Brother HL-1240, HL-1030, HL-1270N, HL-1250 Service Manual

Brother Laser Printer

SERVICE MANUAL

MODEL: HL-1030/1240/1250/1270N

R

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

September, 1999
SM-PRN001

© Copyright Brother 1999
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, and Macintosh are trademarks, registered in the United States and

other countries, and True Type is a trademark of Apple computer, Inc.
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 Laser Jet is a trademark of Hewlett Packard

Company.
IBM, IBM PC and Proprinter are registered trademarks of International Business Machines

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

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.

PREFACE

This service manual covers the
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: MAINTENANCE

Periodical replacements parts, consumable parts, etc.

CHAPTER 6: TROUBLESHOOTING

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

HL-1030/1240/1250/1270N

printers.

APPENDICES :

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.

Serial No. descriptions, Drum life & page counter, Diameter / circumference
of rollers, Connection diagrams, PCB circuit diagrams, etc.

i

TABLE OF CONTENTS

TABLE OF CONTENTS

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

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

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

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

2. OVERVIEW .............................................................................................................1-4

3. SPECIFICATIONS...................................................................................................1-5

3.1 Printing................................................................................................ ..............................1-5

3.2 Functions ..........................................................................................................................1-6

3.3 Electrical and Mechanical.................................................................................................1-7

3.4 Network (for HL-1270N only)............................................................................................1-8

3.5 Paper ................................................................................................................................1-8

3.5.1 Feedable paper................................................................................................................... 1-8

3.5.2 Paper cassette capacity....................................................................................................1-10

3.5.3 Print delivery..................................................................................................................... 1-10

3.6 Printing Area...................................................................................................................1-11

3.6.1 Effective printing area.......................................................................................................1-11

3.6.2 Print guaranteed area....................................................................................................... 1-11

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 for Windows

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

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

3.1 For Windows® Users.........................................................................................................2-3

3.2 For Windows

3.2.1 Install the drum unit................................................................ ............................................. 2-5

3.2.2 Load paper.......................................................................................................................... 2-5

3.2.3 Print a test page.................................................................................................................. 2-5

3.2.4 Connect the printer and the computer ................................................................................2-6

3.2.5 Install the printer driver from floppy disk............................................................................. 2-6

3.3 Using the USB Interface (for Windows® 98 only)..............................................................2-7

3.3.1 Connect the USB interface cable........................................................................................ 2-7

3.3.2 Install the USB driver.......................................................................................................... 2-7

3.3.3 Set the PC printer port ........................................................................................................ 2-9

3.4 For Macintosh (iMac and Power Macintosh) with USB Users Only..................................2-9

®

Users with No CD-ROM Drive...................................................................2-5

®

.....................................2-1

4. PAPER HANDLING ...............................................................................................2-10

4.1 Load Paper into the Paper Cassette...............................................................................2-10

ii

TABLE OF CONTENTS

4.2 Load Paper Manually......................................................................................................2-10

4.3 Two Side Printing (Manual Duplexing)............................................................................2-11

4.3.1 To print on both sides of the paper from the paper cassette ............................................ 2-11

4.3.2 To print on both sides of the paper from the manual feed slot..........................................2-12

5. CONTROL PANEL OPERATION...........................................................................2-13

5.1 Ready (Paper) LED Indications ......................................................................................2-13

5.2 Data (Toner) LED Indications .........................................................................................2-14

5.3 Drum LED Indications.....................................................................................................2-14

5.4 Alarm LED Indications ....................................................................................................2-14

5.5 Control Panel Button Operations....................................................................................2-15

5.6 Other Control Features...................................................................................................2-15

5.6.1 Sleep mode....................................................................................................................... 2-15

5.6.2 Test print mode.................................................................................................................2-16

6. NETWORK BOARD OPERATION (FOR HL-1270N ONLY) ..................................2-17

6.1 Preparing the BR-net Board............................................................................................2-17

6.1.1 Connect the Ethernet cable .............................................................................................. 2-17

6.1.2 Install the BRAdmin32: configuration utility (for Windows 95/98/NT 4.0 users only) ........2-17

6.1.3 Print configuration page....................................................................................................2-18

6.2 Functions ........................................................................................................................2-18

6.2.1 LED functions................................................................ .................................................... 2-18

6.2.2 Factory default setting.......................................................................................................2-18

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

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

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

1.2 Main PCB Block Diagram .................................................................................................3-4

1.3 Main PCB..........................................................................................................................3-7

1.3.1 ASIC.................................................................................................................................... 3-7

1.3.2 ROM.................................................................................................................................. 3-10

1.3.3 Flash ROM........................................................................................................................ 3-12

1.3.4 DRAM................................................................................................................................ 3-12

1.3.5 Optional RAM....................................................................................................................3-14

1.3.6 Optional serial I/O............................................................................................................. 3-15

1.3.7 PCI bus............................................................................................................................. 3-15

1.3.8 EEPROM........................................................................................................................... 3-16

1.3.9 Reset circuit...................................................................................................................... 3-16

1.3.10 Engine I/O......................................................................................................................... 3-17

1.4 Engine PCB ....................................................................................................................3-18

1.5 BR-net PCB (for HL-1270 only) ......................................................................................3-18

1.6 Power Supply..................................................................................................................3-19

1.6.1 Low-voltage Power Supply ............................................................................................... 3-19

1.6.2 High-voltage Power Supply............................................................................................... 3-20

2. MECHANICS .........................................................................................................3-21

2.1 Overview of Printing Mechanism ....................................................................................3-21

2.2 Paper Transfer................................................................................................................3-23

2.2.1 Paper supply.....................................................................................................................3-23

2.2.2 Paper registration................................................................ .............................................. 3-23

iii

TABLE OF CONTENTS

2.2.3 Paper eject..................................................................................................................3-24

2.3 Sensors .....................................................................................................................3-24

2.3.1 Cover sensors A and B................................................................................................ 3-24

2.3.2 Toner sensor ............................................................................................................... 3-25

2.4 Drum Unit...................................................................................................................3-25

2.4.1 Photosensitive drum....................................................................................................3-25

2.4.2 Primary charger...........................................................................................................3-25

2.4.3 Transfer roller ..............................................................................................................3-25

2.4.5 Cleaner........................................................................................................................3-25

2.5 Toner Cartridge..........................................................................................................3-25

2.6 Print Process.............................................................................................................3-26

2.6.1 Charging......................................................................................................................3-26

2.6.2 Exposure stage............................................................................................................3-26

2.6.3 Developing................................................................................................................... 3-27

2.6.4 Transfer....................................................................................................................... 3-28

2.6.5 Fixing stage .................................................................................................................3-28

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

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

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

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

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

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

3.3 Paper Cassette ............................................................................................................4-4

3.4 Network Board (for HL-1270N only)............................................................................4-10

3.5 Front Cover................................................................................................................4-11

3.6 TopCover..................................................................................................................4-12

3.7 Main Cover................................................................................................................4-13

3.8 Laser Unit..................................................................................................................4-15

3.9 Drive Unit...................................................................................................................4-16

3.10 Fixing Unit..................................................................................................................4-18

3.11 Base Plate.................................................................................................................4-27

3.12 Main PCB ASSY........................................................................................................ 4-29

3.13 Lower Tray Relay PCB ASSY (for HL-1250/1270N only) ............................................4-29

3.14 Low-voltage Power Supply PCB ASSY.......................................................................4-30

3.15 Engine PCB ASSY / High-voltage Power Supply PCB ASSY......................................4-31

3.16 Panel PCB ASSY.......................................................................................................4-33

3.17 Solenoid ASSY ..........................................................................................................4-33

3.18 Fan Motor ASSY........................................................................................................4-36

3.19 Toner Sensor PCB ASSY (Light Emission).................................................................4-37

3.20 Toner Sensor PCB ASSY (Light Reception) ...............................................................4-37

3.21 Paper Pick-up Roller ASSY........................................................................................4-38

3.22 Paper Feed Roller ASSY............................................................................................ 4-39

3.23 Outer Chute 1 ......................................................................................................... 4-39A

4. PACKING..............................................................................................................4-40

iv

TABLE OF CONTENTS

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

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

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

1.2 Toner Cartridge.................................................................................................................5-2

2. PERIODICAL REPLACEMENT PARTS...................................................................5-4

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

3.1 Cleaning the Printer Exterior.............................................................................................5-5

3.2 Cleaning the Drum Unit.....................................................................................................5-5

3.3 Cleaning the Scanner Window..........................................................................................5-6

3.4 Cleaning the Electrical Terminals .....................................................................................5-6

4. MTBF / MTTR..........................................................................................................5-7

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

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

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

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

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

2. OPERATOR CALLS & SERVICE CALLS ................................................................6-4

2.1 Operator Calls...................................................................................................................6-4

2.2 Service Calls.....................................................................................................................6-4

3. ERROR MESSAGES...............................................................................................6-6

3.1 Error Messages in the Status Monitor ..............................................................................6-6

3.2 Error Message Printouts...................................................................................................6-8

4. PAPER PROBLEMS................................................................................................6-9

4.1 Paper Load Problems.......................................................................................................6-9

4.2 Paper Jams.....................................................................................................................6-10

4.2.1 Clearing the jammed paper............................................................................................... 6-10

4.2.2 Causes & countermeasures.............................................................................................. 6-11

4.3 Paper Feeding Problems................................................................................................6-12

5. SOFTWARE SETTING PROBLEMS .....................................................................6-14

6. MALFUNCTIONS...................................................................................................6-18

7. IMAGE DEFECTS..................................................................................................6-23

7.1 Image Defect Examples..................................................................................................6-23

7.2 Troubleshooting Image Defect........................................................................................6-24

7.3 Location of Grounding Contacts .....................................................................................6-41

7.3.1 Drum unit .......................................................................................................................... 6-41

7.3.2 Printer body & paper cassette................................................................ ........................... 6-41

8. INCORRECT PRINTOUT ......................................................................................6-42

9. NETWORK PROBLEM (FOR HL-1270N ONLY)....................................................6-45

9.1 Installation Problem ........................................................................................................6-45

9.2 Intermittent Problem........................................................................................................6-46

9.3 TCP/IP Troubleshooting..................................................................................................6-47

9.4 UNIX Troubleshooting.....................................................................................................6-47

v

TABLE OF CONTENTS

9.5 Windows NT/LAN Server (TCP/IP) Troubleshooting......................................................6-48

9.6 Windows 95/98 Peer to Peer Print (LPR) Troubleshooting.............................................6-48

9.7 Windows 95/98 (or later) Peer to Peer (HP JetAdmin Compatible Method) Troubleshooting...6-49

9.8 Windows 95/98/NT 4.0 Peer to Peer Print (NetBIOS) Troubleshooting .........................6-49

9.9 Internet Print (TCP/IP) Troubleshooting..........................................................................6-49

9.10 Novell Netware Troubleshooting.....................................................................................6-50

9.11 AppleTalk Troubleshooting .............................................................................................6-50

9.12 Apple TCP/IP Printing (System 8.6 or later) ...................................................................6-51

9.13 Web Browser Troubleshooting (TCP/IP) ........................................................................6-51

10. INSPECTION MODE .............................................................................................6-52

10.1 Test Print Mode...............................................................................................................6-52

10.2 Inspection Mode..............................................................................................................6-53

