Joke Collection Website - Public benefit messages - Hello, Ricoh 18 10L prompts "function failure, turn off the main power switch before turning it on". What should I do?

Hello, Ricoh 18 10L prompts "function failure, turn off the main power switch before turning it on". What should I do?

Troubleshooting methods of Ricoh copier fault code SC:542: 1 to see if it can be cleared by soft. If not, please continue to the next step. 2. Check whether the thermistor is damaged (95% of the SC5 code that cannot be ruled out in the first step is caused by my experience in 10), and if so, replace it. 3.