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TROUBLESHOOTING AND ROUTINE MAINTENANCE
14 - 10
The whole page is printed
black.
Black Page
Clean the DCP’s interior and the primary corona wire of the
drum unit. (See page 14-16.) Also, do not use heat sensitive
paper as it will cause this problem. After cleaning, if the
printed pages are still black or the LCD shows CHANGE
DRUM SOON, replace the drum unit with a new one. The
drum unit may be damaged.
Nothing printed on the page.
White Page
Make sure that the toner cartridge is not empty. Wipe electric
terminals referring to Routine Maintenance and Cleaning the
Drum Unit, on pages 14-14 and 14-16. Make sure that a torn
piece of paper does not remain on the scanner window.
Printed pages are marked at
regular intervals.
Example of Regular
Marking
Markings may disappear by themselves. Try copying multiple
pages to clear this problem. Markings may occur if the DCP
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
the center or at either edge.
Blurred Page
Certain environmental conditions such as humidity and high
temperatures may cause this condition to occur. Make sure the
DCP 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 Routine
Maintenance and Cleaning the Drum Unit, on pages 14-14
and 14-16.) If a blurred page occurs after cleaning and the
LCD shows CHANGE DRUM SOON, replace the drum unit
with a new one.
Ghost images appear on
printed pages.
Ghost Images
Adjust the print conditions by changing the Print Density
setting, page 4-2—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 5-6 and
Media Type, page 8-4.)
The drum unit is a consumable item and it is necessary to replace it periodically.
DIFFICULTY SUGGESTIONS