APPENDICES

1. SERIAL NO. DESCRIPTIONS................................................................................ A-1

2. DIAMETER / CIRCUMFERENCE OF ROLLERS.................................................... A-3

3. PRINT SPEEDS WITH VARIOUS SETTINGS........................................................ A-4

4. HOW TO KNOW DRUM UNIT LIFE & PAGE COUNTER ...................................... A-5

5. HOW TO USE THE SELF-DIAGNOSTICS TOOLS ............................................. A-11

6. NVRAM DEFAULT VALUE................................................................................... A-15

7. PAPER CASSETTE INFORMATION (FOR EUROPE ONLY)............................... A-16

8. CONNECTION DIAGRAM, HL-1030/1240............................................................ A-17

9. CONNECTION DIAGRAM, HL-1250..................................................................... A-18

10. CONNECTION DIAGRAM, HL-1270N.................................................................. A-19

11. MAIN PCB CIRCUIT DIAGRAM, HL-1030/1240 (1/2)........................................... A-20

12. MAIN PCB CIRCUIT DIAGRAM, HL-1030/1240 (2/2)........................................... A-21

13. MAIN PCB CIRCUIT DIAGRAM, HL-1250/1270N (1/5) ........................................ A-22

14. MAIN PCB CIRCUIT DIAGRAM, HL-1250/1270N (2/5) ........................................ A-23

15. MAIN PCB CIRCUIT DIAGRAM, HL-1250/1270N (3/5) ........................................ A-24

16. MAIN PCB CIRCUIT DIAGRAM, HL-1250/1270N (4/5) ........................................ A-25

17. MAIN PCB CIRCUIT DIAGRAM, HL-1250/1270N (5/5) ........................................ A-26

18A. ENGINE PCB CIRCUIT DIAGRAM (OLD).......................................................... A-27

18B. ENGINE PCB CIRCUIT DIAGRAM (NEW)......................................................... A-28

19. NETWORK BOARD CIRCUIT DIAGRAM............................................................. A-29

20. LOW-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (110 - 120V) ........ A-30

21. LOW-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (220 - 240V) ........ A-31

22A. HIGH-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (OLD) ............... A-32

22B. HIGH-VOLTAGE POWER SUPPLY PCB CIRCUIT DIAGRAM (NEW)............... A-33

23. DIFFERENCES BETWEEN OLD & NEW VERSIONS OF HVPS & ENGINE PCB A-34

INDEX

vi

REGULATION

REGULATION

LASER SAFETY (110 - 120V MODEL ONLY)

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

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

FDA REGULATIONS (110 - 120V MODEL ONLY)

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

The label for Japanese manufactured products

MANUFACTURED: K
BROTHER INDUSTRIES, LTD.

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

The label for Chinese manufactured products

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

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

Caution

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

vii

REGULATION

IEC 825 (220-240V MODEL ONLY)

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

CLASS 1 LASER PRODUCT
APPAREIL LASER DE CLASSE 1
LASER KLASSE 1 PRODUKT

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

Caution

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

For Finland and Sweden
LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT

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

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

1.

viii

SAFETY INFORMATION

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.

INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCK DEFEATED.

CAUTION
ADVARSEL
VARNING
VARO!

ADVARSEL
ATTENTION
VORSICHT

ATENCIÓN

AVOID DIRECT EXPOSURE TO BEAM. CLASS 3B LASER PRODUCT.
USYNLIG LASER STRÅLING NÅR KABINETLÅGET STÅR ÅBENT.

UNGDÅ DIREKTE UDSÆTTELSE FOR STRÅLING. KLASSE 3B LASER.
OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRRAR

ÄR URKOPPLADE. STRÅLEN ÄR FARLIG. KLASS 3B LASER APPARAT.
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA

NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN. LUOKAN
3B LASERLAITE.

USYNLIG LASERSTRÅLING.UNNGÅ DIREKTE KONTAKT MED LASERENHETEN
NÅR TOPPDEKSELET ER ÅPENT. KLASSE 3B LASERPRODUKT.

RADIATIONS LASER INVISIBLES QUANDOUVERT ET VERROUILLAGE ENLEVE.
EVITER EXPOSITIONS DIRECTES AU FAISCEAU. PRODUIT LASER CLASSE 3B.

UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG
GEÖFFENT UND SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.
SICHERHEITSKLASSE 3B.

RADIACIÓN LASER INVISIBLE CUANDO SE ABRE
LA TAPA Y EL INTERRUPTOR INTERNO ESTÁ
ATASCADO. EVITE LA EXPOSICIÓN DIRECTA
DE LOS OJOS. PRODUCTO LASER CLASE 3B.

ix

SAFETY INFORMATION

DEFINITIONS OF WARNINGS, CAUTIONS AND NOTES

The following conventions are used in this service manual:

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

!

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

CAUTION:

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 rear cover to access any parts inside the printer,
never touch the red colored 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.

x

CHAPTER 1 GENERAL

1. FEATURES

This printer has the following features;

High Resolution and Fast Print Speed

<HL-1030>
True 600 x 600 dots per inch (dpi) (GDI mode) with microfine toner and up to 10 pages per
minute (ppm) print speed (A4 or Letter paper).

<HL-1240>
True 600 x 600 dots per inch (dpi) (GDI mode) and true 300 x 300 dots per inch (dpi) (PCL
mode) with microfine toner and up to 12 pages per minute (ppm) print speed (A4 or Letter
paper).

<HL-1250/1270N>
True 600 x 600 dots per inch (dpi) and 1200 x 600 dots per inch (dpi) for graphics with
microfine toner and up to 12 pages per minutes (ppm) print speed (A4 or Letter paper).

CHAPTER 1 GENERAL

Versatile Paper Handling

The printer loads paper automatically from the paper cassette. The paper cassette can hold
A4, letter, B5, Executive A5 and A6 sizes 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.

Front Operation

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

Enhanced Printing Performance and User-Friendly Operation for Windows



The dedicated printer driver for Microsoft Windows 95/98, Windows 3.1 and Windows NT

4.0 are available on the CD-ROM supplied with your printer. You can easily install them into
your Windows
compression mode to enhance printing speed in Windows



system using our installer program. The driver supports our unique



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

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 95/98 only) you can get visual guidance on your
PC screen on the actions in the event of certain printer errors.

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.

1-1

CHAPTER 1 GENERAL

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 page 600
dpi graphic and text data, including large fonts, with the standard printer memory.

USB Interface (for Windows



98, iMac and Power Macintosh G3 using USB with HL-

1240/1250/1270N only)

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
CD-ROM supplied with the printer.

Remote Printer Console Program for DOS (for HL-1240/1250/1270N only)

The utility program, Remote Printer Console (RPC), is available on the CD-ROM supplied with
your printer. When you operate your computer in a DOS (Disk Operating System)
environment, this program allows you to easily change the default settings of the printer such
as fonts, page setup and emulations.

This program also provides a status monitor program, which is a Terminate-and-Stay Resident
(TSR) program. It can monitor the printer status while running in the background and report
the current status or errors on your computer screen.

Popular Printer Emulation Support (for HL-1240/1250/1270N only)

These printers support the following printer emulation modes;
The HL-1240 supports HP LaserJet IIP.
The HL-1250 supports HP LaserJet 6P (PCL6), Epson FX-850 and IBM Proprinter XL.
The HL-1270N supports HP LaserJet 6P (PCL6), PostScript Level 2 language emulation
(Brother BR-Script Level 2), Epson FX-850 and IBM Proprinter XL.

When you use DOS application software or Windows version 3.0 or earlier, you can use any
of these emulations to operate the HL-1250/1270N printers. The printers also support auto­emulation switching between HP, Brother BR-Script 2 and Epson or HP, BR-Script 2 and IBM.
If you want to set the printer emulation, you can do it using the Remote Printer Console
Program.

High Resolution Control & Advanced Photoscale Technology (for HL-1250/1270N only)

High Resolution Control (HRC) technology provides clear and crisp printouts. Use this function
to get smooth text print quality.

Advanced Photoscale Technology (APT) enables the printer to print graphics in 256
grayscales, producing nearly photographic quality. Use this function when you want to print
photographic images.

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 from two economy modes, 25% toner saving and 50% toner
saving, 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-1030/1240), 6W (HL-1250) or
12W (HL-1270N) 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 around 3,000 pages for the standard cartridge and around 6,000 pages for the
optional high-capacity cartridge, which is both cost both effective and ecologically friendly.

1-2

CHAPTER 1 GENERAL

Bar Code Print (for HL-1250/1270N only)

The printer can print the following 11 types of bar codes;

Code 39

•

Code 128

•

Interleaved 2 of 5

•

Codabar

•

US-PostNet

•

ISBN

•

UPC-A

•

UPC-E

•

EAN-8

•

EAN-13

•

EAN-128

•

Network Feature (for HL-1270N only)

The Brother printer has built in multi protocol network capability as standard. This allows
multiple host computers to share the printer on a 10/100Mbit Ethernet network. Any users can
print their jobs as if the printer was directly connected to their computer. Users on Windows®
95/98, Windows NT

®

, UNIX, Novell, Apple Macintosh, LAN server and OS/2 Warp server
computer simultaneously can access this printer. For further information, see the Network
User’s Guide supplied with the printer.

1-3

CHAPTER 1 GENERAL

(

y)

2. OVERVIEW

<Front View>

Manual feed paper guides

Output tray

Tray extension flap

Control panel

Front cover

Manual feed slot

Paper indicator

Paper cassette

Fig. 1-1

<Rear View>

HL-1030/1240

Rear cover

USB interface connector

for HL-1240 onl

Parallel interface connector

HL-1250/1270N

Network interface
(for HL-1270N only)

Power switch

AC power inlet

Fig. 1-2

Modular jack for
Lower Tray Unit

Rear cover

USB interface

connector

Parallel interface

connector

AC power inlet

Power switch

Fig. 1-3

1-4

Network board

(for HL-1270N only)

10/100BASE TX

Network port

L F A TEST

LED

Test button

3. SPECIFICATIONS

3.1 Printing

Print method Electrophotography by semiconductor laser beam scanning
Laser Wave length: 780 nm

Resolution HL-1030: 600 x 600 dots/inch (GDI)

Output: 5mW max

HL-1240: 600 x 600 dots/inch (GDI)

300 x 300 dots/inch (under DOS or other operating
system)

HL-1250: 1200(H) x 600(V) dots/inch (for Windows

graphics)
600 x 600 dots/inch (for Windows



and DOS)
300 x 300 dots/inch (under Apple Macintosh using the
optional RS-100M)

HL-1270N: 1200(H) x 600(V) dots/inch (for Windows

graphics)
600 x 600 dots/inch (for Windows



and DOS)

CHAPTER 1 GENERAL



DIB



DIB

Print quality Normal printing mode

Economy printing mode (up to 25% and 50% toner saving)

Print speed HL-1030: Up to 10 pages/minute

HL-1240/1250/1270N: Up to 12 pages/minute*

(when loading A4 or Letter-size paper from the paper cassette.)
Warm-up Max. 45 seconds at 23°C (73.4°F)
First print 15 seconds

(when loading A4 or Letter-size paper from the paper cassette.)
Print media Toner cartridge

Life expectancy: 3,000 pages/cartridge (Standard cartridge)

6,000 pages/cartridge (High-capacity cartridge)

(when printing A4 or Letter-size paper at 5% print coverage)
Developer Drum unit

Life expectancy: 20,000 pages/drum unit

*NOTE:
Print speed varies depending on the paper size or media type. For details, refer to APPENDIX

3 ‘PRINT SPEEDS WITH VARIOUS SETTINGS’.

