Printhead Service Check; Transfer Belt Up Down Check - Lexmark X925 Service Manual

Printhead service check

Step Action and questions
1 Check the LED for any dirt or toner that may distort the
image. Is the LED dirty?
2 Clean the LED. Did this fix the problem?
3 Check the ribbon cable for proper connectivity to the
defective printhead, and the printhead controller
board.Is the cable properly connected?
4 Properly connect the cable on both ends. Did this fix
the problem?
5 Check the cable for continuity. Is there continuity?
6 Replace the defective cable. Did this fix the problem?
7 Replace the printhead. Did this fix the problem?
8 Replace the printhead controller board. Did this fix the
problem?

Transfer belt up down check

Step Action and questions
1 Is the transfer belt position sensor actuator jammed or
broken?
2 Is the belt position sensor cable connected to the
sensor and CN9 on the engine board?
3 Replace the belt position sensor. DId this fix the
problem?
4 Replace the engine board. Did this fix the problem?
Yes No
Go to step 2. Go to step 3.
Problem solved Go to step 3.
Go to step 5. Go to step 4.
Problem solved Go to step 5.
Go to step 6. Go to step 7.
Problem solved Go to step 7.
Problem solved Go to step 8.
Problem solved Contact you
second level
support.
Yes No
Replace the Go to step 2.
transfer belt.
Go to step 3 Properly connect
the cable at both
ends.
Problem solved. Go to step 4.
Problem solved. Contact your
second level
support.
Diagnostic information
7541-03x
2-93