Samsung SCX4521F Service Manual - Page 116
Ghost 3, Ghost 4, Stains on the Face
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Troubleshooting 6.5.11 Ghost (3) • Description White ghost occurs in the black image printing at 47.5mm intervals. DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr 47.5mm Check and Cause 1. The life of the developer may be expired. Solution 1. Occur in the developer cartridge, replace the developer and try to print out. 2. The abnormal voltage and bad contact of the terminal of the supply roller 2. Check the approved voltage of the supply roller and contact of the terminal and adjust if necessary. 6.5.12 Ghost (4) • Description Ghost occurs at 47.5mm(or 63.9mm) intervals. DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr DDiiggiittaall PPrriinntteerr 47.5 or 63.9mm Check and Cause The temperature of the fuser is maintained high. Solution 1. Disassemble the fuser and remove the contaminated toner particles on the roller and clean the foreign matter between Thermistor and Heat roller. ( Caution : can be deformed) 6.5.13 Stains on the Face of Page • Description The background on the face of the printed page is stained. Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer Check and Cause 1. Toner leakage due to improperly sealed developer. Solution 1. Replace the developer cartridge. 2. If the transfer roller is contaminated, stains on the face of page will occur. 2. If the transfer roller is contaminated, run DRUM Cleaning Mode Print 2 or 3 times. And perform Self-Test 2 or 3 times to remove contamination. Samsung Electronics Service Manual 6-21
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