Brother MFC 8420 User Manual

							1 - 5   INTRODUCTION
■Inside view (Document cover open) 
No.Name Description
21Document Guidelines Use to center the original on the scanner glass.
22Glass Strip This is used to scan the original when using the 
ADF.
23Scanner  Lock  Lever Use to lock/unlock the scanner when relocating the 
MF C .
24Document Cover Open to place the original on the scanner glass.
25White Film Clean it for good quality copying and scanning.
26Scanner Glass Place the original to be scanned here.
25 White Film 24 Document Cover
21 Document 
Guidelines22 Glass Strip
26 Scanner Glass23 Scanner Lock Lever
 
						

							INTRODUCTION   1 - 6
Control panel overview
MFC-8420, MFC-8820D and MFC-8820DN have similar control 
panel keys.
6
12
7
4
1
3
9
5
8
10
11
2
 
						

							1 - 7   INTRODUCTION
1
67
4235
1 Shift
To access memory locations 21 
through 40 in the One-Touch keys 
hold down the Shift key.
2 One-Touch keys
These 20 keys give you instant 
access to 40 previously stored dial 
numbers.
3 Print keys:
Secure
Lets you print out data saved in 
memory by entering your four-digit 
password.
Job cancel
Clears data from the printer 
memory.
4  Status LED
(Light-Emitting Diode)
The LED will flash and change color 
depending on the MFC status.
5 5-Line Liquid Crystal Display 
(LCD)
Displays messages on the  screen to 
help you to set up and use your 
MFC.
 
						

							INTRODUCTION   1 - 8
6 Mode keys:
 Fax
Lets you access Fax mode.
 Copy
Lets you access Copy mode.
 Scan
Lets you access Scan mode.
7 Fax and telephone keys:
Hook
Press before dialing if you want to 
make sure a fax machine will 
answer, and then press Start.
Resolution
Sets the resolution when you send a 
fax.
Search/Speed Dial
Lets you look up numbers that are 
stored  in the dialing memory. It  also 
lets you dial stored numbers by 
pressing 
# and a three-digit 
number.
Redial/Pause
Redials the last number you called. 
It also inserts a pause in auto dial 
numbers.
 
						

							1 - 9   INTRODUCTION
12
981011
8 Navigation keys:
Menu
Lets you access the Menu to 
program.
Set
Lets you store your settings in the 
MFC.
Clear/Back
Deletes entered data or lets you exit 
the menu by pressing repeatedly. or 
Press to scroll forward or backward 
to a menu selection.
When using  the speaker  or ring,  you 
can press these keys to adjust the 
volume in fax mode.
 or 
Press to scroll through the menus 
and options.
Also, you can use these keys to do 
a numerial search for the names of 
stored numbers in fax mode.
 
						

							INTRODUCTION   1 - 10
9 Copy keys
(Temporary settings):
Enlarge/Reduce
Lets you reduce or enlarge copies 
depending upon the ratio you 
select.
Contrast
Lets you make a copy that is lighter 
or darker than the original.
Quality
Lets you select the copy quality for 
your type of original.
Tray Select
You can select which tray you would 
like to use for the next copy.
Sort
Lets you sort multiple copies using 
the ADF.
N in 1 (For MFC-8420)
N in 1 lets you copy 2 or 4 pages 
onto one page.
Duplex/N in 1 (For MFC-8820D and 
MFC-8820DN)
You can choose Duplex to copy on 
both sides of the paper or N in 1 to 
copy 2 or 4 pages onto one page.0 Dial Pad
Use these keys to dial telephone 
and fax numbers and as a keyboard 
for entering information into the 
MFC.
The # key lets you temporarily 
switch the dialing mode during a 
telephone call from Pulse to Tone.
A Stop/Exit
Stops a fax, copy and scan 
operation or exits from the menu.
B Start
Lets you start sending faxes, 
making copies or scanning.
 
						

							1 - 11   INTRODUCTION
Status LED indications
The  St atu s LED (Light Emitting Diode) will flash and change color 
depending on the MFC status.
The LED indications shown in the table below are used in the 
illustrations in this chapter.
LED LED status
LED is off.
Green Yellow RedLED is on.
Green Yellow RedLED is blinking.
LED MFC status Description
Sleep Mode The power switch is off or the MFC is in Sleep 
mode.
GreenWarming Up The MFC is warming up for printing.
GreenReady The MFC is ready to print.
YellowReceiving Data The MFC is either receiving data from the 
computer, processing data in memory or 
printing data.
YellowData Remaining in 
MemoryPrint data remains in the MFC memory.
 
