Lexmark 11C0200 Service Manual - Page 66

Symptom Power supply fan failure. Action Go to the "Power Supply Cooling Fan Motor Service Check" on page 2-39. Go to the "Paper Jam Service Check" on page 2-35. Go to the Diagnostic Aids chapter and run the LCD and Button tests. If the tests fail, replace the operator panel. If the display has diamonds on it or is blank, run the "Basic Printer Paper Passage Test" on page 2-48. If the test completes and the panel remains blank, replace the operator panel. If diamonds remain, check the SIMMs and riser card for proper installation. If you still have a problem, replace the ROM SIMM as it is the most likely failure. If you still have a problem, replace the controller card. If your machine beeps 5 times and the screen is blank or all diamonds, replace the operator panel. Synchronizing/timing roller does not rotate. Operator panel does not operate properly Foggy print Black pages Blank print White spots Poor reproduction Incorrect color image registration Dirt on back of paper Low image density White and black lines and bands Go to the "Image Quality Troubleshooting" on page 2-42. Evenly spaced marks on the paper, or a single mark in the same place on every page. Paper feed problems in the image transfer roll area Go to the "Marks on Paper Service Check" on page 41. Go to the "Paper Jam Service Check" on page 2-35. Diagnostic Information 2-31