Action Yes No
Step 3
Check the cable JTDS for proper connection.
Is it properly connected?
Go to step 4. Reseat the cable.
Step 4
Check the cable JTDS for damage and pinch points.
Is it free of damage?
Replace the
controller board. See
“Controller board
removal” on
page 282.
Replace the toner
density sensor. See
“Toner density
sensor removal” on
page 330.
133 errors
133 error messages
Error code Description Action
133.05 CTLS reading above maximum expected value. Go to
“Unresponsive imaging unit service
check” on page 139.
133.06 CTLS reading below minimum expected value.
133.08 Excessive CTLS noise.
Unresponsive imaging unit service check
Action Yes No
Step 1
a Check if the imaging unit is a supported and genuine Lexmark
supply. If not, then replace it.
b Make sure that the imaging unit is properly installed.
c Make sure that the latest firmware is installed.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
Check the imaging unit contacts and spring for proper installation
or damage.
Are the contacts and spring properly installed and damaged?
Go to step 3. Go to step 5.
Step 3
Check if the imaging unit contacts and spring are beyond repair.
Are the contacts and spring beyond repair?
Contact the next
level of support.
Go to step 4.
Step 4
Straighten the imaging unit contacts and install the spring properly.
Does the problem remain?
Go to step 5. The problem is
solved.
7016
Diagnostic information
139
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