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102
DocuPrint N4525 Network Laser Printer - Service Guide
RAP 1-47
Error Code J8-5
CRUM Failure
Replace CRU
A Laser Print (EP) Cartridge memory communication error occurred.
Logic Control on the Print Engine Controller Board sensed a wrong or a counterfeit
Laser Print (EP) Cartridge.
Table 1-75 Error Code J8-5 CRUM Failure Replace CRU
Step
Actions and Questions
Yes
No
1
LASER PRINT (EP) CARTRIDGE
REPLACEMENT
Replace the Laser Print (EP) Cartridge with a different
one.
Does the error code still appear?
Go to step 2
Problem
solved
2
PRINT ENGINE CONTROLLER BOARD
REPLACEMENT
Replace the Print Engine Controller Board (RRP 1-72).
Does the error code appear?
Go to step 3
Problem
solved
3
The following printer components and areas are
associated with this specific problem. One or more of
these components or areas may have failed partially or
completely. If you cannot isolate this problem using the
steps in this Repair Analysis Procedure, replace each
component or troubleshoot each area listed below, one at
a time, until you isolate and solve the problem.
Wiring and connectors linking the components
Input/Output Board (RRP 1-70).