Oki PRO 8432WT Printer Error Codes

Code: 001

• Display:Service call 001: Error
• Description:Machine Check Exception hardware fault detection (board failure or poor power supply)
• Remedy:Replace the CU/ PU board.

Code: 002 ... 007

• Display:Power Off/On 002: Error to 007: Error PC: nnnnnnnn LR: nnnnnnnn FR: nnnnnnnn
• Description:CPU unexpected exception
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 009

• Display:Power Off/On 009: Error PC: nnnnnnnn LR: nnnnnnnn FR: nnnnnnnn
• Description:CPU unexpected exception
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 010

• Display:Power Off/On 010: Error PC: nnnnnnnn LR: nnnnnnnn FR: nnnnnnnn
• Description:CPU unexpected exception
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 011

• Display:Power Off/On 011: Error PC: nnnnnnnn LR: nnnnnnnn FR: nnnnnnnn
• Description:CPU unexpected exception
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 020

• Display:Service call 020: Error
• Description:CU Program ROM Hash Check Error
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 023

• Display:Service call 023: Error
• Description:CU Font ROM Hash error
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 030

• Display:Service call 030: Error
• Description:CU RAM Check Error
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 031

• Display:Service call 031: Error
• Description:CU Optional RAM Check Error
• Remedy:Is implementation of the RAM DIMM normal? Does replacement of the program RAM DIMM restore the printer?
  Re-implement the RAM DIMM. Replace the RAM DIMM. Replace the CU/ PU board.

Code: 036

• Display:Service call 036: Error
• Description:CU RAM DIMM spec. is not supported.
• Remedy:Is the RAM DIMM genuine? Is implementation of the RAM DIMM normal? Does replacement of the program RAM DIMM restore the printer?
  Use a genuine RAM DIMM. Re-implement the RAM DIMM. Replace the RAM DIMM. Replace the CU/PU board (EEPROM replacement required).

Code: 040

• Display:Service call 040: Error
• Description:CU EEPROM Error
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 042, 043, 045

• Display:Service call 042: Error~ 043: Error 045: Error
• Description:Flash File System Error
  Failed to access to the Flash ROM that is directly mounted on the CU board.
• Remedy:Failed to access to the Flash ROM that is directly mounted on the CU board. Format the Flash forcibly. (This requires caution as it erases NIC-F/W. The NIC-F/W must be written with the maintenance utility after formatting.) Execute system maintenance menu > MAINTENANCE MENU > FLASH FORMAT. After FLASH FORMAT is displayed, release the button and wait until the ON LINE is displayed (about 2 minutes). If the error remains, replace the CU/PU board.

Code: 049

• Display:Service call 049: Error
• Description:Incompatibility between the CU and the engine head type (resolution)
• Remedy:1) Replace the CU/ PU board with the one for the proper head. 2) Replace with a head of proper resolution.

Code: 052

• Display:Power off/on 052: Error
• Description:A DMA Abort error was detected with the Image Processor.
• Remedy:Does this error message reappear? Yes Cycle the power. Replace the CU/ PU board.

Code: 067

• Display:Service call 067: Error
• Description:A communication error was detected during communication with the Sleep Mode interface supervisor program.
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 068

• Display:Service call 068: Error
• Description:The Sleep Mode interface supervisor program was not found.
• Remedy:Does this error recur after power restoration? Yes Program writing by service personnel.

Code: 069

• Display:Service call 069: Error
• Description:Malfunction of the NIC chip was detected.
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 070

• Display:Power off/on 070: Error
• Description:A PSE firmware error was detected.
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 072

• Display:Power off/on 072: Error.
• Description:Engine I/F Error. I/F error between PU and CU
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 073

• Display:Power off/on 073: Error
• Description:An error was detected during image data expansion.
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 075

• Display:Power off/on 075: Error
• Description:An error was detected during image data expansion.
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 077

• Display:Power off/on 077: Error
• Description:An error was detected during image data expansion.
• Remedy:Does this error recur? Yes Replace the CU/ PU board

Code: 081

• Display:Service call 081: Error
• Description:Normal reading/ writing of EEPROM or Flash has become impossible.
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 104

• Display:Service call 104: Error
• Description:The engine EEPROM implementation check at power on showed no problem, but after that a read/write error was detected.
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 106

• Display:Service call 106: Error
• Description:Abnormal engine control logic
• Remedy:Does this error recur? Yes Cycle the power. Replace the CU/ PU board.

