Black Page; No Print - Lexmark X925 Service Manual

Black page

Step Action and questions
1 Inspect the contact points for the imaging unit and the
printer. Are they clean and free of debris?
2 Clean the contacts. Did this fix the issue?
3 Check the sub frame for bent springs, or contacts. Are
the contacts on the sub frame damaged?
4 Check the HVPS for proper installation. Are the screws
securing the HVPS to the subframe secure?
5 Disconnect and reconnect the HVPS cable at the
bottom of the HVPS. Did this fix the problem?
6 Replace the HVPS. Did this fix the problem?

No print

Step Action and questions
1 Check the paper in the printer for moisture. Is the
paper damp?
2
Check for dewing or moisture on the LED printheads.
Is there moisture on the printheads?
3 Using the Administrative menu, move the transfer belt
to the up and down position. Does the belt move?
4 Check the transfer roll for proper installation. Is the
transfer roll installed correctly?
5
Check the transfer roll contacts for dirt or wear. Are the
transfer roll contacts clean?
6 Check the LED ribbon cables for proper connection at
both ends. Are the LED ribbon cables properly
installed?
7
Check the LED ribbon cable connectors on the
printhead controller board for +5V DC. Is the voltage
correct?
8 Check all the connectors on the printhead controller
board. Are they properly connected
Replace the printhead controller board. Did this fix the
9
problem?
Yes No
Go to step 3 Go to step 2
Problem resolved Go to step 3.
Replace the sub Go to step 4.
frame.
Go to step 5 Tighten the
screws.
Problem resolved Go to step 6.
Problem resolved Contact your
second level
support.
Yes No
Replace the Go to step 2.
paper with dry
paper.
Let the Go to step 3.
printheads dry.
Move the printer
to a less humid
location if
needed.
Go to step 4. Replace the belt
Go to step 5. Reinstall the
transfer roll.
Go to step 6. Clean the
contacts.
Go to step.7 Properly install
the ribbon
cables.
Go to step.8 Replace the
printhead
controller board.
Go to step.9 Properly connect
the connectors.
Problem Contact second
resolved. level support.
Diagnostic information
7541-03x
2-9