Brother WL-660 Series User manual

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English
Please read this manual thoroughly before using the printer.
Brother Laser Printer for Windows™
WL-660 Series
User’s Guide
Keep this manual in a convenient place for quick and easy reference at all times.

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Shipment of the Printer
If for any reason you must ship your Printer, carefully package the
Printer to avoid any damage during transit. It is recommended that you
save and use the original packaging. The Printer should also be
adequately insured with the carrier.
Warning
When shipping the Printer, the DRUM UNIT assembly including the
TONER CARTRIDGE must be removed from the Printer and placed in
the plastic bag. Failure to remove and place it in the plastic bag
during shipping will cause severe damage to the Printer and will
VOID THE WARRANTY.
1 Remove the drum unit. 2 Place it in the plastic bag and fold
the plastic bag under the drum unit.
3 Wrap it in the corrugated cardboard. 4 Re-pack the printer.
See “RE-PACKING THE PRINTER” in
Chapter 5.

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Laser Printer WL-660 Series for Windows®
User’s Guide
(For USA & CANADA Only)
For technical and operational assistance, please call:
In USA 1-800-276-7746 (outside California)
714-859-9700 Ext. 329 (within California)
In Canada 1-800-361-6466
If you have comments or suggestions, please write us at:
In USA Printer Customer Support
Brother International Corporation
15 Musick
Irvine, CA 92718
In Canada Brother International Corporation, Ltd.
1, Rue Hôtel De Ville
Dollard-des-Ormeaux P.Q.
Canada H9B3H6
BBS
For downloading drivers from our Bulletin Board Service, call 1-714-
859-2610. Please log on to our BBS with your first name, last name
and a four digit number for your password. Our BBS supports
modem speeds up to 14,400, 8 bits no parity, 1 stop bit.
DEALERS/SERVICE CENTERS
For the name of an authorized dealer or service center, call 1-800-
284-4357.

USER’S GUIDE
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Trademarks
The brother logo is registered trademark of Brother Industries, Ltd.
TrueType is a trademark of Apple Computer, Inc.
IBM and IBM PC 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 in the U.S.
and other countries.
All other brand and product names mentioned in this User’s Guide are
registered trademarks of their respective companies.
Compilation and Publication Notice
Under the supervision of Brother Industries Ltd., this manual has been
compiled and published, covering the latest product descriptions and
specifications.
The contents of this manual and the specifications of this product are
subject to change without notice.
Brother reserves the right to make changes without notice in the
specifications and materials contained herein and shall not be responsible
for any damages (including consequential) caused by reliance on the
materials presented, including but not limited to typographical and other
errors relating to the publication.
©1995 Brother Industries Ltd.

TABLE OF CONTENTS
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Definitions of Warnings, Cautions, and Notes
The following conventions are used in this User’s Guide:
Warning
Indicates warnings that must be observed to prevent possible
personal injury.
☛Caution
Indicates cautions that must be observed to use the printer properly or
prevent damage to the printer.
✒Note
Indicates notes and useful tips to remember when using the printer.
To Use the Printer Safely
Warning
After you have used the printer, some internal parts of the printer
are extremely hot. When you open the top cover of the printer, never
touch the shaded parts shown in the following diagram.
Inside the printer
Warning
Before cleaning the printer, unplug the power cord.