1-5

CHAPTER 1 GENERAL

3.2 Functions

CPU HL-1030/1240: MB86833 66MHz
HL-1250/1270N: MB86832 66MHz

Emulation HL-1030: Brother Printing Solution for Windows
HL-1240: Brother Printing Solution for Windows
HP LaserJet IIP (PCL level 4)
HL-1250: Brother Printing Solution for Windows
Automatic emulation selection among HP LaserJet 6P

HL-1270N: Brother Printing Solution for Windows

Automatic emulation selection among HP LaserJet 6P

PR2002059







(PCL level 6), EPSON FX-850 or IBM Proprinter XL



(PCL level 6), Brother BR-Script Level 2, EPSON FX­850 or IBM Proprinter XL

Printer driver <PCL Driver>

• Windows
supporting Brother Native Compression mode

• Windows



3.1/3.11, Windows 95/98, Windows NT 4.0 driver,



3.1/3.11, Windows 95/98 driver, supporting bi-

directional capacity

<PS Driver>
PPD file driver for Windows



95/98 and Windows NT 4.0 driver (for

HL-1270N only)

<Others>

iMac, Power Macintosh G3 with USB printer driver (for HL-

•

1240/1250/1270N only)

Optional Macintosh driver available for System 6.0.7 or higher (for

•

HL-1250 only)

Interface • Bi-directional parallel

• Universal Serial Bus (USB) (for HL-1240/1250/1270N only)

• Optional RS-422A/RS-232C serial (RS-100M) available (for HL-

1250 only)

• 10/100 BaseTX Ethernet network interface (for HL-1270N only)

Memory HL-1030/1240: 2.0 Mbytes
No memory expansion is possible on these models
HL-1250/1270N: 4.0 Mbytes
Expandable up to 36 Mbytes by installing an

industry standard SIMM*

Control panel 1 button and 4 LEDs

Diagnostics Self-diagnostic program

*NOTE:

The SIMM must have the following specifications;
Type: 72 pin (Both EDO RAM and Fast page mode DRAM can be used.)
Access time: 60 nsec - 80 nsec
Capacity: 1, 2, 4, 8, 16, 32 Mbyte
(Although the 64 Mbyte SIMM can be installed, only 32 Mbyte is effective.)
Height: 25.4 mm (1.00 inches) or less
Output: 32 bit or 36 bit (independent of parity)

1-6

3.3 Electrical and Mechanical

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 (peak)*: 940 W or less

Printing (average): 340 W or less
Standing by: 80 W or less
Sleep*: 5 W or less (HL-1030/1240)

Noise Printing: 49 dB A or less

Standing by: 27 dB A or less

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)

Humidity Operating: 20 to 80% (non condensing)

Storage: 10 to 85% (non condensing)

CHAPTER 1 GENERAL

6 W or less (HL-1250)
12W or less (HL-1270N)

Dimensions A4 paper cassette installed: 360 x 370 x 235 mm
(W x D x H) (14.2 x 14.6 x 9.3 inches)

Legal paper cassette installed: 360 x 430 x 235 mm

(14.2 x 16.9 x 9.3 inches)

A4 lower paper cassette installed: 360 x 370 x 345 mm
(HL-1250/1270N only) (14.2 x 14.6 x 13.6 inches)
Legal lower paper cassette installed: 360 x 430 x 345 mm
(HL-1250/1270N only) (14.2 x 16.9 x 13.6 inches)

Weight Approx. 9.2 kg (20.2 lb.) including the drum unit.

Approx. 12.7 kg (27.9 lb.) including the drum unit and Lower Tray unit.

*NOTE:

The peak figure of power consumption is worked out when the halogen heater lamp is

•

turned ON.
The peak figure of power consumption is worked out excluding inrush current value.

•

The peak figure of power consumption is a reference value and should be used internally at

•

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

•

1-7

CHAPTER 1 GENERAL

3.4 Network (for HL-1270N only)

Type / Speed 10/100 Base TX Ethernet

Auto speed detection

Protocols

•

TCP/IP
DHCP, BOOTP, RARP, DHCP, NetBIOS over IP
LPR/LPD, Port9100, Custom Port, POP3/SMTP SMB Print
TELNET, SNMP, HTTP, TFTP

Novell IPX.SPX (Bindery/NDS)

•

AppleTalk

•

Management

Web Based Management

•

BRAdmin32 Windows

•

TELNET and Netware Command Console

•

SNMP/MIB II

•

HP JetAdmin / Web JetAdmin compatible

•



based management utility

Firmware update 2MB flash ROM. Use BRAdmin32 when upgrading print server

software or BOOTP, TFTP PUT/GET or IPX for Netware.

Supplied software

BRAdmin32 management utility (for Windows

•

Port driver for Windows

•

LPR port driver (for Windows



95/98/NT 4.0



95/98 only)



95/98/NT 4.0)

NetBIOS port driver
SMTP port driver

3.5 Paper

3.5.1 Feedable paper

(1) Type & size

Feeding source Paper type Paper size

Paper cassette Normal paper

Manual feed slot Normal paper A4, Letter, B5 (JIS/ISO), A5, A6, Executive, Legal

Optional lower
paper cassette

(HL-1250/1270N only)

*NOTE:
Legal-size paper can be printed with the standard paper cassette or the optional lower cassette

for the US and Canada models only.

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

Transparencies

70-216 x 116-356 mm

(2.75-8.5 x 4.57-14 inches)
Envelopes DL, C5, COM10, Monarch, B5 (ISO)
Organizers J, K, L sizes of DAY-TIMER
Labels A4, Letter
Transparencies A4, Letter
Other sizes 70-216 x 116-356 mm (2.75-8.5 x 4.57-14 inches)
Normal paper

A4, Letter, B5 (ISO), A5, Executive, Legal*
Transparencies

1-8

CHAPTER 1 GENERAL

(2) Other paper specifications
<Paper Cassette>

Cut sheet
Basis weight 64 to 105 g/m2 (17 to 28 lb.)
Caliper 0.08 to 0.13 mm (0.003 to 0.005 in.)
Moisture content 4% to 6% by weight

<Manual Feed Slot>

Cut sheet Envelope

Basis weight 64 to 158 g/m2 (17 to 43 lb.) 75 to 90 g/m2 (20 to 24 lb.)

single thickness

Caliper 0.08 to 0.2 mm (0.003 to 0.008 in.) 0.084 to 0.14 mm (0.003 to 0.005 in.)

single thickness

Moisture content 4% to 6% by weight 4% to 6% by weight

(3) Recommended paper

Letter: Xerox 4200 (75 g/m

•

A4: Xerox 80 Premier Paper (80 g/m

•

Label: Avery laser label or equivalent

•

Transparency: 3M CG3300 or equivalent

•

2

)

2

)

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 cassette to

•

avoid any paper jams or misfeeds.

1-9

CHAPTER 1 GENERAL

3.5.2 Paper cassette capacity

(1) Maximum load height
Paper cassette:

<Normal paper> Up to 27mm (1.06 inches) in height

<Transparencies> 10 sheets

(2) Paper feed conditions

(250 sheets of 80 g/m

2

A4/Letter paper)

Type Weight Cassette

Normal paper (cut sheet)

Special paper (cut sheet)

3.5.3 Print delivery

(1) Output tray stacking
capacity: Maximum 150 sheets (80 g/m

(2) Straight paper path output at the rear of the printer
capacity: 1 sheet **Thicker paper printing is recommended.

NOTE:

When using the straight paper path feed and the rear output method for thicker paper

•

printing, lift up the rear cover at the rear of the printer.
Face-down: Delivery with the printed face of the paper downwards.

•

Face-up: Delivery with the printed face of the paper upwards.

64 to 80 g/m

158 g/m

2

Labels
Envelopes
Organizers

face-down only

face-up only

Manual feed

(1 sheet)

2

2

)



(250 sheet)

✕
✕
✕
✕











1-10

3.6 Printing Area

3.6.1 Effective printing area

The effective printing area means the area within which the printing of all the data received
without any omissions can be guaranteed.

CHAPTER 1 GENERAL

(1) Supported by the engine

4.23mm

4.23mm

3.6.2 Print guaranteed area

208mm

(2) Supported by the emulation

25 25

2,400 (80 characters)

NOTE:

The units in the above figure are dot size

•

based on 300 dpi resolution.
25 dots at both sides is for italic characters.

•

F

E

B

D

F

A

CE

The values above vary depending on the paper size. For details, see the table on the next
page.

1-11

CHAPTER 1 GENERAL

The table below shows the print guaranteed areas for each paper size.

Size A B C D E F

A 4

Letter

Legal

B 5 (ISO)

Executive

A 5

A 6

Organizer
(J size)

Organizer
(K size)

Organizer
(L size)

COM10

MONARCH

C 5

DL

210.0 mm

8.27”
(2,480 dots)

215.9 mm

8.5”
(2,550 dots)

215.9 mm

8.5”
(2,550 dots)

176.0 mm

6.93”
(2,078 dots)

184.15 mm

7.25”
(2,175 dots)

148.5 mm

5.85”
(1,754 dots)

105.0 mm

4.13”
(1,240 dots)

69.85 mm

2.75”
(825 dots)

95.25 mm

3.75”
(1,125 dots)

139.7 mm

5.5”
(1,650 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)

297.0 mm

11.69”
(3,507 dots)

279.4 mm

11.0”
(3,300 dots)

355.6 mm

14.0”
(4,200 dots)

250.0 mm

9.84”
(2,952 dots)

266.7 mm

10.5”
(3,150 dots)

210.0 mm

8.27”
(2,480 dots)

148.5 mm

5.85”
(1,754 dots)

116.0 mm

4.57”
(1,370 dots)

171.45 mm

6.75”
(2,025 dots)

215.9 mm

8.5”
(2,550 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)

203.2 mm

8.0”
(2,400 dots)

203.2 mm

8.0”
(2,400 dots)

203.2 mm

8.0”
(2,400 dots)

164.0 mm

6.46”
(1,936 dots)

175.7 mm

6.92”
(2,025 dots)

136.5 mm

5.37”
(1,612 dots)

93.0 mm

3.66”
(1,098 dots)

56.2 mm

2.21”
(675 dots)

86.78 mm

3.42”
(975 dots)

131.23 mm

5.17”
(1,500 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)

288.5 mm

11.36”
(3,407 dots)

270.9 mm

10.67”
(3,200 dots)

347.1 mm

13.67”
(4,100 dots)

241.5 mm

9.5”
(2,852 dots)

258.2 mm

10.17”
(3,050 dots)

201.5 mm

7.93”
(2,380 dots)

140.0 mm

5.51”
(1,654 dots)

107.5 mm

4.23”
(1,270 dots)

162.98 mm

6.42”
(1,925 dots)

207.43 mm

8.17”
(2,450 dots)

232.8 mm

9.16”
(2,750 dots)

182.0 mm

7.16”
(2,150 dots)

220.5 mm

8.68”
(2,604 dots)

211.5 mm

8.33”
(2,498 dots)

3.4 mm

0.13”
(40 dots)

6.35 mm

0.25”
(75 dots)

4.23 mm

0.17”
(50 dots)







6.35 mm

0.25”
(75 dots)

6.01 mm

0.24”
(71 dots)







6.35 mm

0.25”
(75 dots)











6.01 mm

0.24”
(71 dots)





NOTE:

The paper sizes indicated here should conform to the nominal dimensions specified by JIS.

