Diagnostic information 2-137
7510
902.02 General upper engine error fuse #3
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 “CMYK
toner add motor
assembly
removal” on
page 4-103.
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 4-54.
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 4-88.
Problem solved.
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