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Examples of poor print<br />
quality<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
Black toner marks across<br />
the page<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
White lines across the page<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
Lines across the page<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
Black lines down the page<br />
Printed pages have toner<br />
stains down the page.<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
White lines down the page<br />
ABCDEFGH<br />
abcdefghijk<br />
ABCD<br />
abcde<br />
01234<br />
Page skewed<br />
Recommendation<br />
The drum unit may be damaged. Put in a new drum unit. (See Replacing<br />
the drum unit on page 12-30.)<br />
Make sure that you use paper that meets our specifications. (See About<br />
paper on page 2-1.)<br />
If you use label sheets for laser printers, the glue from the sheets may<br />
sometimes stick to the OPC drum surface. To clean the drum unit, follow<br />
the steps in the previous page.<br />
Do not use paper that has clips or staples because they will scratch the<br />
surface of the drum.<br />
If the unpacked drum unit is in direct sunlight or room light, the unit may<br />
be damaged.<br />
Make sure that you use paper that meets our specifications. A rough<br />
surfaced paper or thick print media can cause the problem.<br />
Make sure that you select the appropriate media type in the printer<br />
driver.<br />
The problem may disappear by itself. Try printing multiple pages to clear<br />
this problem, especially if the printer has not been used for a long time.<br />
The drum unit may be damaged. Put in a new drum unit. (See Replacing<br />
the drum unit on page 12-30.)<br />
Clean the inside of the printer and the primary corona wire in the drum<br />
unit. (See Cleaning the drum unit on page 12-24.)<br />
The drum unit may be damaged. Put in a new drum unit. (See Replacing<br />
the drum unit on page 12-30.)<br />
Clean the primary corona wire of the drum unit.<br />
Make sure the primary corona wire cleaner is at the home position (▲).<br />
The drum unit may be damaged. Install a new drum unit. (See Replacing<br />
the drum unit on page 12-30.)<br />
The toner cartridge may be damaged. Put in a new toner cartridge. (See<br />
Replacing the toner cartridge on page 12-25.) Make sure that a torn<br />
piece of paper is not inside the printer covering the scanner window.<br />
The fixing unit may be smudged. Call Service/Support phone number.<br />
You may clear the problem by wiping the scanner window with a soft<br />
cloth. (See Cleaning the printer on page 12-23.)<br />
The toner cartridge may be damaged. Put in a new toner cartridge. (See<br />
Replacing the toner cartridge on page 12-25.)<br />
Make sure the paper or other print media is loaded properly in the paper<br />
tray and that the guides are not too tight or too loose against the paper<br />
stack.<br />
Set the paper guides correctly.<br />
If you are using the manual feed tray. (See How to load paper on page<br />
2-4.)<br />
The paper tray may be too full.<br />
Check the paper type and quality. (See About paper on page 2-1.)<br />
TROUBLESHOOTING AND ROUTINE MAINTENANCE 12 - 17
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