"Improving The Print Quality - Brother HHLL--11223300 User Manual

Image Defect Samples
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.
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
White horizontal stripes
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Horizontal Lines
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.
Recommendation
•
The drum unit may be damaged. Install a new drum unit. See
"Replacing the Drum Unit"
•
Make sure that you use paper that meets specifications. See
"What Kind of Paper can I Use?"
✏ Note
•
If you use label sheets for laser printers, the glue from the sheets
may sometimes stick to the OPC drum surface. Clean the drum
unit. See

"Improving the Print Quality"

•
Do not use paper that has clips or staples because they will
scratch the surface of the drum.
•
If the unpacked drum unit is subject to excessive direct sunlight or
room light, the unit may be damaged.
•
Make sure that you use paper that meets the specifications. A
rough surfaced paper or thick media can cause the problem.
•
Make sure that you select the appropriate media type in the
printer driver.
•
The problem may disappear by itself. Try printing multiple pages
to clear this problem, especially if the printer has not been used
for a long time.
•
The drum unit may be damaged. Install a new drum unit. See
"Replacing the Drum Unit"
•
Clean the printer interior and the primary corona wire in the drum
unit. See "Cleaning"
•
The drum unit may be damaged. Install a new drum unit. See
"Replacing the Drum Unit"
•
Clean the primary corona wire of the drum unit. See
in Chapter 5.
•
Make sure the primary corona wire cleaner is at the Home
position (L).
•
The drum unit may be damaged. Install a new drum unit. See
"Replacing the Drum Unit"
•
The toner cartridge may be damaged. Install a new toner
cartridge. See "Replacing the Toner Cartridge"
Make sure that a torn piece of paper is not inside the printer
covering the scanner window.
•
The fixing unit may be smudged. Call Customer Support.
6-16
CHAPTER 6 TROUBLESHOOTING
in Chapter 5.
in Chapter 1.
in this chapter.
in Chapter 5.
in Chapter 5.
in Chapter 5.
in Chapter 5.
"Cleaning"
in Chapter 5.