Brother HL-1800 series - Manual (Page 166)

CHAPTER 6 TROUBLESHOOTING
6-27
Image Defect Examples Recommendation
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Black Horizontal Repetitive Defects
Toner scatters and stains the printed
page.
• The drum unit may be damaged. Put in a new drum unit. See
"Replacing the drum unit" in Chapter 5.
• Make sure you use paper that meets our specifications. See
“What Kind of Paper Can I Use?” in Chapter 1.
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.
• Do not use paper that has clips or staples because they will
scratch the surface of the drum.
• If the unpacked drum unit is in direct sunlight or room light, it may
be damaged.
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
White Horizontal Stripes
• Make sure you use paper that meets our specifications. Rough
or thick paper can cause the problem.
See “What Kind of Paper
Can I Use” in Chapter 1.
• Make sure you chose the appropriate media type in the printer
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.
• The drum unit may be damaged. Put in a new drum unit. See
"Replacing the drum unit" in Chapter 5.
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Horizontal Lines
• The Drum Unit may be damaged. Put in a new Drum Unit. See
"Replacing the drum unit" in Chapter 5.
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Black Vertical Lines
Printed pages are stained with toner
or have vertical stripes.
• The Toner Cartridge may be damaged. Put in a new Toner
Cartridge.
See "Replacing the Toner Cartridge" in Chapter 5.
• The fixing unit may be smudged. Call Customer Support.
• Clean the Corona Wire. See "Cleaning the Corona Wire" in
Chapter 5.
• Return the tab on the drum unit to the Home position.