Oki Data CONFIDENTIAL
42049001TH Rev.1 82 /
6 Motor Fan Error
• Does the low voltage power supply fan run after the printer is turned on?
• NO Is 24V being output to the POWER connector on the engine board (RSN PWB)? 24V: Pins
4, 5 and 6
NO Replace the low voltage power unit after checking cable connection.
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• YES Has the low voltage power unit fan replaced?
YES End.
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• NO Replace the low voltage power unit fan.
▼
• YES Does the fuser unit fan fan rotate after the printer is turned on again?
• NO Is 24V being output to the fuse 3 on the engine board (RSN PWB)?
• NO Is 24V being output to the POWER connector on the engine board (RSN PWB)?
24V: Pins 4, 5 and 6
NO Replace the low voltage power unit after checking cable connection.
▼
• YES Replace the engine board.
▼
• YES Replace the high voltage power unit fan.
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• YES End.
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