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TROUBLESHOOTING PROCEDURES
16-17
MFC 4550/6550MC/7550MC
OP-US-5.0
Printed pages are
blurred at the center or
at either edge.
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 the problem by wiping the scanner windows
with a clean soft cloth. (See “Regular Maintenance” and
“Cleaning the Drum Unit” on page 14-1~3.)
If the same problem occurs after cleaning and the display
shows CHANGE DRUM, replace the drum unit with a new
one.
• Turn the print density dial counterclockwise for lighter images.
See “The Print is too Light or too Dark” on page 16-6.
• Make sure that you use paper that meets the spacifications.
Rough surface or thick media can cause the problem.
Ghost images appear on
printed pages.
Blurred Page
Ghost Images
Question Recommendation
NOTE
The drum unit is a consumable item, and it is necessary to replace it periodically.