Brother MFC4450 Owner's Manual page 156

MFC 4450/OP-US-5.0
TROUBLESHOOTING PROCEDURES
Difficulty
Printed pages are
blurred at the center or
at either edge.
Blurred Page
Ghost images appear on
printed pages.
Ghost Images
NOTE
The drum unit is a consumable item, and it is necessary to replace it periodically.
14-14
Suggestions
Certain environmental conditions such as humidity, high
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" and
"Cleaning the Drum Unit" on page 13-1~3.)
If a blurred page 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 14-5.
• Make sure that you use paper that meets the spacifications.
Rough surface or thick media can cause ghost image.