•

A4 paper must accommodate 80 characters printed in pica pitch (203.2 mm).

•

The dot size is based on 300 dpi resolution.

•

Organizer is not supported by any printer emulations (commands).

•

1-12

CHAPTER 2 INSTALLATION AND BASIC OPERATION

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 no 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

• The printer should be installed near a power outlet, which is easily accessible.

• 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 ventilation 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.

1.3 System Requirements for Brother Printer Solution for Windows

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

• IBM PC or compatible with 80486 SX or higher microprocessor

• 10MB of space available on your hard disk for the printer driver and all fonts.

• Microsoft Windows





:

3.1/3.11, Windows 95/98 or Windows NT 4.0

2-1



CHAPTER 2 INSTALLATION AND BASIC OPERATION

2. UNPACKING

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

Paper cassette

Printer

Drum unit
(with Toner cartridge included)

CD-ROM

Floppy disk

Fig. 2-1

NOTE:
Components may vary depending on the country.

Documents

AC cord

2-2

3. INSTALL THE PRINTER

You need to implement hardware setup and driver installation to use the printer.
Firstly, identify the Operating System on your computer. Then, purchase the appropriate

interface cable (parallel or USB) for your computer.
The installation programs for the hardware setup and driver installation are contained on the

supplied CD-ROM.

CHAPTER 2 INSTALLATION AND BASIC OPERATION

If you do not have a CD-ROM drive, you can install the printer driver from the supplied floppy
disk. (See Subsection 3.2 ‘For Windows

3.1 For Windows® Users

(1) Turn on your PC power. Close all the applications running on your PC.
(2) Insert the supplied CD-ROM into the CD-ROM drive.
(3) The opening screen will appear automatically in Windows

NOTE:

If the opening screen does not appear;

•

Click
(If your CD-ROM drive is not D, type the correct drive letter instead of “D”.)

In Windows 3.1;
Click the File menu in the Program Manager screen and select

in the command line box and click OK. (If your CD-ROM drive is not D, type the correct
drive letter instead of “D”.)

The setup screens shown below are based on the HL-1240 model. They vary depending

•

on the model.

(4) Select the model of your printer.

Start

and select

. Then, type

Run

®

Users with No CD-ROM Drive’.)



95/98/NT4.0.

D:\START

in the command line box and click OK.

Run

. Then, type

D:\START

(5) Select the language you want, then follow

the instructions on the screen.

2-3

Fig. 2-2

Fig. 2-3

CHAPTER 2 INSTALLATION AND BASIC OPERATION

(6) Click the

Initial Setup

button.

(7) You can view the Initial Setup operations

in the video movie.

Fig. 2-4

(8) Click the interface cable you are going to

use, Parallel or USB.

(9) If you click the

button, you can

NOW

install the printer driver immediately.

(10) After the printer driver has been installed,

the HL-1030, HL-1240, HL-1250 or HL­1270N window will appear. Follow the on­screen messages to complete the
installation.

Fig. 2-5

Fig. 2-6

Fig. 2-7

If your printer is connected using a parallel interface cable, the setup is now completed. If you
want to connect your printer using a USB interface cable, refer to Subsection 3.3 ‘Using the

USB Interface (For Windows



98 only)’.

2-4

3.2 For Windows® Users with No CD-ROM Drive

If you do not have a CD-ROM drive, setup the printer following the steps below, then install the
printer driver from the floppy disk.

3.2.1 Install the drum unit

(1) Open the front cover.
(2) Unpack the drum unit assembly and rock

it from side to side 5 or 6 times to
distribute the toner evenly inside the
cartridge. (Fig. 2-8)

(3) Install the drum unit into the printer until it snaps into place and close the front cover.

3.2.2 Load paper

(1) Pull the paper cassette completely out of the printer.
(2) Slide the paper guides to the paper size

you want until they snap into a slot. (Fig.
2-9)

CHAPTER 2 INSTALLATION AND BASIC OPERATION

Fig. 2-8

(3) Load paper into the paper cassette.

Check that paper is flat placed. (Fig. 2-

10) Paper should be loaded up to the
lines on the sliding guide.

(4) Re-install the paper cassette into the

printer.

3.2.3 Print a test page

(1) Check that the power switch is off.
(2) Connect the AC power cord to the printer.
(3) Plug the AC power cord into an AC outlet,

then turn on the power switch. (Fig. 2-11)

Fig. 2-9

Fig. 2-10

2-5

AC power cord

Fig. 2-11

CHAPTER 2 INSTALLATION AND BASIC OPERATION

(4) Extend the tray extension flap. After the

printer has warmed up the Ready LED
changes from blinking to lit. (Fig. 2-12)

(5) Press the control panel button. The

printer will print a test page. Check the
test page printed correctly.

3.2.4 Connect the printer and the computer

(1) Turn off the power switch.
(2) Connect the parallel interface to the

computer, then connect it to the printer.
(Fig. 2-13)

(3) Use the clips on the printer connector to

secure the parallel interface cable.

(4) Turn on the printer power switch.

Fig. 2-12

Parallel interface

cable

3.2.5 Install the printer driver from floppy disk

(1) Turn on the computer power. If the “Add New Hardware Wizard” window appears, click

the

Cancel

button.
(2) Insert the supplied floppy disk into the floppy disk drive.
(3) Install the printer driver using the Setup.exe file.

In Windows
i) Click the



95/98

button and select

Start

Run

.

ii) Type A:\SETUP and click OK. (If your floppy disk drive is not A, insert the correct drive

letter instead of ‘A’.)

iii) Follow the instructions that appear on the screen.

In Windows



3.1

i) Click File menu in the Program Manager screen and select
ii) Type A:\SETUP click OK. (If your floppy disk drive is not A, insert the correct drive letter

instead of ‘A’.)

iii) Follow the instructions that appear on the screen.

Run

Fig. 2-13

.

2-6

CHAPTER 2 INSTALLATION AND BASIC OPERATION

3.3 Using the USB Interface (for Windows

For the HL-1240/1250/1270N printers, the USB interface cable can be connected between the
printer and PC. Prepare the printer to use the USB interface following the steps below;

3.3.1 Connect the USB interface cable

(1) Check that the printer power switch is on.
(2) Connect the USB interface cable to the

computer, then connect it to the printer.
(Fig. 2-14)

3.3.2 Install the USB driver



98 only)

USB interface

cable

Fig. 2-14

(1) The “Add New Hardware Wizard” window

will appear. Click the

Next

button.

(2) Select “Search for the best driver for your

device.” Click the

Next

button.

Fig. 2-15

2-7

Fig. 2-16

CHAPTER 2 INSTALLATION AND BASIC OPERATION

(3) Insert the supplied CD-ROM into the CD-

ROM drive and select “CD-ROM drive”.
Click the

Next

button.

Fig. 2-17

(4) Click the

will be installed.

(5) Click the

button, then the USB driver

Next

button.

Finish

Fig. 2-18

(6) Click the

start.

button, then your PC will re-

Yes

Fig. 2-19

Fig. 2-20

2-8

3.3.3 Set the PC printer port

Your PC printer port has to be set to “USB port”.

CHAPTER 2 INSTALLATION AND BASIC OPERATION

(1) Click the

button and select Printers in Settings.

Start

(2) Select your printer model icon in Printers so that the printer icon is highlighted.
(3) Select Properties from the File menu, then click the Details tab.
(4) Select

BRUSB: (USB Printer Port)

in the

“Print to the following port” box. (Fig. 2-

21)

(5) Click the OK button to close the

Properties dialog box. The setup is now
completed.

Fig. 2-21

NOTE:
Both the parallel cable and USB interface cable can be connected to the printer at the same

time.

3.4 For Macintosh (iMac and Power Macintosh) with USB Users Only

When you use the HL-1240/1250/1270N printer with Macintosh using USB, setup the printer
following the Initial Setup instructions on the supplied CD-ROM.

(1) Turn on the computer power, then insert the CD-ROM into the CD-ROM drive. The

window shown below will appear automatically.

Fig. 2-22

(2) Click the “Instructional Video” icon in the window above to view the Initial Setup operations

in the video movie.

(3) Click the “Printer Driver Installer” icon in the window above to install the printer driver.

2-9

CHAPTER 2 INSTALLATION AND BASIC OPERATION

4. PAPER HANDLING

The printer provides two types of paper loading method; paper cassette and manual feed slot.

4.1 Load Paper into the Paper Cassette

You can load normal paper and transparencies into the paper cassette. If you load paper into
the paper cassette, the printer automatically feeds paper sheet by sheet and ejects the printed
page into the output tray.

For the details on cassette loading, refer to Subsection 3.2.2 ‘Load Paper’ in this chapter and

Subsection 3.5 ‘Paper’ in CHAPTER 1.

4.2 Load Paper Manually

You can feed envelopes, labels and organizers as well as normal paper and transparencies
into the manual feed slot. (For details on feedable paper, see Subsection 3.5 ‘Paper’ in

CHAPTER 1.)

When using the manual feed slot, follow the steps below;
(1) Select the manual feed mode in the printer driver, and send the print data to the printer.

NOTE:
A ‘NO PAPER’ message is shown in the status monitor until a sheet of paper is inserted into

the manual feed slot.

(2) Set the width of the manual feed slot paper

guides using both hands to the paper width to be
used. (Fig. 2-23)

Fig. 2-23

(3) Insert the paper into the manual feed slot with

both hands until the front edge of the paper
touches the paper feed roller.

(4) Hold the paper in this position until the printer

feeds the paper a short distance, then let go of
the paper. (Fig. 2-24)

Fig. 2-24

(5) After the printer ejects the printed page, insert the next sheet of paper as in the previous

step. The printer will wait until you insert the next sheet of paper. Repeat this as necessary
for the number of pages you need to print.

NOTE:
It is recommended to remove printed pages immediately after printing if the output tray

extension flap is not extended.

2-10

CHAPTER 2 INSTALLATION AND BASIC OPERATION

The printer has a
the rear cover is lifted up. Use this paper feed and output method when printing on thicker
paper or card.

(1) Select the manual feed mode in the printer

driver.

(2) Lift up the rear cover at the rear of the printer.

(Fig. 2-25)
(3) Send the print data to the printer.
(4) Follow Steps (3) to (4) in the previous page to

load paper.
(5) Close the rear cover of the printer.

CAUTION:

!

Remove each sheet immediately after printing. Stacking the sheets may cause curl or media
feed jams.

straight paper path

from the manual feed slot to the rear of the printer when

4.3 Two Side Printing (Manual Duplexing)

The supplied printer driver allows you to do manual duplex printing.
When using the manual duplex function, note the following information;

Fig. 2-25

CAUTION:

!

If the paper is too thin, it may cause wrinkling.

•

If paper is curled, straighten it and then set it into the paper cassette.

•

The paper type should be regular paper. Do not use bond paper.

•

When setting paper into the paper cassette, empty the cassette first, then insert the printed

•

paper only, printed side face up. (Do not add the printed paper onto the top of the unprinted
paper stack.)
If the paper is not feeding correctly, the paper might be curled. Remove the paper and

•

straighten it.

4.3.1 To print on both sides of the paper from the paper cassette

(1) Select the required manual duplex printing mode from the driver.
(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.
(4) Re-insert them into the paper cassette, loading

the paper with the side to be printed (blank side)
face down, and the top edge toward you. Follow
the instructions on the computer screen. (Fig. 2-

26)

(5) The printer will now automatically print all the

odd pages on the reverse side of the paper.

