sc670Pro C7200sx

Ricoh Pro C7200sx Error SC670: Communication Fault

Ricoh Pro C7200sx error SC670 denotes a failure in the communication handshake between the controller (BCU) and the user operation panel. This prevents the machine from completing its startup cycle. It is frequently caused by power anomalies or logic board communication hang-ups.

1 views

Common causes

  • 1BCU Connection loss: Mainboard not communicating with panel.
  • 2Firmware Corruption: Data integrity issues within the control board.
  • 3Voltage Spike: Power fluctuation affecting internal buses.
  • 4Network Traffic: Malformed packets causing control conflict.

Solutions

Diagnóstico rápido

The SC670 error usually appears during boot-up. If the display fails to transition from the logo screen to the job ready menu, it confirms a communication handshake failure between the user interface and the controller.

Solución paso a paso

  1. Safe Shutdown: Turn off the printer and wait at least 2 minutes.
  2. Isolate: Unplug all Ethernet and USB peripherals from the machine.
  3. Clean Boot: Power the unit on while isolated. If it boots successfully, a peripheral or network configuration is likely at fault.
  4. Firmware Review: Check if the BCU firmware is up-to-date once access is restored.

Prevención y mantenimiento

Ensure all connected devices and the printer itself are powered through an industrial-grade UPS. Voltage stability is critical for the communication bus between the controller and the interface.

Cuándo llamar a un técnico

If the machine fails to boot even when completely isolated from the network, a main controller board (BCU) failure is highly probable, which requires a service call.

Ficha técnica del equipo

  • Technology: Ricoh Digital Controller
  • Performance: 85 ppm
  • Connectivity: 10/100/1000 Ethernet
  • Paper Handling: N/A (Flow Control)
  • Compatible Consumables: N/A (Electronics only)
  • Recommendation: Production environments
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Full Power Cycle

    Turn off the printer and disconnect it from the power source to ensure all residual energy is cleared.

  2. 2

    Network Check

    Disconnect the Ethernet cable to rule out network traffic conflict causing the control board fault.

  3. 3

    Reboot

    Power on the unit without any network cables attached to see if the system completes the boot sequence.

Frequently asked questions

The SC670 error indicates that the operation panel could not successfully establish communication with the main Base Control Unit (BCU) upon startup.

Yes, as it prevents the machine's operating system from loading, effectively rendering the printer unresponsive until the connection is restored.

No, this is a logic board communication error and has no relationship with toners or other print consumables.

Use a high-quality line conditioner or UPS to protect against voltage fluctuations that can disrupt the communication bus.