Brother DCP 750CW User Manual

Troubleshooting and Routine Maintenance
63
Characters and lines are stacked. Check the printing alignment. (See Checking the printing alignment on page 76.)
Printed text or  images are  skewed. Make sure the paper is loaded properly in the paper tray and the paper side guide 
is adjusted correctly. (See Loading paper and other media on page 16.) 
Make sure the Jam Clear Cover is set properly.
Smudged stain at the top center of 
the printed page.Make sure the paper is not too thick or curled. (See...

64
Copying Difficulties
DifficultySuggestions
Vertical streaks appear on copies. If you see vertical streaks on copies, clean the scanner. (See Cleaning the 
scanner on page 73.)
Poor copy results when using the 
ADF. (DCP-540CN only)Try using the scanner glass. (See Using the scanner glass on page 10.)
Scanning Difficulties
DifficultySuggestions
TWAIN/WIA errors appear while 
scanning.Make sure the Brother TWAIN/WIA driver is chosen as the primary source. In 
PaperPort
® SE with OCR, click File, Scan...

Troubleshooting and Routine Maintenance
65
Network Difficulties
DifficultySuggestions
Cannot print over the Network. Make sure that your machine is powered on and is online and in Ready mode. 
Print a Network Configuration list (see Printing Reports on page 9.) and check the 
current Network settings printed in this list. Reconnect the LAN cable to the hub to 
verify that the cabling and network connections are good. If possible, try 
connecting the machine to a different port on your hub using a...

66
Error messagesB
As with any sophisticated office product, errors may occur. If this happens, your machine identifies 
the error and shows an error message. The most common error messages are shown below.
You can correct most errors by yourself. If you need more help, the Brother Solutions Center offers 
the latest FAQs and troubleshooting tips.
Visit us at http://solutions.brother.com.
Error MessageCauseAction
Cover is OpenThe scanner cover is not closed 
completely.Lift the scanner cover and then...

Troubleshooting and Routine Maintenance
67
No Paper FedThe machine is out of paper or 
paper is not properly loaded in 
the paper tray.Do one of the following:
„Refill the paper in the paper tray, and 
then press Mono Start or Colour 
Start.
„Remove the paper and load it again 
and then press Mono Start or Colour 
Start.
The paper is jammed in the 
machine.See Printer jam or paper jam on page 69.
Out of MemoryThe machines memory is full.Copy operation in progress
Press Stop/Exit and wait until the other...

68
Changing LCD languageB
You can change the LCD language.
aPress Menu
bPress a or b to select 
Initial Setup.
Press OK.
cPress a or b to select 
Local Language.
Press OK.
dPress a or b to select your language.
Press OK.
ePress Stop/Exit.
Document jam (DCP-540CN 
only)B
Documents can jam if they are not inserted or 
fed properly, or if they are too long. Follow the 
steps below to clear a document jam.
Document is jammed in the top of the 
ADF unit
B
aTake out any paper from the ADF that is 
not jammed....

Troubleshooting and Routine Maintenance
69
Printer jam or paper jamB
Take out the jammed paper depending on 
where it is jammed in the machine. Open and 
close the scanner cover to clear the error.
aPull the paper tray (1) out of the 
machine.
 
bPull out the jammed paper (1). 
„If you cannot remove the jammed 
paper from the front, or the error 
message still appears on the LCD 
after you have removed the jammed 
paper, please go to the next step.
cRemove the Jam Clear Cover (1). Pull 
the jammed paper...

70
fLift the scanner cover to release the lock 
(1). Gently push the scanner cover 
support down (2) and close the scanner 
cover (3).
 
gPush the paper tray firmly back into the 
machine. While holding the paper tray in 
place, pull out the paper support (1) until 
it clicks and unfold the paper support 
flap (2).
 
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...

Troubleshooting and Routine Maintenance
71
 
cOpen the new ink cartridge bag for the 
colour shown on the LCD, and then take 
out the ink cartridge.
dRemove the protective yellow cap (1). 
Improper Setup 
DO NOT touch the area shown in the 
illustration below.
 
 
Note
If the protective yellow caps come off 
when you open the bag, the cartridge will 
not be damaged.
 
eEach colour has its own correct position. 
Insert the ink cartridge in the direction of 
the arrow on the label.
 
fLift the lock release...

72
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 stains your skin or clothing, wash with 
soap or detergent at once. 
  
If you mix the colours...