USER’S GUIDE
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TABLE OF CONTENTS
REGULATIONS vi
CHAPTER 1 INTRODUCTION
ABOUT THE GUIDEBOOKS 1-1
Learning How to Use the Printer 1-1
ABOUT YOUR PRINTER 1-2
Printer Overview 1-2
System Requirements 1-3
Features 1-3
OPERATING AND STORAGE ENVIRONMENT 1-5
Power Supply 1-5
Environment 1-5
CHAPTER 2 PAPER HANDLING
PAPER SPECIFICATIONS 2-1
MULTI-PURPOSE SHEET FEEDER 2-4
MANUAL FEED SLOT 2-8
OUTPUT TRAY AND PAPER SUPPORT WIRE 2-9
CHAPTER 3 PRINTER CONTROL
CONTROL PANEL 3-1
Lamps 3-1
READY Lamp 3-1
ALARM Lamp 3-1
READY↔SLEEP Switch 3-2
Sleep Mode 3-2
Test Page 3-3
SETUP DIALOG BOX 3-4
Paper 3-6
Duplex 3-7
Half Tone 3-7
Printer Configuration 3-8
Quality 3-8
CHAPTER 4 OPTIONS
MEMORY BOARD 4-1

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CHAPTER 5 MAINTENANCE
REPLACING THE TONER CARTRIDGE 5-1
REPLACING THE DRUM UNIT 5-6
ADJUSTING THE PRINT DENSITY 5-10
CLEANING THE PRINTER 5-11
Cleaning the Printer Exterior 5-11
Cleaning the Printer Interior and Drum Unit 5-12
RE-PACKING THE PRINTER 5-15
CHAPTER 6 TROUBLESHOOTING
ALARM INDICATIONS AT A GLANCE 6-1
Operator Calls 6-1
Service Calls 6-2
PAPER JAMS 6-3
Q & A 6-7
Setting up the Printer Hardware and Software 6-7
Paper Handling 6-8
Printing 6-8
Print Quality 6-9
APPENDICES
PRINTER SPECIFICATIONS Appendix-1
Printing Appendix-1
Functions Appendix-1
Electrical and Mechanical Appendix-2
PARALLEL INTERFACE SPECIFICATION Appendix-3
INDEX Index-1

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REGULATIONS
Federal Communications Commission Compliance Notice (For USA Only)
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
❏Reorient or relocate the receiving antenna.
❏Increase the separation between the equipment and receiver.
❏Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
❏Consult the dealer or an experienced radio/TV technician for help.
Important – About the Interface Cable
This printer has been certified to comply with FCC standards, which are applied to the U.S.A.
only. A shielded interface cable should be used according to FCC 15.27(C). In addition, a
grounded plug should be plugged into a grounded AC outlet after checking the rating of the
local power supply for the printer to operate properly and safely.
Caution
Changes or modifications not expressly approved by Brother Industries, Ltd. could void the
user’s authority to operate the equipment.
Laser Safety (For 110–120 V Model Only)
This printer is certified as a Class I laser product under the U.S. Department of Health and
Human Services (DHHS) Radiation Performance Standard according to the Radiation Control
for Health and Safety Act of 1968. This means that the printer does not produce hazardous
laser radiation.
Since radiation emitted inside the printer is completely confined within protective housings
and external covers, the laser beam cannot escape from the machine during any phase of user
operation.

REGULATIONS
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FDA Regulations (For 110-120 V Model Only)
U.S. Food and Drug Administration (FDA) implemented regulations for laser products
manufactured from August 2, 1976. These regulations apply to laser products manufactured
from August 1, 1976. Compliance is mandatory for products marketed in the United States.
The label shown on the back of the printer indicates compliance with the FDA regulations
and must be attached to laser products marketed in the United States.
MANUFACTURED:
BROTHER INDUSTRIES, LTD.
15-1 Naeshiro-cho Mizuho-ku Nagoya, 467 Japan
This product complies with FDA radiation performance standards, 21 CFR
chapter 1 subchapter J
Caution
Use of controls, adjustments or performance of procedures other than those specified in this
manual may result in hazardous invisible radiation exposure.
DECLARATION OF CONFORMITY (EUROPE)
We, Brother International Europe Ltd.,
Brother House 1 Tame Street, Guide Bridge, Audenshaw, Manchester M34 5JE, UK.
declare that this products is in conformity with the following normative documents.
Safety: EN 60950, EN 60825
EMC: EN 55022 Class B, EN 50082-1
following the provisions of the Low Voltage Directive 73/23/EEC and the Electromagnetic
Compatibility Directive 89/336/EEC (as amended by 91/263/EEC and 92/31/EEC).
Manufacture at the following facilities is carried out under a Quality System which is
registered by BSI Quality Assurance and JQA Quality Assurance.
Brother Industries Ltd., Kariya Plant
1-5, Kitajizoyama, Noda-cho, Kariya-shi,
Aichi-ken 448, Japan
BSI Certificate of Registration No. FM27391
JQA Certificate of Registration No. 0340
Issued by:
Brother International Europe Ltd.
European Development and Technical Services Division

