●
Application/RIP/driver settings
●
Type of output files this application, RIP or driver is generating
●
Some sample files that are representative of what the customer is using
●
Operating system
●
Method of connection to the printer
●
A description of the normal flow when the issue occurs and the typical frequency of occurrence (for
instance, once every hour when sending several files non-stop, each of them with multiple copies)
You are recommended to use the Diagnostics Package to obtain this kind of information.
With this information, the environment can be replicated in order to try to find workarounds. This is also the
information that will be needed at the GBU to investigate and fix the root cause of this issue once it is
escalated.
Hardware-related 79:04
Hardware is, by far, the least likely cause of a 79:04 system error. Replacing hardware components does not
normally fix the issue and increases the total turn around time in finding a workable solution.
In some cases, a failure in a component in the printer’s electronics may cause a 79:04 system error, since the
printer’s electronics are involved in the execution of the firmware and the processing of jobs. It needs to be
noted, however, that hardware failures in the electronics tend to produce specific system errors that point
directly to the component that is failing.
Some hardware problems that could cause the 79:04 error are:
●
Defective clusters on the hard disk. If these clusters are used to execute the firmware or to process a
job, they may produce a 79:04. It needs to be noted however, that most 79:04 errors that are resolved
by an hard disk replacement are in fact, data related 79:04 errors that could have been solved more
efficiently and quickly following the other steps.
●
Defective memory segments. If the RAM memory has some defective segments, a 79:04 may occur
when these segments are used.
●
Intermittent defects in the electronic components that are involved in the processing of a job: carriage
PCA, trailing cable, formatter, and engine PCA. This is a highly unlikely cause, since defects in these
components will produce subsystem specific errors.
Symptoms
There’s no single set of symptoms behind hardware-related 79:04 system errors. The most usual ones,
however are:
●
79:04 during startup. Restarting the printer may or may not solve the problem
●
79:04 while processing or printing a job. Restarting the printer and printing the same job does not
always produce the error.
ENWW Appendix A: How to troubleshoot system error 79:04 and 79.2:04 149
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