

0V

1SS355

R103

18k

R104

18k

D3

1%(F)

1%(F)

R123

470k

R102

10k

R105

10k

VDD3

TP132

0V

C126

C103

R119

1.5k

18k

TP155

1%(F)

R117

1%(F)

TP140

0V

TP141

0V

Fig. 3-22

TP159

3

2

R94
0

R95

0

C127

C103

U13

+

-

1-6B

R121
22k

THM1

1%(F)

LM393P

R120
10k

R118
10k

1

VDD3

0V

TP164

TP161

5

6

REG_FRONT_SEN

PEDG_SEN

LVPS

C104

+

CN12

1

RELAYOFFN

7

HEATERONN

6

+24V

5

24RET

9

S0V

8

+5V

4

TNRLED

3

FRONT_SEN

2

PEDG_SEN

B9B-PH-K-S(LF)

L6

C163
C102

0V

C154

C102

1-2F

C193

TP239

TP56

C101

R127

68k

0V

0V

C158

C103

10V 12V

C220

C159

C102

C157

(1608)

C31

0V

C194

C101

TP119 TP133

VDD24

TP67

Q3

4.7k

47k

DTC143ZUA

C160

C102

24RET

TP160

0V

VDD5

C

TNRLED

E

0V

VDD3

R125
68k

100

100

R122

1k

U13

TP167

+

7

C161

TP99

TP102

C102

B

R124

R126

0V

-

LM393P

1-4A

1-4A

Fig. 3-23

3-16

Confidential

1.4 Power Supply

1.4.1 Low-voltage power supply

The power supply uses a switching regulation system to generate the regulated DC power
(+5V and +24V), which are converted from the AC line.

The regulated output and the production code of each power supply are listed below;

Regulated Output Production Code
+5V / 0.7A
+24V / 1.5A

For the circuit diagram of the low-voltage power supply PCB, see APPENDIX 8.or 9. ‘LOW-

VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM’ in this manual.

100V: MPW5215
200V: MPW5115

HL-2030/2040/2070N SERVICE MANUAL

(Heater)

Thermal

Fuse

Fuse

Lightning

Absorber

Surge

Line

Filter

Fuse

Rectifier

5V

Regulation

Circuit

Thermostat

Heater

Circuit

Lamp

Feedback

Oscillator

(Main Circuit)

24V

5V

Fig. 3-24

3-17

Confidential

CHAPTER 3 THEORY OF OPERATION

1.4.2 High-voltage power supply

The high-voltage power supply generates and outputs the voltages and currents for the
charging, development and transfer functions.

For the circuit diagram of the high-voltage power supply PCB, see APPENDIX 10. ‘HIGH-

VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM’ in this manual.

24V

3.3V

Current

Regulator

B1

Voltage

Regulator

Q20

Current

Regulator

B50

Voltage

Regulator

B70

Supply
Roller

Developer
Roller

Transfer Roller

Cleaning Brush

Exposure

Drum

Corona

Unit

GND

Voltage

Circuit

Voltage

Circuit

Fig. 3-25

3-18

Confidential

2. MECHANICS

2.1 Overview of Printing Mechanism

Eject roller ASSY

Rear cover

Fixing unit

Heat roller

Pressure roller

Halogen heater Corona wire Polygon motor

HL-2030/2040/2070N SERVICE MANUAL

Blade Laser unit

Pinch roller

Drum/toner ASSY

Paper feed roller

Regist front actuator

Pinch roller

Separation roller
Tail edge actuator

Pressure roller

Separation pad

Paper tray

Paper

Brush

Exposure drum

Transfer roller

Developer roller

Supply roller

Regist rear actuator

Feed roller

Up plate

Fig. 3-26

3-19

Confidential

CHAPTER 3 THEORY OF OPERATION

2.2 Paper Transfer

2.2.1 Paper supply

The feed roller picks up a few sheets or one sheet of paper from the paper tray every time it is
rotated and feeds it to the separation roller.

Paper feed roller

Feed roller

Regist front actuator

Fig. 3-27

Separation roller Pinch roller

Pinch roller

Tail edge actuator

Pressure roller

Separation pad

3-20

Confidential

HL-2030/2040/2070N SERVICE MANUAL

(1) The paper is gripped between the separation roller and separation pad and separated into

individual sheets. The separation roller is connected to the gear 52 P/R.