Code: 111

• Display:Service call 111: Error
• Description:A duplex unit for another model was detected.
• Remedy:Is a duplex unit provided for this model installed? No Install a correct duplex unit.

Code: 112

• Display:Service call 112: Error
• Description:A 2nd Tray for another model was detected.
• Remedy:Is a 2nd Tray provided for this model installed? No Install a correct 2nd Tray.

Code: 113

• Display:Service call 113: Error
• Description:A 3rd Tray for another model was detected.
• Remedy:Is a 3rd Tray provided for this model installed? No Install a correct 3rd Tray.

Code: 114

• Display:Service call 114: Error
• Description:A 4th Tray for another model was detected.
• Remedy:Is a 4th Tray provided for this model installed? No Install a correct 4th Tray.

Code: 121

• Display:Service call 121: Error
• Description:High voltage power supply interface error
• Remedy:Is the cable connecting the CU board to the high voltage power supply unit connected properly? Is there any defective contact point?
  Re-connect them properly. Check for defective contact points of the high voltage system. Replace the high voltage power supply unit.

Code: 122

• Display:Service call 122: Error
• Description:Low voltage FAN error
• Remedy:Is the FAN (bottom right of the front) of the low voltage power supply block working? Is the FAN connector connected correctly?
  Check to make sure connection of the FAN connector. Replace the low voltage power supply unit. Replace the FAN motor. Replace the low voltage power supply unit.

Code: 123

• Display:Service call 123: Error
• Description:Abnormal environment humidity or unconnected humidity sensor
• Remedy:Does this error recur? Yes Cycle the power. Replace the control panel board (PCQ board).

Code: 124

• Display:Service call 124: Error
• Description:Abnormal environment humidity
• Remedy:Does this error recur? Yes Cycle the power. Replace the control panel board (PCQ board).

Code: 126

• Display:Power off/on 126: Error
• Description:Dew condensation in the printer was detected.
• Remedy:This error tends to occur after a printer is carried in from the outsides. Leave the printer for 2 hours to half a day at room temperature, and turn on the power. Does this error recur?
  After leaving the printer at room temperature, turn on the power again. Replace the control panel board (PCQ board).

Code: 127

• Display:Service call 127: Error
• Description:Fuser FAN error
• Remedy:Is the FAN connector connected properly? Does this error recur?
  Re-connect it properly. Replace the FAN motor. Replace the CU/ PU board.

Code: 128

• Display:Service call 128: Error
• Description:Fan motor abnormality 04: Belt FAN 05: Fuser side FAN 08: ID motor FAN
• Remedy:Is the cable to respective fans connected properly? Does this error recur? Does this error recur?
  Connect the FAN connector properly. Replace the FAN. Replace the CU/ PU board.

Code: 131 ... 134

• Display:Service call 131: Error to 134: Error
• Description:LED head detection error (131=Y, 132=M, 133=C, 134=K)
• Remedy:Is the LED head connected properly? Is the LED HEAD fuse brown? Does this error recur?
  Install the LED head unit properly. Check the LED HEAD fuse. Replace the fuse. Restore the power. Replace the LED head unit.

Code: 142

• Display:Service call 142: Error
• Description:Image drum Up/Down position detection error
• Remedy:Is the image drum unit caught by anything when it is removed or re-installed? Does this error recur at power on? Is the cable connected properly?
  Re-install the image drum unit. Check connection through the CU/PU board, the relay connector, and the ID up/down clutch. Connect it properly. Replace the CU/ PU board.

Code: 154

• Display:Service call 154: Error
• Description:The belt unit fuse blown out.
• Remedy:Is the belt unit connected properly? Does this error recur?
  Re-install the belt unit. Restore the power. After checking for cable connection, replace the CU/PU board.