2-11

Fig. 2-26

CHAPTER 2 INSTALLATION AND BASIC OPERATION

4.3.2 To print on both sides of the paper from the manual feed slot

CAUTION:

!

Before re-inserting the sheets, straighten them, or paper feed errors will occur.

•

The use of very thin or very thick paper is not recommended.

•

When the manual duplex function is used, it is possible that paper jams may occur or print

•

quality may not be satisfactory.

(1) Select the required manual duplex printing mode and manual feed mode from the driver.
(2) Using both hands, insert the paper into the manual feed slot with the side to be printed

first facing upwards. Follow the instructions on the computer screen.
(3) Repeat action (2) until you have printed all the even numbered pages.
(4) Remove the printed even numbered pages from the output tray
(5) Re-insert them in order into the manual feed slot,

loading the paper with the side to be printed
(blank side) face up, and the top edge towards
the printer. Follow the instructions on the
computer screen. (Fig. 2-27)

(6) Repeat action (5) until you have printed all the

odd numbered pages on the reverse side of the
paper.

Fig. 2-27

2-12

5. CONTROL PANEL OPERATION

There are four LEDs and a button on the control panel. The LEDs indicate the printer status,
and pressing the button enables several functions in the printer.

LEDs

CHAPTER 2 INSTALLATION AND BASIC OPERATION

Drum

Ready

Paper

Alarm

Toner

Data

Control Panel Button

5.1 Ready (Paper) LED Indications

The Ready LED indicates the current status of the printer.

LED Printer status

OFF The power switch is off, or the printer is in sleep mode.

If the printer is in sleep mode, it will wake up automatically when it
receives data or when you press the control panel button.

Blinking <Blinking at 1 second intervals>

The printer is warming up.
<Blinking at 2 seconds intervals>

The printer is cooling down and stops printing until the internal
temperature of the printer lowers.

ON The printer is ready to print.

This LED also works as the Paper LED with the Alarm LED. They blink simultaneously to
indicate a paper error. See Subsection 2.1 ‘Operator Calls’ in CHAPTER 6 for details.

Error Action

Fig. 2-28

Paper jam Clear the paper jam and press the panel button if the printer

does not automatically resume printing.
No paper Load paper in the printer and press the panel button.
Misfeed Re-install the paper and press the panel button.

2-13

CHAPTER 2 INSTALLATION AND BASIC OPERATION

5.2 Data (Toner) LED Indications

The Data LED indicates the current status of the print data process.

LED Printer status

OFF The printer has no print data.
Blinking The printer is receiving data from the computer or the printer is

processing data in memory.

ON Print data remains in the printer memory. If the Data LED is on for a

long period of time and nothing has printed, you need to press the
button to print the remaining data.

This LED also works as the Toner LED with the Alarm LED. They blink simultaneously to
indicate a toner error. See also Subsection 2.1 ‘Operator Calls’ in CHAPTER 6 for details.

Error Action

Toner low Indicates that the toner cartridge is nearly empty. Purchase a

new toner cartridge ready for when the ‘Toner empty’ error is

indicated.
Toner empty Replace the toner cartridge with a new one.

5.3 Drum LED Indications

The Drum LED indicates the drum unit is nearly at the end of its life.

LED Printer status

OFF The drum unit can be used.
ON The drum unit is nearly at the end of its life. It is recommended to

obtain a new drum unit to replace the current one.

5.4 Alarm LED Indications

The Alarm LED blinks (with no other LEDs) to indicate a printer error status such as “cover
open” or “memory full”.

If any other error occurs, the printer indicates the error by blinking the Alarm LED with another
LED or by printing an error report. Refer to Subsection 2.2 ‘Service Calls’ in CHAPTER 6.

2-14

5.5 Control Panel Button Operations

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

Operation Description

Cancel printing If the button is pressed during printing, the printer immediately stops

printing and ejects the paper.

Wake-up If the printer is in sleep mode, pressing the button wakes it up into the

ready status. It will take up to 45 seconds for the printer to go into the
ready status.

Form feed If the Data LED is on, press the button. The printer prints any data

remaining in the printer memory.

Error recovery If an error occurs, the printer will recover from some errors automatically.

If the error does not clear automatically, press the button to clear the error
and continue printer operation.

Reprint function You can reprint a print job without sending it from the computer again.

When you press the button with the Data LED off, the printer reprints the
last job you printed if the whole job can be kept in printer memory. If the
print job is too large or there is insufficient memory, the last page only will
be reprinted.

CHAPTER 2 INSTALLATION AND BASIC OPERATION

5.6 Other Control Features

The printer has the following useful features;

5.6.1 Sleep mode

When the printer does not receive data for a certain period of time (timeout), it enters sleep
mode. The default timeout is 5 minutes and it is automatically adjusted to the most suitable
time-out setting depending on the frequency of your printer use (Intelligent Sleep Mode).

While the printer is in sleep mode, all the LEDs are off and it is as if it was turned off, but the
printer can still receive data from the computer. Receiving a print file or document
automatically wakes up the printer to start printing. Pressing the button also wakes up the
printer.

NOTE:

When the printer goes into sleep mode, the fan will not stop until the printer engine has

•

cooled down. The fan running time varies depending on the sleep mode timeout because
the fan running conditions are defined as follows;

1) The fan runs for 10 minutes whenever printing finishes.

2) The fan runs while the printer is in ready status.

3) The fan runs for at least 5 minutes after the printer goes into sleep mode.
(EX: If the timeout is 5 minutes, the fan will be running for 5 minutes after the printer goes

into sleep mode.)
Sleep mode allows the print engine to cool, so the temperature of the room and how long

•

the printer has been in sleep mode affects the warm-up time. This warm-up time can take
up to 45 seconds. The Ready LED blinks to indicate that the printer is warming up.

You can change the timeout for the sleep mode with the supplied printer driver (all models)

•

or Remote Printer Console program. The time-out setting is in the range of 1 to 15 minutes.
Refer to the Help section in the printer driver or RPC program for more information about
the sleep mode setting.

2-15

CHAPTER 2 INSTALLATION AND BASIC OPERATION

5.6.2 Test print mode

The printer incorporates various test print modes. The printer enters into each test print mode
by panel button operation.

For details on test print mode, see Subsection 10.1 ‘Test Print Mode’ in CHAPTER 6.

2-16

CHAPTER 2 INSTALLATION AND BASIC OPERATION

6. NETWORK BOARD OPERATION (FOR HL-1270N ONLY)

The network board installed in the back of the printer allows you to share the printer on a
network.

6.1 Preparing the BR-net Board

6.1.1 Connect the Ethernet cable

(1) Turn off the printer power.
(2) Connect one end of the Ethernet

cable to the 10/100Base TX port of
the HL-1270N.

(3) Connect the other end of your

Ethernet cable to a free port on
your Ethernet hub.

(3) Turn on the printer power.

Hub

Fig. 2-29

6.1.2 Install the BRAdmin32: configuration utility (for Windows 95/98/NT 4.0 users only)

NOTE:
If you use another operating system, refer to the Network User’s Guide on the supplied CD-

ROM.

(1) Insert the supplied CD-ROM into your CD-ROM drive.
(2) Select the HL-1270N model button

and follow the screen instructions.

Fig. 2-30

(3) The BRAdmin32 utility will then be

installed onto your computer. When
the software is installed, re-boot
your computer.

(4) The Troubleshooting information

table on the right contains further
configuration details.

2-17

Fig. 2-31

CHAPTER 2 INSTALLATION AND BASIC OPERATION

6.1.3 Print configuration page

Press the Network Test button for less than 5 seconds

6.2 Functions

6.2.1 LED functions

TEST button

L-LED

(green)

F-LED

(orange)

to print a configuration page.

Fig. 2-32

A-LED

(green)

L-LED (green): Link activity

This LED is on if there is a valid connection to the network (either 10BaseT or 100BaseTX). It
is off if no network is detected.

F-LED (orange): Fast Ethernet

This LED will be on if the print server is connected to a 100BaseTX Fast Ethernet network. It
is off if the print server is connected to a 10BaseT network.

A-LED (green): Transmission activity

This LED will blink as the print server receives or transmits data.

6.2.2 Factory default setting

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), hold down the Network Test button for
more than 5 seconds

.

Fig. 2-33

2-18

CHAPTER 3 THEORY OF OPERATION

1. ELECTRONICS

1.1 General Block Diagram

HL-1030/1240

Fig. 3-1 shows a general block diagram of the HL-1030/1240 printer.

Control system

RAM 2MB

Video control block

(HL-1030: Parallel)

(HL1240: Parallel/USB)

CHAPTER 3 THEORY OF OPERATION

Interface block

External device

supply block

Low-voltage power

supply block

High-voltage power

Laser unit

Drum unit

Charging

block

Engine control block

Transfer block

Drum

Developing

block

Drive block
(DC motor)

Paper dust

cleaner block

Operation block

(Control panel)

Paper tray unit

Paper cassette

Manual feed

Fixing unit

Paper eject block

Paper feed system

Toner cartridge

Image generation system

Fig. 3-1

3-1

CHAPTER 3 THEORY OF OPERATION

HL-1250

Fig. 3-2 shows a general block diagram of the HL-1250 printer.

supply block

Low-voltage power

Optional RAM (SIMM)
(max. 32Mbytes)

Control system

RAM 4MB

Video control block

Laser unit

Expansion

memory I/O

Engine control block

Optional I/F board
(Mac. RS-232C)

Expansion I/O

Interface block

(Parallel / USB)

Operation block

(Control panel)

Drive block
(DC motor)

External deviceExternal device

Paper tray unit

Paper cassette

supply block

High-voltage power

Image generation system

Drum unit

Charging

block

Transfer block

Drum

Developing

block

Toner cartridge

Fig. 3-2

Paper dust

cleaner block

Manual feed

Fixing unit

Paper eject block

Paper feed system

3-2

HL-1270N

Fig. 3-3 shows a general block diagram of the HL-1270N printer.

Network board

CHAPTER 3 THEORY OF OPERATION

supply block

Low-voltage power

Optional RAM (SIMM)
(max. 32Mbytes)

Control system

RAM 4MB

Video control block

Laser unit

Expansion

memory I/O

Engine control block

Ethernet

10/100 Base TX

PCI bus

Interface block

(Parallel / USB)

Operation block

(Control panel)

Drive block
(DC motor)

External deviceExternal device

Paper tray unit

Paper cassette

supply block

High-voltage power

Image generation system

Drum unit

Charging

block

Transfer block

Drum

Developing

block

Toner cartridge

Fig. 3-3

Paper dust

cleaner block

Manual feed

Fixing unit

Paper eject block

Paper feed system

3-3

CHAPTER 3 THEORY OF OPERATION

1.2 Main PCB Block Diagram

HL-1030/1240

Fig. 3-4 shows the block diagram of the main PCB of the HL-1030/1240 printer.

A S I C

Reset Circuit

Program + Font ROM

1.0 Mbytes

RAM

(2.0 Mbytes)

CPU Core

(MB86833)

BUS

INT

Oscillator (32.7MHz)

Address Decoder

DRAM Control

Timer

FIFO

CDCC Parallel I/O

USB I/O (HL-1240 only)

To PC

To PC

EEPROM (128 8 bits)

Soft Support

EEPROM I/O

Engine Control I/O

To Engine PCB

Fig. 3-4

3-4

CHAPTER 3 THEORY OF OPERATION

HL-1250

Fig. 3-5 shows the block diagram of the main PCB of the HL-1250 printer.