(2) The section of the gear 52 P/R, where there is no cog, is normally fixed at the position as

shown in the figure below by the P/R solenoid ASSY.
(3) Therefore, the main motor drive is not transmitted to the gear 52 P/R.
(4) When the paper is fed, the P/R solenoid ASSY is activated first.
(5) Then, the gear 52 P/R is pulled by the spring extension P/R so that the gears are engaged.
(6) The main motor drive is transmitted to the gear 52 P/R, and the separation roller is turned.

The paper drawn out of the paper tray pushes against the regist front actuator, and the paper
top position or absence of paper is detected by the actuator movement. The tail edge actuator
detects the end of the paper fed.

Separation roller

Spring extension P/R

Gear 52 P/R

No cog

3

Gear 40/50 F/R

Spring extension P/R

Solenoid release spring P/R

“A”

1

Gear 52 P/R

2

Fixation

P/R solenoid ASSY

<“A” arrow view>

Fig. 3-28

6

4

5

3-21

Confidential

CHAPTER 3 THEORY OF OPERATION

2.2.2 Push-up function of paper tray

In order to improve the transfer function of the paper tray, the pressure plate in the paper tray
is lifted up by the motor.

(1) The pressure plate comes down while the paper tray is inserted into the machine. When

the main motor rotates, it drives through some gears to actuate the gear 45 arm/FR. The

driving force that 45 arm/FR received is to be transferred to gear 13 center P/R, it then

drives through some gears to gear 17. The gear 17 actuates the up plate gear of the

paper tray to push up the pressure plate.
(2) When the pressure plate is pushed up, the paper placed on the pressure plate is

contacted with the pick up roller holder ASSY so that the pick up roller holder ASSY is

pushed up.
(3) When the pick up roller holder ASSY is pushed up more, one end of the link lever

assembled on the pick up roller holder ASSY is pushed up. Since the center of the link

lever is held as a fulcrum, the other end of the link lever comes down.
(4) The other end of the link lever is contacted with the hook B and hook C so that the hook B

is pushed down when the link lever comes down.
(5) When the hook B is pushed down, the catch of the hook B is released from the lock of the

sector cam.
(6) The sector cam is rotated by approximately three quarters when the catch of the hook B is

released.
(7) Then, the sector cam is stopped rotating by the catch of the hook C. (The hook B and

hook C is connected with the spring. When the hook B is pushed down, the hook C is

also pushed down, and the catch of the hook C is released from the lock of the sector

cam.)
(8) When the sector cam is fixed at the position of the catch of the hook C, the hook A is lifted

up by the sector cam.
(9) The inside gear of the gear 13 center P/R, which has been fixed, is released.
(10) When the inside gear of the gear 13 center P/R is released, the central gear of the gear

13 center P/R is stopped rotating. Then, the gear pushing up the pressure plate in the

paper tray is stopped so that the pressure plate is stopped lifting up.
The gear 13 center P/R consists of the three gears, and power of the main motor is added

onto the outside gear. When the inside gear is fixed while the main motor power being added,
the central gear is started rotating. When the fixed inside gear is released, the central gear is
stopped, and the inside gear is rotated.

3-22

Confidential

HL-2030/2040/2070N SERVICE MANUAL

Link lever

Hook B

Hook C

Pickup roller holder ASSY

Pressure plate

Hook spring

Sector cam

Paper tray

Up plate gear

Up plate

Gear 17

Table side

Hook C

Hook A

Link lever

Hook B

Gear 13 center P/R

Sector cam

Rotated by
approx. three
quarters.

Back side

Fig. 3-29

3-23

Confidential

CHAPTER 3 THEORY OF OPERATION

2.2.3 Paper registration

After the paper top position is detected by the regist front actuator, the paper, separated into
individual sheets by the separation roller, is fed further for a specified time, and the paper top
position reaches the paper feed roller so that the paper skew is adjusted. Then, the F/R
solenoid is turned off, the paper feed roller starts turning, and the paper is fed to the transfer
roller in the drum/toner ASSY.

Exposure drum

Drum/toner ASSY

Regist rear actuator Transfer roller

Paper feed roller

Fig. 3-30

The regist rear actuator in the path from the feed roller to the transfer roller controls the first
print position on the paper. The printer starts transferring an image when a definite time
passes after the paper is passed through the regist rear actuator.

3-24

Confidential

2.2.4 Paper eject

After the printing image on the exposure drum is transferred onto the paper, the paper is fed
to the fixing unit to fix unfixed toner onto the paper by the heat roller and the pressure roller in
the fixing unit.

Afterwards, the paper is ejected from the fixing unit. The paper eject actuator detects whether
the paper is ejected correctly or not.

