Brother Mfc 8370dn User Manual

150
Replacing a toner cartridgeC
The High Yield toner cartridges can print 
approximately 8,000 pages
1 and the 
Standard toner cartridges can print 
approximately 3,000 pages
1. Actual page 
count will vary depending on your average 
type of document (i.e., standard letter, 
detailed graphics). The machine is supplied 
with the Starter toner cartridge that will need 
to be replaced after approximately 2,000 
pages. When a toner cartridge is running low, 
the LCD shows Toner Low.
1Approx. cartridge yield...

Troubleshooting and routine maintenance
151
C
cPush down the blue lock lever and take 
the used toner cartridge out of the drum 
unit.
 
WARNING 
DO NOT put a toner cartridge into a fire. It 
could explode, resulting in injuries.
 
IMPORTANT
• Handle the toner cartridge carefully. If 
toner scatters on your hands or clothes, 
wipe or wash it off with cold water at once.
• To avoid print quality problems, DO NOT 
touch the shaded parts shown in the 
illustrations.
 
• Brother machines are designed to work...

152
fPut the new toner cartridge firmly into 
the drum unit until you hear it lock into 
place. If you put it in correctly, the lock 
lever will lift automatically.
 
Note
Make sure that you put in the toner 
cartridge correctly or it may separate from 
the drum unit.
 
gClean the corona wire of the drum unit 
by gently sliding the blue tab from right 
to left and left to right several times.
 
Note
Be sure to return the blue tab to the home 
position (a) (1). If you do not, printed 
pages may have a...

Troubleshooting and routine maintenance
153
C
Replacing the drum unitC
The machine uses a drum unit to create print 
images on paper. If the LCD shows 
Replace Drum, the drum unit is near the 
end of its life and it is time to buy a new one. 
Even if the LCD shows Replace Drum, you 
may be able to continue printing without 
having to replace the drum unit for a while. 
However, if there is a noticeable deterioration 
in the output print quality (even before 
Replace Drum appears), then the drum unit...

154
IMPORTANT
• We recommend that you put the drum unit 
and toner cartridge assembly on a clean, 
flat surface with a sheet of disposable 
paper or cloth underneath it in case you 
accidentally spill or scatter toner.
• To prevent damage to the machine 
caused by static electricity, DO NOT touch 
the electrodes shown in the illustration.
 
 
cPush down the blue lock lever and take 
the toner cartridge out of the drum unit.
IMPORTANT
• To avoid print quality problems, DO NOT 
touch the shaded parts shown...

Troubleshooting and routine maintenance
155
C
Replacing periodic 
maintenance parts
C
The periodic maintenance parts will need to 
be replaced regularly to maintain the print 
quality. The parts listed below will have to be 
replaced after printing approximately 50,000 
pages for PF Kit MP and 100,000 pages for 
PF Kit 1, PF Kit 2, Fuser and Laser. Please 
call your Brother dealer when the following 
messages appear on the LCD.
Machine InformationC
Checking the Serial NumberC
You can see the machine’s...

156
ResetC
The following reset functions are available:
1Network
You can reset the print server back to its 
default factory settings such as the 
password and IP address information.
2Address & Fax
Address & Fax resets the following 
settings:
„Address Book
(One-Touch Dial, Speed-Dial and 
Setup Groups)
„Programmed fax jobs in the memory
(Polled Transmit, Delayed Polling, 
Secure Polling, Delayed Fax and 
Delayed Batch)
„Station ID (Name and Number)
„Coverpage Msg (Comments)
„Remote Fax Options
(Remote...

Troubleshooting and routine maintenance
157
C
Packing and shipping 
the machine
C
CAUTION 
Make sure that the machine has fully 
cooled down by leaving it disconnected 
from the power for at least 30 minutes 
before packing.
 
When you transport the machine, use the 
packing materials that came with your 
machine. If you do not pack the machine 
correctly, you could void your warranty.
aTurn off the machine.
bUnplug the machine from the telephone 
wall socket.
cUnplug all the cables and AC power 
cord...

158
iTake the two styrofoam pieces and 
match the front of the machine to the 
“FRONT” mark on one of the styrofoam 
pieces, and the back of the machine to 
the “REAR” mark on the other styrofoam 
piece (5). Coil the cables and place 
them and the Quick Setup Guide in the 
spaces provided as shown below (6).
 
jClose the carton and tape it shut.
 

159
D
D
On-screen 
programming
D
Your machine has been designed to be easy 
to use. The LCD provides on-screen 
programming using the menu keys.
We have created step by step on-screen 
instructions to help you program your 
machine. Simply follow the steps as they 
guide you through the menu selections and 
programming options.
Menu tableD
You can program your machine by using the 
Menu table on page 161. These pages list 
the menu selections and options.
Press Menu followed by the menu numbers 
to...