OKI ES8460 Fault codes

Code

Cause/Description

Remedy

002 - 005

CPU Exception

Power Off/On. If RAM DIMM is installed, remove and

Power OFF/ON.

Re-mount RAM DIMM / Replace RAM DIMM

Replace the CU Board

020

CU ROM Hash Check Error

Power OFF/ON.

Replace the CU PCB

030

CU Resident RAM Check Error

Power OFF/ON.

CU PCB replacement

031

CU Optional RAM Check Error. Is installation of the RAM DIMM normal? Does the MFP recover from the error when the RAMDIMM is replaced?

Re-mount RAM DIMM / Replace RAM DIMM

Replace the CU Board

040

CU EEPROM Error

Re-mount RAM DIMM / Replace RAM DIMM

Replace the CU Board

041

CU FLASH Error

CU PCB FLASH ROM Error

Replace the CU Board

042

File Flash System Error, CU PCB FLASH ROM Error. Failure to access to the Flash ROM that is directly soldered to the CU PCB.

Replace the CU Board

051

CU Fan Error, CPU cooling fan error on CU PCB. Is the CU fan connector connected normally? Does the MFP recover from the error when the fan is replaced?

Re-connect fan. Replace fan. Replace TBM PCB.

054

Communication error between the Controller and the Scanner Unit is detected.

If the MFP does not recover even when the power is turned OFF and back ON, check the connection between the Scanner and Printer.

055

Scanner unit not detected. The CU FW has detected

that the Scanner Unit cannot be recognized though it

had been recognized when the power was turned ON.

If the MFP does not recover even when the power is turned OFF and back ON, check the connection between the Scanner and Printer.

056

Hard disk drive is not installed. Does the MFP recover to normal operation after hard disk is installed and the power is turned OFF once and back ON?

Replace Hard Disk Drive.

Replace CU PCB

057

Scanner command communication timeout

Replace Scanner Main PCB

Replace CU PCB

058

Internal error is detected in the scanner controller.

Replace Scanner Main PCB

070

Postscript core error. Error is detected inside the

postscript core.

 

 

 

Code

Cause/Description

Remedy

072

Engine I/F Error. I/F error between PU-CU. Is CU Assembly installed correctly?

Replace the CU Board

Replace the PU Board

073

Video Error. Error is detected when expanding of the video data. (Illegal data is received.)

Decrease resolution, and execute printing again.

Replace the CU PCB

074

Video Error. Error is detected during expanding of the image data.

Decrease resolution, and execute printing again.

Replace the CU PCB

075

Video Error. Error is detected during expanding of the image data.

Replace the CU Board

081

Parameter matching check error. EEPROM or Flash cannot read/write normally.

Replace the CU Board

104

Engine EEPROM read/write error is detected.

Replace the PU Board

106

Engine control logic error.

Replace the PU Board

111

Duplex unit of another model is detected.

Install the correct Duplex unit.

112

The 2nd tray of another model is detected.

Install the correct 2nd tray.

113

The 3rd tray of another model is detected.

Install the correct 3rd tray.

121

High voltage power supply I/F error. Is the cable between PU PCB and High voltage power supply connected normally? Is there defective contact?

Check for defective contact in the high voltage system.

Replace the High voltage power Supply.

122

Low voltage power supply fan error. Does the fan in the low voltage power supply (bottom right on the front) operate normally? Is the fan connector connected normally?

Confirm connection of the fan connector.

Replace fan motor

Replace PU PCB

123

Environment humidity abnormal/ Humidity sensor is not connected.

Power OFF/ON.

Replace the Control panel PCB

124

Environment temperature abnormal

Power OFF/ON.

Replace the Control panel PCB

126

Dew condensation is detected in MFP. It can easily occur when the MFP is brought indoors directly from outdoors. Leave the MFP for two hours under normal room temperature. Then, turn OFF the power and back ON. Does the error reoccur?

Power OFF/ON.