						

							INTRODUCTION   1 - 12 RedService error Follow the steps below.
1.  Turn off the power switch.
2.  Wait a few  seconds, and  then turn it  back on 
and try to print again.
If you cannot clear the error and see the same 
service call indication after turning the MFC 
back on, please call Brother Customer Service 
at: 1-800-284-4329 (in USA) or 
1-877-BROTHER (in Canada).
RedCover open The cover is open. Close the cover. (See Error 
messages on page 22-1.)
Toner empty Replace the toner cartridge with a new one. 
(See Replacing the toner cartridge on page 
22-28.)
Paper error Put paper in the tray or clear the paper jam. 
Check the LCD message. ( See Troubleshooting 
on page 22-1.)
Scan lock Check that the scanner lock lever is released. 
(See Scanner Lock Lever on page 1-5.)
Others Check the LCD message. ( See Troubleshooting 
on page 22-1.)
Out of memory Memory is full. (See Error messages on page 
22-1.)
When the power switch is off or the MFC is in Sleep mode, the 
LED is off.
LED MFC status Description
 
						

							1 - 13   INTRODUCTION
About fax machines
Custom features
Do you have Voice Mail on the phone line?
If you have Voice Mail on the phone line where you will install your 
new MFC, there is a strong possibility that Voice Mail and the MFC 
may conflict with each other while receiving incoming calls.
Why should there be problems?
Since both the MFC and Voice Mail will pick up the call, after the 
number of rings you have set, each of them has the ability to keep 
the other from receiving calls.
For example, if your Voice Mail is set to answer af ter two rings and 
your MFC is set to answer after four, your Voice Mail will stop your 
MFC from receiving faxes.
If you set Voice Mail and t he Brother MFC to answer after the same 
number of rings,  there is no way of knowing which one will answer 
first. It is important to remember that neither Voice Mail nor the MFC 
can pass the call back to the other after the call has been answered.
How ca n you a void poss ible pr oblems ?
A very good way to avoid problems like the one mentioned, is to get 
a second phone number on your present  phone line.
Many people with Voice Mail choose an alternative service, which is 
called “Distinctive Ring”, and they are very satisfied with it. (See 
Distinctive Ring on page 5-11.)
Another way to avoid possible problems is to replace your Voice Mail 
with an answering machine. Your Brother MFC is designed to work 
with an answering machine or TAD (telephone answering device).
(See Connecting an external telephone answering device (TAD) on 
page 1-16.)
 
						

							INTRODUCTION   1 - 14
Fax tones and handshake
When someone is sending a f ax, the MFC sends fax calling tones 
(CNG tones).  These are quiet, intermit tent beeps every 4-seconds.  
You’ll hear them after you dial and press 
Start and they will cont inue 
for about 60 seconds after dialing. During that time, the sending 
machine must begin the “handshake”, or connection, with the 
receiving machine.
Each time you use aut omatic procedures to send a fax, you are 
sending CNG tones over the phone line. You’ll soon learn to listen for 
these quiet beeps each time you answer a phone on your f ax line, so 
you will know if you are receiving a f ax message.
The receiving fax responds with fax receiving tones, which are loud, 
chirping sounds. A receiving fax chirps for about 40 seconds over the 
phone line, and t he LCD shows Receiving. 
If your MFC is set to the Fax Only mode, it will answer every call 
automat ically with fax receiving tones. If the ot her person hangs up, 
your MFC will continue t o send the “chirps” for about 40 seconds, 
and the LCD continues to show Receiving. To cancel receiving, 
press 
Stop/Exit.
The fax ‘handshake’ is the time in which the sending machine’s CNG 
tones and the receiving machines “chirps” overlap. This must be for 
at least 2 to 4 seconds, so both machines can understand how each 
is sending and receiving the fax. The handshake cannot begin until 
the call is answered, and the CNG  tones only last for about 60 
seconds after the number is dialed. So it is important for the receiving 
machine to answer the call in as few rings as possible.
When you have an external Telephone Answering Device (TAD) 
on your fax line, your TAD will decide the number of rings before 
t he call is answered.
Pay special attention to the directions for connecting a TAD in 
t his chapter. (See Connecting an ext ernal telephone answering 
device (TAD) on page 1-16.)