Fix Ricoh Error SC543: Fuser Overheat Error
critical Severity: critical
If your Ricoh printer is displaying error SC543, do not worry – this is a known issue with a proven fix. This error typically indicates fuser overheat error that can usually be resolved without a service call. Follow the steps below to clear this error.
What Causes Ricoh Error SC543?
This error can be triggered by one or more of the following issues:
- Fuser temperature exceeded safe limit
- Fuser thermostat failure
- Inadequate ventilation
- Fuser thermal cutoff triggered
How to Fix Ricoh Error SC543
Follow these steps in order. After each step, check whether the error has cleared before proceeding to the next one.
- Step 1: Turn off immediately and unplug
- Step 2: Allow to cool for 30+ minutes
- Step 3: Ensure adequate ventilation around the printer
- Step 4: Power on after cooling
- Step 5: If the error persists, the fuser thermostat has failed
- Step 6: Replace the fuser assembly
Affected Ricoh Printer Models
The following Ricoh printer models are known to display error SC543:
- Ricoh SP C261SFNw
- Ricoh SP 377SFNwX
- Ricoh IM C3000
- Ricoh MP C3004
- Ricoh SP C360SFNw
- Ricoh IM C6000
- Ricoh MP 501SPF
- Ricoh SP 3710SF
Related Ricoh Error Codes
If you are troubleshooting error SC543, these related error codes may also be relevant:
- SC542 – Fuser Heater Error
- SC544 – Fuser Temperature Sensor Error
- SC670 – Main Drive Motor Error
- SC400 – Transfer Belt Error
- SC541 – Fuser Low Temperature
Frequently Asked Questions
What is Ricoh error SC543?
SC543 indicates the fuser has overheated. This is a safety error that shuts down the printer to prevent damage or fire risk.
What is the difference between SC542 and SC543?
SC542 means the fuser cannot reach its target temperature (underheating), while SC543 means it has exceeded safe temperature limits (overheating). Both typically require fuser replacement.
Error still not resolved?
If the steps above did not fix the error, the issue may require professional service. Contact the manufacturer support line or visit an authorized service center near you.