SYMPTOMS | POSSIBLE CAUSES | STEPS TO TAKE | |
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Vertical lines | The image drum cartridge is | Replace the image drum cartridge. | |
appear. | damaged. |
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| The toner is low. | Open the top cover and tap the cartridge | |
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| a few times to evenly distribute any | |
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| remaining toner. If symptoms persist, | |
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| replace the toner cartridge. | |
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Horizontal Lines | When the interval is about | Wipe it lightly with a soft cloth. Replace | |
and spots | 94mm (4in), the image drum | the image drum cartridge when it is | |
appear | (the green tube) is damaged or | damaged. | |
periodically. | dirty. |
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| When the interval is about | Open/close the top cover, and print | |
| 42mm (1.5in), there may be | again. | |
| foreign particles in the image |
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| drum cartridge. |
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| When the interval is about | Replace the fuser unit. | |
| 87mm (3.5in), the fuser unit is |
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| damaged. |
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| The image drum cartridge has | Replace the image drum cartridge if the | |
| been exposed to light. | problem is not resolved. | |
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White area of | Paper contains static. | Use paper stored in proper temperature | |
paper is lightly |
| and humidity conditions. | |
stained. |
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Too thick paper is used. | Use thinner paper. | ||
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| The toner is low. | Open the top cover and tap the cartridge | |
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| a few times to evenly distribute any | |
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| remaining toner. If symptoms persist, | |
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| replace the toner cartridge. | |
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Periphery of the | The LED head is dirty. | Wipe the LED head with a soft, | |
letters is |
| cloth. | |
smudged. |
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Toner comes off | The thickness and type of the | Set the correct value of Media Type and | |
when it is | paper are incorrectly set. | Media Weight in the Printer menu or set | |
rubbed. |
| one value thicker for Media Weight. | |
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| Recycled paper is used. | Set one value thicker for Media Weight in | |
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| the Printer menu. | |
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Glossiness is not | The thickness and type of the | Set the correct value of Media Type and | |
uniform. | paper are incorrectly set. | Media Weight in the Printer menu or set | |
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| one value lighter for Media Weight. | |
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As well as the suggestions provided in “Dealing with unsatisfactory printing” on page 163, ensure that the scanner unit glass is clean at all times. Refer to “...the document glass” on page 149.
164 • Troubleshooting