OKIDATA OF2200, Service Manual

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Page: 87
Service Guide OF2200/2400/2600
Chapter 2 Failure Analysis
2.6.01 Self-Diagnosis
General Information
The Self-Diagnosis verifies operation of the printer unit, and confirms the presence of Random Access
Memory (RAM) and Read-Only Memory (ROM). The ROM Version is also printed.
Procedure
1. Press SELECT FUNCTION.
2. Press COPY twice.
3. Press LEFT ARROW three times.
After approximately __________ seconds, the test results will be printed.
Okifax 2200: 2.5 minutes
Okifax 2400/2600: 90 seconds
4. Press SELECT FUNCTION to exit the test.
Interpret the report (refer to the sample) as follows.
1. Pattern 1 - All White Image for 64 lines
2. Pattern 2 - Alternating Black/White Image (64 columns by 64 lines)
3. Pattern 3 - All Black Image for 64 lines
4. Pattern 4 - Gray Image for 128 lines
5. Pattern 5 - All White Image for 64 lines
6. M-ROM Version (Main Controller)
7. M-ROM Check (Main Controller)
8. M-RAM Check (Main Controller)
9. P-ROM Version (Printer Controller)
10. P-ROM Check (Printer Controller)
11. P-RAM Check (Printer Controller)