Oki B410d B410//B420/B430 User Guide (English) - Page 75
Symptom, Problem, Solution
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SYMPTOM PROBLEM SOLUTION Vertical white streaking or faint areas on page. Toner is low and does not distribute properly, or the drum is worn out. Replace toner cartridge. Check drum and replace the drum, if necessary. Contact service. LED array is dirty. Clean LED array. Vertical black lines. 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. Toner cartridge is not correctly installed. Toner low. Install toner cartridge correctly. Replace toner cartridge. Smeared or blotched print. Dirty rollers; toner dropped inside printer or image drum problem. Replace image drum and toner. Contact service. Printed page is light/ blurred. Is toner low? Is paper meant for laser printers? Replace toner cartridge. Use recommended paper. LED array is dirty. Clean LED array. Bold characters and dark lines are smeared. Toner is low. Install new toner cartridge. Print is darker than usual. Darkness setting is too high. Change darkness setting. Pages curl excessively. Printing on wrong side of paper. 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 and humidity. Store paper in protective wrapping. High humidity. Recommended operating humidity: 2080%. Troubleshooting > 75