Brother MFC 4550 User manual

These machines are made for use in the USA or CANADA only. We
can not recommend using them overseas because it may violate the
Telecommunications Regulations of that country and the power
requirements of your fax machine may not be compatible with the
poweravailableinforeigncountries.UsingUSAorCANADAmodels
overseas is at your own risk and will void your warranty.
UF72440013
Printed in Japan
*Manufactured by Brother Industries Ltd. whose quality system
is registered by BSI and JQA.
BSI Certificate of registration No. FM27391
JQA Certificate of registration No. JQA-0340
Brother International Corporation
200 Cottontail Lane,
Somerset, NJ 08875-6714, U.S.A.
Brother International Corporation (Canada) Ltd.
1 rue Hôtel de Ville,
Dollard-des-Ormeaux, QC, CANADA H9B 3H6
MFC 4550/6550MC/7550MC
OP-US-5.0
MFC 4550
MFC 6550MC
MFC 7550MC
OPERATIONS
MANUAL
for Fax, Printer, Copier
CONTENTS
Chapter 1: THE CONTROL PANEL KEYS
Chapter 2: HOW TO USE ON-SCREEN PROGRAMMING
(OSP)AND HELP KEY
Chapter 3: TELEPHONE FUNCTION SETTINGS
Chapter 4: USING THE UNIT AS A TELEPHONE
Chapter 5: SENDING FAXES
Chapter 6: RECEIVING FAXES AND OTHER CALLS
Chapter 7: POLLING
Chapter 8:
REMOTE FAX OPTIONS (Only for MFC 4550)
Chapter 9: MESSAGE CENTER MODE SETTINGS
(Only for MFC 6550MC/7550MC)
Chapter 10: USING THE MFC AS A PRINTER
Chapter 11: PRINTING REPORTS AND LISTS
Chapter 12: HOW TO USE THE COPY FUNCTION
Chapter 13: REPLACING TONER CARTRIDGE AND DRUM UNIT
Chapter 14: REGULAR MAINTENANCE
Chapter 15: OPTIONAL ACCESSORIES
Chapter 16: TROUBLESHOOTING PROCEDURES
Chapter 17: SPECIFICATIONS
Chapter 18: IMPORTANT INFORMATION
Chapter 19: INDEX

MFC 4550/6550MC/7550MC
OP-US-5.0
1. Remove the drum unit.
Shipment of the Multi-Function Center (MFC)
If for any reason you must ship your MFC, carefully package the MFC
to avoid any damage during transit. It is recommended that you save
and use the original packaging. The MFC should be adequately insured
with the carrier.
Warning
When shipping the MFC, the DRUM UNIT assembly including the TONER
CARTRIDGE must be removed from the machine (MFC) and placed in
the zip lock bag. Failure to remove it and place it in the zip lock bag
during shipping, will cause severe damage to the machine and will
VOID THE WARRANTY.
2. Place the drum unit in the zip lock
bag.
3. Repack the Machine (MFC).

MFC 4550/6550MC/7550MC
OP-US-5.0
Introduction to the Operations Manual
forFax,Printer,Copier
Have you set up your MFC and prepared your computer for
the printer mode by following the instructions in the Setup
Manual? The Setup Manual will help you prepare your MFC
touseitasafax,printerandcopier.
Your Multi-Function Center 6550MC/7550MC has 6
performance modes in one machine. It is a Fax, Printer,
Copier, Scanner, PC Fax and Message Center.
And your MFC 4550 has 5 performance modes. It is a Fax,
Printer, Copier, Scanner and PC Fax.
After you complete setting up the MFC, see the “Operations
ManualforFax, Printer, Copier,”formoreinformationabout
your MFC, such as functions of the machine and the control
panel. Information about maintenance, troubleshooting and
technicalspecificationsarealsoavailableinthismanual.
Please keep this manual beside your MFC, so you can access
important information whenever necessary.
See the Multi-Function Link Pro Owner's Manual for
information on how to set up your MFC and Personal Computer
and how to use the Scanner and PC Fax.

