Black toner marks across the ; Black lines down the page; Curled or wavy- Page 102
Brother HL-2140 User's Guide
Table of Contents
Troubleshooting
94
6
Black toner marks across the
page
The drum unit may be damaged. Put in a new drum unit. See
The toner cartridge may be damaged. Put in a new toner cartridge. See
Make sure that you use paper that meets our specifications. See
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 page 93.
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, the unit may be
damaged.
Black lines down the page
Printed pages have toner stains
down the page.
Clean the corona wire inside the drum unit by sliding the green tab. See
Make sure the primary corona wire cleaner is at the home position (
a
).
The drum unit may be damaged. Put in a new drum unit. See
The toner cartridge may be damaged. Put in a new toner cartridge. See
The fuser unit may be smudged. Call your dealer or Brother Customer Service.
Page skewed
Make sure that the paper or other print media is loaded properly in the paper tray
and that the guides are not too tight or too loose against the paper stack.
Set the paper guides correctly. See
Printing on plain paper and transparencies
If you are using the manual feed slot, see
Printing on plain paper, bond paper or
transparencies from the Manual feed slot
The paper tray may be too full. See
Printing on plain paper and transparencies
Check the paper type and quality. See
Curled or wavy
Check the paper type and quality. High temperatures and high humidity will cause
paper to curl. See
If you do not use the printer often, the paper may have been in the paper tray too
long. Turn over the stack of paper in the paper tray. Also, fan the paper stack and
then rotate the paper 180
°
in the paper tray.
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
ABCDEFGH
abcdefghijk
A B C D
a b c d e
0 1 2 3 4
Detailed Information for Brother HL-2140 User's Guide
Lists of information found in Brother HL-2140 User's Guide - Page 102
- 69. The toner cartridge may be damaged.
- 62. Make sure that you use paper that meets our specifications.
- 5. If you use label sheets for laser printers, the glue from the sheets may sometimes stick to the OPC drum surface.
- 93. Do not use paper that has clips or staples because they will scratch the surface of the drum.
- 77. Make sure the primary corona wire cleaner is at the home position ( a ).
- 69. The toner cartridge may be damaged.
- 62. The fuser unit may be smudged.
- 9. If you are using the manual feed slot, see Printing on plain paper, bond paper or transparencies from the Manual feed slot on page 13.
- 9. Check the paper type and quality.
- 5. Curled or wavy Check the paper type and quality.
- 5. If you do not use the printer often, the paper may have been in the paper tray too long.
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