FATAL Error Codes
Troubleshooting Fatal Error codes for OKI Pro9431 Printers
The OKI Pro9431 is a high-performance printer known for its professional-grade output and reliability. However, like any advanced device, it can encounter technical issues. This guide provides a comprehensive list of fatal error codes for the OKI Pro9431, their meanings, and actionable solutions to keep your printer running smoothly.
OKI PRO PRINTERS
What Are Fatal Error Codes?
Fatal error codes, often displayed as “Service Call” errors on the printer screen, indicate critical system issues. These errors typically require troubleshooting, part replacement, or professional technical support.
OKI PRO PRINTERS FATAL ERROR CODES
Common OKI Pro9431 Fatal Error Codes and Solutions
Common OKI Pro9431 Fatal Error Codes and Solutions
| Error Code | Description | Solution |
|---|---|---|
| 001 | Machine Check Exception (e.g., PCB failure). | Restart the printer. If unresolved, replace the Printer Control PCB. |
| 002 | CPU unexpected exception. | Power cycle the printer. Replace the Printer Control PCB if the error persists. |
| 003 | CPU reset error. | Restart the printer. Inspect and replace PCB components if necessary. |
| 005 | Watchdog timer expired. | Restart the printer. Check firmware and replace Printer Control PCB if needed. |
| 020 | CU firmware not detected or checksum error. | Reinstall firmware. Replace the Printer Control PCB if unresolved. |
| 024 | CU Font ROM hash error. | Restart the printer. Replace the Font ROM module if required. |
| 030 | CU RAM check error. | Power off the printer and check the RAM module. Replace if necessary. |
| 135 | Motor lock error (e.g., fuser motor, belt motor). | Check and reseat the indicated motor. Replace the motor or related PCB if the error persists. |
| 582 | Fuser unit installation error. | Ensure the fuser unit is properly installed. Replace the unit if damaged. |
| 689 | Transfer belt unit not detected. | Reinstall the transfer belt unit. Clean connectors and ensure proper alignment. |
| 698 | Non-recommended fuser unit detected. | Replace the fuser unit with a compatible OKI-approved model. |
| 750-757 | Communication error between components. | Inspect cables and connectors. Replace the Main PCB or related components if necessary. |
| 900 | System initialization error. | Power off and restart the printer. Reinstall firmware or replace Printer Control PCB if unresolved. |
Troubleshooting Tips for OKI Pro9431 Fatal Errors
- Restart the Printer: Many errors can be resolved by powering the printer off and on.
- Check Connections: Ensure consumables like the fuser unit, transfer belt, and toner cartridges are correctly installed.
- Inspect Components: Look for signs of damage or wear on key components like the motor, PCB, or RAM.
- Update Firmware: Outdated firmware can trigger error codes. Ensure your printer is running the latest version.
- Seek Professional Help: For persistent issues, contact OKI technical support or an authorized service provider.
Why Address Fatal Errors Promptly?
Ignoring fatal error codes can lead to prolonged downtime, reduced print quality, and even hardware damage. By addressing these issues promptly, you can ensure the longevity and performance of your OKI Pro9431 printer.
Need Help with Your OKI Pro9431?
If you’re experiencing recurring errors or need expert assistance, contact us on 01179 401 402 or click here fill in a technical request.
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