MFC 4550/6550MC/7550MC
OP-US-5.0
TABLE OF CONTENTS
• ·· For Your Information
1. THE CONTROL PANEL KEYS............... 1-1
TELEPHONE AREA ................................ 1-2
ONE-TOUCH, PRINTER AND COPY AREA .............. 1-3
LCD & USER SETUP AREA .......................... 1-5
MESSAGE CENTER AREA (Only for MFC 6550MC/7550MC) 1-7
2. HOW TO USE ON-SCREEN PROGRAMMING (OSP)
AND HELP KEY .......................... 2-1
User-friendly Programming ........................... 2-1
Using the Function Mode to Access On-screen Programming
(OSP) ........................................... 2-1
Alternating Displays for On-screen Programming (OSP) ..... 2-2
Function Selection Table ............................. 2-2
Using the Help Key ................................. 2-9
How to Print a Help List ............................. 2-9
How to Enter Text in Function Mode ................... 2-10
How to Enter Special Characters, Symbols and Punctuation
Marks in Function Mode ............................ 2-11
How to Set the Sleep Time ........................... 2-12
3. TELEPHONE FUNCTION SETTINGS ........ 3-1
Setting the Dialing Mode (Tone/Pulse) ................... 3-1
Setting the Date and Time ............................ 3-2
Setting the Station ID ............................... 3-3
Setting the Beeper Volume Level ....................... 3-5
Storing the One-Touch Dial Numbers ................... 3-6
Storing the Speed-Dial Numbers ....................... 3-7
• When You Wish to Change the Stored One-Touch and
Speed-Dial Numbers (During Step 6 on Page 3-6, 8) ...... 3-9
• Memory Storage/Temporary Battery Back Up ........... 3-9
Setting Up Number Groups for Broadcasting ............. 3-9
• Types of Numbers ............................... 3-11
• Chain Dialing .................................. 3-11
4. USING THE UNIT AS A TELEPHONE ........ 4-1
Manual Dialing .................................... 4-1
One-Touch Dialing .................................. 4-1

MFC 4550/6550MC/7550MC
OP-US-5.0
TABLE OF CONTENTS
Speed Dialing ..................................... 4-1
• Using Hold, Pause, # with the Telephone .............. 4-1
• On Hook Dialing ................................. 4-2
Searching the Telephone Index ........................ 4-2
5. SENDING FAXES ......................... 5-1
A) DOCUMENT BASICS ............................ 5-1
The Size of Your Documents ........................ 5-1
How to Insert the Document ........................ 5-1
The Auto Document Feeder (ADF) ................... 5-2
Getting Ready to Send a Fax ....................... 5-3
Setting the Resolution .......................... 5-3
Setting the Contrast ........................... 5-4
B) BASIC FAX TRANSMISSIONS ..................... 5-5
• Sending a Fax ................................ 5-5
• Talking to the Other Party When Sending a Fax ...... 5-5
Sending a Fax Automatically ....................... 5-6
Sending a Fax Manually ........................... 5-6
Automatic and Manual Redialing .................... 5-7
• Optional Settings When You Send a Fax Manually ..... 5-7
• Printing Page Headers .......................... 5-7
C) ADVANCED FAX TRANSMISSIONS ................. 5-8
Sending a Fax by Using Super Quick-Scan
(Memory Transmission) ........................... 5-8
• If You Get a MEMORY FULL Message When Trying to
Send a Fax by Using Super Quick-Scan ............. 5-8
Setting the Daily Timer (for Delayed Transmissions) ..... 5-9
Delayed Transmission ............................ 5-10
Broadcasting .................................. 5-11
• Getting Familiar with the Broadcasting Function .... 5-11
Sending by Multiple Transmissions ................. 5-12
Interrupting the Timer and Polled Job ............... 5-14
Canceling a Job ................................ 5-15
D) FAX TRANSMISSION OPTIONS ................... 5-16
Setting the Overseas Mode ........................ 5-16
Setting Your MFC for Multiple Resolution
Transmission .................................. 5-17
Sending a Fax with an Electronic Cover Page Message ... 5-18
• Selecting a Comment for the Cover Page ........... 5-19

