Oki ES3640MFP Service & Troubleshooting Manual page 93

Self Diagnostic Error Codes (Printer)
Code
930 Sub CPU Clock Frequency Error
931 to 935 Clock Frequency Error
931 = Duplex
932 = Inverter
933 = Tray 2
934 = Tray 3
935 = Tray 4
940 Waste Toner Transfer Error
Self Diagnostic Error Codes (Scanner/ADF)
Code
0A980 SDRAM Test Error (Flatbed)
0A980 SDRAM Test Error (ADF)
See
ARM7 SDRAM
Lamp
Blink
SDRAM Failure
See
A/D Dark Calibration Error(Flatbed)
Lamp
Flatbed Lamp Error
Blink
See
A/D Dark Calibration Error(ADF)
Lamp
ADF Lamp Error
Blink
See
Home Position Sensor Error
Lamp
Flatbed Motor Error
Blink
See
Lamp Check Error (Flatbed)
Lamp
Blink
See
Lamp Check Error (ADF)
Lamp
Blink
Cause/Description
Cause/Description
Remedy
Check Connections of the Engine PCB (S2M)
Replace the Engine PCB
Check Sensor / Connections
Replace for:
931 = V72-2 Board (Duplex Control Board)
932 = V72-3 (Inverter Control Board)
933 to 935 = V72-1 (Hi Cap Feeder Control Board)
Check that Basket Assembly is in Position
Check Holder Magnet D
Check / Replace Hall IC PCB
Replace Duct Assembly
Remedy
Replace Scanner Control Board
Replace Scanner Control Board
Replace Scanner Control Board
Replace Flatbed Lamp
Replace Scanner Control Board
Replace Duplex Side of ADF Lamp
Replace Scanner Control Board
Check / Replace Home Position Sensor
Check / Replace Flatbed Scanner Motor
Replace Scanner Control Board
Replace Flatbed Lamp
Replace ADF Lamp
Lamp Sense
Blink Key
1 4
2 4
3 4
4 4
5 4
6 4
7 4
8 4