After the paper exits from the heat roller, the paper is turned by the rear cover and ejected
face down into the top output tray through the eject roller ASSY.

Rear cover

HL-2030/2040/2070N SERVICE MANUAL

Eject roller ASSY

2.3 Drum Unit

2.3.1 Exposure drum

Generates the latent electrostatic image and develops the image on the drum surface.

2.3.2 Primary charger

Forms a uniform charge on the drum surface.

(1) Corona wire

Generates the ion charge on the drum.

(2) Grid

Spreads the ion charge evenly over the drum surface.

2.3.3 Transfer roller

Paper eject actuator

Fig. 3-31

Pressure Roller

Heat roller

Transfers the toner image to the paper from the drum surface.

2.3.4 Cleaner

Removes the paper dust or dirt on the surface of the exposure drum.

3-25

Confidential

CHAPTER 3 THEORY OF OPERATION

C

lif

C

lif

)

2.4 Toner Cartridge

Develops the electrostatic latent image on the exposure drum with toner and forms the visible
image.

2.4.1 Toner life end mode

The life of the toner cartridge is starter: 1,500, standard: 2,500 pages at the 5% coverage. In
the case of low- duty printing, “Toner Life End” is indicated by lighting Toner LED before toner
runs out because the developer roller surface or other toner sealing is worn out due to rotation
of the rollers. The upper limit of the drum rotation is 45,000 = 3000 sheets x 15 rotations.

The following graph shows the number of printable pages in the case of A4 printing.

HL-2030/2040/2070N (Standard toner)

Page/job 123456789101112

artridge

e

(Always power on)

artridge

e

(Power ON/OFF per job)

Toner empty (5%)
Toner empty (4%)
Toner empty (3%)
Toner empty (2%)
Toner empty (1%)

3,000 4,663 5,720 6,452 6,988 7,397 7,721 7,982 8,198 8,380 8,534 8,668
1,957 3,297 4,272 5,014 5,597 6,067 6,455 6,780 7,056 7,293 7,500 7,681

2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500 2,500
3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125 3,125
4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167 4,167
6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250 6,250

12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500 12,500
Cartridge life = 15a x 3000 / ( 4.3 x (a - 1) + 15 ) a : Page / job
Cartridge life+ON/OFF = 15a x 3000 / ( 4.3 x (a - 1) + 15 + 8 )
Cartridge life (Mechanical lim it ) : 3000 ( 1page / job )

Cartridge life
(Always power on)

14,000
12,000
10,000

8,000

Cartridge life
(Power ON/OFF per job)

Toner empty (5%)
Toner empty (4%)
Toner empty (3%)
Toner empty (2%)
Toner empty (1%

6,000

Printable pages

4,000
2,000

0

123456789101112

Page / Job

3-26

Confidential

2.4.2 New toner detection mechanism

The printer detects the amount of the remaining toner with the sensor and indicates the timing
to replace the toner cartridge by lighting up the Toner LED to the user. The problem such as
toner leak or image defect may occur when low-duty printing is continued for a long time. To
prevent such a problem, the printer provides the function lighting up the Toner LED when the
toner is used to a certain degree to indicate it to the user.

When replacing the toner cartridge with a new one, the printer detects that the toner cartridge
is replaced with a new one by the new toner detection switch and cancels that the Toner LED
lights up.

The mechanism to detect the new toner cartridge is as follows:

(1) A new toner cartridge is installed into the drum unit, and the drum unit is installed into the

printer.

(2) The reset gear of the toner cartridge is contacted with the new toner actuator to push the

new toner actuator.

(3) Then, the new toner actuator pushes the new toner detection switch so that it is detected

that a new toner cartridge is installed.

(4) When the toner cartridge is installed into the printer, the reset gear is rotated gradually by

the main motor drive and moved to the position of “Toner in use”.

When the reset gear is moved to the position of “Toner in use”, the new toner actuator is
pulled back by the new toner actuator spring and returned to the original position. When
the reset gear is at the position of “Toner in use”, the reset gear is not returned to the
original position since the reset gear and drive gear of the main motor are not engaged,
and the reset gear is not rotated.

HL-2030/2040/2070N SERVICE MANUAL

New toner actuator

New toner sensor

New toner actuator

Drum/toner ASSY

Main frame L

New toner sensor

Reset gear

Fig. 3-32

3-27

Confidential

CHAPTER 3 THEORY OF OPERATION

When the new toner detection switch detects that the toner cartridge is replaced with a new
one, the developing bias voltage is initialized at the same time.

