Brother International MFC 9760 Owners Manual - Page 84

Regular Maintenance, Cleaning the, Drum Unit, Replacing the Toner, Cartridge

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DIFFICULTY The whole page is printed black. Black Page Nothing is printed on the page. SUGGESTIONS Clean the machine's interior and the primary corona wire of the drum unit. (See Regular Maintenance, page 81 and Cleaning the Drum Unit, page 83.) Also, do not use heat-sensitive paper as it will cause this problem. After cleaning, if the printed pages are still black or the display shows CHANGE DRUM SOON, replace the drum unit with a new one. The drum unit may be damaged. 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 84.) White page Printed pages are marked regular intervals. 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. Example of Regular Marking Printed pages are blurred at the centre or at either edge. Blurred Page 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 81.) If a blurred page occurs after cleaning and the display shows CHANGE DRUM SOON, replace the drum unit with a new one. Ghost images appear on printed page. Ghost Images Adjust the print conditions by changing the Print Density setting. (See Setting the Print Density, page 11.)-OR-Rough surfaces or thick media can cause a ghost image. Make sure you select the Paper Type that suits the paper in your paper type. (See Paper Type, page 18 and 22 and Media Type, page 32.) The drum unit is a consumable and it is necessary to replace it periodically. 78 Chapter 9

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78
Chapter 9
The whole page is printed
black.
Black Page
Clean the machine’s interior and the primary corona wire of the
drum unit. (See
Regular Maintenance
, page 81
and
Cleaning the
Drum Unit
, page 83.) Also, do not use heat-sensitive paper as it will
cause this problem. After cleaning, if the printed pages are still
black or the display shows
CHANGE DRUM SOON
, replace the
drum unit with a new one. The drum unit may be damaged.
Nothing is printed on the
page.
White page
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 84.)
Printed pages are marked
regular intervals.
Example of Regular Marking
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.
Printed pages are blurred at
the centre or at either edge.
Blurred Page
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 81.) If a
blurred page occurs after cleaning and the display shows
CHANGE
DRUM SOON
, replace the drum unit with a new one.
Ghost images appear on
printed page.
Ghost Images
Adjust the print conditions by changing the Print Density setting.
(See
Setting the Print Density
, page 11.)—
OR
—Rough surfaces or
thick media can cause a ghost image. Make sure you select the Paper
Type that suits the paper in your paper type.
(See
Paper Type
, page
18 and 22 and
Media Type
, page 32.)
The drum unit is a consumable and it is necessary to replace it periodically.
DIFFICULTY
SUGGESTIONS