Brother MFC 425CN User Manual

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 14
Setting Dial Tone detection
When you send a fax automatically, by default your machine will wait 
for a fixed amount of time before it starts to dial the number. By 
changing the Dial Tone setting to Detection you can make your 
machine dial as soon as it detects a dial tone. This setting can save 
a small amount of time when sending a fax to many different 
numbers. If you change the setting and start having problems with 
dialling you should change back...

12 - 15   TROUBLESHOOTING AND ROUTINE MAINTENANCE
How to improve print quality
Cleaning the print head
To ensure 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 
or three colours at a time (Cyan/Yellow/Magenta), or all four colours 
at once.
Cleaning the print head consumes ink. Cleaning...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 16
Checking the print quality
If faded or streaked colours and text appears 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.
1Press Ink Management.
2Press ▲ or ▼ to select Test Print.
Press 
Menu/Set.
3Press ▲ or ▼ to select Print Quality.
Press 
Menu/Set.
4Press Colour Start.
The machine begins printing the Print Quality Check Sheet.
5Follow the...

12 - 17   TROUBLESHOOTING AND ROUTINE MAINTENANCE
8Press 2 (No) for Black or three 
colours with a problem.
The LCD shows:
Press 
1 (Yes).
The machine will start cleaning the print head.
9After cleaning is finished, press Colour Start. The machine will 
start printing the Print Quality Check Sheet again and then 
return to step 5.
10Press Stop/Exit.
If you still see missing ink in this Print Quality Check Sheet, repeat 
the cleaning and test print procedures at least five times. If ink is still 
missing...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 18
Checking the printing alignment
You should rarely need to adjust the printing alignment however, if 
after transporting the machine your printed text becomes blurred or 
images become faded then adjustment may need to be made.
1Press Ink Management.
2Press ▲ or ▼ to select Test Print.
Press 
Menu/Set.
3Press ▲ or ▼ to select Alignment.
Press 
Menu/Set.
4Press Mono Start or Colour Start.
The machine begins printing the Alignment Check Sheet.
The LCD...

12 - 19   TROUBLESHOOTING AND ROUTINE MAINTENANCE
Checking the ink volume
You can check the ink that is left in the cartridge.
1Press Ink Management.
2Press ▲ or ▼ to select Ink Volume.
Press 
Menu/Set.
3Press ▲ or ▼ to select the colour you 
want to check.
The LCD shows the ink volume.
4Press Stop/Exit.
You can check the ink volume from your computer. (For 
Windows® users, see Status Monitor on page 1-3 in Software 
User’s Guide on the CD-ROM or Macintosh® users, see Status 
Monitor on page 8-2 in...

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 20
Packing and shipping the machine
Whenever 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 head after a 
print job. Listen carefully to the machine before disconnecting it from 
the power source to ensure that all mechanical noise has stopped. 
Not allowing the machine to complete this...

12 - 21   TROUBLESHOOTING AND ROUTINE MAINTENANCE
3Lift the scanner cover to release the lock. Gently push the 
scanner cover support and close the scanner cover.
4Unplug the machine from the telephone wall socket and remove 
the telephone line cord from machine.
5Unplug the machine from the electrical socket.
6Unplug the interface cable from the machine, if it is connected.
7Wrap the machine in the bag and place it in the original carton 
with the original packing material.
 

TROUBLESHOOTING AND ROUTINE MAINTENANCE   12 - 22
8Pack the printed materials in the original carton as shown below. 
Do not pack the used ink cartridges in the carton.
9Close the carton. 
 

12 - 23   TROUBLESHOOTING AND ROUTINE MAINTENANCE
Routine maintenance
Cleaning the scanner
Lift the document cover. Clean the scanner glass with isopropyl 
alcohol on a soft lint-free cloth.
Clean the glass strip under the film with isopropyl alcohol on a 
lint-free cloth.
Document 
Cover
Glass Strip