SC672mp-171

Ricoh MP 171 error SC672: Startup Communication Fault

The Ricoh MP 171 error SC672 is a warning of an internal communication failure during the system startup process. This happens when the controller board fails to establish a stable connection with the operation panel. It is a system lock that prevents any copying or printing until the electrical or logical fault is addressed. This multifunctional model relies on a constant handshake signal to operate correctly.

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Common causes

  • 1Communication failure between main board and panel.
  • 2Network conflict preventing system initialization.
  • 3Physical damage to BICU board data buses.
  • 4Electrical instability during startup initialization.

Solutions

Quick Diagnostics

The SC672 error usually occurs due to a controller board (BICU) conflict or network handshake failure during startup. If the printer is network-connected, try unplugging the RJ45 cable to rule out an IP conflict.

Step-by-step Solution

  1. Power cycle: Turn off and unplug the unit from the wall for 5 minutes.
  2. Connections: Unplug the LAN cable and any additional accessories.
  3. Retry: Power on the machine alone; if it starts correctly, the problem was an external conflict.
  4. Cleaning: If it persists, a technician must inspect the main board connector pins.

Maintenance and Prevention

Use an UPS or stabilizer to prevent voltage spikes from corrupting board communication. Keep firmware updated.

When to call a technician

If error SC672 appears systematically with no network cable connected, the main board has a hardware fault.

Device technical specifications

  • Technology: Monochrome Laser
  • Speed/Performance: 17 ppm
  • Connectivity: USB/Ethernet
  • Feeding capacity: 250 sheets
  • Compatible supplies: MP 171 Toner
  • Recommended use: Small office
  • Official drivers / firmware

Steps to follow

  1. 1

    Power cycle

    Turn off and unplug the unit from the wall for 5 minutes.

  2. 2

    Connections

    Unplug the LAN cable and any additional accessories.

  3. 3

    Retry

    Power on the machine alone; if it starts correctly, the problem was an external conflict.

  4. 4

    Cleaning

    If it persists, a technician must inspect the main board connector pins.

Frequently asked questions

This error indicates that the control panel did not receive the startup signal from the main board.

If it's just a temporary network conflict, yes; if it's the board, professional support is needed.

None affect startup; focus on electrical and LAN connections.

It is a communication error, locking functionality until the startup process completes.