A S I C

CPU Core

Reset Circuit

Program + Font ROM

4.0 Mbytes

RAM

(4.0 Mbytes)

(MB86832)

BUS

INT

Oscillator (32.7MHz)

Address Decoder

DRAM Control

Timer

Option RAM (SIMM)

(max. 32Mbytes)

Option Serial I/O

(RS232C & RS422A)

EEPROM (512 x 8 bits)

FIFO

CDCC Parallel I/O

USB I/O

Soft Support

EEPROM I/O

Engine Control I/O

To PC

To PC

To Engine PCB

Fig. 3-5

3-5

CHAPTER 3 THEORY OF OPERATION

HL-1270N

Fig. 3-6 shows the block diagram of the main PCB of the HL-1270N printer.

Reset Circuit

Program + Font ROM

4.0 Mbytes

Flash ROM

(2.0 Mbytes)

CPU Core

(MB86832)

BUS

A S I C

Oscillator (32.7MHz)

INT

Address Decoder

DRAM Control

Timer

RAM

(4.0 Mbytes)

Option RAM (SIMM)

(max. 32Mbytes)

EEPROM (4096 x 8 bits)

To Engine PCB

FIFO

CDCC Parallel I/O

USB I/O

Soft Support

EEPROM I/O

Engine Control I/O

To PC

To PC

To PC

or Hub

Network Board

PCI Bus Control

Fig. 3-6

3-6

1.3 Main PCB

For the entire circuit diagram of the main PCB, see Appendix 11 to 17.

1.3.1 ASIC
HL-1030/1240

A Fujitsu 32bit RISC CPU, MB86833 (SPARC lite) is built in the ASIC. While the CPU is driven
with a clock frequency of 33 MHz in the user logic block, it itself runs at 66 MHz, which is
generated by multiplying the source clock by two.

The functions of the interface block communication with external devices are described below;
(1) IEEE1284

Stores the data received from the PC into DRAM as controlled by the DMA controller. It is

applicable to both normal receiving and bi-directional communication (nibble mode, byte
mode, ECP mode).

(2) USB interface (for HL-1240 only)
Stores the data received from the PC into DRAM as controlled by the DMA controller. The

transmission speed is 12Mbps.

CHAPTER 3 THEORY OF OPERATION

(3) Engine GA transfer circuit
Communicates with the engine GA by a full-duplex synchronous serial method. The

communication speed is 2Mbps.

Fig. 3-7

3-7

CHAPTER 3 THEORY OF OPERATION

HL-1250/1270N

A Fujitsu 32bit RISC CPU, MB86832 (SPARC lite) is built in the ASIC. While the CPU is driven
with a clock frequency of 33 MHz in the user logic block, it itself runs at 66 MHz, which is
generated by multiplying the source clock by two.

The functions of the interface block communication with external devices are described below;
(1) IEEE1284

Stores the data received from the PC into DRAM as controlled by the DMA controller. It is

applicable to both normal receiving and bi-directional communication (nibble mode, byte
mode, ECP mode).

(2) USB interface
Stores the data received from the PC into DRAM as controlled by the DMA controller. The

transmission speed is 12Mbps.

(3) Engine GA transfer circuit
Communicates with the engine GA by a full-duplex synchronous serial method. The

communication speed is 2Mbps.

(4) PCI interface (for HL1270N only)
Sends and receives the data to and from the Ethernet controller ‘AM79C973AKC’. It is PCI

specification revision 2.2 compliant.

3-8

CHAPTER 3 THEORY OF OPERATION

Fig. 3-8

3-9

CHAPTER 3 THEORY OF OPERATION

1.3.2 ROM
HL-1030/1240

An 8 Mbits ROM (x 16 bit) is fitted.

HL-1250

Two 16 Mbits ROMs (x 16 bit) are fitted.

Fig. 3-9

Fig. 3-10

3-10

HL-1270N

Two 32 Mbits ROMs (x 16 bit) are fitted.

CHAPTER 3 THEORY OF OPERATION

Fig. 3-11

3-11

CHAPTER 3 THEORY OF OPERATION

1.3.3 Flash ROM (for HL-1270N only)

HL-1270N

Two 8 Mbits flash ROMs (x 16 bit) are fitted.

1.3.4 DRAM
HL-1030/1240

A 16M-bit DRAM (x 16 bits) is used as the RAM.

Fig. 3-12

Fig. 3-13

3-12

HL-1250/1270N

Two 16M-bit DRAMs (x 16 bits) are used as the RAM.

CHAPTER 3 THEORY OF OPERATION

Fig. 3-14

3-13

CHAPTER 3 THEORY OF OPERATION

1.3.5 Optional RAM

HL-1250/1270N

A 32bit (72 pin) SIMM can be fitted as optional RAM. The main PCB has one slot and the
capacity of SIMM can be from 1 Mbyte to 32 Mbytes.

Fig. 3-15

3-14

1.3.6 Optional serial I/O

HL-1250

The interrupt of the serial I/O is input to the EXINT terminal of the ASIC, and is recognized by
the CPU. A 32-byte register is provided for this I/O, which is read from and written to by the
CPU.

CHAPTER 3 THEORY OF OPERATION

1.3.7 PCI bus

HL-1270N

The interface of the PCI bus is PCI specification revision 2.2 compliant.

Fig. 3-16

Fig. 3-17

3-15

CHAPTER 3 THEORY OF OPERATION

1.3.8 EEPROM
HL-1030/1240

The EEPROM is X24C01A type of two-wire method with a 128 x 8 bits configuration.

HL-1250

The EEPROM is X24C04 type of two-wire method with a 512 x 8 bits configuration.

Fig. 3-18

HL-1270N

The EEPROM is X24C32 type of two-wire method with a 4096 x 8 bits configuration.

1.3.9 Reset circuit
HL-1030/1240

The reset IC is a RN5VD42A. The reset voltage is 4.2V (typ.) and the LOW period of reset is
80ms (typ.)

Fig. 3-19

Fig. 3-20

Fig. 3-21

3-16

HL-1250/1270N

The reset IC is a RN5VD42A. The reset voltage is 4.2V (typ.) and the LOW period of reset is
80ms (typ.)

1.3.10 Engine I/O
HL-1030/1240

Fig. 3-22 shows the engine interface circuit. The interface with the engine PCB is by full­duplex synchronous serial method.

CHAPTER 3 THEORY OF OPERATION

Fig. 3-22

Fig. 3-23

HL-1250/1270N

Fig. 3-23 shows the engine interface circuit. The interface with the engine PCB is by full­duplex synchronous serial method.

Fig. 3-24

3-17

CHAPTER 3 THEORY OF OPERATION

1.4 Engine PCB

The gate array which transforms the serial signal from the main PCB into the parallel signal is
mounted on the engine PCB.

The engine PCB controls the following parts by using the transferred signal data;

Main motor

•

Panel PCB

•

Fan motor

•

Thermistor

•

Polygon motor

•

Solenoid

•

High-voltage power supply

•

For the circuit diagram of the engine PCB, see Appendix 18.

1.5 BR-net PCB (for HL-1270N only)

Toner sensor

•

Cover sensor

•

Front registration sensor

•

Rear registration sensor

•

Upper paper cassette sensor (HL-1250/1270N only)

•

Lower paper cassette registration sensor (HL-1250/1270N only)

•

The BR-net PCB is connected to the ASIC mounted on the main PCB through the PCI bus.
The Ethernet controller, AM79C973AKC is mounted on the BR-net PCB. The controller

incorporates the 10/100 Mbps physical interface which conforms to IEEE 802.3 and is
connected with the external Ethernet through the RJ-45 connector.

For the circuit diagram of the BR-net PCB, see Appendix 19.

3-18

1.6 Power Supply

1.6.1 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 / 1.6 A

+24V / 2.15 A

For the circuit diagram of the low-voltage power supply PCB, see Appendix 20 or 21.

Fuse

Lightning
Absorber

100V: MPW1555
200V: MPW1455

Surge

CHAPTER 3 THEORY OF OPERATION

(Heater)

Thermal

Fuse

Heater
Circuit

Lamp

Line

Filter

Fuse

Rectifier

24V

Regulation

Circuit

5V

Regulation

Circuit

Feedback

Oscillator

(Engin Circuit)

24V

5V

Fig. 3-25

3-19

CHAPTER 3 THEORY OF OPERATION

1.6.2 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 22.

24VI

R1

Current

Regulator

B1

Voltage

Regulator

VR22

Current

Regulator

B102 Q81

Voltage

Regulator

Transfer Roller

Supply
Roller

Photosensitive

Drum

Development

Roller

Corona

Unit

GND

B101 Q101

Voltage

Regulator

Z51 VR51

Fig. 3-26

3-20

2. MECHANICS

2.1 Overview of Printing Mechanism

Second eject roller

Thermistor

Photosensitive drum

Cleaner

Corona wire

Laser Unit

CHAPTER 3 THEORY OF OPERATION

Polygon mirror

Scanner motor

Rear cover

First eject roller

Fixing Unit

Eject sensor lever

Paper

Heat roller

Pressure roller

Pressure plate

Drum Unit

Transfer roller

Paper Cassette

Fig. 3-27

Rear registration
sensor lever

Development roller

Blade

Agitator

Toner sensor

Supply roller

Paper feed roller

Paper pick-up roller

Cassette pressure roller

Separation
pad

Front registration
sensor lever

3-21

CHAPTER 3 THEORY OF OPERATION

Network

Board

(HL-1270N)

Main PCB

Low-Voltage

Power Supply

PCB

Engine

PCB

Front Registration
Sensor

Rear Registration
Sensor

Upper Paper
Cassette Sensor
(HL-1250/1270N)

Lower Paper
Cassette
Registration Sensor
(HL-1250/1270N)

Laser Unit

Laser

Polygon Motor

High-

Voltage

Power

Supply

PCB

Cover Sensor (B)

Drum Unit

Primary Charger (Corona Wire)
Primary Charger (Grid)

Development Roller

Supply Roller

Transfer Roller

Fixing Unit

Halogen
Heater
Lamp

Solenoid

Fan Motor

Main Motor

Toner Sensor PCB (light emission)

Toner Sensor PCB (light reception)

Thermistor (for Heat Roller)

Panel PCB

Fig. 3-28

Cover Sensor (A)

3-22

2.2 Paper Transfer

2.2.1 Paper supply

The paper pick-up roller picks up one sheet of paper from the paper cassette every time it is
rotated and feeds it to the paper feed roller.

CHAPTER 3 THEORY OF OPERATION

Pinch roller

Paper feed roller

Front registration

sensor lever

The paper is gripped between the paper pick-up roller and the separation pad and separated
into individual sheets.

The pick-up roller is directly connected to the clutch mechanism, whose rotation is stopped by
the stopper arm. When the pick-up solenoid is activated, the clutch mechanism is engaged by
the solenoid action and the paper pick-up roller is driven. The paper drawn out of the tray by
the pick-up roller pushes against the front registration sensor lever and the paper top
position/absence of paper is detected by sensing the motion of the lever.

2.2.2 Paper registration

After the paper top position is detected by the front registration sensor, the paper, separated
into individual sheets by the paper pick-up 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
solenoid is turned off, the paper feed roller starts turning, and the paper is fed to the transfer
block in the drum unit.

Pressure plate

Paper pick-up roller

Pinch roller

Separation pad

Fig. 3-29

Photosensitive drum

Paper feed roller

Transfer roller

Rear registration

sensor lever

Fig. 3-30

The rear registration sensor in the path from the feed roller to the transfer roller controls the
first print position on the paper.

