The inside of a cash box is primarily made up of a metal mechanical structure, with the exception of the electromagnetic components. Over time, deformation, rust, and aging can significantly impact its functionality. Below are common issues and their solutions:
1. **Cable Failure**
The cash drawer is connected to the printer via a cable, and any break in the wire can prevent the drawer from opening or closing properly. To check for a broken wire, users with the right tools can use a multimeter to test continuity. If the issue persists, replacing the cable is often the best solution.
2. **Electromagnetic Coil Failure**
The electromagnetic coil and striker together form the relay. A faulty relay can usually be identified by listening for the sound of the striker when a command is sent through the software. If the sound is missing, the relay may not be working correctly. In such cases, inspect the striker’s position and apply a small amount of lubricant to the contact area. If the problem continues, the relay should be replaced.
3. **Spring and Rail Issues**
A common symptom of this fault is a weak or sluggish cash box opening. Check if the internal spring has lost its elasticity or is deformed. If so, manually stretching it may help restore function. For rail problems, ensure that the wheels move freely and that the brackets are not bent. Cleaning the rails and applying a little grease can resolve the issue.
4. **Circlip Malfunction**
Circlip failure is often linked to relay issues, as the relay controls the circlip. If either component fails, the other may not function properly. Inspect the circlip for signs of deformation or rust, which can increase friction and prevent the cash box from opening. Correcting the shape, removing rust, and applying lubricant can usually fix the problem.
5. **Lock Failure**
It's common for users to lose keys or experience lock issues. If the cash box is locked and cannot be opened, avoid forcing it, as this could cause further damage. Instead, contact the supplier for assistance in reprogramming the key or replacing the lock. With proper guidance, the cash box can be safely opened without causing harm to the mechanism.
Regular maintenance, including cleaning, lubrication, and inspection, can greatly extend the life of a cash box and prevent many of these common issues.
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