Sc569-00 Ricoh
The Power Supply Unit (PSU) or the AC Drive Board generates the zero-cross signal. Fluctuating input voltage (dirty AC power, loose wall outlet, overloaded circuit) or failing capacitors on the PSU can corrupt this signal.
SC569-00 indicates that the center thermistor (which monitors the fusing belt temperature) detects a temperature that is abnormally higher or lower than expected compared to the edge thermistors, typically during warm-up or rotation. The machine determines the temperature distribution across the fusing belt is uneven.
John had been using his Ricoh SP C352DN printer for years without any major issues. However, one day, he noticed that the printer had stopped working and displayed an error code: SC569-00. sc569-00 ricoh
Panicked, John tried turning the printer off and on, but the error persisted. He checked the printer's manual and online forums, but the information about the SC569-00 error code was limited.
Determined to fix the issue himself, John decided to investigate further. He discovered that the SC569-00 error code was related to a problem with the printer's developer refresh process. The developer is a critical component in the printer that helps to adhere toner to the paper. The Power Supply Unit (PSU) or the AC
John ordered a replacement developer unit and carefully followed the instructions to install it. After replacing the unit, John restarted the printer and checked if the error had been resolved.
To his relief, the SC569-00 error code had disappeared, and the printer was functioning properly again. John was thrilled to have solved the problem himself and was able to get back to printing his documents without any further issues. The thermistor connects to the printer’s I/O board
From that day on, John made sure to regularly maintain his printer and check for any error codes to prevent similar problems in the future.
The thermistor connects to the printer’s I/O board via a thin wire harness. If this cable is pinched, frayed, or partially unseated from the fuser connector, resistance changes cause false edge-temperature readings.
