Brother MFC-9030 Owner's Manual page 136

DIFFICULTY
Printed pages are blurred at
the centre or at either edge.
Blurred Page
Ghost images appear on
printed page.
Ghost Images
The drum unit is a consumable and it is necessary to replace it periodically.
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 a blurred page by wiping the scanner
windows with a clean soft cloth. (See Regular Maintenance, page
130 and Cleaning the Drum Unit, page 131.) If a blurred page
occurs after cleaning and the display shows CHANGE DRUM
SOON, replace the drum unit with a new one.
Adjust the print conditions by setting the Print Density function.
Make sure that you use paper that meets the specifications. Rough
surfaces or thick media can cause a ghost image.
SUGGESTIONS
Troubleshooting and Maintenance
127