Brother Backup Battery Owner's Manual page 127

DIFFICULTY
Toner scatters and stains the
printed page.
Scattering Toner
The whole page is printed
black.
Black Page
Nothing is printed on the
page.
White page
Printed pages are marked
regular intervals.
Example of Regular Marking
Printed pages are blurred at
the centre or at either edge.
Blurred Page
Ghost images appear on
printed page.
Ghost Images
The drum unit is a consumable and it is necessary to replace it periodically.
Adjust the print conditions by setting the Print Density function.
(See Setting the Print Density, page 22.) Clean the machine's
interior. (See Regular Maintenance, page 120 and Cleaning the
Drum Unit, page 122.) Make sure that you use paper that meets
specifications. (See Acceptable Paper, page 56.) If you still have
scattered toner and the display shows CHANGE DRUM SOON,
replace the drum unit with a new one.
Wipe the electric terminals. (See Regular Maintenance, page 120
and Cleaning the Drum Unit, page 122.) Also, do not use heat-
sensitive paper as it will cause this problem. After cleaning, if the
printed pages are still black and the display shows CHANGE
DRUM SOON, replace the drum unit with a new one.
Make sure that the toner cartridge is not empty. If the toner cartridge
is empty, replace the toner cartridge. (See Replacing the Toner
Cartridge, page 123.)
Markings may disappear by themselves. Try copying at multiple
pages to clear this problem. Markings may occur if the machine has
not been used for a long time. A possible cause is that the surface of
the drum is marked or damaged by excessive exposure to light. In
this case, replace the drum unit with a new one.
Certain environmental conditions such as humidity, high
temperatures, etc. may cause this condition to occur. Make sure the
machine is placed on a flat, horizontal surface. Remove the drum
unit with the toner cartridge installed. Try rocking them from side
to side. You may clear a blurred page by wiping the scanner window
with a clean soft cloth. (See Regular Maintenance, page 120 and
Cleaning the Drum Unit, page 122.) If a blurred page occurs after
cleaning and the display shows CHANGE DRUM SOON, replace
the drum unit with a new one.
Adjust the print conditions by changing the Print Density setting.
(See Setting the Print Density, page 22.)—OR—Rough surfaces or
thick media can cause a ghost image. Make sure you select the Paper
Type that suits the paper in your multi-purpose sheet feeder. (See
Paper Type, page 51 and Media Type, page 59.)
SUGGESTIONS
Troubleshooting and Maintenance
117