Diagnostic information 2-179
7500-XXX
980.05 Engine flicker communication failure
997.00 Duplex controller card assembly type failure
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 Turn the printer off for 60 seconds.
Does the error occur when the power is turned off/on again?
Replace the
printer engine card
assembly.
Go to “Printer
engine card
assembly
removal” on
page 4-117.
Problem solved.
Step Check Yes No
1 Check the duplex unit for proper installation.
Remove duplex unit assembly, and reinstall it.
Perform a two sided print test.
Does the error still occur?
Go to step 2. Problem solved.
2 Perform a 2 sided print test.
Does the error still occur?
Replace the duplex
controller card
assembly.
Go to “Duplex
controller card
assembly removal”
on page 4-304.
Go to step 3.
Problem solved.
3 Perform a 2 sided print test.
Does the error still occur?
Replace the printer
engine card
assembly.
Go to “Printer
engine card
assembly removal”
on page 4-117.
Problem solved.
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