Brother MFC 440CN User Manual

Troubleshooting and Routine Maintenance145
Note
If the LCD shows No Cartridge after 
you install the ink cartridges, check that 
the ink cartridges are installed properly.
 
WARNING 
If ink gets in your eyes, wash them out with 
water at once and call a doctor if you are 
concerned.
 
CAUTION 
DO NOT take out ink cartridges if you do 
not need to replace them. If you do so, it 
may reduce the ink quantity and the 
machine will not know the quantity of ink left 
in the cartridge.
  
DO NOT touch the...

146
Clean the outside of the machine as 
follows:
B
aPull the paper tray (1) 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 paper tray with a soft cloth to 
remove dust.
 
ePut the paper tray firmly back in the 
machine.
Cleaning the scannerB
aLift the document cover (1). Clean the 
scanner glass (2) and the white 
plastic (3) with isopropyl alcohol on a 
soft lint-free cloth.
 
bIn...

Troubleshooting and Routine Maintenance147
Cleaning the machine printer 
platenB
WARNING 
Be sure to unplug the machine from the AC 
power outlet before cleaning the printer 
platen (1).
  
If ink is scattered on or around the printer 
platen wipe it off with a soft, dry, lint-free 
cloth.
 
 
aUsing both hands, use the plastic tabs 
on both sides of the machine to lift the 
scanner cover until it locks securely into 
the open position.
bClean the machine printer platen (1).
Cleaning the paper pick-up...

148
Cleaning the print headB
To ensure the good print quality, the machine 
will regularly clean the print head. You can 
start the cleaning process manually if 
needed.
Clean the print head and ink cartridges if you 
get a horizontal line in the text or graphics on 
your printed pages. You can clean Black only, 
three colors at a time (Cyan/Yellow/Magenta), 
or all four colors at once.
Cleaning the print head consumes ink. 
Cleaning too often uses ink unnecessarily.
CAUTION 
DO NOT touch the print...

Troubleshooting and Routine Maintenance149
iAfter cleaning is finished, press 
Color Start.
The machine starts printing the Print 
Quality Check Sheet again and then 
return to step e. 
jPress  Stop/Exit .
If you repeat this procedure at least five 
times and the print quality is still poor, 
replace the ink cartridge for the clogged 
color. 
After replacing the ink cartridge, check 
the print quality. If the problem still 
exists, repeat the cleaning and test print 
procedures at least five times for...

150
Checking the ink volumeB
Although an ink volume icon appears on the 
LCD, you can use the Ink key to see a large 
graph showing the ink that is left in each 
cartridge.
aPress  Ink.
bPress  a or  b to choose  Ink Volume .
Press  OK.
The LCD shows the ink volume.
cPress  Stop/Exit .
Note
You can check the ink volume from your 
computer. (See  Printing for Windows
® or 
Printing and Faxing  for Macintosh
® in the 
Software User’s Guide on the CD-ROM.)
 
Uninstalling and installing the 
handset and...

Troubleshooting and Routine Maintenance151
cAttach the side cover. 
Installing the handset and handset 
cradle
B
aRemove the side cover. 
Note
If you cannot open the cover with your 
hand, use a coin to open it.
 
bAlign the recessed arrows on the cradle 
with those on the machine, and then 
slide the cradle toward the front of the 
machine until it clicks into place.
 
cConnect the curled handset cord to the 
machine.
 
 

152
Uninstalling and installing the 
cradle and the bracket 
(MFC-845CW only)16
Uninstalling the cradle and the 
bracket
B
If you want to use the cordless handset 
separately from the machine, you can 
remove the cradle and the bracket.
aUnplug the AC adapter from AC power 
outlet.
bRemove the AC adapter cord from the 
guide on the side of the machine.
 
cPress the tab (1) and lift the cradle (2). 
dPull the tab (1) back and hold it in 
position as you push the bracket (2) to 
the back of the machine....

Troubleshooting and Routine Maintenance153
bAlign the recessed arrows on the 
bracket with those on the machine, and 
then slide the bracket toward the front of 
the machine until it clicks into place.
 
cMake sure you plug the connector into 
the jack (1) and route the cable through 
the hook (2) as shown below.
 
dPress the tab (1) and place the front of 
the cradle in position.
 
ePush the cradle down. 
fRoute the AC power cord through the 
guide on the side of the machine. 
 
gPlug the AC adapter...

154
Machine InformationB
Checking the serial numberB
You can see the machine’s serial number on 
the LCD.
aPress Menu.
bPress  a or  b to choose 
Machine Info. .
Press  OK.
cPress  a or  b to choose  Serial No. .
Press  OK.
dPress  Stop/Exit .
Packing and shipping 
the machine
B
When you transport the machine, use the 
packing materials that came with your 
machine. If you do not pack the machine 
properly, you could void your warranty.
CAUTION 
It is important to allow the machine to ‘park’ 
the print...