2 x 500-sheet tray communication error service check
Actions Yes No
Step 1
Enter the Diagnostics menu, and then navigate to:
PRINTER SETUP > Reset Engine Service Error
Does the problem remain?
Go to step 2. The problem is solved.
Step 2
a Reseat the 2 x 500-sheet tray interface cable.
b Check the cable for damage, and replace if necessary.
Does the problem remain?
Go to step 3. The problem is solved.
Step 3
Check the 2 x 500-sheet tray controller board pins for damage, and replace
if needed. See
“2 x 500-sheet tray controller board removal” on
page 487.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
Expansion controller board failure service check
Action Yes No
Step 1
Enter the Diagnostics menu, and then navigate to:
PRINTER SETUP > Reset Engine Service Error
Does the problem remain?
Go to step 2. The problem is solved.
Step 2
Make sure that the interface cable is properly connected to the finisher
and to the expansion controller board.
Does the problem remain?
Go to step 3. The problem is solved.
Step 3
Check the expansion controller board pins for damage, and replace if
necessary. See
“Expansion controller board removal” on page 351.
Does the problem remain?
Go to step 4. The problem is solved.
Step 4
Check the controller board pins for damage, and replace if necessary. See
“Engine controller board removal” on page 353.
Does the problem remain?
Contact the next level
of support.
The problem is solved.
7421
Diagnostic information
165
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