Condition |
| Suggested solutions |
Vertical lines | If black vertical streaks appear on the page: | |
| • | The drum inside the printer has probably |
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| been scratched. Remove the drum cartridge |
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| and install a new one. See page 13.5. |
| If white vertical streaks appear on the page: | |
| • | The surface of the LSU part inside the |
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| machine may be dirty. Clean the LSU. |
|
| Contact a service representative. |
Gray background | If the amount of background shading becomes | |
| unacceptable: | |
| • | Change to a lighter weight paper. See |
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| page 5.3. |
| • | Check the machine’s environment: very dry |
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| (low humidity) or high humidity (higher than |
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| 80% RH) conditions can increase the |
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| amount of background shading. |
| • | Remove the old drum and toner cartridge |
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| and then, install a new one. See page 13.4. |
Toner smear | • | Clean the inside of the machine. Contact a | |
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| service representative. |
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| |
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| • | Check the paper type and quality. See |
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| page 5.3. |
•Remove the drum and toner cartridge and then, install a new one. See page 13.4.
Vertical repetitive | If marks repeatedly appear on the printed side |
defects | of the page at even intervals: |
• The drum and toner cartridge may be damaged. If a repetitive mark occurs on the page, print a cleaning sheet several times to clean the cartridge; contact a service representative. After the printout, if you still have the same problems, remove the drum and toner cartridge and then, install a new one. See page 13.4.
•Parts of the machine may have toner on them. If the defects occur on the back of the page, the problem will likely correct itself after a few more pages.
•The fusing assembly may be damaged. Contact a service representative.
| Condition | Suggested solutions |
|
| |
Background scatter Background scatter results from bits of toner | ||
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| randomly distributed on the printed page. |
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| |
• The paper may be too damp. Try printing with a different batch of paper. Do not open packages of paper until necessary so that the paper does not absorb too much moisture.
• If background scatter occurs on an envelope, change the printing layout to avoid printing over areas that have overlapping seams on the reverse side. Printing on seams can cause problems.
•If background scatter covers the entire surface area of a printed page, adjust the print resolution through your software application or the printer properties.
Misformed | • | If characters are improperly formed and | ||
characters |
| producing hollow images, the paper stock | ||
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|
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| may be too slick. Try a different paper. See |
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| page 5.3. |
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| • | If characters are improperly formed and |
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| producing a wavy effect, the scanner unit |
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|
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| may need service. For service, contact a |
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| service representative. |
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Page skew | • | Ensure that the paper is loaded properly. | ||
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| • | Check the paper type and quality. See |
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| page 5.3. |
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| • | Ensure that the paper or other material is |
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| loaded correctly and the guides are not too |
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| tight or too loose against the paper stack. |
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Curl or wave | • | Ensure that the paper is loaded properly. |
| • | Check the paper type and quality. Both high |
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| temperature and humidity can cause paper |
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| curl. See page 5.3. |
| • Turn over the stack of paper in the tray. Also | |
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| try rotating the paper 180° in the tray. |
