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LED array is dirty. Clean LED array.
Vertical black lines. Is toner low? Replace toner cartridge.
Hardware problem. Contact service.
Fuzzy print LED array is dirty. Clean LED array.
Distorted print Paper path, lamp assembly, or fusing unit problem. Generate Cleaning Page. Contact service.
Faded print after installation. Toner cartridge is not correctly installed. Install toner cartridge correctly.
Smeared or blotched print Dirty rollers; toner dropped inside printer Generate Cleaning Page. Contact service.
or image drum problem.
Printed page is light or blurred. Is toner low? Replace toner cartridge.
Is paper meant for laser printers? Use recommended paper.
LED array is dirty. Clean LED array.
Bold characters and dark lines Toner is low. Install new toner cartridge.
are smeared.
Print is darker than usual. Darkness setting is too high. Change darkness setting.
Pages curl excessively Printing on wrong side of paper. High humidity. Turn paper over in tray. (Note arrow on paper
package). Install paper print side down in tray.
Moisture in paper. Improper storage. Avoid storing paper in areas
of excessive temperature changes and humidity.
Store paper in protective wrapping.
High humidity. Recommended operating humidity: 20-80%