Lexmark C782 Service Manual - Page 45

5061 Symptom tables Symptom table-base printer Symptom Action Fuser fan fails to run or is noisy RIP fan fails to run or is noisy VTB fan fails to run or is noisy Excessive fuser drive motor assembly noise Machine inoperative: Fans don't turn, engine not on, lights not on, and none of the printer functions work. Close Door displays constantly, unable to clear the message, POR incomplete Printer does not complete POST and stapler cycles several times. Operator panel: One or more buttons do not work Operator panel: Display is blank, printer does not sound 5 beeps, but printer is not inoperative Operator Panel: Operator panel displays dots continuously, sounds 3 beeps, and POST is 18incomplete. Operator panel: One pixel or random pixels are missing Paper feed problems, base printer Paper feed problems, integrated tray Printer prints black only, no colors Print quality: 100% single color printed • All black print • All cyan print • All magenta print • All yellow print Print quality: Blank page (no image) Print quality: Evenly spaced horizontal marks or lines on the printed page Print quality: Black line Print quality: Magenta, cyan, or yellow lines. Print quality: Colored lines, streaks, or smudges Go to "925.02 error code service check" on page 2-54. Go to "927.03 error code service check" on page 2-55. Go to "926.01 error code service check" on page 2-54. Go to "Excessive fuser drive motor assembly noise" on page 2-87. Go to "AC and DC power service check" on page 2-74. Go to "Close door/HVPS/printhead interlock switch service check" on page 2-79. Go to "POST incomplete-stapler cycles several times" on page 2-114 Go to "Operator panel LCD/status LED/buttons service check" on page 2-88. Replace the operator panel assembly. See "Operator panel assembly removal" on page 4-68. Go to "Operator panel LCD/status LED/buttons service check" on page 2-88. Replace the operator panel assembly. See "Operator panel assembly removal" on page 4-68. Go to "2xx paper jams" on page 2-9. Go to "Tray 1 service check" on page 2-115. Make sure that the printer is not set up to print black only. If the printer is set up correctly, check the Black Retract (BOR) Motor and gears for correct operation. If the gears are operating correctly, replace the Retract Motor Assembly. See "BOR drive assembly removal" on page 4-34. If this does not correct the problem, go to "Black only retract (BOR) service check" on page 2-78. Go to "Entire page is mostly one color-Full bleed planes in one color" on page 2-94. Go to "Blank page (no image)" on page 2-93. Go to "Vertical lines or streaks" on page 2-98. Black horizontal lines are most likely caused by a shorted charge roll in the print cartridge. Replace the black print cartridge. "Vertical lines or streaks" on page 2-98 or "Horizontal lines or streaks" on page 2-98. Go to "Vertical lines or streaks" on page 2-98 or "Horizontal lines or streaks" on page 2-98. Diagnostic information 2-3