Lexmark T652 - Page 218

Transfer problem service check
Action Yes No
Step 1
Check the HVPS.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
Check the system board.
Does the problem remain?
Go to step 3. The problem is
solved.
Step 3
Check the HVPS, input sensor, and toner sensor cable.
Does the problem remain?
Go to step 4. The problem is
solved.
Step 4
a Check the voltage at J20‑4.
Note: The voltage changes from +24 V dc (with the printer
idle) to 0 V dc (when the printer runs the print test).
b If the voltage is incorrect, then check the continuity of line
J20‑4 in the front cable harness to the HVPS.
c If there is no continuity, then replace the cable harness and the
HVPS if necessary. Go to
“HVPS card assembly removal” on
page 288.
Does the problem remain?
Go to step 5. The problem is
solved.
Step 5
Replace the system card. Go to
“System card assembly removal”
on page 283.
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
Internal duplex drive motor service check
Action Yes No
Step 1
Check all the connections on the duplex drive motor assembly, and
if necessary, replace the connections.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
Check all the connections on the system card assembly, and if
necessary, replace the connections.
Does the problem remain?
Go to step 3. The problem is
solved.
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Diagnostic information
218