Oki ES3640MFP Service & Troubleshooting Manual page 89

Self Diagnostic Error Codes (Printer)
Code
111 to 117 An Optional Unit for Another Model is Detected
111 = Duplex
114 = 4
117 = Inverter
121 Low Voltage Power Fan Error
123 Environmental Sensor Error
124
Environmental Sensor Error
125 MT Home Position Detection Error
126 Sensor Dew Error
127 Fuser Cooling Fan Error
128 Engine Fan Motor Error
01 = Fuser Fan
04 = Belt Fan
131 to 134
LED Head Error
131 = Y Head
133 = C Head
142 Color Up / Down Error
144 to 147 Toner Feed Switch Error. Toner Lock Lever Open Error
144 = Y ID
150 to 153 The ID Unit Fuse Can not Be Cut
150 = Y
154 The Belt Unit Fuse Can not By Cut
155 The Fuser Unit Fuse Can not Be Cut
160 to 163 Toner Sensor Detection Error
160 = Y
Cause/Description
112 = 2 nd Tray 113 = 3
th th
Tray 115 = 5 Tray 116 = Finisher
02 = Power Fan
05 = ID Fan 06 = Top Cover Fan
132 = M Head
134 = K Head
145 = M ID 146 = C ID
151 = M 152 = C 153 = K
161 = M 162 = C 164 = Black
Install Option / Check Connections
Replace Engine Control Board
rd Tray
See "Unsupported ROM"
See "Power Supply Fan Failure"
See "Environmental Sensor Failure"
See "Environmental Sensor Failure"
See "MT Home Position Detection Error"
Wait for Printer to Acclimate to Environment
Turn On Power. See
See "Fuser Fan Failure"
See "Fan Failure"
03 = PU Motor Fan
See "Cyan, Magenta, Yellow, Black LED Failure"
See "Color Up/Down Error"
See "Toner Feed Switch / Toner Lock Lever Error"
147 = K ID
See "Fuse Cut Error C, M, Y, K Imaging Drum Unit"
See "Fuse Cut Error (Transfer Belt Unit)"
See "Fuse Cut Error (Fuser)"
See "Toner Sensor Detection Error"
Remedy
"Environmental Sensor Failure"