Can insufficient power supply cause the Ricoh SC 552-03 error, and how can I check for this?

Yes, an insufficient power supply can indeed contribute to the SC 552-03 error, as the fuser unit requires a significant amount of power to reach and maintain its operating temperature. To check for this, ensure the Ricoh device is plugged directly into a dedicated wall outlet, not into a power strip, extension cord, or an Uninterruptible Power Supply (UPS) that might not be rated to handle the printer's power draw. Also, verify that the outlet itself is functioning correctly and providing stable power.