Lexmark T652 Service Manual page 218

Transfer problem service check
Action
Step 1
Check the HVPS.
Does the problem remain?
Step 2
Check the system board.
Does the problem remain?
Step 3
Check the HVPS, input sensor, and toner sensor cable.
Does the problem remain?
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
page 288.
Does the problem remain?
Step 5
Replace the system card. Go to
on page 283.
Does the problem remain?
Internal duplex drive motor service check
Action
Step 1
Check all the connections on the duplex drive motor assembly, and
if necessary, replace the connections.
Does the problem remain?
Step 2
Check all the connections on the system card assembly, and if
necessary, replace the connections.
Does the problem remain?
"HVPS card assembly removal" on
"System card assembly removal"
Diagnostic information
218
Yes No
Go to step 2. The problem is
solved.
Go to step 3. The problem is
solved.
Go to step 4. The problem is
solved.
Go to step 5. The problem is
solved.
Contact the next The problem is
level of support. solved.
Yes No
Go to step 2. The problem is
solved.
Go to step 3. The problem is
solved.
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