Lexmark C935 - General Upper Engine Error Fuse #2

2-64 Printer Service Manual
5057-XXX
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902.01 General upper engine error fuse #2
4
Check the fuser cooling fan cables and any associated
cables for damage.
Are the above components free from crimps and damage?
Go to step 5. Repair or replace
the appropriate
cable assemblies
or replace the
fuser cooling fan.
Go to “Fuser
cooling fan
removal” on
page 4-102.
5
Check the transfer belt cooling fan cables and any
associated cables for damage.
Are the above components free from crimps and damage?
Go to step 6 Repair or replace
the appropriate
cable assemblies
or replace the
transfer belt drive
motor cooling fan.
Go to “Transfer
belt drive motor
cooling fan
removal” on
page 4-93.
6
Check the 24V LVPS cooling fan cables and any associated
cables for damage.
Are the above components free from crimps and damage?
Go to step 7. Repair or replace
the appropriate
cable assemblies
or replace the 24V
LVPS cooling fan.
Go to “24V LVPS
cooling fan
removal” on
page 4-99.
7
Check the printhead assembly cables and any associated
cables for damage.
Are the above components free from crimps and damage?
Go to step 8. Repair or replace
the appropriate
cable assemblies
or replace the
printhead
assembly.
Go to “Printhead
assembly
removal” on
page 4-104.
8
Perform a POR.
Does the error occur when the power is turned off/on?
Replace the upper
printer engine card
assembly.
Go to “Upper
printer engine
card assembly
removal” on
page 4-90.
Problem solved.
Step Check Yes No
1 Perform a POR.
Does the error occur when the power is turned off/on?
Go to step 2. Perform several
print tests.
If the problem
remains, go to
step 2.
Step Check Yes No