Lexmark C925 - Fuser - Fuser Heater Error; Power Switch Error; High Voltage Power Supply Error

2-32 Service Manual
5041-030
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121.05 Fuser - fuser heater error
126.xx Power switch error
130.xx High voltage power supply error
Step Action and questions Yes No
1 Is the fuser installed and seated properly? Go to step 2. Properly install
the fuser.
2
Are CN02 and CN04 on the LVPS, and CN16 on the
printhead controller board properly connected?
Go to step 3. Properly connect
all the cables.
3
Check the fuser connectors on the fuser power cable
for damage. Is there any damage?
Replace the fuser
power cable.
Go to step 4.
4
Check the fuser power cable for continuity. Is there
continuity?
Go to step 5 Replace the fuser
power cable
5
Replace the fuser. Does this fix the problem? Problem solved Go to step 6.
6
Replace the printhead controller board. Does this fix
the problem?
Problem solved Go to step 7.
7
Replace the LVPS. See “Low volt power supply
removal” on page 4-42. Does this fix the problem?
Problem solved Replace the fuser
power cable.
Step Action and questions Yes No
1 Is the power switch cable properly connected to CN27
on the engine controller board?
Properly connect
the connector.
Go to step 2
2
Replace the power switch. Does this fix the problem? Problem resolved Go to step 3.
3
Replace the engine controller board. Does this fix the
problem?
Problem resolved Go to step 4.
4
Replace the power switch cable harness. Does this fix
the problem?
Problem resolved Contact your
second level
support.
Step Action and questions Yes No
1 Check CN11 on the printhead controller board, and
CN01 on the HVPS for proper connectivity. Are the
connection properly connected?
Go to step 2 Properly connect
the connections.
2
Check the HVPS - printhead controller cable for
continuity. Is there continuity?
Go to step 4. Go to strep 3.
3
Replace the HVPS-printhead controller cable. Does
this resolve the problem?
Problem solved Go to step 4.
4
Replace the printhead controller board. Does this
resolve the issue?
Problem solved Go to step 5.
5
Replace the HVPS. Does this resolve the issue? Problem solved Contact your
second level
support.