3-23

CHAPTER 3 THEORY OF OPERATION

2.2.3 Paper eject

After the printing image on the photosensitive drum is transferred onto the paper, the paper is
fed to the fixing unit to fix unfixed toner onto the paper.

Afterwards, the paper is ejected from the fixing unit by the first eject roller in the fixing unit. The
eject sensor lever detects whether the paper is ejected correctly or not.

After the paper exits from the first eject roller, the paper is turned by the rear cover and ejected
face down into the top output tray through the second eject roller. If the rear cover is open, the
paper is ejected face up straight to the printer rear (straight paper path).

Rear cover

Second eject roller

2.3 Sensors

2.3.1 Cover sensors A and B

Detect opening and closing of the front cover.

Cover sensor (B)

First eject roller

Eject sensor lever

Fig. 3-31

Cover sensor (A)

Fig. 3-32

3-24

2.3.2 Toner sensor

Detects if there is toner in the toner cartridge. The toner sensor at the left side emits light
through the window on the left side of the toner cartridge, then the toner sensor at the right
side receives it when the toner is low. They also detect whether or not the drum unit is
installed. (The toner cartridge is installed in the drum unit.)

Toner sensor

(light emission)

CHAPTER 3 THEORY OF OPERATION

Toner sensor
(light reception)

2.4 Drum Unit

2.4.1 Photosensitive drum

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

2.4.2 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.

2.4.3 Transfer roller

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

2.4.4 Cleaner

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

Fig. 3-33

2.5 Toner Cartridge

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

3-25

CHAPTER 3 THEORY OF OPERATION

2.6 Print Process

2.6.1 Charging

The drum is charged to approximately 870V 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 photosensitive drum is grounded.

870V

Voltage

Regulator

-

+

-

-

+

-

+

-

-

+

-

-

---

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

Aluminum drum sleeve

Organic Photoconductor layer

Grid

HVPS

Photosensitive
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.

2.6.2 Exposure stage

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

Laser detector

Laser diode

Lens

Corona wire

Drum

Paper

Laser beam

f θ lens

Fig. 3-34

Laser beam

Polygon mirror

Motor

Fig. 3-35

3-26

CHAPTER 3 THEORY OF OPERATION

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.

+870

+420

Surface Potential (V)

+200

Drum
Sleeve

0

2.6.3 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 development 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 development
roller. The toner adheres to the development roller and is conveyed to the photosensitive drum
at an even thickness controlled by the blade. The toner is nipped between the development
roller and the drum and developed onto the latent image on the drum. The electrostatic field
between the drum and the development roller, which is DC-biased from the high-voltage power
supply, creates the electrostatic potential to attract toner particles from the development roller
to the latent image area on the drum surface.

1 Cycle of drum

123

(a)

(b)

Time

Development roller

Fig. 3-36

Primary charging

1
2

Laser beam exposure and developing
(a) Unexposed area
( Non image area )
(b) Exposed area
( Image area )

3

Transfer the image to paper

Blade

Corona wire

Photosensitive drum

Transfer roller

Supply roller

Fig. 3-37

3-27

CHAPTER 3 THEORY OF OPERATION

2.6.4 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 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 photo-conductive drum.

2.6.5 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.

First eject roller

Heat roller

Thermistor

Pressure roller

Fig. 3-38

3-28

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

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

(1) Always turn off the power switch and unplug the power cord from the power outlet

before accessing any parts inside the printer.

(2) 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: 70N
M4: 80N

TAPTITE, CUP S
M3: 80N

SCREW
M3: 70N
M4: 80N

(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.









cm
cm

cm

cm
cm

(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

2.2. DISASSEMBL DISASSEMBLY FLOY FLOWW

1

2

3

4

5

6

7

AC CORD

DRUM UNIT

PAPER CASSETTE

NETWORK BOARD

(HL-1270N only)

FRONT COVER

TOP COVER

MAIN COVER

11

BASE PLATE

12

MAIN PCB ASSY

14

LOW-VOLTAGE
PS PCB ASSY

15

ENGINE PCB ASSY

/ HIGH-VOLTAGE

PS PCB ASSY

19

PCB ASSY (emission)

20

PCB ASSY (reception)

PCBs

TONER SENSOR

TONER SENSOR

13

LOWER TRAY RELAY

PCB ASSY

(HL-1250/1270N only)

16

PANEL PCB ASSY

B

17

SOLENOID ASSY

18

FAN MOTOR

A

8

LASER UNIT

9

DRIVE UNIT

10

FIXING UNIT

B

22

PAPER FEED

ROLLER ASSY

23

OUTER CHUTE 1

A

21

PAPER PICK-UP

ROLLER ASSY

4-2

3. DISASSEMBLY PROCEDURE

3.1 AC Cord

(1) Disconnect the AC cord from the printer AC inlet.

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

Printer

3.2 Drum Unit

(1) Open the front cover and remove the drum unit from the printer.

AC cord

Fig. 4-1

Drum unit

Fig. 4-2

4-3

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

3.3 Paper Cassette

(1) Close the front cover, pull out the paper cassette from the printer and remove the paper

from the cassette.

Paper cassette

Front cover

Fig. 4-3

(2) Remove the separation pad holder ASSY by pulling it upwards, then remove the

separation pad spring from the paper cassette.

Separation pad holder

Paper cassette

Fig. 4-4

Separation pad spring

4-4

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

NOTE:
When replacing/re-assembling the separation pad holder, remove the old grease and apply a

suitable amount of grease referring to the figure below;

Paper pick-up roller

Paper cassette

Grease: Molykote PG-662

(1 rice-grain size)

Fig. 4-5

(3) Turn the paper cassette upside down, then remove the cassette cover film by peeling it

carefully from the underside of the cassette.
(4) Remove the M3x8 Taptite screw and remove the paper cassette cover from the front of

the cassette.

Cassette cover film

Paper cassette cover

Fig. 4-6

Taptite, TORX pan M3x8

Paper cassette

NOTE:

'The cover film must not be reused after it has been removed. Always replace it with a new

•

one.
The screw securing the paper cassette cover indicated RED in the figure above is very

•

special. When disassembling/re-assembling the screw, you need a special screw driver.
Refer to the parts reference list.

4-5

  

 

 

 

 

! "#$$%

& ! #$$%  '



$#$$%

$

-"#$$%

-

-

0 

(  )"*'

+ ,, 

-





')"*

$,

')"*

-
/,

$.

$+



$,



., 

$.



CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(10) Turn the cassette the correct way up and slide the two paper guides to the center of the

cassette.
(11) Remove the side guides Left and Right from the paper cassette.

Side guide L

Side guide R

➁

➀

Paper cassette

Fig. 4-9

(12) Unhook the two catches (A) of the pressure plate while pulling the plastic frame outwards,

then unhook the other two catches (B) of the plate while pulling the plastic frame outwards

to remove the pressure plate ASSY.
(13) Unhook the pressure plate spring from the plastic hook to remove the two pressure plate

springs.

Step (12)

(catches (A))

Pressure plate ASSY

Paper cassette

Step (12)

Plastic frame

(catch (B))

Pressure

plate spring

Fig. 4-10

(hook)

Step (13)

4-7

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

NOTE:
When re-assembling the pressure plate ASSY, ensure that the paper indicator arm is under the

pressure plate.

CAUTION:

!

When unhooking the catches to remove the pressure plate, do not bend the pressure plate,
gently ease the plastic cover. If the pressure plate is deformed, paper feeding problems may
occur.

(14) Remove the release lever extension spring.
(15) Unhook the two catches and rotate the lock lever to remove it downwards from the

cassette.

Release lever

extension spring

Lock lever

NOTE:
When re-assembling the lock lever, insert it upwards from underneath the cassette and rotate it

until the two catches lock into place..

(16) Slide the rear paper guide fully forwards in the cassette and remove it from the slot.

Paper cassette

Fig. 4-11

Paper cassette

➁

➀

Rear paper guide

➂

Fig. 4-12

4-8

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(17) Turn the cassette upside down and remove the one M3x8 Taptite screw to remove the

side guide gear. Then remove the one friction spring.
(18) Remove the two side guide racks.
(19) Remove the paper indicator.

Taptite cup M3x8

Side guide gear

Friction spring

➁

Side guide rack

➀

➀

Side guide rack

Step (19)

➀

Paper indicator

Fig. 4-13

NOTE:

When re-assembling the side guide racks, they should both be aligned so that the wide end

•

of the racks are in line with the inside edge of the paper guide release slots in the cassette
before refitting the spring and gear.

When replacing/re-assembling the paper cassette, remove the old grease and apply a

•

suitable amount of grease onto both sides of the paper cassette referring to the figure
below;

➁

Grease: Molykote PG-662

(1 sesame size)

Grease: Molykote PG-662
(1 sesame size)

Paper cassette

Fig. 4-14

4-9

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

3.4 Network Board (for HL-1270N only)

(1) Open the rear cover.
(2) Remove the two M3x8 Taptite screws to remove the access cover.

Access cover

Taptite, bind M3x8

Rear cover

Fig. 4-15

(3) Remove the two M3x6 Taptite screws securing the network board.
(4) Disconnect the connector connected with the main PCB and remove the network board.

Network board

Taptite, cup M3x6

Fig. 4-16

4-10

3.5 Front Cover

(1) Open the front cover.
(2) Remove the four M3x8 Taptite screws from the main cover.

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

Taptite, bind M3x8

Front cover

Main cover

Fig. 4-17

Taptite, bind M3x8

(3) Position the front cover at the angle of 45 degrees and release the bosses at the right and

left hand sides and the link at the left hand side.
(4) Remove the front cover.

°

45

(boss)

(boss)

➀

Link

Step (3)

Front cover

➂

➁

Front cover

Fig. 4-18

4-11

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

3.6 Top Cover

(1) Remove the two M3x10 Taptite screws securing the top cover.
(2) Release the hooks on either side of the top cover from the bosses on the main cover by

pulling the top cover forwards.

Top cover

Step (2)

Taptite, cup M3x10

(boss)

Fig. 4-19

Taptite, cup M3x10

(3) Open the rear cover, then release the hooks (A) at the right and left hand sides of the top

cover while pushing them towards the side of the printer from the rear.
(4) Lift up the top cover and release the hooks (B) at the right and left hand sides of the top

cover to remove the top cover.

Top cover

(hook (B))

Rear cover

Step (3)

(hook (A))

(hook (B))

Rear cover

Fig. 4-20

4-12

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

P

R2000082

(5) Turn the top cover upside down and remove the second eject roller ASSY by lifting the

middle of the roller upwards until the roller releases from the cover.

Second eject roller ASSY

Top cover

3.7 Main Cover

CAUTION:

!

Be sure to wear a pair of gloves when handling the main cover since its sharp edges may hurt
you.

(1) Remove the two M3x8 Taptite screws from the rear of the main cover .
(2) Release the hooks at the right and left hand top sides of the printer, then, while pulling the

cover outwards to clear the power socket and switch, lift up the main cover to remove it
complete with the rear cover.

Step (1)

Fig. 4-21

Rear cover

(hook)

(hook)

Taptite, bind M3x8

Main cover

Fig. 4-22

4-13

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(3) Bend the tray extension flap upwards slightly to remove the tray extension flap.

