Olivetti PR2 plus, Service Manual

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683311W 5-2
5.1.3 PINPOINTING THE PROBLEM
Carefully examine all the information obtained (information from the operator, printer error signals,
analysis of the documents where the fault has occurred, repetition of the error when starting up the
machine etc.) to recognize and pinpoint the fault on the machine that is to be solved.
At times the fault is generated by more than one cause: it is important in such cases to separate the
faults and deal with them one at a time.
5.1.4 FINDING THE CAUSE
Using experience as a guide, together with the information given in this section, take a logical path
to find the fault, starting from the most probable cause through to the most remote probability, until
the faulty part is found.
5.1.5 SOLVING THE PROBLEM
Make the repairs so that the machine can return to carry out all its functions.
At this stage the information given in chapters 6, 7, 8 and 9 can be of help.
5.1.6 MACHINE TESTING
After the job has been completed, clean up the machine and run a complete test (section 3.5) on it,
if possible in the presence of the operator, to verify that the fault has been solved at that no others
have arisen.