Brother International HL5050 Users Manual - English - Page 124

Black toner marks across, the White lines across the Black lines down

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Examples of poor print quality ABCDEFGH abcdefghijk ABCD abcde 01234 Black toner marks across the page ABCDEFGH abcdefghijk ABCD abcde 01234 Recommendation ■ The drum unit may be damaged. Put in a new drum unit. See Replacing the drum unit in Chapter 5. ■ Make sure that you use paper that meets our specifications. See What kind of paper can I use? in Chapter 1. ■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 Cleaning in Chapter 5. ■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. ■ Make sure that you use paper that meets our specifications. A rough surfaced paper or thick print 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. Put in a new drum unit. See Replacing the drum unit in Chapter 5. White lines across the page ABCDEFGH abcdefghijk ABCD abcde 01234 ■ Clean the inside of the printer and the primary corona wire in the drum unit. See Cleaning in Chapter 5. ■ The drum unit may be damaged. Put in a new drum unit. See Replacing the drum unit in Chapter 5. Lines across the page ABCDEFGH abcdefghijk ABCD abcde 01234 ■ Clean the primary corona wire of the drum unit. See Cleaning in Chapter 5. ■ Make sure the primary corona wire cleaner is at the home position (▲). ■ The drum unit may be damaged. Install a new drum unit. See Replacing the drum unit in Chapter 5. ■ The toner cartridge may be damaged. Put in a new toner cartridge. See Replacing the toner cartridge in Chapter 5. 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 Service. Black lines down the page Printed pages have toner stains down the page. TROUBLESHOOTING 6 - 13

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TROUBLESHOOTING
6 - 13
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.
■
Make sure that you use paper that meets our specifications. See
What kind
of paper can I use?
in Chapter 1.
■
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
Cleaning
in Chapter 5.
■
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.
White lines across the page
■
Make sure that you use paper that meets our specifications. A rough surfaced
paper or thick print 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. Put in a new drum unit. See
Replacing the
drum unit
in Chapter 5.
Lines across the page
■
Clean the inside of the printer and the primary corona wire in the drum unit.
See
Cleaning
in Chapter 5.
■
The drum unit may be damaged. Put in a new drum unit. See
Replacing the
drum unit
in Chapter 5.
Black lines down the page
Printed pages have toner
stains down the page.
■
Clean the primary corona wire of the drum unit. See
Cleaning
in Chapter 5.
■
Make sure the primary corona wire cleaner is at the home position (
▲
).
■
The drum unit may be damaged. Install a new drum unit. See
Replacing the
drum unit
in Chapter 5.
■
The toner cartridge may be damaged. Put in a new toner cartridge. See
Replacing the toner cartridge
in Chapter 5. 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 Service.
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234