Brother HL-4200CN - Manual (Page 98)

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 registration correctly adjusted? Adjust the color registration.
See Adjusting Color Registration on page
1-1.
Partial blanks 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.
Is the transfer roll cartridge or fuser unit
properly installed in the printer?
Make sure that the transfer roll cartridge or
fuser unit is properly installed.
See Replacing the Transfer Roll Cartridge
(TR-11CL) on page 7-11.
See Replacing the Fuser unit (FP-12CL) on
page 7-14.
Vertical blanks Is the print head cartridge properly installed
in the printer?
Make sure that the print head cartridge is
properly installed.
See Replacing the Print Head Cartridge
(PH-12CL) on page 7-5.
The print head cartridge, transfer roll
cartridge, or fuser unit is old or damaged.
Check the print head cartridge, transfer roll
cartridge and fuser unit and replace them
as necessary.
See Replacing the Print Head Cartridge
(PH-12CL) on page 7-5.
See Replacing the Transfer Roll Cartridge
(TR-11CL) on page 7-11.
See Replacing the Fuser unit (FP-12CL) on
page 7-14.
Symptom Possible Cause Action