MFC 4550/6550MC/7550MC
OP-US-5.0
TABLE OF CONTENTS
Customizing Your Cover Page Comment .............. 5-19
Printing a Sample Cover Page ..................... 5-20
To Always Send a Cover Page ...................... 5-21
• Sending an Automatic Cover Page ................ 5-22
Sending a Fax When the Cover Page Is ON ........... 5-22
Sending a Cover Page Temporarily .................. 5-22
Sending a Fax with Call Reservation
(Talking to the receiving party after fax transmission) ... 5-24
• Using the Call Reservation Function .............. 5-24
Printing the Call Back Message .................... 5-26
ECM (Error Correction Mode) ...................... 5-26
Error Retransmission ............................ 5-26
Next-FAX Reservation ........................... 5-27
6. RECEIVING FAXES AND OTHER CALLS ..... 6-1
A) BASIC SETUP TO RECEIVE FAXES ................. 6-1
Selecting an Answer Mode ......................... 6-1
Manual Reception (Manual Mode) ................... 6-2
Automatic Fax Only Reception (Fax Mode) ............. 6-2
Setting the Ring Delay ............................ 6-2
The F/T Switch (Fax/Telephone Mode) ................ 6-3
Recording an F/T Outgoing Message (OGM)
(Only for MFC 6550MC/7550MC) .................... 6-4
Setting the F/T Ring Time ......................... 6-5
Smoothing ..................................... 6-6
Setting the Size of the Recording Paper ............... 6-7
Printing a Reduced Size Copy of the Incoming Document .. 6-8
Auto Reduction ............................... 6-8
Using Fixed Reduction Ratios .................... 6-8
• Selecting the Ratios of Fixed Reduction ............. 6-9
• Reception into Memory (Out of Paper Reception) ..... 6-10
Settign the Print Density ......................... 6-10
Toner Save Function ............................. 6-11
Speaker Volume ................................ 6-12
Ring Volume ................................... 6-13
B) REMOTE ACTIVATION .......................... 6-14
What is Remote Activation? ....................... 6-14
• Connecting an External or Extension Telephone ..... 6-14
Using Remote Codes ............................. 6-15

MFC 4550/6550MC/7550MC
OP-US-5.0
TABLE OF CONTENTS
Using the Activation Code ...................... 6-15
Using the Deactivation Code .................... 6-15
Making the Remote Codes Easier to Use .............. 6-16
Troubleshooting ................................ 6-16
Changing and Registering Remote Codes ............. 6-16
C) CONNECTING TO A TELEPHONE ANSWERING DEVICE
(TAD) ........................................ 6-17
How to Use an External TAD with the MFC ........... 6-17
• Connecting an External TAD to the MFC ........... 6-18
Flowchart of External TAD Reception ................ 6-19
Hookup....................................... 6-19
Recording the TAD’s Outgoing Message (OGM) ......... 6-20
D) DISTINCTIVE RINGING ......................... 6-20
Distinctive Ringing .............................. 6-20
What Is Distinctive Ringing? .................... 6-20
What Is the Advantage of Using the Distinctive Ringing
Function? .................................. 6-20
Can My MFC Use Distinctive Ringing? ............ 6-20
Can I Change the Setting Later? ................. 6-21
How Will the MFC Treat All Other Numbers? ....... 6-21
The Message Center Answers the Other Phone Number(s)
on the Line: (Only for MFC 6550MC/7550MC) ....... 6-21
External Telephone Answering Device (TAD) Answers
Other Number(s) on the Line: ................... 6-22
Retrieving Faxes from a Remote Site When Using
Distinctive Ringing: (Only for MFC 6550MC/7550MC) . 6-22
How Does the Distinctive Ringing Function Work? ... 6-22
Flowchart of an Incoming Call ................... 6-23
Which Phone Number Should I Register? ........... 6-25
What Must I Do to Set Up Distinctive Ringing? ...... 6-25
Setting the Distinctive Ringing Function ............. 6-25
How to Turn the Distinctive Ringing Function ON or OFF 6-27
E) CALLER ID ................................... 6-27
What is Caller ID? .............................. 6-27
Advantages of Caller ID .......................... 6-27
How Does Caller ID Work? ........................ 6-28
The Caller ID Appears on the Display When Your
Telephone Rings .............................. 6-28
The Caller ID is Stored in Your Machine’s Memory ... 6-28
Scanning through the Caller IDs Stored in the Memory .. 6-28