Replace the Control panel PCB

127

Fixing/ ventilation fan error

Confirm connection of the fan connector.

Replace fan motor

Replace PU PCB

128

05: Fixing unit end cooling fan error.

07: Cooling fan on the side of the power supply block

(side fan) error

Confirm connection of the fan connector.

Replace fan motor

Replace PU PCB

131 - 134

LED head detection is abnormal.

(131 =Y, 132 = M, 133 = C, 134= K) Is the LED head installed normally? Is the LED HEAD FUSE blown?

Install the LED head unit properly.

Check the LED HEAD FUSE.

Turn OFF the power once and back ON.

Replace LED head unit

For the fuse check method, refer to section 2.7.8.

142

ID Up/Down Position detection error.

Reinstall the ID units. Turn OFF the power and back ON.

Replace the ID UP/DOWN sensor.

150 - 153

ID unit fuse is blown.

(150 = Y, 151 = M, 152= C, 153 = K)

Reinstall the ID unit. Turn OFF the power and back ON.

Replace ID Unit

Check the cable connection between PRZ PCB and PU PCB.

Replace PU PCB

154

Belt unit fuse is blown.

Reinstall the Belt unit. Turn OFF the power and back ON.

Check the cable connection

Replace Belt Unit

Replace PU PCB

155

Fuser unit fuse is blown.

After cleaning the connectors of the Fuser, re-install it.

Check the cable connection

Replace Fuser

Replace PU PCB

160 - 163

Toner sensor detection is defective.

(160= Y, 161 = M, 162 = C, 163= K).

Is the toner cartridge installed? Is the toner lock lever set?

Rotate the toner lock lever that fixes the toner cartridge to the locking position.

Turn OFF the power and back ON.

Replace the toner sensor Assy.

167 - 169

Thermistor Slope Error / Compensation Thermistor Error

After cleaning the connectors of the Fuser, re-install it.

Replace Fuser

Replace PU PCB

170 / 171

Short-circuit or open circuit of the Fuser unit thermistor is detected.

After cleaning the connectors of the Fuser, re-install it.

Replace Fuser

Replace PU PCB

172 - 177

Fuser unit thermistor detected abnormal temperature.

(High or low temperature)

After cleaning the connectors of the Fuser, re-install it.

Replace Fuser

Replace Low voltage power supply

Replace PU PCB

181 / 182

Option unit I/F error (181 =Duplex Unit, 182 = Option Tray)

Turn OFF the power and back ON.

Check connection of the option connector.

Replace the option unit.

190

System memory overflow.

Turn OFF the power and back ON.

Install the add-on RAM DIMM

Replace the add-on RAM DIMM

200 - 202

PU Firmware Download Error

Turn OFF the power and back ON.

Reload PU Firmware

203 – 208

214

CU program error. CU program executed illegal process.

Check the connection between CU PCB and PU PCB.

Replace CU PCB

209

Custom Media Type table download has failed.

Turn OFF the power and back ON.

Reload Firmware

231

RFID Reader is not installed. RFID read device error

Check connections of the RFID R/W PCB.

Replace the RFID R/W PCB

Replace the P6X PCB.

901 - 904

Belt temperature is abnormal.

901: Short circuit.

902: Open circuit.

903: High temperature.

904: Low temperature.

Is the cable between the belt thermistor and high voltage

PCB connected normally?

Re-connect the cable properly.

Turn OFF the power and back ON.

Replace the Belt thermistor

918

Duplex FAN Alarm. Duplex internal FAN error.

Check that the Duplex unit is installed properly.

Check that the FAN is connected properly.

Replace the FAN.

923

Black image drum lock error. K ID does not rotate

properly.

Check that the K ID is installed properly.

Replace the K ID unit.

Replace the K ID motor.

928

Fuser motor lock error. Fuser does not rotate properly.

Check that the Fuser is installed properly.

Replace the fuser unit.

Replace the fuser motor.

980

Media jamming error around the fuser. Media is jammed by

entangling around the fuser.

Replace the fuser unit.