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Vertical lines | If black vertical streaks appear on the page: | ||||
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| • The drum inside the toner cartridge has probably been |
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| scratched. Install a new toner cartridge. | |
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| If White vertical streaks appear on the page: |
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| • The surface of the LSU part inside the machine may be dirty. | |
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| Clean the LSU (see page 5.5). | |
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Gray background | If the amount of background shading becomes unacceptable, | ||||
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| the procedures below may fix the problem. |
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| • Change to a lighter weight pages. See “Paper Specifications” | ||
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| on page F.3. | ||
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| • Check the printer’s environment; very dry (low humidity) or | |||
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| high humidity (higher than 80% RH) conditions can increase | |||
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| the amount of background shading. | |||
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| • Remove the old toner cartridge and install a new one. See | ||
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| “Installing the Toner Cartridge” on page 2.4. |
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Toner smear | • Clean the inside of the printer. See “Cleaning the Inside” on | ||||
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| • Check the paper type and quality. See “Paper Specifications” |
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| on page F.3. |
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| • Remove the toner cartridge and install a new one. See |
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| “Installing the Toner Cartridge” on page 2.4. |
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Vertical repetitive | If marks repeatedly appear on the printed side of the page at | ||||||
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| defects | even intervals: | ||||
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| • The toner cartridge may be damaged. If a repetitive mark |
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| occurs on the page, print a cleaning sheet several times to |
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| clean the cartridge; see page 5.7. After the printout, if you |
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| still have the same problems, install a new toner cartridge. | |
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| See “Installing the Toner Cartridge” on page 2.4. | ||
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| • Parts of the printer may have toner on them. If the defects |
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| occur on the back of the page, the problem will likely correct | |
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| itself after a few more pages. |
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| • The fusing assembly may be damaged. Contact a service |
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| representative. |
