Brother International IntelliFax-4100 Users Manual - English - Page 118
Copy Quality Difficulties, White Stripes or, Faint lmages, Dark Stripes or, Toner Stains, White Spots - drum unit
UPC - 012502616399
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DIFFICULTY SUGGESTIONS Copy Quality Difficulties Vertical streaks appear in copies. Sometimes you may see vertical streaks on your copies. Either the scanner or the primary corona wire for printing is dirty. Clean them both. (See pages 13-18 to 13-20) Print Quality Difficulties Printouts are too dark or Adjust the print conditions by setting the Print Density too light. setting. It has been factory set to the middle position. (See Setting the Print Density, page 5-4.) Printed pages contain white stripes. White Stripes or Faint lmages You may fix this by wiping the scanner windows with a clean soft cloth. (See Cleaning the Document Scanner, page 13-18 and Replacing the Drum Unit, page 13-23.) If you still see white stripes or faint images and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Check the machine's environment. Conditions such as humidity and high temperatures may cause this print defect to occur. Printed pages are stained with toner or have vertical stripes. Dark Stripes or Toner Stains Clean the machine's interior and the primary corona wire of the toner cartridge. (See Routine Maintenance, page 13-18 and Cleaning the Drum Unit, page 13-19.) Make sure that the tab of the corona wire is at the home position. If after cleaning, you still see dark stripes or toner stains and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Printed pages have white in black text and graphic areas. White Spots Make sure that you use paper that meets the specifications. Rough surface or thick media can cause the problem. If you still see white spots and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Check the machine's environment; conditions such as high humidity may cause this situation to occur. 13 - 12 T R O U B L E S H O O T I N G A N D R O U T I N E M A I N T E N A N C E