SYMPTOM | PROBLEM | SOLUTION | |
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Fuzzy print. | LED array is dirty. | Clean LED array. | |
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Distorted print. | Paper path, lamp | Generate cleaning page. | |
| assembly, or fusing | Contact service. | |
| unit problem. | ||
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Faded print. | Toner cartridge is | Install toner cartridge correctly. | |
| not correctly |
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| installed. | Replace toner cartridge. | |
| Toner low. | ||
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Smeared or | Dirty rollers; toner | Replace image drum and toner. | |
blotched print. | dropped inside | Contact service. | |
| printer or image | ||
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| drum problem. |
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Printed page is | Is toner low? | Replace toner cartridge. | |
light/blurred. |
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Is paper meant for | Use recommended paper. | ||
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| laser printers? |
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| LED array is dirty. | Clean LED array. | |
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Bold characters | Toner is low. | Install new toner cartridge. | |
and dark lines |
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are smeared. |
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Print is darker | Darkness setting is | Change darkness setting. | |
than usual. | too high. |
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Pages curl | Printing on wrong | Turn paper over in tray. (Note | |
excessively. | side of paper. | arrow on paper package). Install | |
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| paper print side down in tray. | |
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| Moisture in paper. | Avoid storing paper in areas of | |
| Improper storage. | excessive temperature and | |
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| humidity. Store paper in protective | |
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| wrapping. | |
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| High humidity. | Recommended operating humidity: | |
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B4400/B4600 User’s Guide – Troubleshooting > 92