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205
TROUBLESHOOTING AND MAINTENANCE
DIFFICULTY SUGGESTIONS
Printed pages are marked Markings may disappear by themselves. Try copying
at regular intervals multiple pages to clear this problem. Markings may
occur if the MFC has not been used for a long time. A
possible cause is that the surface of the drum is
scratched. You must then replace the drum unit with a
new one. If the markings do not disappear, it may be that
the drum was marked or damaged by excessive exposure to
light. In this case, replace the drum unit with a new one.
Printed pages are blurred at Certain environmental conditions such as humidity, high
the center or at either edge temperatures, etc. may cause this condition to occur. Make
sure the MFC 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 windows with a clean soft cloth.
(See “Regular Maintenance”, “Cleaning the Printer” and
“Cleaning the Drum Unit” on pages 214 and 215.) 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 Adjust the print conditions by setting the Print Density
printed page function. Make sure that you use paper that meets the
specifications. Rough surfaces or thick media can cause a
ghost image.
Example of Regular Marking
Blurred Page
Ghost Images
The drum unit is a consumable item and it is necessary to replace it periodically.