MFC 4550/6550MC/7550MC
OP-US-5.0
TABLE OF CONTENTS
• Clearing a Caller ID Stored in Memory ............ 6-29
Printing the Caller ID List ........................ 6-30
F) RECEIVE PASSWORD........................... 6-31
Turning Receive Password On or OFF ............... 6-31
7. POLLING................................ 7-1
• What Is Polling? ................................. 7-1
• How Does It Work? ............................... 7-1
• When to Use Polling .............................. 7-1
Polling Another Fax Machine (Calling) .................. 7-2
Setting Up Polled Waiting (Being Called) ................ 7-3
Delayed Polling .................................... 7-4
Setting Up Polled Waiting with Super Quick-Scan .......... 7-5
Sequential Polling .................................. 7-5
8. REMOTE FAX OPTIONS (Only for MFC 4550) . 8-1
Setting the Fax Storage .............................. 8-1
Paging/Fax Forwarding .............................. 8-3
Setting Up Paging (Registering the Paging Number) ........ 8-4
Setting Up Fax Forwarding (Registering the Fax
Forwarding Number) ................................ 8-6
What Is Remote Control Access? ....................... 8-6
Setting the Remote Access Code ....................... 8-7
How to Use Remote Access and Control Codes ............. 8-8
Remote Fax Retrieval ............................... 8-8
• When to Enter the Remote Access Code ............... 8-8
Remote Control Commands ........................... 8-9
Retrieving the Memory Status List and Fax Messages
Remotely ........................................ 8-10
Changing the Fax Forwarding Number Remotely ......... 8-10
Printing a Fax Message ............................. 8-11
9. MESSAGE CENTER MODE SETTINGS
(Only for MFC 6550MC/7550MC) ............. 9-1
A) GETTING STARTED ............................. 9-1
What Is the Message Center Mode? .................. 9-1
What Do I Want the Message Center to Do? ............ 9-1
Flowchart of an Incoming Call ...................... 9-3

MFC 4550/6550MC/7550MC
OP-US-5.0
Turning on the Message Center with 3 Basic Steps ....... 9-6
Setting the Message Storage ........................ 9-6
Recording the MSG CTR Outgoing Message
(MSG CTR OGM) ................................ 9-7
Activating the Message Center Mode ................. 9-8
B) GETTING YOUR MESSAGES ...................... 9-9
How Will I Know Messages Have Been Received? ........ 9-9
• What Happens When the Memory Is Full... .......... 9-9
Playing an Incoming Voice Message (ICM) and Recorded
Memo (or Voice Alarm) ........................... 9-10
Backup Printing Option .......................... 9-10
Printing a Fax Message .......................... 9-11
• Erasing and Printing FAX Messages .............. 9-12
Calling Your Message Center for Messages
(See Remote Retrieval) ........................... 9-12
C) ERASING YOUR MESSAGES ..................... 9-13
Erasing Incoming Voice Messages, Fax Messages and
Recorded Memo (or Voice Alarm).................... 9-13
One by One Erasing ........................... 9-13
All in One Erasing ............................ 9-13
D) CHANGING THE OUTGOING MESSAGE ........... 9-14
Playing Your Outgoing Message (OGM) .............. 9-14
Erasing Your Outgoing Message (OGM) .............. 9-15
E) MORE FEATURES.............................. 9-16
Setting the Toll Saver ............................ 9-16
Setting the Maximum Time for Incoming Messages
(ICM MAX. TIME) .............................. 9-17
Playing OGM (Outgoing Message) ON/OFF Setting ..... 9-18
Recording a Conversation ......................... 9-18
Recording a Memo .............................. 9-19
F) PAGING/FAX FORWARDING ..................... 9-20
What Is Paging/Fax Forwarding? ................... 9-20
Setting Up Paging (Registering the Paging Number) .... 9-21
Setting Up Fax Forwarding (Registering the Fax
Forwarding Number) ............................ 9-23
• Memory Backup of Message Center Memory ........ 9-23
Changing the Fax Forwarding Number Remotely ....... 9-24
G) REMOTE RETRIEVAL........................... 9-24
What Is Remote Control Access? .................... 9-24
Setting the Remote Access Code .................... 9-24
TABLE OF CONTENTS

