重複設定Do not repeatedly power on/off the product.•If you power the main power source off and then on again quickly, the product may not be powered on because it is still in the powering off process. In such a case, press the power button to power on the product.•Do not power off the product during operation, such as when printing or updating. Doing so could cause a malfunction of the product.•Do not disconnect the power cord until the powering off process is completed on the product.•An incorrect power on/off operation may damage the product settings. In such a case, the product settings are reset to their default values. It is always recommended to use the power button to allow proper shutdown of the product and ensure changes made to menu settings are saved appropriately.