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IEC 825 Specification (For 220–240 V Model Only)
This printer is a Class 1 laser product as defined in IEC 825 specifications. The label shown
below is attached in countries where required.
This printer has a Class 3B Laser Diode which emits invisible laser radiation in the Scanner
Unit. The Scanner Unit should not be opened under any circumstances.
Caution
Use of controls, adjustments or performance of procedures other than those specified in this
manual may result in hazardous radiation exposure.
The following caution label is attached near the scanner unit.
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.

REGULATIONS
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For Your Safety
To ensure safe operation, the three-pin plug supplied must be inserted only into a standard
three-pin power point which is effectively grounded through the normal household wiring.
Extension cords used with the equipment must be three-conductor and be correctly wired to
provide connection to ground. Incorrectly wired extension cords are a major cause of fatalities.
The fact that the equipment operates satisfactorily does not imply that the power is grounded
and that the installation is completely safe. For your safety, if in any doubt about the effective
grounding of the power, consult a qualified electrician.
Disconnect device
The equipment must be installed near the socket outlet which must be easily accessible.
Manufactured at
Brother Industries Ltd.
Kariya Plant
1-5, Kitajizoyama, Noda-cho, Kariya-shi, Aichi-ken 448, Japan.
Manufacturing at Kariya Plant is carried out under a Quality System which is registered by
JQA Quality Assurance and BSI Quality Assurance.
JQA Certificate of Registration No. 0340.
BSI Certificate of Registration No. FM27391
Canadian Department of Communications Compliance Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus as set out in the interference-causing equipment standard entitled “Digital
Apparatus”, ICES-003 of the Department of Communications.
IMPORTANT (For U.K. only)
If the power cord supplied with this printer is not suitable for your electrical outlet, remove
the plug from the mains cord and fit an appropriate three pin plug. If the replacement plug is
intended to take a fuse then fit the same fuse as the original.
If a moulded plug is severed from the power cord then it should be destroyed because a plug
with cut wires is dangerous if plugged into a live socket outlet. Do not leave it where a child
might find it.
In the event of replacing the plug fuse, fit a fuse approved by ASTA to BS1362 with the same
rating as the original fuse.
Always replace the fuse cover. Never use a plug with the cover omitted.
WARNING - THIS PRINTER MUST BE PROPERLY EARTHED.
The wires in the mains cord are coloured in accordance with the following code:
Green and yellow : Ground
Blue : Neutral
Brown : Live
The colours of the wiring in the power lead of this printer may not correspond with the
markings which identify the terminals in your plug. If you need to fit a different plug,
proceed as follows.

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Remove a length of the cord outer sheath, taking care not to damage the coloured insulation
of the wires inside.
Cut each of the three wires to the appropriate length. If the construction of the plug permits,
leave the green and yellow wire longer than the others so that, in the event that the cord is
pulled out of the plug, the green and yellow wire will be the last to disconnect.
Remove a short section of the coloured insulation to expose the wires.
The wire which is coloured green and yellow must be connected to the terminal in the plug
which is marked with the letter “E” or by the earth symbol or coloured green or green and
yellow.
The wire which is coloured blue must be connected to the terminal which is marked with the
letter “N” or coloured black or blue.
The wire which is coloured brown must be connected to the terminal which is marked with
the letter “L” or coloured red or brown.
The outer sheath of the cord must be secured inside the plug. The coloured wires should not
hang out of the plug.