MFC 4550/6550MC/7550MC
OP-US-5.0
Using the Remote Access Code ..................... 9-25
Remote Control Commands ....................... 9-26
Retrieving the Memory Status List and Fax Messages
Remotely ..................................... 9-27
Changing the Fax Forwarding Number Remotely ....... 9-27
H) VOICE ALARM ................................ 9-28
Voice Alarm ................................... 9-28
Setting the Voice Alarm .......................... 9-28
• Recording Voice Messages for the Voice Alarm ....... 9-29
How Will the Voice Alarm Perform When the Scheduled
Time Arrives… ................................. 9-30
Using the Voice Alarm: Playing Entries, Erasing Entries
One by One, Erasing All at Once .................... 9-31
Remote Control of the Voice Alarm .................. 9-32
10. USING THE MFC AS A PRINTER ............ 10-1
Acceptable Paper .................................. 10-1
Control Panel Keys ................................ 10-4
Simultaneous Operation ............................ 10-4
On/OffLine Key ................................... 10-4
FF/Cont Key ..................................... 10-4
Test/Reset Key.................................... 10-5
Print Priority Key ................................. 10-5
• Windows® Printing ............................. 10-6
• Remote Printer Console Program for DOS
(Only for MFC 6550MC/7550MC) ................... 10-6
• Popular Printer Emulation Support
(Only for MFC 6550MC/7550MC) ................... 10-6
• Bidirectional Parallel Interface ..................... 10-6
• Enhanced Memory Management ................... 10-6
Multipurpose Sheet Feeder .......................... 10-7
Manual Feed Slot ................................. 10-9
When you load one sheet of paper manually: ............. 10-9
When you load more than one sheet of paper manually: .... 10-9
• Paper Tray ................................... 10-10
Printing the Internal Font List
(Only for MFC 6550MC/7550MC) .....................10-11
Printing the Print Configuration List
(Only for MFC 6550MC/7550MC) .................... 10-12
TABLE OF CONTENTS

MFC 4550/6550MC/7550MC
OP-US-5.0
TABLE OF CONTENTS
Restoring to the Factory Default Settings
(Only for MFC 6550MC/7550MC) .................... 10-13
Printing PC Data in Hexadecimal
(Only for MFC 6550MC/7550MC) .................... 10-14
11. PRINTING REPORTS AND LISTS ...........11-1
How to Print Reports and Lists ....................... 11-2
Activity Report Interval ............................. 11-3
Printing the All Dial List ............................ 11-5
Transmission Verification (Xmit) Report ................ 11-6
Memory Status List ................................ 11-8
12. HOW TO USE THE COPY FUNCTION ........12-1
Making a Single Copy .............................. 12-1
Making Multiple Copies ............................ 12-2
Stacking Multiple Copies ............................ 12-2
• What to Do When You Get a “MEMORY FULL” Message
while Making Copies ............................ 12-3
Sorting Multiple Copies (Only for MFC 6550MC/7550MC)... 12-3
• What to Do When You Get a MEMORY FULL Message while
Sorting Multiple Copies (Only for MFC 6550MC/7550MC) 12-4
Reducing and Enlarging Copies ....................... 12-4
Copying a Photograph .............................. 12-6
13. REPLACING TONER CARTRIDGE AND DRUM
UNIT.................................... 13-1
Toner Empty Indicator ............................. 13-1
Replacing the Toner Cartridge ........................ 13-1
Replacing the Drum Unit ........................... 13-5
14. REGULAR MAINTENANCE.................14-1
Regular Maintenance .............................. 14-1
Cleaning the Drum Unit ............................ 14-2
Packing and Shipping the Machine .................... 14-3
Paper Jams ...................................... 14-6
Fixing a Document Jam .......................... 14-6
Fixing a Recording Paper Jam ..................... 14-6

