Lexmark 4049LMO Service Manual - Page 39

4049-XXX Symptom Regularly Spaced Marks Skew, all edges Skew, top and bottom only Light Print Blurred or Fuzzy Print Residual Image Honeycomb Background Horizontal Void or Streak Vertical Void or Streak Banding Go To "Regularly Spaced Marks" on page 2-32. "Skew, all edges" on page 2-33. "Skew, top and bottom only" on page 2-33. "Light Print" on page 2-21. "Blurred or Fuzzy Print" on page 2-15. "Residual Image" on page 2-32. "Honeycomb" on page 2-20. "Background" on page 2-12. "Horizontal Void or Streak" on page 2-20. "Vertical Void or Streak" on page 2-34. "Banding" on page 2-12. Banding Banding appears as light and dark horizontal lines on a page that is supposed to be uniformly gray. It is due to variation in the speed of the paper as it moves from roll to roll during development or transfer. It is undetectable when printing text and is most noticeable on fine dot or horizontal line patterns such as the second page of Print Test 2 or Print Test 3. Inspect the gear train and the paper feed rollers for wear, damage, dirt, or binds. Background Areas that are supposed to stay blank are getting small amounts of toner deposited on them. Clean the erase lamps and the printhead window. Verify that all the erase lamps are working by powering on or off with the top cover open. Verify that there is +24VDC on engine board Diagnostic Information 2-12