The cash register has a wide range of applications, and the corresponding cash register system software is selected according to different commercial fields to further improve the working efficiency of the cash register. Powerful features and benefits make users very popular. However, sometimes after the POS cash register has been used for a long time, some small problems will make the cash register more difficult. For example, the common cash register noise during operation, such as vibration noise, fan noise, etc., how to solve these problems? . Today, Xiaobian talks about the basic processing method of cash register noise.
After the POS cash register mainframe has been used for a long time, the inside of the main unit will be covered with dust and should be cleaned regularly. Remember to disconnect the power supply before disconnecting the cash register, and then clean the dust slamming position on the fan blade with a soft brush. After the cleaning work is completed, there will always be a label in the middle of the front of the fan. The label will be uncovered to see the bearing of the fan. Use a cotton swab to draw the lubricating oil on the bearing. Pay attention to the proper amount of oil. Stick the label back after it is done to prevent dust from entering. Need to remind everyone, do not use the oil when filling the fan, the inferior oil will not help the lubrication, but will accelerate the wear of the bearing, you should choose a special product or you can use high-quality sewing machine oil instead.
When the POS cash register is turned on, it will cause high current in an instant, causing noise to the host power supply. Therefore, we can consider replacing a better quality power supply or installing a wave filter to prevent noise from being generated by high current surge.
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