Brother HL-1850 User Manual
CHAPTER 6 TROUBLESHOOTING
6-27
Image Defect Examples
Recommendation
ABCDEFGH
abcdefghijk
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
a b c d e
0 1 2 3 4
Black Horizontal Repetitive Defects
Toner scatters and stains the printed
page.
page.
•
•
Note
•
If you use label sheets for laser printers, the glue from the sheets
may sometimes stick to the drum surface. Clean the drum unit.
See the previous page.
may sometimes stick to the drum surface. Clean the drum unit.
See the previous page.
•
Do not use paper that has clips or staples because they will
scratch the surface of the drum.
scratch the surface of the drum.
•
If the unpacked drum unit is in direct sunlight or room light, it may
be damaged.
be damaged.
ABCDEFGH
abcdefghijk
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
a b c d e
0 1 2 3 4
White Horizontal Stripes
•
•
Make sure you chose the appropriate media type in the printer
driver.
driver.
•
The problem may disappear by itself. Try printing a few pages to
clear this problem especially if you have not used the printer for a
long time.
clear this problem especially if you have not used the printer for a
long time.
•
ABCDEFGH
abcdefghijk
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
a b c d e
0 1 2 3 4
Horizontal Lines
•
The Drum Unit may be damaged. Put in a new Drum Unit.
ABCDEFGH
abcdefghijk
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
a b c d e
0 1 2 3 4
Black Vertical Lines
Printed pages are stained with toner
or have vertical stripes.
or have vertical stripes.
•
•
The fixing unit may be smudged. Call Customer Support.
•
Clean the Corona Wire. See
•
Return the tab on the drum unit to the Home position.