Code: 155

• Display:Service call 155: Error
• Description:The fuser unit fuse blown out.
• Remedy:Is the fuser unit installed properly? Does this error recur?
  After cleaning the connector of the fuser unit, re-install the fuser unit. Restore the power. After checking for cable connection, replace the CU/PU board.

Code: 160 ... 163

• Display:Service call 160: Error to 163: Error
• Description:Toner sensor detection error (160=Y, 161=M, 162=C, 163=K) This error does not occur with the factory default settings.
• Remedy:Is the toner cartridge installed? Is the lock lever of the toner set? Does this error recur?
  Install the toner cartridge. Move the lock lever of toner cartridge to the lock position. Replace the toner sensor assembly.

Code: 166

• Display:Service call 166: Error
• Description:An abnormality was detected with the power supply temperature thermistor.
  01: Short 02: Open 03: High temp. 04: Low temp.
• Remedy:01, 02: Does this error recur? Does this error recur? Does this error recur? Restore the power. Replace the low voltage power supply unit. Replace the CU/ PU board. Replace the cable between the low voltage power supply unit and the CU/PU board.
  03: Does this error recur? Remove anything obstructing the ventilation slots if any and restore the power. Replace the low voltage power supply unit. Replace the CU/ PU board. Replace the cable between the low voltage power supply unit and the CU/PU board.
  04: Does this error recur? Raise the room temperature and restore the power. Replace the low voltage power supply unit. Replace the CU/ PU board. Replace the cable between the low voltage power supply unit and the CU/PU board.

Code: 167

• Display:Service call 167: Error
• Description:Temperature difference error with Upper Center Thermistor and Planar Heater Thermistor
• Remedy:Is the error message displayed? Does this error recur?
  Restore the power. Replace the fuser unit.

Code: 168

• Display:Service call 168: Error
• Description:Planar Heater Thermistor Error
  01: Short 02: Open 03: High temp. 04: Low temp.
• Remedy:Is the error message displayed? Does this error recur?
  Restore the power. Replace the fuser unit.

Code: 169

• Display:Service call 169: Error
• Description:Upper Side thermistor error
  01: Short 02: Open 03: High temp. 04: Low temp.
• Remedy:Is the error message displayed? Does this error recur?
  Restore the power. Replace the fuser unit.

Code: 170, 171

• Display:Service call 170: Error, 171: Error
• Description:Short circuit or open circuit of the Upper Center Thermistor was detected.
• Remedy:
  Does this error recur? Yes Restore the power. Replace the fuser unit.

Code: 172, 173

• Display:Service call 172: Error, 173: Error
• Description:An either temperature aberration (a hightemperature or cold temperature) of Upper Center Thermistor, Lower Thermistor, Upper Side Thermistor, Planar Heater Thermistor was detected.
• Remedy:Does this error recur? Yes Restore the power. Replace the fuser unit.

Code: 174, 175

• Display:Service call 174: Error, 175: Error
• Description:Short circuit or open circuit of the Lower Thermistor was detected.
• Remedy:Does this error recur? Yes Restore the power. Replace the fuser unit.

Code: 176, 177

• Display:Service call 176: Error, 177: Error
• Description:An abnormal (high or low) temperature of the Lower Thermistor was detected.
• Remedy:Does this error recur? Yes Restore the power. Replace the fuser unit.

Code: 181 ... 184

• Display:Service call 181: Error to 184: Error
• Description:Option unit I/F error (181=Duplex Unit, 182 to 184=Optional Tray)
• Remedy:Does this error recur? Yes Restore the power. Check to make sure the contact points of the connector and replace the optional unit.

Code: 190

• Display:Power off/on 190: Error
• Description:System memory overflow
• Remedy:Does this error recur? Yes Restore the power. Install an add-on RAM DIMM.

Code: 200 ... 202

• Display:Service call 200: Error to 202: Error
• Description:PU Firmware Download error
• Remedy:An error occurred during rewriting of the PU firmware. Restore the power and retry download. (This error doesn’t occur because this process is not performed in normal operation.)