Ricoh SC Error Codes – What They Mean and How to Fix Them
Category: Troubleshooting · Brand: Ricoh
Ricoh SC (Service Call) error codes indicate hardware faults that require attention. Some can be cleared by the user; others require a service technician.
What Is a Ricoh SC Code?
SC codes are categorized by number range:
| Range | Category |
| SC1xx | Scanning / image reading errors |
| SC2xx | Laser / imaging errors |
| SC3xx | Charge / development errors |
| SC4xx / SC5xx | Fusing / fixing unit errors |
| SC6xx | Communication errors |
| SC7xx | Mechanical errors |
| SC9xx | Controller / software errors |
Most Common SC Codes and Fixes
SC541 / SC542 / SC543 / SC544 — Fuser Errors
These are the most frequent SC codes. They indicate the fusing unit is not reaching or maintaining the correct temperature.
Cause: Aging fusing unit, power fluctuation, or thermistor failure.
User fix:
- Power off the printer completely and unplug it from the wall
- Wait 10–15 minutes to let the fuser cool down
- Plug back in and power on — the error may clear on its own
- If it returns after several attempts, the fusing unit needs replacement
SC400 — Transfer Belt / Charge Unit
Cause: Transfer belt worn or charge roller issue.
Fix: Power cycle the printer. If persistent, the transfer belt or charge unit requires replacement by a technician.
SC320 / SC322 — Toner Near Empty / Supply Fault
Cause: Toner cartridge not recognized or improperly installed.
Fix:
- Open the front cover
- Remove the toner cartridge, shake it gently, and reinstall
- Ensure the cartridge contacts are clean — wipe with a dry cloth
SC990 — Printer Controller Error
Cause: Firmware issue or memory corruption.
Fix:
- Power cycle the printer
- If persistent, perform a factory reset: Menu > System Settings > Administrator Tools > Reset Settings
- Reinstall or update the firmware from support.ricoh.com
Clearing an SC Code (User Reset)
For non-critical SC codes, you can attempt a user reset:
- Power off the printer
- Hold the # key (or Clear key on some models) while powering on
- Release when the display shows — the code may be cleared
Note: If the SC code returns immediately or within a few print cycles, the underlying hardware fault must be repaired.
When to Call a Technician
SC codes in the SC5xx fuser range that cannot be cleared, or any SC1xx–SC3xx imaging system codes that persist after power cycling, typically require on-site service.