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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 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 Certain environmental conditions such as humidity, high
the center or at either temperatures, etc. may cause this condition to occur. Make
edge. 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 windows with a clean
soft cloth. (See “Regular Maintenance” and “Cleaning the
Drum Unit” in this chapter.) 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.