Brother MFC 8460N User Manual

							Troubleshooting and routine maintenance
127
Clean the outside of the machine as 
follows:
C
aPull the paper tray completely out of the 
machine.
 
bWipe the outside of the machine with a 
soft cloth to remove dust.
 
cRemove anything that is stuck inside the 
paper tray.
dWipe the inside of the paper tray with a 
soft cloth to remove dust.
 
eRe-load the paper and put the paper tray 
firmly back in the machine.
 
						

							128
Cleaning the scanner glassC
aTurn off the machine’s power switch.
bLift the document cover (1).
Clean the white plastic surface (2) and 
scanner glass (3) underneath it with 
isopropyl alcohol on a soft lint-free cloth.
 
cIn the ADF unit, clean the white plastic 
bar (1) and the scanner glass strip (2) 
under it with isopropyl alcohol on a lint-
free cloth.
 
Cleaning the laser scanner 
windowC
CAUTION 
DO NOT use isopropyl alcohol to clean the 
laser scanner window.
  
DO NOT touch the laser scanner window 
with your fingers.
 
aTurn off the machine’s power switch. 
Unplug the telephone line cord first, and 
then unplug the power cord from the AC 
power outlet.
bOpen the front cover and take out the 
drum unit and toner cartridge assembly.
 
1
3
2
1
2
 
						

							Troubleshooting and routine maintenance
129
HOT SURFACE 
After you have just used the machine, some 
internal parts of the machine will be 
extremely hot. When you open the front 
cover of the machine, DO NOT touch the 
shaded parts shown in the illustration.
 
 
CAUTION 
To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
cGently clean the laser scanner window 
(1) by wiping it with a clean soft, dry lint-
free cloth. Do not use isopropyl alcohol.
 
dPut the drum unit and toner cartridge 
assembly back into the machine.
 
eClose the front cover.
fPlug the machine’s power cord back into 
the AC power outlet first, and then plug 
in the telephone line cord.
Turn on the machine’s power switch.
1
 
						

							130
Cleaning the corona wireC
We recommend that you put the drum unit 
and toner cartridge assembly on a piece of 
disposable paper or cloth in case you 
accidentally spill or scatter toner.
aOpen the front cover and take out the 
drum unit and toner cartridge assembly.
 
bClean the primary corona wire inside the 
drum unit by gently sliding the blue tab 
from right to left and left to right several 
times.
 
cReturn the blue tab and snap it into the 
home position (b).
CAUTION 
If you do not return the blue tab to the home 
position (b), your printed pages may have 
vertical black stripes on them.
 
dPut the drum unit and toner cartridge 
assembly back in the machine.
eClose the front cover.
 
						

							Troubleshooting and routine maintenance
131
Cleaning the drum unitC
aTake out the drum unit and toner 
cartridge assembly, and then take out 
the toner cartridge from the drum unit.
bPut the print sample in front of the drum 
unit, and find the exact position of the 
poor print.
 
cTurn the white gear on the drum as you 
check the surface of the OPC drum (1).
 
dWhen you have found the mark on the 
drum that matches the print sample, 
wipe the surface of the OPC drum with a 
dry cotton swab until the dust or glue on 
the surface comes off.
 
CAUTION 
The OPC drum is photosensitive so do not 
touch it with your fingers.
  Do not use a scrubbing or wiping motion 
because this might damage the drum.
  DO NOT clean the surface of the OPC 
drum with a sharp object, such as a ball-
point pen, because this might cause 
permanent damage to the drum unit.
 
1
 
						

							132
Replacing the toner cartridge 
(TN-550/TN-580)C
The TN-580 toner cartridge can print 
approximately 7,000 pages using a high yield 
toner cartridge. When the toner cartridge is 
running low, the LCD shows Toner Low. 
The machine is supplied with a standard TN-
550 toner cartridge that must be replaced 
after approximately 3,500 pages. Actual page 
count will vary depending on your average 
type of document (i.e., standard letter, 
detailed graphics).
Note
It is a good idea to keep a new toner 
cartridge ready for use when you see the 
Toner Low warning.
 
Discard the used toner cartridge according to 
local regulations, keeping it separate from 
domestic waste. Be sure to seal up the toner 
cartridge tightly so that toner powder does not 
spill out of the cartridge. If you have 
questions, call your local waste disposal 
office. 
We recommend that you clean the machine 
and corona wire of the drum unit when you 
replace the toner cartridge. (See Cleaning the 
laser scanner window on page 128 and 
Cleaning the corona wire on page 130.)
Replacing the toner cartridgeC
HOT SURFACE 
After you have just used the machine, some 
internal parts of the machine will be 
extremely hot. When you open the front or 
back cover of the machine, DO NOT touch 
the shaded parts shown in the illustration.
 
 
aOpen the front cover and take out the 
drum unit and toner cartridge assembly. 
 
