open rotary printer will always have various problems in the printing process, such as manual and semi-automatic all do not work, the power light is on, the printing base does not work after moving to the left, etc.
 
　　 The first symptom of the malfunction: It acts immediately without stepping on the foot switch when it is semi-automatic.
 
　　 This type of failure is mostly caused by a damaged foot switch or a short circuit caused by water in the foot switch socket. The other is a problem with the manual start button switch. The repair method is to replace the new switch, socket, button switch or disassemble and repair the related damaged parts.
 
　　Second failure phenomenon: Stepping on the foot switch when working semi-automatically, the sliding seat descends, and then rises after releasing it.
 
　　 This kind of phenomenon is generally that the proximity switch on the left side of the sliding seat is damaged or the connection is broken. The solution is to replace the proximity switch or connect the switch connection.
 
　　 The third symptom of the fault: When the foot switch is stepped on during semi-automatic operation, the vertical sliding seat descends, and the printing seat does not move after it moves to the left.
 
　　Flat Screen Printer Factory this kind of failure occurs because the proximity switch on the left side of the slide is not sensed or there is a problem. The solution is to adjust the sensing point of the left proximity switch or replace a good proximity switch; and the micro switch in the foot switch is stuck and does not work, which can also cause this fault. The solution is to adjust, repair or replace the micro switch in the foot switch with a new one.