Brother Dcp 6690cw User Manual

							
Troubleshooting and Routine Maintenance83
B
bPull out the jammed paper (1) and press 
Stop/Exit.
 
 
cReset the machine by lifting the scanner 
cover from the front of the machine and 
then close it.
„ If you cannot remove the jammed 
paper from the front side, or the error 
message still appears on the LCD 
after you remove the jammed paper, 
please go to the next step.
dOpen the Outer Rear Cover (1) from the 
back of the machine. Pull the jammed 
paper out of the machine.
 
 
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eClose the Inner Rear Cover (1) back on 
if it is open like in the illustration below.
 
fClose the Outer Rear Cover.
Make sure the cover is closed correctly.
 
gUsing both hands, use the plastic tabs 
on both sides of the machine to lift the 
scanner cover (1) until it locks securely 
into the open position.
Make sure that there is no jammed 
paper left in the corners of the machine.
 
Note
• If the paper is jammed under the print head, unplug the machine from the power 
source, and then move the print head to 
take out the paper.
• If the print head has stopped in the right  corner as shown in the illustration, you 
cannot move the print head. Hold down 
Stop/Exit  until the print head moves to the 
middle. Then unplug the machine from the 
power source, and take out the paper.
 
• If ink gets on your skin or clothing  immediately wash it off with soap or 
detergent.
 
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Troubleshooting and Routine Maintenance85
B
hGently close the scanner cover using 
the finger holds on both sides of it as you 
push down on the Scanner Cover 
Support (1).
 
WARNING 
Be careful not to trap your fingers under the 
scanner cover.
Always use the finger holds provided on 
both sides of the scanner cover when 
opening and closing it.
 
iPush the paper tray #1 and paper 
tray #2 firmly back into the machine.
Note
Make sure you pull out the paper support 
until it clicks.
 
 
Routine maintenanceB
Replacing the ink cartridgesB
Your machine is equipped with an ink dot 
counter. The ink dot counter automatically 
monitors the level of ink in each of the 
4 cartridges. When the machine detects an 
ink cartridge is running out of ink, the machine 
will tell you with a message on the LCD.
The LCD will tell you which ink cartridge is low 
or needs replacing. Be sure to follow the LCD 
prompts to replace the ink cartridges in the 
correct order.
Even though the machine tells you that an ink 
cartridge is empty, there will be a small 
amount of ink left in the ink cartridge. It is 
necessary to keep some ink in the ink 
cartridge to prevent air from drying out and 
damaging the print head assembly.
CAUTION 
Brother multifunction machines are 
designed to work with ink of a particular 
specification and will work to a level of 
optimum performance and reliability when 
used with genuine Brother Branded ink 
cartridges. Brother cannot guarantee this 
optimum performance and reliability if ink or 
ink cartridges of other specifications are 
used. Brother does not therefore 
recommend the use of cartridges other than 
genuine Brother Branded cartridges or the 
refilling of empty cartridges with ink from 
other sources. If damage is caused to the 
print head or other parts of this machine as 
a result of using other brands of ink or ink 
cartridges, any repairs required as a result 
may not be covered by the warranty.
 
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aOpen the ink cartridge cover.
If one or more ink cartridges are empty, 
for example Black, the LCD shows 
Cannot Print.
bPress the lock release lever as shown to 
release the ink cartridge indicated on 
the LCD. Remove the cartridge from the 
machine.
 
 
cOpen the new ink cartridge bag for the 
colour shown on the LCD, and then take 
out the ink cartridge.
dTurn the green knob on the protective 
yellow cap clockwise until it clicks to 
release the vacuum seal, then remove 
the cap (1).
 
 
eEach colour has its own correct position. 
Insert the ink cartridge in the direction of 
the arrow on the label.
 
fGently push the ink cartridge until it 
clicks, and then close the ink cartridge 
cover.
 
YCB
K
Y CB
K
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Troubleshooting and Routine Maintenance87
B
gThe machine will automatically reset the 
ink dot counter.
Note
• If you replaced an ink cartridge, for example Black, the LCD may ask you to 
verify that it was a brand new one (for 
example,  Did You Change 
Black ). For each new cartridge you 
installed, press  Yes to automatically reset 
the ink dot counter for that colour. If the ink 
cartridge you installed is not a brand new 
one, be sure to press  No.
• If the LCD shows  No Cartridge or 
Cannot Detect  after you install the ink 
cartridges, check that the ink cartridges 
are installed correctly.
 
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 cartridge insertion slots. 
If you do so, the ink may stain your skin.
  
If ink gets on your skin or clothing 
immediately wash it off with soap or 
detergent.
  
If you mix the colours by installing an ink 
cartridge in the wrong position, clean the 
print head several times after correcting the 
cartridge installation.
 
 
Once you open an ink cartridge, install it in 
the machine and use it up within six months 
of installation. Use unopened ink cartridges 
by the expiration date written on the 
cartridge package.
  
DO NOT dismantle or tamper with the ink 
cartridge, this can cause the ink to leak out 
of the cartridge.
 
Cleaning the outside of the 
machineB
Cleaning the Touchscreen as follows:
CAUTION 
Turn off the power switch when you clean 
the Touchscreen.
  
DO NOT use any type of liquid cleaners 
(including ethanol).
 
aClean the Touchscreen with a dry soft 
cloth.
 
 
						

							
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Clean the outside of the machine as 
follows:
CAUTION 
Use neutral detergents. Cleaning with 
volatile liquids such as thinner or benzine 
will damage the outside surface of the 
machine.
  
