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Install a new toner cartridge (see "Replacing the toner cartridge" on page 75). • The paper may not meet paper specifications; for example, the paper may be too moist or rough. • If the entire page is light, the print resolution setting is too low or the toner save mode is on. Adjust the print resolution and turn the toner save mode off. See the help screen of the printer driver. • A combination of faded or smeared defects may indicate that the toner cartridge needs cleaning. Clean the inside of your machine (see "Cleaning the machine" on page 79). • The surface of the LSU part inside the machine may be dirty. Clean the inside of your machine (see "Cleaning the machine" on page 79). If these steps do not correct the problem, contact a service representative. The top half of the paper is printed lighter than the rest of the paper The toner might not adhere properly to this type of paper. • Change the printer option and try again. Go to Printing Preferences, click the Paper tab, and set the paper type to Recycled (see "Opening printing preferences" on page 57). 6. Troubleshooting 279 Printing quality problems Printing quality problems Condition Suggested solutions Toner specks • The paper may not meet specifications; for example, the paper may be too moist or rough. • The transfer roller may be dirty. Clean the inside of your machine (see "Cleaning the machine" on page 79). AaBbCc • The paper path may need cleaning. Contact a service representative (see "Cleaning the machine" on page 79). AaBbCc AaBbCc AaBbCc AaBbCc Dropouts If faded areas, generally rounded, occur randomly on the page: • A single sheet of paper may be defective. Try reprinting the job. AaBbC AaBbC • The moisture content of the paper is uneven or the paper has moist spots on its surface. Try a different brand of paper. AaBbC • The paper lot is bad. The manufacturing processes can cause some areas to reject toner. Try a different kind or brand of paper. AaBbC • Change the printer option and try again. Go to Printing Preferences, click the Paper tab, and set type to Thick (see "Opening AaBbC printing preferences" on page 57). If these steps do not correct the problem, contact a service representative. White Spots If white spots appear on the page: • The paper is too rough and a lot of dirt from paper falls to the inner components within the machine, so the transfer roller may be dirty. Clean the inside of your machine (see "Cleaning the machine" on page 79). • The paper path may need cleaning. Clean the inside of your machine (see "Cleaning the machine" on page 79). If these steps do not correct the problem, contact a service representative. 6. Troubleshooting 280 Printing quality problems Printing quality problems Condition Suggested solutions Vertical lines If black vertical streaks appear on the page: • The surface (drum part) of the toner cartridge inside the machine has probably been scratched....

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