44205301TH Rev.1 201 /Oki Data CONFIDENTIAL 7. Troubleshooting and repair procedureIf the following error is issued, check the corresponding fuse of the CU/PU control boardand high voltage power supply board.(Refer to Table 7-6.)Table 7-6 Fuse errorFuse Name Error Description Insert Point ResistanceCU/PU board(PU area)F4 Service call 918(However, if the Duplexunit is not installed, itis the 2nd/3rd hoppingerror.)Duplex, 2nd/3rd 24VLess than1 ohmF3, F5 Power supply shut-down(Not displayed onoperator panel)CU 3.3V, PU 5VF7 ID UP/DOWN error.Service call 142Belt motor, ID UP/DOWN motor,Hopping clutch 24VF1 Cover open High voltage power supply board,ID cooling fan, fuser fan 24VF10 Service call 122 Power supply fan, feed clutch,MPT clutch, Fuse cut, feed motor24VHigh voltagepower supplyboardIP901 Cover open High voltage 24VIP902 Service call 121 High voltage 5VCU/PU board(CU area)F15 • Service call 131 to 134error• All white page printLED HEAD 5VF12 Service call 131 to 134errorLED HEAD 3.3VF11 Host USB error Host USB 5V7.6 Fuse check
