MFC-9760 OWNER'S MANUAL

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
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