CHAPTER 1 INTRODUCTION
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CHAPTER 1
INTRODUCTION
ABOUT THE GUIDEBOOKS
Learning How to Use the Printer
You have two guidebooks for this printer. Read each guidebook in the
following order:
1. Read the Quick Setup Guide to set up your printer and connect it to
your computer. It also contains information about setting up your
computer for your printer by installing the printer driver, fonts and
Remote Printer Console Program.
2. Read the User’s Guide to get information about the following:
• Features and operating environment requirements of your printer –
Chapter 1
• Paper Handling – Chapter 2
• Printer Control – Chapter 3
• Options – Chapter 4
• Maintenance – Chapter 5
• Troubleshooting – Chapter 6
• Specifications – Appendices
• Index

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ABOUT YOUR PRINTER
Printer Overview
Fig. 1-1 Front View
Fig. 1-2 Rear View
Multi-Purpose Sheet Feeder
Control Panel
Output Tra
y
Paper Support Wire
Paper Support
Paper Guide
Manual Feed Slot
Top Cover
Power Cord
Print Density Dial
Parallel Interface Port

CHAPTER 1 INTRODUCTION
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System Requirements
Check the following system requirements to setup and operate the printer:
• IBM PC or compatible with 80486 SX or higher microprocessor
• Parallel interface (or printer port)
• 4 MB or more of memory
• 10 MB of space available on your hard disk for the printer driver and all
fonts
• Microsoft Windows 3.1/3.11
☛Caution
This printer has been designed specially for Windows 3.1. It cannot work
in a DOS environment, such as MS-DOS.
Features
This printer has the following features:
❏600 dpi Resolution and 6 ppm Printing Speed
600 dots per inch (dpi) with microfine toner and six pages per minute
(ppm) printing speed (A4 or Letter size paper).
❏User-Friendly Operation for Windows
The dedicated printer driver and TrueType™-compatible fonts for
Microsoft®Windows 3.1 are available on the floppy disk supplied
with your printer. You can easily install them into your Windows
system using our installer program. The driver supports our unique
compression mode to enhance printing speed in Windows applications
and allows you to set various printer settings including toner savings
mode, custom paper size, sleep mode, gray scale adjustment,
resolution and so forth. You can easily set these print options in the
graphic dialog boxes through Printer Setup within Windows Control
Panel.
❏Printer Status Monitor with Bi-directional Parallel Interface
The printer driver can monitor your printer’s status using bi-
directional parallel communications.
The 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. For example: when your
printer is out of paper, the dialog box will display “Paper Empty” and
instructions for the corrective action to take.

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❏Versatile Paper Handling
The printer has a multi-purpose sheet feeder and straight paper path.
Using this mechanism, you can load A4, letter, legal, B5, A5, and
executive sizes of paper, as well as various other paper sizes including
envelopes, postcards, organizer paper, or a custom paper size.
The multi-purpose sheet feeder also allows manual paper loading for
printing labels and transparencies.
❏❏APT (Advanced Photoscale Technology)
The APT feature of the printer driver allows you to print photographs
with photographic quality output.
❏Auto Resolution Reduction
When a printout is requested in 600 dpi mode with the standard
amount of printer memory, the printer might not be able to print at
600 dpi due to insufficient memory. To prevent this memory error, the
printer driver automatically reduces the resolution to 300 dpi or less
for successful printing.
❏Environment-Friendly, Economy Printing Mode
This feature will cut your printing cost by saving toner. It is useful to
obtain 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
Sleep mode automatically reduces power consumption when the
printer is not in use. The printer consumes less than 8W when in sleep
mode. The time-out for auto sleep mode can be set through the
Windows printer driver.
❏Low Running Cost
The toner cartridge is separate from the drum unit. Each toner
cartridge will give you approximately 3,000 pages, which is cost
effective and ecologically friendly. (In some areas the printer is
supplied with a starter toner cartridge which must be replaced after
1,000 pages.)

