Lexmark CX825 Service Manual page 419

Motor (K developer) failure service check
Action
Step 1
Reset the printer.
Does the problem remain?
Step 2
Check the K developer unit for damage and life expiration.
Is the developer unit damaged or has it reached end of life?
Step 3
Replace the developer unit. See
photoconductor unit removal" on page
Does the problem remain?
Step 4
a
Remove the K developer unit, and then manually turn the
developer drive gear.
b
Check the movement of the gear.
Does the developer drive gear properly turn?
Step 5
Replace the developer unit. See
photoconductor unit removal" on page
Does the problem remain?
Step 6
Check the controller board socket JMAG1 connection.
Is the cable properly connected?
Step 7
Reseat the cable.
Does the problem remain?
Step 8
Check the motor (K developer) connection.
Is the motor properly connected?
Step 9
Reseat the cable.
Does the problem remain?
"Developer unit and
646.
"Developer unit and
646.
Diagnostic information
419
Yes No
Go to step 2. The problem is
solved.
Go to step 3. Go to step 4.
Go to step 4. The problem is
solved.
Go to step 6. Go to step 5.
Go to step 6. The problem is
solved.
Go to step 8. Go to step 7.
Go to step 8. The problem is
solved.
Go to step 10. Go to step 9.
Go to step 10. The problem is
solved.
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