The toner used for the printer has a property that print density is light first and gradually darker
in the course of usage. The developing bias controls the toner property so that the print
density is constant from first to last.

[Density]
[Voltage]

Toner property Actual control

Print density

[Density]
[Voltage]

Print density

Bias voltage

[Used toner amount] [Used toner amount]

To always obtain a print result of a constant density, the printer counts the number of print
pages immediately after the toner cartridge is replaced and changes the bias voltage
according to the accumulated number of prints with the toner cartridge.

The bias voltage is changed with the steps described below:
(1) When the new toner sensor detects that the toner cartridge is replaced with a new (full)

one, the developing bias is set to 450V (initialized).

(2) After that, the bias voltage is stepped down according to the number of prints.

2.4.3 Counter reset during indication of “Toner Life End”

The counter resetting method during indication of “Toner Life End” depends on the cause of
toner life end and the condition of the inserted toner cartridge. Refer to the following table for
details.

Toner Life End

(Toner empty)

Bias voltage

Toner Life End
(Developer count full)

When a used toner is
inserted (Reset gear
is at the position of in
use.)

When a new toner is
inserted (Reset gear
is at the position of
factory set.)

Toner exchange count: +0
Page counter of each toner: Continued

Coverage of each toner: Continued
Development bias: Reset (Default)
Toner exchange count: +1

Page counter of each toner: Reset (0)
Coverage of each toner: Reset (0)
Development bias: Reset (Default)

3-28

Not used.

Confidential

2.5 Print Process

r

A

2.5.1 Charging

The drum is charged to approximately 897V by an ion charge which is generated by the
primary charger. The charge is generated by ionization of the corona wire, which has a DC
bias from the high-voltage power supply applied to it. The flow of the ion charge is controlled
by the grid to ensure it is distributed evenly on the drum surface. The aluminum drum sleeve
in the exposure drum is grounded.

Voltage
circuit

HL-2030/2040/2070N SERVICE MANUAL

-

+

-

-

+

-

+

-

-

+

-

-

---

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

luminum drum sleeve

Organic photoconductor layer

Grid

HVPS

Exposure
drum

The primary charge uses a corona wire, but since the drum is positively charged, only less
than 1/10 of the usual quantity of ozone is generated compared with the negatively charged
drum. The level of ozone expelled from the printer is therefore not harmful to the human body.
Applicable safety standards have been complied with.

2.5.2 Exposure stage

After the drum is positively charged, it is exposed to the light emitted from the laser unit.

Laser detecto

Toric Lens

Laser diode Motor

Corona wire

CO lens

Drum

Paper

Laser beam

f θ lens

Fig. 3-33

Laser beam

Polygon mirror

Fig. 3-34

< Laser exposure unit >

1. The laser beam radiated from a laser diode inside the laser unit are concentrated into a
constant width by a slit in the CO lens cell and then reflected by a polygon mirror rotating
at high speed.

2. The laser beam reflected by the polygon mirror are refracted by the theta lens and
radiated from the right through to the left end of the reflection mirror as the polygon mirror
rotates. At this time, blur of the vertical direction of the laser beam by inclination of a
polygon mirror is corrected by passing a Toric lens.

3-29

Confidential

CHAPTER 3 THEORY OF OPERATION

3. The laser beams reflected by the reflection mirror go straight toward the exposure drum

below it, then expose the exposure drum.

The area exposed to the laser beam is the image to be printed. The surface potential of the
exposed area is reduced, forming the electrostatic image to be printed.

Surface
potential (V)

1 Cycle of drum

+897

+400

+150

Drum
sleeve

0

2.5.3 Developing

Developing causes the toner to be attracted to the electrostatic image on the drum so as to
transform it into a visible image.
The developer consists of a non-magnetic toner. The developer roller is made of conductive
rubber and the supply roller (which is also made of conductive sponge) rotate against each
other. The toner is charged and carried from the supply roller to the developer roller. The
toner adheres to the developer roller and is conveyed to the exposure drum at an even
thickness controlled by the blade. The toner is nipped between the developer roller and the
drum and developed onto the latent image on the drum. The electrostatic field between the
drum and the developer roller, which is DC-biased from the high-voltage power supply, creates
the electrostatic potential to attract toner particles from the developer roller to the latent image
area on the drum surface.

