Lexmark X73 4402-001, Service Manual

Page: 17 / 64

Diagnostic Information
2-3
4402-001
Symptom Tables
Locate the symptom in the following tables and take the appropriate
action.
Carrier Transport Problems
Maintenance Station Problems
Operator Panel Problems
Symptom Action
• No carrier movement
• Slow carrier movement
• Carrier stops
• Carrier slams side frame Go to the “Carrier Transport
Service Check” on page 2-6 .
Symptom Action
Maintenance station:
• Fails to cap the printheads
• Fails to clean the printheads
Go to the “Maintenance Station
Service Check” on page 2-10 .
Symptom Action
• Buttons do not work
• Power or status lights do not
work
Check operator panel cable
connection at J6 on the system
board. Then run the
“Power-On Self
Test (POST) Sequence” on
page 2-1
. If operator panel fails,
replace the operator panel assembly.
If the problem still exists, replace the
system board. Go to the
“System
Board Removal” on page 4-12 .
Note: If any buttons or lights fail,
check connection J6. If the problem
remains, replace the operator panel
assembly. Go to the
“Operator
Panel Removal” on page 4-4 .