MFC 4550/6550MC/7550MC
OP-US-5.0
TABLE OF CONTENTS
15. OPTIONAL ACCESSORIES ................. 15-1
Connecting the Serial Interface Board (RS100M)
(Only for MFC 6550MC/7550MC) ..................... 15-1
Setting the Serial Interface Parameters
(Only for MFC 6550MC/7550MC) ..................... 15-3
Memory Board.................................... 15-6
Optional Memory for the Printer & Fax Operations ..... 15-6
Installing the Optional Memory Board ................. 15-7
16. TROUBLESHOOTING PROCEDURES........16-1
Error Messages ................................... 16-2
Other Problems ................................... 16-5
Q & A ...........................................16-11
17. SPECIFICATIONS ........................17-1
PARALLEL INTERFACE SPECIFICATIONS.......... 17-3
RESIDENT FONTS (Only for 6550MC/7550MC) ....... 17-3
SYMBOL SETS/CHARACTER SETS
(Only for 6550MC/7550MC) ....................... 17-4
18. IMPORTANT INFORMATION ...............18-1
Standard Telephone and FCC Notices
(Applies only to 120V model) ......................... 18-1
Important Safety Instructions ........................ 18-3
19. INDEX ..................................19-1

THE CONTROL PANEL KEYS
1-1
Information
MFC 4550/6550MC/7550MC
OP-US-5.0
One-Touch, Printer and Copy Area
A
Telephone Area
B
LCD & User Setting Area
C
Line
On/Off
FF/Cont
Print
Priority
Test/
Copy
Photo
Reset
01 02 03
13 14 15
07 08 09
19 20 21
10 11 12
22 23 24
04 05 06
16 17 18
Reduce
Enlarge
Function Clear Tel-indexSet Help
Super
Q.Scan
Resolution Mode Coverpage
Stop
Start
Shift
Hook
Hold
Speed Dial
1
4
7
56
23
89
0
ABC DEF
GHI JKL MNO
PQRS TUV WXYZ
MFC 4550
Fine
Photo
S.Fine
FAX PRINTER COPIER SCANNER PC FAX
Redial/ Pause
Fax
TAD
F/T
status
status
1. THE CONTROL PANEL KEYS
MFC 4550
MFC 7550MC (MFC 6550MC panel keys are same as 7550MC)
One-Touch, Printer and Copy Area
A
Telephone Area
B
LCD & User Setting Area
C
Message Center Area
D
Line
On/Off
FF/Cont
Print
Priority
Test/
Copy
Photo
Reset
01 02 03
13 14 15
07 08 09
19 20 21
10 11 12
22 23 24
04 05 06
16 17 18
Reduce
Enlarge/
Sort
Function Clear Tel-indexSet Help
Super
Q.Scan
Resolution Mode Coverpage
Stop
Start
Shift
Hook
Hold
Speed Dial
1
4
7
56
23
89
0
ABC DEF
GHI JKL MNO
PQRS TUV WXYZ
status
status
Redial/ Pause
Record Erase
Speaker HL
Play
MFC 7550MC
FAX PRINTER COPIER SCANNER PC FAX MESSAGE CENTER
SIX IN ONE
Fine
Photo
S.Fine
Fax
F/T
Voice
Fax
status

1-2
THE CONTROL PANEL KEYS
MFC 4550/6550MC/7550MC
OP-US-5.0
MFC 7550MC
01 02
13 14
07 08
19 20
10 11
22 23
04 05
16 17
Function Clear Tel-indexSet
Shift
Hook
Hold
Speed Dial
1
4
7
56
23
89
0
ABC DEF
GH I JKL MNO
PQRS TUV WXYZ
Redial/ Pause
MFC 7550MC
Voice
Fax
statu
s
status
status
a
a TELEPHONE AREA
1. Number Keys
These twelve keys are used to
dial phone and fax numbers (see
page 4-1), and also can be used as
an alphanumeric keyboard for
entering information into the
machine. (See page 2-10~12.)
2. Hook
This key lets you dial telephone
and fax numbers without lifting
the handset. (See page 4-1, 2.)
3. Hold
You can use this key to put a call
on hold. (See page 4-1.)
5. Speed-Dial
This key lets you dial previously
stored Speed-Dial phone
numbers by entering a two-digit
number. (See page 3-7~9, 4-1.)
6. Tel-index
This key allows you to
alphabetically look up numbers
stored in the dialing memory.
(See page 4-2.)
4. Redial/Pause
This key redials the last number
called.(See page5-7.) This keyis
also used to insert a pause in
autodial numbers. (See page 3-7,
4-1.)

