Standards governing Prevention of Industrial Robots Hazards Article 28

Employers equipping Robots with tools such as welding torch or spray gun at the front end(end-effector) of the manipulator shall adopt automatic cleaning mechanism to clean the tools to prevent workers from entering the range of motion. However, such requirement does not include those who have difficulty to implement.
中文原文 工業用機器人危害預防標準第28條
雇主在操作機前端設置焊槍、噴布用噴槍等作業工具之機器人,如須對其工具加以清理時,應採用自動清理之方式,以避免工作者進入可動範圍。
但作業有困難者,不在此限。

English translation for reference only; the Chinese text prevails. Not legal advice.