Lexmark 7421-036 MX910de

Troubleshooting. Print quality. Toner smear check

Actions	Yes	No
Step 1 Make sure that the paper type and weight are supported. Does the problem remain?	Go to step 2.	The problem is solved.
Step 2 Check the environment for proper humidity. Remove or reduce sources of humidity if necessary. Does the problem remain?	Go to step 3.	The problem is solved.
Step 3 a Make sure that the fuser and its cable are properly connected. b Check the fuser for damage, and replace if necessary Does the problem remain?	Go to step 4.	The problem is solved.
Step 4 a Make sure that the induction heater is properly installed. b Reseat the heater cable. c Check the heater and its cable for damage, and replace if necessary. Does the problem remain?	Go to step 5.	The problem is solved.
Step 5 a Make sure that the induction heater power supply is properly installed. b Reseat the power supply cables. c Check the power supply and its cables for damage, and replace if necessary. Does the problem remain?	Contact the next level of support.	The problem is solved.