Tray extension flap

➁

➀

Main cover

Fig. 4-23

(4) Release the rear cover springs Left and Right from the hooks on the main cover.
(5) Remove the rear cover complete with the rear cover springs Left and Right from the main

cover.
(6) Remove the four pinch rollers and four pinch roller springs by moving them to the vertical

and then removing them by lifting them upwards.

Rear cover

Rear cover

Step (4)

Pinch roller

Pinch roller

spring

Step (6)

Pinch roller

Fig. 4-24

4-14

Rear cover

spring R/L

Main cover

3.8 Laser Unit

(1) Remove the three M3x16 Taptite screws.
(2) Push the P harness cover to the right to release it from the hook and remove the P

harness cover.
(3) Disconnect the LD harness and the polygon motor connector.
(4) Taking care not to touch the lens and mirror, remove the laser unit.

Laser unit

Polygon motor harness

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

LD harness

Taptite, cup M3x16

Polygon motor harness

Taptite, cup M3x16

Taptite, cup M3x16

(hook)

P harness

cover

Fig. 4-25

CAUTION:

!

Never touch the reflect mirror and lens inside the laser unit. If there is any dirt or dust on

•

the mirror or lens, blow it off using an air gun.
Never touch the scanner window on the printer body. If there is any dirt or dust on the

•

window, blow it off using an air gun. If cleaning the underside of the scanner window, wipe
off dirt or dust with soft clean paper. Refer to subsection 3.3 ‘Cleaning the Scanner

Window’ in CHAPTER 5.

Scanner window

Laser unit

Reflect mirror

Printer body

Lens

Fig. 4-26

4-15

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

PR2001049

3.9 Drive Unit

(1) Place the printer body carefully on its right hand side so that the drive unit is at the top.

(2) Remove the five M3x6 Taptite screws securing the gear plate and the Gear 21 pressure

plate.

(3) Disconnect the heater harness connector and release the panel PCB harness from the

hooks.

(4) Carefully lift the drive unit and while supporting the PCB, disconnect the main motor

connector.

(5) Remove the drive unit.

Taptite, cup
M3x6

(hook)

Taptite, cup M3x6

Gear 21 pressure plate

Panel PCB harness

Taptite, cup
M3x6

Taptite, cup
M3x6

Heater harness
connector

Fig. 4-5

Drive unit

Taptite, cup M3x6

Main motor

STEP (4)

Main motor connector

(6) Remove the four M3x6 Taptite screws to remove the main motor ASSY from the drive

unit.

Taptite, cup M3x6

Taptite, cup M3x6

Main motor ASSY

Drive unit

Fig. 4-7

4-16

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

M

NOTE:
When replacing/re-assembling the main motor, remove the old grease and apply a suitable

amount of grease referring to the figure below;

ain motor ASSY

Grease: Molykote PG-662
(1 rice-grain size)

Fig. 4-29

(7) Remove the development joint complete with the joint spring, then remove the link.

Development joint

Link

Joint spring

Fig. 4-30

4-17

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

G

3.10 Fixing Unit

(1) Place the main frame on its base so that the rear side is facing you.
(2) Press the two hooks inwards to remove gear 59.
(3) Disconnect the two connectors of the heater harness and release the harness from the

hooks on the top of the fixing unit.
(4) Remove the one M3x8 Taptite screw and two shoulder screws securing the fixing unit,

taking care not to lose the contact spring fitted to the front left hand.

Heater harness

connector

Shoulder screw

Main frame

Fixing unit

Taptite, cup M3x8

Fig. 4-31

ear 59

NOTE:
When re-assembling the fixing unit, ensure you do not forget to refit gear 59.

Gear 59

Step (2)

Heater harness

(5) Lift up the fixing unit and move it toward you and to the left to allow the drive gear to clear

the frame and then disconnect the thermistor connector from the engine PCB.
(6) Remove the fixing unit from the main frame.

Engine PCB

Main frame

Thermistor connector

Fig. 4-32

4-18

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

NOTE:
When re-assembling the fixing unit, align the fixing unit frame at the drive unit side into the

concave part of the main frame.

Fixing unit

Main frame

Main frame

(concavity)

Fixing unit

Fig. 4-33

(7) Remove the M3x10 screw to remove the star wheel holder ASSY from the fixing unit by

lifting the left hand end of the assembly slightly and then moving the assembly to the right

to release the right hand end from the fixing unit frame.

Fixing unit

Star wheel holder ASSY

Screw, bind M3x10

Fig. 4-34

4-19

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(8) Remove the two M3x20 Taptite screws from the top of the fixing unit frame.
(9) Release the thermistor harness from the hooks.
(10) Release the two hooks at the right and left sides securing the fixing unit cover to the fixing

unit frame.

Taptite, cup M3x20

(hook)

Thermistor harness

Fixing unit frame

Fig. 4-35

(hook)

(hook)

Fixing unit frame

Thermistor harness

Taptite, cup M3x20

(hook)

(11) Remove the fixing unit cover from the fixing unit frame.

(hook)

(hook)

Fixing unit cover

Fig. 4-36

Fixing unit frame

(hook)

(hook)

4-20

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(12) Remove the one M3x10 Taptite screw securing the halogen lamp connector plate at the

drive unit side of the fixing unit frame and then loosen the M3x6 screw at the other side.
(13) Lift the right hand end of the heat roller and remove the halogen heater lamp from the heat

roller.

Screw, cup M3x6

Heat roller

Halogen heater lamp

Halogen heater lamp

Heat roller

Colored side
115V: Yellow
230V: Purple

Taptite, pan M3x10

Halogen lamp
connector plate

Fig. 4-37

NOTE:
When re-assembling the halogen heater lamp, ensure that the direction of the halogen heater

lamp is correct referring to the figure above.

CAUTION:

!

Never touch the surface of the halogen heater lamp.

•

When securing the screw to assemble the halogen lamp connector plate, ensure you use

•

the plastic jig as shown in the figure below to avoid damaging the edge of the halogen
heater lamp.

Halogen lamp

connector plate

Halogen heater lamp

Taptite, pan M3x10

Plastic jig

Fig. 4-38

4-21

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(14) Lift and remove the heat roller. The heat roller gear will also come off.
(15) Remove the heat roller bearing from the left hand end of the heat roller. To remove the

bearing at the gear side, first remove the two washers, then remove the bearing.

Heat roller bearing

Heat roller

Heat roller bearing

Washer

Heat roller gear

Washer

Fig. 4-39

CAUTION:

!

Never touch the surface of the heat roller.

NOTE:

When re-assembling the heat roller to the fixing unit frame, place the two projections at the

•

right hand side of the roller onto the bosses on the frame as shown in the figure below.

Heat roller gear

(projection)

Heat roller bearing

Heat roller

(boss)

Fig. 4-40

4-22

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

• When re-assembling the heat roller bearing which is assembled at the heat roller gear side,

fix the bearing onto the heat roller so that the embossment whose thickness is 0.5mm is at
the top.

Heat roller gear

(embossment)

Heat roller bearing

Heat roller

Fig. 4-41

• When re-assembling the heat roller to the fixing unit frame, ensure you do not damage the

heat roller with the four hooks on the fixing unit frame.

(hooks)

Heat roller

(hooks)

Fixing unit frame

Fig. 4-42

4-23

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(16) Remove the heat roller cleaner complete with the cleaner spring from the fixing unit frame

by lifting it upwards until the spring releases from the frame.

(17) Remove the cleaner spring from the heat roller cleaner.

Heat roller cleaner

Fixing unit frame

Cleaner spring

Cleaner spring

Heat roller cleaner

Fig. 4-43

NOTE:

• When re-assembling the heat roller cleaner complete with the cleaner spring onto the fixing

unit frame, ensure the direction of the roller is correct referring to the figure above.

• Ensure also that the spring is seated correctly in the locating channel and does not

protrude from either end.

(18) Remove the pressure roller from the fixing unit cover by gently levering the right hand

side upwards to release it from the bearing and then sliding it to the right to remove it.

(19) Remove the pressure roller cleaner complete with the cleaner spring from the fixing unit

cover by lifting it upwards until the spring releases from the cover.

(20) Remove the cleaner spring from the pressure roller cleaner.

Pressure roller

Pressure roller cleaner

Fixing unit cover

Pressure roller cleaner

Fig. 4-44

Cleaner spring

4-24

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

NOTE:

• When re-assembling the pressure roller cleaner complete with the cleaner spring onto the

fixing unit cover, ensure the direction of the roller is correct referring to the figure above.

• Ensure also that the spring is seated correctly in the locating channel and does not

protrude from either end.

(21) Release the thermistor harness from the hooks on the fixing unit frame and then remove

the one M3x12 Taptite screw and remove the thermistor.

(hooks)

Thermistor

Fixing unit frame

Fig. 4-45

Taptite, cup M3x12

NOTE:
When re-assembling the thermistor to the fixing unit frame, ensure the direction of the

thermistor is correct referring to the figure below;

Fixing unit frame

Thermistor

Taptite, cup M3x12

Fig. 4-46

4-25

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(22) Press the two catches holding the idle gear 13 to the frame and then remove the idle gear

13. Slide the first eject roller to the left until the slot in the roller shaft aligns with the slot
in the frame and then remove the roller by pulling it forwards.

Fixing unit frame

First eject roller

Idle gear 13

Fig. 4-47

(23) Remove the eight eject pinch rollers and pinch springs by lifting them upwards until the

springs release from the frame.

Fixing unit frame

Pinch spring

Eject pinch roller

Fig. 4-48

4-26

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

(24) Turn the frame up-side down. Remove the black films (4 pcs.) and then remove the pick

off fingers (4 pcs.) using a piece of tweezers.

Pick off finger

Tweezers

PR2000057

Film

Pick off finger

Fig. 4-48a

(25) Release the paper eject actuator from the hook on the fixing unit cover, and then slide the

paper eject actuator to the right direction to remove the paper eject actuator and the eject
paper spring from the fixing unit cover.

Paper eject actuator

Eject actuator spring

Fixing unit cover

Fig. 4-48b

4-26A

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

NOTE:

When re-assembling the paper eject actuator and the eject paper spring to the fixing unit
cover, ensure the paper eject actuator is seated correctly in the locating channel referring to
the figure below;

PR2000057

Paper eject actuator

Fixing unit cover

Eject actuator spring

Fig. 4-48c

4-26B

3.11 Base Plate

(1) Turn the main frame upside down.
(2) Remove the five M4x10 Taptite screws and 16 (sixteen) M3x8 Taptite screws from the

base plate.
(3) Slide the base plate to the rear of the printer to remove it.

CAUTION:

!

Do not remove the ground wire connected to the base plate if it is not necessary to remove the
low-voltage power supply unit. Unnecessary disconnection of the ground wire may cause
increased printer noise.

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

Taptite, bind M4x10

Taptite, bind M3x8

Taptite, bind M3x8

Main frame

Ground wire connection

Taptite, bind M3x8

Taptite, bind M3x8

Base plate

Fig. 4-48

4-27

CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY

CAUTION:

!

When re-assembling the base plate, be sure that the ground wire connected to the paper

•

feed roller ASSY is fixed into the slit on the plastic chute referring to the figure below;

Plastic chute

When securing the screws to assemble the base plate, ensure you use the jig shaft

•

referring to the figure below so that the engine PCB is assembled correctly;

Ground wire

(slit)

Main frame

Fig. 4-49

Taptite, bind M4x10

Main frame

Jig shaft

Taptite, bind M4x10

Base plate

Fig. 4-50

4-28