sc545MP 2555SP

Ricoh MP 2555SP Error SC545: Technical Fix

The Ricoh MP 2555SP error SC545 is an overheating notification detected by the fuser sensor. This service code activates when the temperature repeatedly exceeds safe limits, forcing the system into security mode. To fix 531 error on c5800ldn, it is mandatory to reset the error counter in SP Mode once verified that no jams exist. This multifunctional copier is a staple in high-volume environments.

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Common causes

  • 1Main thermistor failure due to long-term wear.
  • 2Defective fuser lamp failing to regulate temperature.
  • 3Overheating caused by non-certified consumables.
  • 4Excessive paper debris accumulation near the fuser.

Solutions

Quick diagnosis

The SC545 error is identified if a 'Call Service' alert appears upon power-up. If the scanner glass feels cold but the fuser reports excessive heat, the thermal sensor may be failing.

Step-by-step solution

  1. Access SP Mode using the sequence [Reset] + [1] + [0] + [7] + [Clear].
  2. Enter the SP 5-810 menu and execute the error code reset.
  3. Power off the machine for 60 seconds and restart.
  4. If the error persists, physically check the fuser thermistor and rollers.

Prevention and maintenance

Perform preventive cleaning of the fuser rollers to avoid toner deposits causing uneven heating. Keep the rear ventilation clear of obstacles to aid heat dissipation.

When to call a technician

If the code reappears immediately after resetting, it signals a physical failure in the halogen lamp or thermistor, requiring authorized technical replacement.

Equipment technical specifications

  • Technology: Electrophotographic laser.
  • Speed/performance: 25 ppm.
  • Connectivity: LAN Gigabit, USB 2.0, SD Card.
  • Feeding capacity: 1,200 sheets (base).
  • Compatible consumable: Ricoh MP 2555 toner (black).
  • Recommended use: Corporate environments.
  • Official drivers / firmware

Steps to follow

  1. 1

    Enter service mode

    Press [Reset] + [1] + [0] + [7] and hold [Clear] to access SP Mode.

  2. 2

    Error reset

    Navigate to SP 5-810 and execute the reset to clear the SC545 code.

  3. 3

    Reboot

    Turn the device off and on to apply the system changes.

Frequently asked questions

The Ricoh MP 2555SP error SC545 is a fuser overheating failure that locks the machine after repeated temperature errors.

Yes, the fuser is a critical component; attempting to print without resolving the cause could damage the roller mechanism.

It uses the MP 2555 series toner and original fuser maintenance kits to ensure component longevity.

Professional technical cleaning is recommended every 150,000 copies to prevent burnt toner buildup.