The electromagnet is generally a 12V printer with a 12V cash box, and a 24V printer with a 24V cash box. As long as the matching voltage is not likely to be bad even if the cash box is scrapped.
Most of the reasons for this problem are caused by the customer with a 24V printer. If the frequency of use is too high, the solenoid valve coil will be damaged. In part, the use environment is not so good, so that dust enters the inside of the solenoid valve coil, and it will not pop out or accidentally pop up. The cash box is also the same as the transmission mechanism of the transmission mechanism. It is very simple to deal with such problems, as long as the core of the solenoid valve is inserted and the inside is cleaned up. When conditions permit, it is better to add a little bit of sewing machine oil to lubricate it.
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Zhongshan Okay Technology Co., Ltd , https://www.okaygroup.com