Brother HL-7050N - Manual (Page 194)

TROUBLESHOOTING 6 - 26
HL7050_US_UG_FM5.5
White lines down
the page
■ You may clear the problem by wiping the scanner
window with a soft cloth. See Cleaning the inside of
the printer or the Maintenance Tutorial video on the
supplied CD-ROM.
Black toner marks
across the page
■ The drum unit may be damaged. Put in a new drum
unit. See Replacing the drum unit in Chapter 5.
White Spots on black
text and graphics at
94mm (3.7 in.) intervals
■ The drum unit may be damaged. Put in a new drum
unit. See Replacing the drum unit in Chapter 5.
Black spots at 94 mm
(3.7 in.) intervals.
■ The drum unit may be damaged. Put in a new drum
unit. See Replacing the drum unit in Chapter 5.
Examples of poor
print quality Recommendation
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
94 mm
(3.7 in.)
94 mm
(3.7 in.)
94 mm
(3.7 in.)
94 mm
(3.7 in.)