Actions Yes No
Step 1
Turn the printer off.
Remove the rear cover. See
“Rear cover removal” on page 290.
Remove the operator panel. See
“Operator panel removal (for CS510
models only)” on page 259.
Is the operator panel assembly cable properly installed at JLCD2 on the
controller board and the operator panel assembly?
Go to step 2. Reinstall the cable.
Step 2
Replace the UICC card to display cable.
Is the display cable installed at the UICC card correctly?
Go to step 3. Reinstall the cable.
Step 3
Replace the display. See
“Operator panel removal (for CS510 models
only)” on page 259.
Is the operator panel still blank?
Go to step 4. Problem resolved.
5027
Diagnostic information
134
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