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Service Guide ML172/ML182 Series
Chapter 5 Failure Analysis Procedures
5.1 Failure Analysis Procedure
First, verify that a problem exists. Many technicians have spent countless hours "troubleshooting" a good
piece of equipment because they were unfamiliar with its proper operation! Once a problem has been
detected, locate the category which most closely describes the fault on your printer. You should then
perform the referenced procedure (which should lead you to the cause of the problem).
The procedures referred to in the last paragraph are called Repair Analysis Procedures or RAPs. RAPs
will ask the technician questions regarding printer operation / electrical measurements. The answers to
these questions will determine the technicians next course of action.
If the RAPs do not lead you to the solution of the problem, please complete the REPAIR ANALYSIS
PROCEDURE - PROBLEM REPORT and return it to:
OKIDATA
532 Fellowship Rd.
Mt. Laurel, NJ 08054
Attention: Training Department
NOTE
Figure 5-1 is a list of the RAPs currently available.
Figure 5-2 through Figure 5-4c have been included as reference materials for voltage checkpoints and
component locations.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)