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| Condition | Suggested solutions | |
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The top half of the | The toner might not adhere properly to this type of | |||
paper is printed | paper. | |||
lighter than the | • Change the printer option and try again. | |||
rest of the paper | Go to the Printing Preferences, click the | |||
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| Paper tab, and set the paper type to Recycled. |
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Toner specks | • | The paper may not meet specification; for |
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| example, the paper is too moist or too rough |
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| (See "Print media specifications" on page 92). |
| • | The paper path may need cleaning (See |
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| "Cleaning the inside" on page 72). |
| Dropouts |
| If faded areas, generally rounded, occur randomly |
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| on the page. |
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| • A single sheet of paper may be defective. Try |
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| reprinting the job. |
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| • The moisture content of the paper is uneven or |
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| the paper has moist spots on its surface. Try a |
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| different brand of paper (See "Print media |
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| specifications" on page 92). |
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| • The paper lot is bad. The manufacturing |
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| processes can cause some areas to reject |
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| |
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| toner. Try a different kind or brand of paper. |
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| • Change the printer option and try again. Go to |
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| printer properties, click the Paper tab and set |
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| type to Thick Paper (See "Opening printing |
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| preferences" on page 60). |
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| • If these steps do not correct the problem, |
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| contact a service representative. |
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| White Spots |
| White spots appear on the page. |
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| • The paper is too rough and a lot of dirt from the |
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| paper falls to the inner devices within the |
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| machine, which means the transfer belt may be |
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| dirty. Clean the inside of your machine. Contact |
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| a service representative. |
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| • The paper path may need cleaning. Contact a |
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| service representative. |
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| Condition |
| Suggested solutions | |||
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Vertical lines |
| If black vertical streaks appear on the page: | ||||
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| • The imaging unit has probably been scratched. |
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| Remove the imaging unit and install a new one |
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| (See "Replacing the imaging unit" on page 87). |
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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 |
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| may be dirty. Clean the LSU by opening and |
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| closing the front cover several times and if the |
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| problem still occurs call the contact a service |
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| representative. |
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Color or Black |
| If the amount of background shading becomes | ||||
background |
| unacceptable: | ||||
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| • Change to a lighter weight paper (See "Print |
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| media specifications" on page 92). |
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| • 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 amount |
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| of background shading. |
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| • Remove the old toner cartridge and install a |
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| new one (See "Replacing the toner cartridge" |
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| on page 86). |
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Toner smear |
| • Clean the inside of the machine. See "Cleaning | ||||
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| the inside" on page 72. |
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| • Check the paper type and quality. See "Print |
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| media specifications" on page 92. |
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| • Remove the toner cartridge and install a new |
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| one. See "Replacing the toner cartridge" on |
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| page 86. |
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Vertical repetitive | If marks repeatedly appear on the printed side of | |||||
defects |
| the page at even intervals: | ||||
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| • The toner cartridge may be damaged. If a |
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| repetitive mark occurs on the page, print a |
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| cleaning sheet several times to clean the |
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| cartridge. After the printout, if you still have the |
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| same problems, remove the toner cartridge and |
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| install a new one (See "Replacing the toner |
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| cartridge" on page 86). |
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| ||
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| • Parts of the machine may have toner on them. |
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| If the defects occur on the back of the page, the |
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| problem will likely correct itself after a few more |
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| pages. |
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| • The fusing assembly may be damaged. |
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| Contact a service representative. |
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