DO NOT use cleaning materials that 
contain ammonia.
  
DO NOT use isopropyl alcohol to remove 
dirt from the control panel. It may crack the 
panel.
 
aPull the paper trays (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 trays with a soft cloth to 
remove dust.
 
ePut the paper trays firmly back in the 
machine.
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Troubleshooting and Routine Maintenance89
B
Cleaning the scanner glassB
aLift the document cover (1). Clean the 
scanner glass (2) and the white 
plastic (3) with a soft lint-free cloth 
moistened with a non-flammable glass 
cleaner.
 
bIn the ADF unit, clean the white bar (1) 
and the glass strip (2) with a lint-free 
cloth moistened with a non-flammable 
glass cleaner.
 
Note
In addition to cleaning the glass strip with 
a non-flammable glass cleaner, run your 
finger tip over the glass strip to see if you 
can feel anything on it. If you feel dirt or 
debris, clean the glass strip again 
concentrating on that area. You may need 
to repeat the cleaning process three or 
four times. To test, make a copy after each 
cleaning attempt.
 
Cleaning the machine printer 
platenB
WARNING 
Be sure to unplug the machine from the 
electrical socket before cleaning the printer 
platen (1).
 
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) and 
the area around it, wiping off any 
scattered ink with a soft, dry lint-free 
cloth.
 
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2
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Cleaning the paper pick-up 
rollerB
aPull the paper trays completely out of 
the machine.
bUnplug the machine from the electrical 
socket and open the Outer Rear 
Cover (1) and the Inner Rear Cover (2) 
at the back of the machine.
 
cClean the Paper Pick-up Roller (1) with 
isopropyl alcohol on a cotton swab.
 
dClose the Inner Rear Cover back and 
the Outer Rear Cover.
Make sure the cover is closed correctly.
ePut the paper trays firmly back in the 
machine.
fRe-connect the power cord.
Cleaning the print headB
To maintain print quality, the machine will 
automatically clean the print head. You can 
start the cleaning process manually if there is 
a print quality problem.
Clean the print head and ink cartridges if you 
get a horizontal line or blank text in the text or 
graphics on your printed pages. You can 
clean Black only, three colours at a time 
(Cyan/Yellow/Magenta), or all four colours at 
once.
Cleaning the print head consumes ink. 
Cleaning too often uses ink unnecessarily.
CAUTION 
DO NOT touch the print head. Touching the 
print head may cause permanent damage 
and may void the print heads warranty.
 
aPress .
bPress Cleaning .
cPress and choose  Black, Color  or 
All .
The machine cleans the print head. 
When cleaning is finished, the machine 
will go back to standby mode 
automatically.
Note
If you clean the print head at least five 
times and the print has not improved, try 
installing a new genuine Brother Branded 
replacement cartridge for each problem 
color. Try cleaning the print head again up 
to five more times. If the print has not 
improved call your Brother dealer.
 
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Troubleshooting and Routine Maintenance91
B
Checking the print qualityB
If faded or streaked colours and text appear 
on your output, some of the nozzles may be 
clogged. You can check this by printing the 
Print Quality Check Sheet and looking at the 
nozzle check pattern.
Note
Make sure you put paper in the upper tray 
for the initial setup.
 
aPress .
bPress Test Print .
cPress Print Quality .
dPress Colour Start .
The machine begins printing the Print 
Quality Check Sheet.
eCheck the quality of the four colour 
blocks on the sheet.
fThe LCD asks you if the print quality is 
OK.
Do one of the following:
„ If all lines are clear and visible, press 
Yes  to finish the Print Quality check 
and go to step j.
„ If you can see missing short lines as 
shown below, press  No.
gThe LCD asks you if the print quality is 
OK for black and three colours.
Press  Yes or No.
hPress  Colour Start .
The machine starts cleaning the print 
head.
iAfter cleaning is finished, press 
Colour 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 
colour. 
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 the 
new ink cartridge. If ink is still missing, 
call your Brother dealer.
CAUTION 
DO NOT touch the print head. Touching the 
print head may cause permanent damage 
and may void the print heads warranty.
 
Note
 

OK Poor
   

OK Poor
  
 
i
 
When a print head 
nozzle is clogged 
the printed 
sample looks like 
this.After the print 
head nozzle is 
cleaned, the 
horizontal lines 
are gone.
 
						

							
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Checking the print alignmentB
You may need to adjust the print alignment 
after transporting the machine, if your printed 
text becomes blurred or images become 
faded.
aPress .
bPress Test Print .
cPress Alignment .
dPress Mono Start  or Colour Start .
The machine starts printing the 
Alignment Check Sheet.
eCheck the 600 dpi and 1200 dpi test 
prints to see if number 5 most closely 
matches number 0. 
fDo one of the following:
„ If the number 5 samples of both the 
600 dpi and 1200 dpi test prints are 
the best matches, press  Yes to finish 
the Alignment Check and go to 
step i.
„ If another test print number is a 
better match for either 600 dpi or 
1200 dpi, press  No to choose it.
gFor 600 dpi, press the number of the test 
print that most closely matches the 
number 0 sample (1-8).
hFor 1200 dpi, press the number of the 
test print that most closely matches the 
number 0 sample (1-8).
iPress  Stop/Exit .
Checking the ink volumeB
Although an ink volume icon appears on the 
LCD, you can use the ink menu to see a large 
graph showing the ink that is left in each 
cartridge.
aPress .
bPress Ink Volume .
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.)