CHAPTER 1 INTRODUCTION
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OPERATING AND STORAGE ENVIRONMENT
Please take note of the following before using the printer:
Power Supply
Use the printer within the specified power range.
AC power: ±10% of the rated power voltage in your district
Frequency: 50 Hz (220 V– 240 V) or 60 Hz (110–120 V)
The power cord, including extensions, should not exceed 5 meters (16.5
feet).
Do not share the same power circuit with other high-power appliances.
Particularly an air conditioner, copier, shredder etc. If using the printer
with these appliances is unavoidable, we recommend that you use a
voltage transformer or a high-frequency noise filter.
Use a voltage regulator if the power source is not stable.
Environment
The printer should be installed near a power outlet, which is easily
accessible.
Use the printer only within the following ranges of temperature and
humidity:
Ambient temperature: 10°C to 32.5°C (59°F to 90.5°F)
Ambient humidity: 20% to 80% (without condensation)
Ventilate the room where you use the printer.
Place the printer on a flat, horizontal surface.
Keep the printer clean. Do not place the printer in a dusty place.
Do not block the ventilation hole of the printer.
Do not place the printer where it is exposed to direct sunlight. Use a blind
or 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.

USER’S GUIDE
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CHAPTER 2 PAPER HANDLING
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CHAPTER 2
PAPER HANDLING
PAPER SPECIFICATIONS
The printer can handle paper that conforms to the following specifications:
Paper Type Paper Size Paper Weight Sheet
Feeder Manual
Cut sheet A4, Letter, Legal, B5, A5,
Executive, Custom size
70-216 x 127-356 mm,
2.75”-8.5” x 5”-14”
●●
Envelopes DL, C5, COM-10,
Monarch 60-135 g/m2
(16-36 lb.) ●●
Organizer Day-Timer®J, K, L, M
70-216 x 127-356 mm
2.75”-8.5” x 5”-11”
●●
Labels
Transparencies 70-216 x 127-356 mm, 2.75”-8.5” x 5”-14” ●
Paper Capacity in Feeder
Multi-purpose
Sheet Feeder : Up to 22 mm (0.87 inch) in Height ( below the mark ▼. )
Approx. 200 sheets of 75 g/m2(20 lb.) A4/Letter paper or 10
envelopes
Output Tray : Approx. 100 sheets of 75 g/m2(20 lb.) A4/Letter paper
Remarks It is recommended that you test paper, especially special sizes and types of
paper, on this printer before purchasing large quantities.
Avoid feeding labels with carrier sheets exposed or your printer will be
damaged. Do not feed label sheets through the printer more than once.
Use a recommended type of paper, especially plain paper and
transparencies, for optimum printing. For more information on paper
specifications, consult your nearest authorized sales representative or the
place where you purchased your printer.
We recommend you use labels or transparencies which are designed for
laser printers.
We recommend you use long-grained paper for the best print quality.
If the paper will not load from the multi-purpose sheet feeder, use the
manual feed slot and try again.

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Before using paper with holes such as organizer sheets, you must fan the
stack well to avoid paper jams and misfeeds.
Before using any paper, make sure that it is not curled. If so, you should
straighten the paper as much as possible. Feeding curled paper will cause
paper jams and misfeeds.
Fig. 2-1 Fan the Paper and
Straighten the Paper
The following types of envelopes are not recommended for use:
• Damaged, curled, wrinkled, or irregularly shaped envelopes
• Extremely shiny or highly textured envelopes
• Envelopes with clasps
• Envelopes of baggy construction
• Envelopes not sharply creased
• Embossed envelopes
• Envelopes already printed with a laser printer
• Envelopes pre-printed on the inside
• Envelopes that cannot be arranged uniformly when placed in a pile
Fig. 2-2 Envelopes