Diagnostic information 2-65
5057-XXX
902.02 General upper engine error fuse #3
2
Check the erase lamp cable assemblies and any other
associated cables for damage.
Are the above components free from crimps and damage?
Go to step 3. Repair or replace
the appropriate
cable assemblies.
3
Check the image density sensor assembly cables for
damage.
Are the above components free from crimps and damage?
Go to step 4. Repair or replace
the appropriate
cable assemblies
or the image
density sensor
cable assembly.
Go to “Image
density sensor
assembly
removal” on
page 4-44.
4
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.
2
Check the CMYK toner add motor assembly cables and any
associated cables for damage.
Are the above components free from crimps and damage?
Go to step 3. Repair or replace
the appropriate
cable assemblies
or replace the
CMYK toner add
motor assembly.
Go to ???
3
Check the waste toner agitator motor assembly cables and
any associated cables for damage.
Are the above components free from crimps and damage?
Go to step 4. Repair or replace
the appropriate
cable assemblies
or the waste toner
agitator motor
assembly.
Go to “Waste
toner agitator
motor assembly
removal” on
page 4-43.
Step Check Yes No
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