 
						

							Troubleshooting and routine maintenance
133
CAUTION 
To prevent damage to the machine from 
static electricity, DO NOT touch the 
electrodes shown in the illustration.
 
 
bHold down the lock lever on the right and 
take the toner cartridge out of the drum 
unit.
 
WARNING 
DO NOT put a toner cartridge into a fire. It 
could explode, resulting in injuries.
 
CAUTION 
Put the drum unit on a drop cloth or large 
piece of disposable paper to avoid spilling 
and scattering the toner.
  Handle the toner cartridge carefully. If toner 
scatters on your hands or clothes, wipe or 
wash it off with cold water at once.
 
CAUTION 
Brother strongly recommends that you do 
not refill the toner cartridge provided with 
your machine. We also strongly 
recommend that you continue to use only 
Genuine Brother Brand replacement toner 
cartridges (TN-550/TN-580). Use or 
attempted use of potentially incompatible 
toner and/or cartridges in the Brother 
machine may cause damage to the 
machine and/or may result in unsatisfactory 
print quality. Our warranty coverage does 
not apply to any problem that is caused by 
the use of unauthorized third party toner 
and/or cartridges. To protect your 
investment and obtain premium 
performance from the Brother machine, we 
strongly recommend the use of Genuine 
Brother Supplies.
  Wait to unpack the toner cartridge until 
immediately before you put it in the 
machine. If a toner cartridge is left 
unpacked for a long time, the toner life will 
be shortened.
    
DO NOT touch the shaded parts shown in 
the illustrations to prevent any degradation 
to the print quality.
 
 
						

							134
cUnpack the new toner cartridge. Put the 
used toner cartridge into the aluminum 
bag and discard it according to local 
regulations.
dGently rock the toner cartridge from side 
to side five or six times to spread the 
toner evenly inside the cartridge.
 
ePull off the protective cover.  
fPut the new toner cartridge firmly into 
the drum unit until you hear it lock into 
place. If you put it in properly, the lock 
lever will lift automatically.
 
gClean the primary corona wire inside the 
drum unit by gently sliding the blue tab 
from left to right and right to left several 
times. Be sure to return the blue tab to 
the home position (b).
hPut the drum unit and toner cartridge 
assembly back in the machine.
iClose the front cover.
 
						

							Troubleshooting and routine maintenance
135
Replacing the drum unit 
(DR-520)C
The machine uses a drum unit to create print 
images on paper. If the LCD shows 
Drum Near End, the drum unit is near the 
end of its life and it is time to buy a new one.
Even if the LCD shows Drum Near End, 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 
Drum Near End appears), then the drum 
unit should be replaced. You should clean the 
machine when you replace the drum unit. 
(See Cleaning the laser scanner window on 
page 128.)
CAUTION 
While removing the drum unit, handle it 
carefully because it may contain toner. If 
toner scatters on your hands or clothes, 
wipe or wash it off with cold water at once.
 
Note
The drum unit is a consumable item, and 
it is necessary to replace it periodically. 
There are many factors that determine the 
actual drum life, such as temperature, 
humidity, type of paper and how much 
toner you use for the number of pages per 
print job. The estimated drum life is 
approximately 25,000 pages. The actual 
number of pages your drum will print may 
be significantly less than these estimates. 
Because we have no control over the 
many factors that determine the actual 
drum life, we cannot guarantee a 
minimum number of pages that will be 
printed by your drum.
 
HOT SURFACE 
After you have just used the machine, some 
internal parts of the machine will be 
extremely hot. When you open the front or 
back cover of the machine, DO NOT touch 
the shaded parts shown in the illustration.
 
 
aOpen the front cover and take out the 
drum unit and toner cartridge assembly. 
 
 
						

							136
CAUTION 
To prevent damage to the printer from static 
electricity, DO NOT touch the electrodes 
shown in the illustration.
 
 
bHold down the lock lever on the right and 
take the toner cartridge out of the drum 
unit.
 
Note
Discard the used drum unit according to 
local regulations, keeping it separate from 
domestic waste. Be sure to seal up the 
drum unit tightly so that toner powder does 
not spill out of the unit. If you have 
questions, call your local waste disposal 
office.
 
CAUTION 
Wait to unpack a new drum unit until 
immediately before installing it. Put the old 
drum unit into the plastic bag.
 
cUnpack the new drum unit.
dPut the toner cartridge firmly into the 
new drum unit until you hear it lock into 
place. If you put it in properly, the lock 
lever will lift automatically.
 
ePut the drum unit and toner cartridge 
assembly back in the machine.
Do not close the front cover.
fPress Clear/Back. 
Replace Drum?
a1.Yes
b2.No
Select ab
 & OK
To confirm you are installing a new 
drum, press 1.
gWhen the LCD shows Accepted, close 
the front cover.
CAUTION 
If toner scatters on your hands or clothes, 
wipe or wash it off with cold water at once.