2 1

(a)

(b)

3

Time

Fig. 3-35

Primary charging

1

Laser beam exposure and developing

2

(a) Unexposed area

(Non image area)

(b) Exposed area

(Image area)

Transfer the image to paper

3

Corona wire

Developer roller

Exposure drum

Transfer roller

Blade

Supply roller

Fig. 3-36

3-30

Confidential

2.5.4 Transfer

(1) Transfer process

After the drum has been charged and exposed, and has received a developed image, the
toner formed is transferred onto the paper by applying a negative charge to the back of
the paper. The negative charge applied to the paper causes the positively charged toner
to leave the drum, and adhere to the paper. As a result, the image is visible on the paper.

(2) Cleaning process of transfer roller

If the toner is not transferred onto the paper perfectly it is possible that there may be
residual toner on the drum which will adhere to the transfer roller. The transfer roller
voltage changes to a positive voltage during non-printing rotation of the drum. Therefore
the transfer roller is cleaned by returning the positively charged toner adhering to the
transfer roller onto the exposure drum.

2.5.5 Fixing stage

The image transferred to the paper by static electricity is fixed by heat and pressure when
passing through the heat roller and the pressure roller in the fixing unit . The thermistor keeps
the surface temperature of the heat roller constant by detecting the surface temperature of the
heat roller and turning on or off the halogen heater lamp.

HL-2030/2040/2070N SERVICE MANUAL

Heat roller

Fixing unit

Pressure roller

Fig. 3-37

Halogen heater

3-31

Confidential

CHAPTER 3 THEORY OF OPERATION

2.6 Sensors

Sensor name Type Located on

Cover sensor Mechanical switch Main frame L

Main PCB

Toner LED PCB

Photo sensor Main frame R

(Light emission)

Toner sensor PCB

Photo sensor Main frame L

(Light reception)

Paper eject sensor Photo sensor Main PCB

Regist front sensor Photo sensor Regist sensor PCB

Regist rear sensor Photo sensor High-voltage PS PCB

Tail edge sensor Photo sensor Regist sensor PCB

New toner sensor Mechanical switch Main frame L

New toner sensor

Main frame R

Toner LED PCB
(Light emission)

Chute

Paper eject sensor

High-voltage PS PCB

Toner sensor PCB
(Light reception)

Main frame L

Regist rear sensor

Cover sensor

Fig. 3-38

Regist sensor PCB

Regist front sensor

Tail edge sensor

3-32

Confidential

HL-2030/2040/2070N SERVICE MANUAL

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

1. SAFETY PRECAUTIONS

To avoid creating secondary problems by mishandling, follow the warnings and precautions below

during maintenance work.

WARNING

• Always turn off the power switch and unplug the power cord from the power outlet

before accessing any parts inside the printer.

• Some parts inside the printer are extremely hot immediately after the printer is used.

When opening the front cover or rear cover to access any parts inside the printer,
never touch the red colored parts shown in the following figures.

CAUTION:

!

(1) Be careful not to lose screws, washers, or other parts removed.

(2) Be sure to apply grease to the gears and applicable positions specified in this chapter.

(3) When using soldering irons or other heat-generating tools, take care not to accidentally

damage parts such as wires, PCBs and covers.

(4) Before handling any PCBs, touch a metal portion of the equipment to discharge any static

electricity charge on your body, or the electronic parts or components may be damaged.

(5) When transporting PCBs, be sure to wrap them in the correct protective packaging.

(6) Be sure to replace self-tapping screws correctly, if removed. Unless otherwise specified,

tighten screws to the following torque values.

TAPTITE, BIND or CUP B
M3: 0.5N y m
M4: 0.8N y m

TAPTITE, CUP S
M3: 0.8N y m

(7) When connecting or disconnecting cable connectors, hold the connector body, not the

cables. If the connector has a lock, release the connector lock first to release it.

(8) After a repair, check not only the repaired portion but also all connectors. Also check that

other related portions are functioning properly before operational checks.

4-1

Confidential

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

2. DISASSEMBLY FLOW

Basic Operation

1

AC Cord

5s / 5s

4

Rear Cover

7

Side Cover R

6

Side Cover L

8-3

Top Cover / Paper Stopper

12

High-Voltage PS PCB ASSY

16-1

Scanner Unit ASSY

/ New Toner Actuator Spring

2

Disassembly

Drum/ Toner ASSY

/ Re-Assembly (sec.)

