MCU PWB cannot detect INTLK +5 VDC.
Initial Action
Check that the Waste Toner Bottle and all four Drum Cartridges are seated correctly.
Check fault history for 9-925 faults. If this fault has occurred recently, go to the 9-925 RAP.
Check that the I/F PWB is securely connected to the MCU PWB at P410.
Reinstall the IOT software. Refer to the instructions on the s/w install CD.
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