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Troubleshooting
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5
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 problems.
Make sure that you choose the correct media type in the printer driver.
Make sure that a torn piece of paper is not stuck inside the machine blocking the
scanner.
The problem may disappear by itself. Print multiple pages to clear this problem,
especially if the machine 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 on page 79.
Lines across the page
Clean the primary corona wire in the drum unit. See Cleaning the corona wire
on page 85.
The drum unit may be damaged. Put in a new drum unit. See Replacing the drum
unit on page 79.
White lines, bands or ribbing
across the page
Check the machine's environment. Conditions such as high humidity and high
temperatures may cause this print quality problem.
If the problem is not solved after printing a few pages, put in a new drum unit. (See
Replacing the drum unit on page 79.)
Examples of poor print
quality
Recommendation
ABCDEFGH
abcdefghijk
ABCD
abcde
01234
ABCDEFGH
abcdefghijk
ABCD
abcde
01234