3

Paper Tray

5s / 5s

5

Rear Chute Cover

5s / 5s

10s / 10s

8-1

Rear Cover Stopper

15s / 15s

15s / 15s

15

12

High-Voltage PS PCB ASSY

13

10s / 10s

LVPS

60s / 60s

23

Fan Motor 60 Unit

20s / 25s

Main PCB

Toner LED PCB ASSY

40s / 60s

45s / 50s

14-2

Panel PCB

10s / 15s

14-1

SW Key

20s / 20s

20s / 25s

40s / 40s

New Toner Actuator

16-2

Filter / Air Duct ASSY

25

5s / 5s

15s / 15s

20s / 25s

10s / 10s

8-2

Inner Chute

24

/ LED Holder

13

29

30

31

32

33

34

9

Front Cover

40s / 50s

10

Pickup Roller Holder ASSY

60s / 120s

10s / 10s

15s / 15s

Main PCB

45s / 50s

Main Motor ASSY

30s / 30s

Drvelop Joint

5s / 5s

P/R Solenoid ASSY

10s / 20s

F/R Solenoid ASSY

20s / 35s

Main Frame L

10s / 10s

Main Frame R

15s / 15s

17

Sub Chute ASSY

10s / 10s

18

Link Lever

19

22

11

Regist Rear Actuator

Fixing Unit

20s / 20s

20

Regist Front Actuator

21

Regist Sensor PCB ASSY

10s / 10s

Rear Actuator

10s / 15s

/ Regist Rear Spring

10s / 15s

/ Regist Front Spring

30s / 45s

10s / 15s

26

New Toner Sensor

27

28

Toner Sensor PCB ASSY

15s / 15s

Cover Sensor

20s / 20s

10s / 10s

4-2

Confidential

3. DISASSEMBLY PROCEDURE

A

3.1 AC Cord

(1) Disconnect AC cord from the printer.

Printer

C cord

HL-2030/2040/2070N SERVICE MANUAL

3.2 Drum/Toner ASSY

(1) Open the front cover and remove the drum/toner ASSY.

Fig. 4-1

Front cover

Drum/toner ASSY

Fig. 4-2

4-3

Confidential

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

3.3 Paper Tray

(1) Close the front cover and pull out the paper tray.

(2) Remove the paper from the paper tray.

Front cover

Paper tray

(3) Remove the separation pad holder ASSY and the separation pad spring.

Separation pad spring

Fig. 4-3

Separation pad holder ASSY

Separation pad holder ASSY

Screwdriver

Hooks

Fig. 4-4

4-4

Confidential

3.4 Rear Cover

(1) Remove the rear cover.

NOTE:

Remove the “A” section of the rear cover while opening the rear cover slightly.

Rear cover

“A”

Pin

HL-2030/2040/2070N SERVICE MANUAL

Boss

Main frame R

Rear cover

Rear cover

Fig. 4-5

4-5

Confidential

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

3.5 Rear Chute Cover

(1) Remove the rear chute cover.

Boss

Rear chute cover

Rear chute cover

Rear chute cover

Hook

Paper eject actuator

Fig. 4-6

(2) Remove the paper eject actuator and the eject actuator spring.

Eject actuator spring

4

Paper eject actuator

Paper eject actuator

3

Fig. 4-7

1

2

Rear chute cover

Paper eject actuator

Hook

4-6

Confidential

3.6 Side Cover L

(1) Open the front cover.

(2) Remove the two bind B M4x12 taptite screws, and then remove the side cover L.

HL-2030/2040/2070N SERVICE MANUAL

Taptite, bind B M4x12

3

Hook

Side cover L

3.7 Side Cover R

2

1

Fig. 4-8

Hooks

Printer

Front cover

Taptite, bind B M4x12

(1) Remove the two bind B M4x12 taptite screws, and then remove the side cover R.

Taptite, bind B M4x12

Hook

2

3

Fig. 4-9

4

Side cover R

Hook

Hook

1

1

Taptite, bind B M4x12

4-7

Confidential

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

3.8 Top Cover / Paper Stopper

(1) Remove the bind B M4x12 taptite screw, and then remove the rear cover stopper.

Taptite, bind B M4x12

Main frame R

Hook

Fig. 4-10

Rear cover stopper

Hooks

(2) Remove the two bind B M4x12 taptite screws and the rear chute cover spring.

(3) Remove the inner chute.

Inner chute

Taptite, bind B M4x12

Rear chute cover spring

Taptite, bind B M4x12

Fig. 4-11

NOTE:
Re-assemble the inner chute while pushing onto the pinch roller of the inner chute with the
eject roller of the top cover.

Top cover

Eject roller

Pinch roller Inner chute

Fig. 4-12

4-8

Pinch roller

Confidential