Lexmark CS310 Service Manual page 126

Actions
Step 1
Enter the Diagnostics Menu (turn the printer off, press and hold 3 and 6,
turn the printer on, and then release the buttons when the installed
memory and processor speed displays).
Perform the Panel Test. See
Did all the pixels come on?
Step 2
Turn the printer off.
Remove the rear cover. See
Remove the operator panel. See
models only)" on page 259.
Is the operator panel cable properly installed at JLCD2 on the controller
board and the operator panel assembly?
Step 3
Check the UICC card to display cable.
Is the display cable installed at the UICC card correctly?
"Panel Test" on page 172.
"Rear cover removal" on page
"Operator panel removal (for CS510
Diagnostic information
Yes
Go to step 2.
Go to step 3.
290.
Go to step 4.
126
5027
No
Go to step 4.
Reinstall the cable.
Reinstall the cable.