Lexmark MS415

Troubleshooting. Print quality. Toner smear check

Actions	Yes	No
Step 1 Check if the fuser screws are tightly fastened. Are they tightly fastened?	Go to step 2.	Tighten the screws.
Step 2 a Turn off the printer. b Remove the rear door and cover. c Disconnect the fuser cable connected to PCN5 of the power supply. d Check for approximate correct resistance on the fuser cable: • 220 V fuser—43 ohms • 110 V fuser—10 ohms • 100 V fuser—8 ohms Is the resistance equal to any of the above values?	Go to step 3.	Replace the fuser.
Step 3 Check the following fuser components for wear or damage: • Gears • Exit rollers • Belt fuser Are they free of damage?	Replace the power supply	Replace the fuser.