Takeaway printer is an indispensable equipment in catering industry, in which buttons are the most frequently used part, and repeated use every day is likely to cause button failure. If your take-away printer button doesn't work, how to fix it?

First, check whether the key is stuck or damaged. If the key is stuck, you can gently spray lubricating oil on the key, and then clean the dust and dirt at the key with soft materials such as toothpicks. If the key is damaged, you need to replace the damaged key.

Secondly, check whether the take-away printer is damp, especially whether the circuit board is damp. If the take-away printer is wet and needs to be dried, it is best to use a professional desiccant or put it in a ventilated and dry place.

Finally, if none of the above methods can solve the problem, you can try to clear the cache of the takeaway printer. The cache of the take-away printer may cause the keys to be invalid, and clearing the cache can solve the problem. The specific method is as follows:

1. Press the reset button of the takeaway printer and wait for the printer to restart.

2. Enter the printer menu and find the "cache clearing" option. Press this option, and then press OK to clear it.

3. Restart the printer and test whether the buttons are normal.

In short, the key failure of the take-away printer is not a big problem, which can be repaired by the above methods. But if you can't solve the problem yourself, it is recommended to contact a professional or printer manufacturer for repair or replacement.