THE CONTROL PANEL KEYS
1-3
Information
MFC 4550/6550MC/7550MC
OP-US-5.0
Line
On/Off
FF/Cont
Print
Priority
Test/
Copy
Photo
Reset
01 02 03
13 14 15
07 08 09
19 20 21
10 11 12
22 23 24
04 05 06
16 17 18
Reduce
Enlarge/
Sort
Stop
Start
Shift
Record Erase Play
Speaker HL
b ONE-TOUCH, PRINTER AND COPY AREA
7. Shift
This key is used to access the “13”
through “24” One -Touch keys. (See
page 3-6.) In the printer mode when
Shift is pressed together with
Reset, it resets and restores the
MFCto the factory default settings.
8. One-Touch Dial Keys
These 12 keys give you instant
access to previously stored phone
numbers.
(See page 3-6~7, 4-1.)
9. Enlarge/Reduce
(The MFC 4550 has separate keys
for Enlarge and Reduce.) This
Enlarge/Reduce key will reduce
or enlarge copies depending on the
ratio you select: 200%, 150%, 125%,
120%, 100%, 93%, 87%, 75%, and
50%. You can also use the Auto
Reduction function to have the
machine automatically calculate
the reduction ratio that fits the
size of your recording paper. (See
page 12-4~5.)
10. Copy
Press this key to make a
copy. (See page 12-1~6.)
MFC 7550MC
b
11. Sort
(Only for 6550MC/7550MC)
This key is used to copy original
multiple pages copied in order.
(See page 12-3.)
12. Photo
This key is used to copy
photographs. (See page 12-6.)

1-4
THE CONTROL PANEL KEYS
MFC 4550/6550MC/7550MC
OP-US-5.0
Line
On/Off
FF/Cont
Print
Priority
Test/
Copy
Photo
Reset
01 02 03
13 14 15
07 08 09
19 20 21
10 11 12
22 23 24
04 05 06
16 17 18
Reduce
Enlarge/
Sort
Stop
Start
Shift
Record Erase Play
Speaker HL
MFC 7550MC
b ONE-TOUCH, PRINTER AND COPY AREA
13. On/OffLine
This key is used to turn the
printer online (ready to receive
PC data) and offline (not ready to
receive PC data) alternately.
When the printer is online, the
LCD displays ONLINE. (See
page 10-4.)
16. FF/Cont
When the LCD shows
REMAINED DATA, you
can press this key to print
the data that is in the
memory. Also, it clears
some operation and
machine errors. (See page
10-4~5.)
14. Stop
This key stops a fax, cancels an
operation, or exits from function
mode. (See page 2-2.)
15. Start
Usethis keyto start an operation,
such as sending a fax. (See page
5-5.)
b
17. Test/Reset
This key is used to print a test page. When it is pressed
together with Shift, it clears data from the printer
memory, cancels an error status, and then resets and
restoresto the factory default settings. (See page 10-5.)
18. Print Priority
When this key is pressed all faxes will be received into memory without first
printing and can be printed later. This key also increases the memory available
for printing without decreasing memory available for memory transmission and
incoming messages. (See page 10-5.)

THE CONTROL PANEL KEYS
1-5
Information
MFC 4550/6550MC/7550MC
OP-US-5.0
24. Function
This key accesses the function and
programming mode (OSP), so you
can alter various settings. (See
page2-1.)
23. Set
This key is used for storing a
function setting into the machine.
(See page 2-2.)
20. X (Right Arrow)
This key moves the LCD cursor to
the right, and it also lets you
advance one step when you are in
function mode (see page 2-1) or
Telephone Index (see page 4-2).
19. Z (Left Arrow)
This key moves the LCD cursor to
the left. It also allows you to back
up one step when you are in
function mode (see page 2-1) or
Telephone Index (see page 4-2).
Function Clear Tel
-
Set
MFC 7550MC
V
o
status
status
MFC 7550MC
c LCD & USER SETUP AREA
21. Liquid Crystal Display
The LCD displays messages that
will help you set up and operate
your machine (On-Screen
Programming), the upper row
shows fax and copy status and the
lower row shows printer and
scanner status. (See page 2-1.)
22. Clear
This key deletes entered data
or backs up one step in function
mode. (See page 2-2.)
c

