Oki C5100 - Printer Usage Statistics Menu; Usage Menu: Page Counts and Consumable Life

Oki Data CONFIDENTIAL
42049001TH Rev.1 86 /
3 Blank page (Fig 5-2 C )
• Are the LED head assys connected to the CU board (ARC PWB / OWL PWB) properly?
NO Check the cable connection between not properly connected LED assy(s) and CU board
(ARC PWB / OWL PWB), and connect them correctly.
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• YES Are +5V and +3.3V being output to the CU board (ARC PWB / OWL PWB) K, Y, M and C
HEAD connector pins?
+5V: Pins 16, 18, 20, 22 and 24
+3.3V: Pin 14
YES Replace the LED head assys after checking cable connection.
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• NO Are +5V and +3.3V being output to the engine board (RSN PWB) CUIF connector?
+5V: Pins 7, 8 and 9
+3.3V: Pins 10, 11 and 12
NO Replace the low voltage power unit after checking cable connection.
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• YES Is 24V being output to the engine (RSN PWB) HVOLT connector pin 15?
NO Replace the engine board.
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• YES Replace the high voltage power unit or the belt unit after checking cable connection.
Has the problem been corrected?
YES End.
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• NO Are the image drum pins connected to the contact assy properly (see figure 5-2)?
NO Connect not properly connected image drum pin(s) to the contact assy correctly.
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• YES Replace the image drum units.
Note: When replacing the engine board (RSN PWB), extract EEPROM data from it and copy the
data onto a new engine board.
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