IBM 4247-003 Maintenance Manual - Page 20
Diagnosing Problems, Maintenance Analysis Procedures (MAPs), Defining The Problem - repair
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Chapter 1. Diagnosing Problems Maintenance Analysis Procedures (MAPs) Defining The Problem These Maintenance Analysis Procedures (MAPs) are designed to aid in diagnosing printer problems. The MAPs use a sequential plan for isolating the possible causes of printer problems and point you to the part needing adjustment, repair, or exchange. Suggestions for Using the MAPs v Discuss the printer symptoms with the operator. v Verify that the current configuration is correct. See Appendix A, Printer Configuration, on page 484, or the IBM 4247 Printer Model A00 User's Guide, SA24-4404. Or the IBM 4247 Printer Models 001, 002 User's Guide, SA24-4408. Or the IBM 4247 Printer Model 003 User's Guide, S544-5780 v Verify that the environment, the paper and the forms used are within specifications. See Appendix B, Supplies, Forms, Paths and Environmental Considerations, on page 531. v Make a quick visual inspection for problems - loose or broken parts, disconnected connectors, or forms jams. This check may quickly identify problem areas. v The normal place to start a service call in these MAPs is at ″MAP 0100: START OF CALL″ on page 23. This MAP sends you to a Field Replaceable Unit (FRU) or to another MAP that is indicated by the symptoms. If you bypass ″MAP 0100: START OF CALL,″ and start the service with another MAP, you may be using the wrong MAP. The questions in that MAP may not refer to your symptom and may send you to the wrong resolution. v These MAPs are an aid in solving most problems. If you misunderstand instructions or questions, a MAP may lead you to an incorrect resolution. Start again in the MAPs and read each step carefully. If, after going through the MAPs a second time you still have no solution to the problem, the printer may have two interrelated problems or an intermittent problem. Use other diagnostic techniques or call IBM Support for aid. v Read carefully! The MAPs will aid you in resolving the situation only if you follow every instruction and answer each question accurately. © Copyright IBM Corp. 1995, 2001 20