Ricoh SP4110, SP4210, SP4310 SC543 Fuser Error
Repair Tips for the Ricoh SP4110, SP4210, SP4310 SC543 Fuser ErrorÂ
The Ricoh SP4110, SP4210, SP4310 SC543 Fuser Error  is an overheat error. The service manual doesn’t say a whole lot on the subject. That being said, below you will find what the service manual has to say on the subject and a few other tips that might help you work through this error.
Service Manual Information on the Ricoh SP4110, SP4210, SP4310 SC543 Fuser Error
Description : Fuser Overheat Error
The fusing temperature was detected higher than 235 C for longer than 200 ms.
Possible Solutions :
Fusing Thermistor defective
Power Supply Board Defective
Additional Advice on the Ricoh SP4110, SP4210, SP4310 SC543 Fuser ErrorÂ
Each time the machine reports an Fuser Fault the code needs to be reset in service mode.
- Reset the error and see if the problem continues. Given the fact it was an overheat error I would recommend allowing the fuser to cool down at least 15 to 20 minutes before attempting to reset. Resetting while the fuser is still overheated could cause additional problems.
- Ricoh SP4110, SP4210, SP4310 Service Mode SC Fuser Error Reset
- If the problem goes away, great. You still might want to remove the fuser and check the thermistor and clean if needed.
- Check for proper ventilation and that the operating environment meets equipment specifications. I’ve seen these run in pretty bad locations but it’s still something to consider.
- Verify paper settings and fuser settings match what is being fed through the machine.
- Replace the fuser.
- Ricoh SP4110, SP4210, SP4310 Fuser Replacement Procedure
- Replace the Power Supply Board.
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