1-6
THE CONTROL PANEL KEYS
MFC 4550/6550MC/7550MC
OP-US-5.0
26. Super Q.Scan
This key enables you to scan in your
originals at twice the normal speed, by
storing them in the memory before actual
transmission. (See page 5-8.) When it is
pressed, Broadcasting is available. (See
page 5-11~12.) When Super Q.Scan is
pressed together with Shift, Multi
Transmission is available. (See page
5-12~13.)
Also, you can gradually decrease the speaker
volume for the current call by pressing this
key (Only for MFC 6550MC/7550MC).
29. Help
Press this key whenever you want a quick
reference Help List printed. This Help List
will give you information on how to perform
settings for a function, how to register
information,or how to get basicinformation.
(Seepage 2-1, 2-9.)
Also, you can gradually increase the speaker
volume for the current call by pressing this
key (Only for MFC 6550MC/7550MC).
Help
Super
Q.Scan
Resolution Mode Coverpage
FAX PRINTER COPIER SCANNER PC FAX MESSAGE CENTER
SIX IN ONE
Fine
Photo
S.Fine
Fax
F/T
Fax
status
Speaker HL
MFC 7550MC
c LCD & USER SETUP AREA
25. Mode
Thiskeyisused tospecify
how the machine should
handle incoming calls.
(See page 6-1.)
28. Coverpage
This key is used to send a
Cover Page as the first
pageof a faxtransmission.
(See page 5-22~23.)
c
27. Resolution
This key is used to
set the resolution
requirements when
sending a fax. (See
page5-3.)

THE CONTROL PANEL KEYS
1-7
Information
MFC 4550/6550MC/7550MC
OP-US-5.0
Line
On/Off
Photo
01 02 03
13 14 15
04 05 06
Tel-index Help
Super
Q.Scan
Resolution Mode Coverpage
Record Erase Play
FAX PRINTER COPIER SCANNER PC FAX MESSAGE CENTER
SIX IN ONE
Fine
Photo
S.Fine
Fax
F/T
Voice
Fax
status
Speaker HL
MFC 7550MC
33. Play
Use this key to listen to
incoming voice messages,
outgoing voice messages,
memos and voice alarm
messages stored in your MFC.
(See page 9-10, 13, 14, 31.)
32. Erase
This key erases voice or fax
messages stored in your fax
machine. (See page 9-13, 15, 31.)
31. Record
Use this key to record outgoing
voice messages, memo and voice
alarm messages into your MFC.
(See page 9-8, 19, 28~29.)
30. Voice and Fax
Indicator Lights
These lights tell you whether voice
or document messages are stored in
the memory. (See page 9-9.)
d MESSAGE CENTER AREA
(Only for MFC 6550MC/7550MC)
d
d

2-1
HOWTOUSEON-SCREENPROGRAMMING(OSP)ANDHELPKEY
MFC 4550/6550MC/7550MC
OP-US-5.0
Press Function
Press2.
FAX MENU PRINTER MENU
(Only for MFC
6550MC/7550MC)
Press1.
2. HOWTOUSEON-SCREENPROGRAMMING(OSP)ANDHELPKEY
User-friendly Programming
We have designed your MFC with on-screen programming and a Help key, user-
friendly programming that helps you take full advantage of all the functions your
machine has to offer.
Since your MFC programming is done on the LCD, we created step-by-step on-screen
prompt messages to help you program your machine. All you have to do is follow the
prompt instructions as they guide you through the function menu selections and
programming options and settings.
Using the Function Mode to Access On-screen Programming (OSP)
ENTER NO. & SET
1.FAX
2.PRINTER
1.TEMP.SETTINGS
2.CANCEL JOB
3.PRINT REPORTS
4.SET AUTO DIAL
5.USER OPTIONS
6.TEL OPTIONS
7.SETUP SYSTEM
8.SETUP MSG CTR
1.PRINT OPTIONS
2.RESET PRINTER
* MFC 4550 does not display “2.PRINTER”.
NOTE: When you are using the MFC as a
printer, you can not access the Printer
Menu functions.
0.INTERRUPT
(In model MFC 4550, Function 8 indicates
REMOTE FAX OPT instead of SETUP MSG
CTR.)
*