Brother Hl 4200cn User Manual

TROUBLESHOOTING   5 - 2
Power Problems
Symptom Possible Cause Action
No power Is the printer off? Press the I on the power switch to turn the 
printer
 on.
See Turning the Printer On and Off on page 
2-4.
Is the power cord loose or disconnected? Turn the printer off and connect the power 
cord properly. Turn the printer on again.
Is the printer connected to a correctly rated 
outlet/socket?Connect the printer to an AC power 
outlet/socket that you know works. Do not 
connect any other equipment to the...

5 - 3   TROUBLESHOOTING
Printing Problems
Indicators are on, flashing, or off.
Symptom Possible Cause Action
The Alarm lamp is on Is there an error message on the control 
panel display?Check the message and rectify the error 
accordingly.
See What to Do When an Error Message 
Appears on page 5-16.
The Alarm lamp is 
flashingA problem that the user cannot rectify has 
occurred. Note the error code on the display, turn the 
printer off immediately, disconnect the 
power cord from the outlet/socket, and...

TROUBLESHOOTING   5 - 4
Cannot Print in Windows
The Ready lamp is 
not on or is not 
flashing after 
executing the print 
commandIs the printer properly configured for use 
through a network? (When on a network.)Print the printer configuration list to check 
the network settings.
Correct any inappropriate settings.
See the Network Users Guide on the 
CD-ROM.
The network has a problem. (When on a 
network).Check that the printer is on and execute the 
print command from the computer one 
more time. 
If...

5 - 5   TROUBLESHOOTING
Cannot Print from a Macintosh® Computer
An error message 
appears on the 
computer screenA printer error has occurred. Check the message and rectify the error 
accordingly.
Symptom Possible Cause Action
The printer does not 
appear in the 
Chooser windowIs the printer off? Press the I on the power switch to turn the 
printer on. 
See Turning the Printer On and Off on page 
2-4.
Is the USB or Ethernet interface cable loose 
or disconnected?Turn the printer off and check the...

TROUBLESHOOTING   5 - 6
Print Quality Problems
Blank or Completely Black Pages are Output
Symptom Possible Cause Action
Nothing is printed Two or more sheets may be feeding at 
once.Remove the paper stack from the tray, fan 
it, and reinsert it.
The print head cartridge is old or damaged. Replace the print head cartridge. 
See Replacing the Print Head Cartridge 
(PH-12CL) on page 7-5.
The power supply is defective. Contact your dealer or Brother Customer 
Service.
Output sheets are 
completely blackThe...

5 - 7   TROUBLESHOOTING
Faded or Dirty Printouts, White Areas (drop-outs), Creases, Blurs
Symptom Possible Cause Action
Faded printouts Is the media suitable? Replace the media with a recommend size 
and type, and confirm that your printer 
driver settings are correct. 
See Suitable and Unsuitable Paper Types 
on page 3-1
Is the paper damp? Replace the paper. 
See Loading Paper on page 3-7.
The print head cartridge is old or damaged. Replace the print head cartridge. 
See Replacing the Print Head...

TROUBLESHOOTING   5 - 8
Ink smears when 
rubbed.Is the paper damp? Replace the paper.
See Loading Paper on page 3-7.
Is the media suitable? Replace the media with a recommend size 
and type, and confirm that your printer 
driver settings are correct.
See Suitable and Unsuitable Paper Types 
on page 3-1.
Hair-like marks 
appear around black 
halftone printingThe paper was left unwrapped for a long 
time (especially in a dry environment).Replace the paper. 
See Loading Paper on page 3-7.
Shadows appear...

5 - 9   TROUBLESHOOTING
White spots appear 
in areas of dense 
black printing.Is the media suitable? 
Is the media folded or creased?Replace the media with a recommend size 
and type, and confirm that your printer 
driver settings are correct. 
See Suitable and Unsuitable Paper Types 
on page 3-1
The print head cartridge is old or damaged. Replace the print head cartridge. 
See Replacing the Print Head Cartridge 
(PH-12CL) on page 7-5.
Color around the 
edge of printing is 
incorrect.Is the color...

TROUBLESHOOTING   5 - 10
When duplex printing on 
non-recommended paper, white spots 
appear.Adjust the BTR CurrentAdj. setting on the 
control panel according to the type of media 
that is being used.See BTR CurrentAdj on 
page 4-10.
When duplex printing, white  spots appear. BTR CurrentAdj. setting may not be set to 0 
for all media types.
Set the BTR CurrentAdj. to 0 for all media 
types, using the control panel. See BTR 
CurrentAdj on page 4-10.
When duplex printing on 
non-recommended paper, toner...

5 - 11   TROUBLESHOOTING
Unsatisfactory Printing
Creased paper Is the paper damp? Replace the paper. 
See Loading Paper on page 3-7.
Is the media suitable? 
Are you using creased paper?Replace the media with a recommend size 
and type, and confirm that your printer 
driver settings are correct. 
See Suitable and Unsuitable Paper Types 
on page 3-1.
Is the paper tray properly inserted into the 
printer?Push the paper tray completely back into 
the printer.
Is there any paper or a foreign object 
jammed in...