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Service Guide ML393/ML393CPlus
Chapter 4 Failure Analysis
4.1 OVERVIEW
4.1.01 Introduction
This section is used to isolate problems to the assembly level. Application problems and detection of faulty
components on the printed circuit boards are NOT addressed.
When troubleshooting a defective unit, follow these steps.
1.
Refer to Section 4.3
, which explains where to check for updates to the troubleshooting
information.
2.
Section 4.4
contains tips on preventing problems, as well as a list of common problems.
3.
Section 4.5
shows samples of abnormal outputs.
4.
Section 4.6
provides tables of error messages.
5.
Section 4.7
contains the Repair Analysis Procedures (RAPs)
. Each RAP will ask you questions
or require you to make observations. The answers to these questions and the results of your observations
determine your next course of action. Use the RAP Index to identify which RAP should be used to resolve
the problem with the machine.
6.
Section 4.8
provides the procedures for various printer tests.
7.
Section 4.9
lists the resistance check points.
8.
Section 4.2
lists methods for reporting problems.
If you encounter a situation that is NOT
addressed by the documentation in this kit, please report the problem to Okidata, using one of the
methods listed.
Refer to the Service Center Reference Guide for information on contacting Okidata.
4.1.02 Printer Serial Number Identification
To identify the revision level of a printer, record the serial number from the back of the printer. Refer to the
following to decode the serial number.
Example Printer Serial Number: 401A0154693
Date Code 401 (4 = year. 01 = month)
Revision A
Serial Number 0154693
4.1.03 Firmware Revision Level Identification
To identify the revision level and part number of the firmware, print the Rolling ASCII Test or the Font Test.
Refer to Section 4.8
for information on printing the tests.
Header
At the top of each test is a header.
This header provides the information listed below.
Содержание ML393C Plus
Страница 74: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
Страница 125: ...Copyright 1997 Okidata Division of OKI America Inc All rights reserved See the OKIDATA Business...
Страница 126: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
Страница 278: ...Partner Exchange BPX for any updates to this material http bpx okidata com...
